Mitutoyo Caller ID Box LSM 6900 User Manual

No.99MBC071A1  
SERIES No.544  
LSM-6900  
Laser Scan  
Micrometer  
(Display Unit)  
User's Manual  
Read this User’s Manual thoroughly  
before operating the instrument. After reading,  
retain it close at hand for future reference.  
CONVENTIONS USED IN USER'S MANUAL  
On Various Types of Notes  
The following types of notes are provided to help the operator obtain reliable measurement data  
through correct instrument operation.  
IMPORTANT • An important note is a type of note that provides information essential to the completion  
of a task. You cannot disregard this note to complete the task.  
• An important note is a type of precaution, which if neglected could result in a loss of  
data, decreased accuracy or instrument malfunction/failure.  
NOTE A note emphasizes or supplements important points of the main text. A note supplies infor-  
mation that may only apply in special cases (e.g.. Memory limitations, equipment configura-  
tions, or details that apply to specific versions of a program).  
TIP A tip is a type of note that helps the user apply the techniques and procedures described in  
the text to their specific needs.  
It also provides reference information associated with the topic being discussed.  
Mitutoyo assumes no liability to any party for any loss or damage, direct or indirect,  
caused by use of this instrument not conforming to this manual.  
Information in this document is subject to change without notice.  
© Copyright Mitutoyo Corporation 2002. All rights reserved.  
NOTES FOR EXPORTING  
IMPORTANT For exporting this product, be sure to contact our office.  
No. 99MBC071A  
ii  
PRECAUTIONS  
1. Safety Precautions  
The Measuring Unit connected to the Display Unit uses a very low power laser.  
Use of controls or adjustments or performance of procedures other than those  
specified herein may result in hazardous radiation exposure.  
CAUTION  
1) The IEC standard provides for two classes of laser product: a Class 2 laser product uses  
a visible laser (maximum power: 1.5 mW for scanning; laser device: semiconductor  
laser; wavelength: 650 nm).  
2) Do not look directly into the laser beam. (Even if it seems that no light is being emitted  
from the emission window, do not look into it.)  
3) Do not stare the laser beam directly through optical instrument, such as a magnifying  
lens.  
4) If measuring flat objects with mirror finishes, avoid looking at the reflection on the  
surface.  
5) Close the beam shutter when the instrument is not in use.  
6) Do not remove the laser class identification labels attached to the Measuring Unit.  
7) Before using this unit, carefully read the “Measuring Unit Specifications” and “Precau-  
tions on Use of Laser” sections provided in the manual supplied with the Measuring  
Unit.  
CAUTION  
CAUTION  
LASER RADIATION-DO NOT  
STARE INTO BEAM  
1.5mW(peak) SCANNING LASER  
LASER LIGHT-DO NOT  
STARE INTO BEAM  
SEMICONDUCTOR LASER 650nm  
1mW-650nm  
CLASS II LASER PRODUCT  
CLASS 2 LASER PRODUCT  
IEC 60825-1 (1997-09)  
2. Before making the connection between the Measuring Unit and the Display Unit, turn off the  
power. If an optional device is to be connected to this system, make sure that the optional  
device is also turned off.  
3. Firmly tighten the screws of the cable connectors and interfaces to ensure shielding.  
4. Do not touch the terminals of the connectors, otherwise contact may be poor.  
5. Positively ground the Display Unit.  
6. An error display may appear during operation. However, it may not always indicate a fault. If  
an error display appears, consult the Maintenance and Inspectionsection.  
Do not open the covers provided on the emission unit and reception unit.  
iii  
No. 99MBC071A  
INSTALLING CONDITIONS  
The Mitutoyo Laser Scan Micrometer is both a precision optical instrument and a precision  
electronic instrument and this unit is the instrument suitable for indoor use as well. Therefore,  
it must be carefully installed and the following conditions must be taken into consideration to  
attain the highest possible accuracy.  
1. Vibration  
Install this unit if possible in a place where it will not be subject to vibration. If this unit is  
used for a long period of time in an environment where there are significant vibrations, the  
precision parts in this unit may be affected, resulting in the deterioration of measuring  
accuracy.  
If this unit has to be used in an environment where vibration is significant, measures such as  
the laying of a vibration damping rubber pad under the unit must be applied to reduce the  
effect of vibration.  
2. Dust  
Dust and airborne particles at the installation site adversely affect optical parts including the  
protective glass and electronic parts of the Measuring Unit. Place this unit in a place with as  
little dust and as few airborne particles as possible.  
3. Direct sunlight  
If this unit is subjected to direct sunlight, the heat may deform this unit and affect the  
measuring accuracy.  
If this unit must be placed by a window where it will be subjected to direct sunlight, protect  
the unit by shading it.  
4. Ambient temperature and humidity  
This unit must be operated in an environment where the temperature is between 0 and 40˚C  
and the humidity is between 35 and 85% RH. Avoid installing this unit where there is  
significant temperature or humidity change.  
Significant temperature and humidity changes may reduce measuring accuracy.  
WARRANTY  
In the event that the Mitutoyo Laser Scan Micrometer (LSM) should prove defective in  
workmanship or material, within one year from the date of original purchase for use, it will  
be repaired or replaced, at our option, free of charge upon its prepaid return to us.  
If the unit fails or is damaged because of the following causes it will be subject to a repair  
change, even if it is still under warranty.  
1. Failure or damage due to inappropriate handling or unauthorized modification.  
2. Failure or damage due to transport, droppage, or relocation of the machine after  
purchase.  
3. Failure or damage due to fire, salt, gas, abnormal voltage, or natural catastrophe.  
This warranty is effective only where the machine is properly installed and operated follow-  
ing this manual.  
No. 99MBC071A  
iv  
CONTENTS  
CONVENTIONS USED IN USER'S MANUAL ................................................................. i  
NOTES FOR EXPORTING ...............................................................................................ii  
PRECAUTIONS ...............................................................................................................iii  
INSTALLING CONDITIONS ........................................................................................... iv  
WARRANTY.................................................................................................................... iv  
1. INTRODUCTION ................................................................................................... 1-1  
1.1 Outline ........................................................................................................... 1-1  
1.2 Foreword ....................................................................................................... 1-1  
1.3 Nomenclature ................................................................................................ 1-2  
1.3.1 Display Unit....................................................................................... 1-2  
1.3.2 Measuring Unit.................................................................................. 1-4  
2. SETUP .................................................................................................................. 2-1  
2.1 Unpacking and Acceptance Check............................................................... 2-1  
2.2 Connecting the Cables ................................................................................. 2-1  
2.3 Preliminary Checks ....................................................................................... 2-5  
2.4 Initializing the LSM-6900 Display Unit .......................................................... 2-6  
3. DISPLAYS AND KEY OPERATIONS .................................................................. 3-1  
3.1 Outline of the Operation Modes ................................................................... 3-1  
3.1.1 Measurement Principle ..................................................................... 3-1  
3.1.1.1 Overview ................................................................................. 3-1  
3.1.1.2 Setting the segment ............................................................... 3-3  
3.1.1.3 Measurement interval (measurement time) ........................... 3-4  
3.1.2 Outline of the Operation Modes ....................................................... 3-5  
3.1.2.1 Basic setup mode ................................................................... 3-6  
3.1.2.2 Calibration mode .................................................................... 3-6  
3.1.2.3 Measuring condition setup mode ........................................... 3-6  
3.1.2.4 Other setup mode................................................................... 3-6  
3.1.2.5 Statistic display mode............................................................. 3-6  
3.1.2.6 Measurement mode................................................................ 3-7  
3.2 Techniques and Terminology of Setup Functions ........................................ 3-9  
3.2.1 Program ............................................................................................ 3-9  
3.2.2 Basic setup ....................................................................................... 3-9  
3.2.3 Function setup ................................................................................ 3-10  
3.2.4 Setups according to the property of each workpiece..................... 3-10  
3.2.4.1 Transparent object (Workpiece that transmits light) ............ 3-10  
3.2.5 Latch (holding) of the displayed value ........................................... 3-10  
3.2.6 Automatic measurement with an edge specification ...................... 3-11  
3.2.7 GO/NG judgment ............................................................................ 3-12  
3.2.8 Abnormal data elimination .............................................................. 3-14  
3.2.9 Offset/Zero-set ................................................................................ 3-15  
3.2.10 Mastering ........................................................................................ 3-16  
3.2.11 Reference value.............................................................................. 3-16  
3.2.12 Data output conditions .................................................................... 3-17  
3.2.13 Automatic workpiece detection <Diameter detection method,  
Position detection method> ............................................................ 3-17  
3.2.14 Group judgment .............................................................................. 3-20  
3.2.15 Recording the amount of light ........................................................ 3-21  
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No. 99MBC071A  
3.3 Outline of the Display Contents .................................................................. 3-22  
3.3.1 Display unit ..................................................................................... 3-22  
3.3.2 Data display unit ............................................................................. 3-22  
3.4 Outline of Key Operations .......................................................................... 3-24  
3.4.1 Description of key functions ........................................................... 3-25  
3.4.2 Example key operations ................................................................. 3-29  
4. SETTING UP THE MEASURING CONDITIONS ................................................. 4-1  
4.1 Basic Setup ................................................................................................... 4-1  
4.1.1 Outline of the basic setup procedure ............................................... 4-2  
4.1.2 Description of each mode................................................................. 4-3  
4.1.2.1 Selecting and setting the function in the B0 mode. ............... 4-4  
a. Setting the resolution (Guidance: RES) ............................ 4-4  
b. Setting the number of blank-out digits (Guidance: BLN) .. 4-5  
c. Putting a comma after the thousandths digits  
(Guidance: (,)) ................................................................... 4-5  
d. Setting the buzzer function (Guidance: BUZZER) ............ 4-6  
e. Setting the display latch timer (Guidance: LATCH) .......... 4-6  
4.1.2.2 Selecting and setting the function in the B1 mode. ............... 4-7  
a. Setting the output function in the ready state  
(Guidance: D.OUT)............................................................ 4-7  
b. Setting the analog output voltage if Err-0 occurs  
(Guidance: ERR-0 V) ........................................................ 4-7  
c. Selecting the display message if Err-0 occurs  
(Guidance: ERR-0 D) ........................................................ 4-7  
d. Selecting the display message at the start of measurement  
(Guidance: RUN D) ........................................................... 4-8  
e. Selecting the averaging method (Guidance: AVG.M)....... 4-8  
f. Setting the GO/NG judgment method  
(Guidance: JDG.M)............................................................ 4-8  
g. Setting whether the target value is copied to the  
reference value (Guidance: COPY) .................................. 4-9  
4.1.2.3 Selecting and setting the function in the B2 mode .............. 4-10  
a. Setting the workpiece type (Guidance: WORK.P) .......... 4-10  
b. Setting the simultaneous measurement  
(Guidance: PROG) .......................................................... 4-10  
c. Selecting the method of specifying segments  
(Guidance: SEG) ............................................................. 4-11  
4.1.2.4 Selecting and setting the function in the B3 mode .............. 4-12  
a. Setting the abnormal value elimination function  
(Guidance: ADE) ............................................................. 4-12  
b. Setting the automatic workpiece detecting function  
(Guidance: AWDT) .......................................................... 4-12  
c. Setting the number of scans (Guidance: SCAN) ............ 4-12  
d. Setting the group judgment (Guidance: GTJ) ................. 4-13  
e. Setting the group judgment output (Guidance: GTJ D) .. 4-13  
No. 99MBC071A  
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4.1.2.5 Selecting and setting the function in the B4 mode .............. 4-14  
a. Setting the use of RS-232C port (Guidance: RS-232C). 4-14  
b. Setting the RS-232C communication baud rate  
(Guidance: BAUD)........................................................... 4-14  
c. Setting the RS-232C communication data bits  
(Guidance: LENGTH) ...................................................... 4-14  
d. Setting the RS-232C communication parity bit  
(Guidance: PARITY)........................................................ 4-15  
e. Setting the delimiter for communication  
(Guidance: DELIMT)........................................................ 4-15  
f. Setting the RS-232C line control  
(Guidance: CONTRL) ...................................................... 4-15  
4.1.2.6 Selecting and setting the function in the B5 mode .............. 4-16  
a. Setting the RUN input function from the I/O interface  
(Guidance: RUN) ............................................................. 4-16  
b. Setting the OFFS input function from the I/O interface  
(Guidance: OFFS) ........................................................... 4-16  
c. Setting the GO output function from the I/O interface  
(Guidance: GO) ............................................................... 4-17  
4.1.2.7 Selecting and setting the function in the B6 mode .............. 4-17  
a. Setting the use of DCU (Guidance: DCU) ...................... 4-17  
4.2 Calibration ................................................................................................... 4-18  
4.2.1 Calibration gages and gage stand ................................................. 4-18  
4.2.2 Entering the calibration mode......................................................... 4-18  
4.3 Positioning a Gage or a Workpiece............................................................ 4-22  
4.4 How to read-in the amount of light ............................................................. 4-22  
4.5 Setting Up the Functions ............................................................................ 4-23  
4.5.1 Outline of the function setup mode ................................................ 4-23  
4.5.2 Outline of each function setup mode ............................................. 4-25  
4.5.3 Function setup mode ...................................................................... 4-26  
4.5.3.1 F0: Setting the segment ....................................................... 4-26  
4.5.3.2 F1: Setting the measurement interval (measurement time) 4-28  
4.5.3.3 F2: Setting the GO/NG judgment criteria ............................. 4-30  
4.5.3.4 F3: Setting the reference value ............................................ 4-34  
4.5.3.5 Analog voltage output and scale value ................................ 4-35  
4.5.3.6 F4: Setting the offset value .................................................. 4-37  
4.5.3.7 F5: Setting the data output conditions ................................. 4-39  
4.5.3.8 F6: Setting the sample measurement .................................. 4-40  
4.5.3.9 F7: Automatic workpiece detection setting .......................... 4-41  
4.5.3.10 F8: Setting the group judgment............................................ 4-42  
4.5.3.11 Confirming the function setup contents................................ 4-43  
5. MEASUREMENT MODE ...................................................................................... 5-1  
5.1 Outline of the Measurement Mode ............................................................... 5-1  
5.1.1 Settings made in the measurement mode ....................................... 5-1  
5.1.1.1 Setup operation from the arrow key....................................... 5-2  
5.1.1.2 Setup that can be made directly from each setup item key .. 5-4  
5.2 Other Functions ............................................................................................ 5-5  
5.2.1 Key lock ............................................................................................ 5-5  
5.2.2 Displaying the measuring position.................................................... 5-5  
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No. 99MBC071A  
5.3 Applied Measurement ................................................................................... 5-6  
5.3.1 Diameter measurement of a precision-machined workpiece ........... 5-6  
5.3.2 Measurement of the lead pitch of a multiple-pin IC ......................... 5-7  
5.3.3 Applied Measurement with Offset/Zero-Set Functions..................... 5-9  
5.3.4 Sample measurement..................................................................... 5-12  
5.3.5 Applied measurement with automatic workpiece detection ........... 5-14  
5.3.6 Applied measurement on a stepped round bar.............................. 5-16  
6. INTERFACE UNIT ................................................................................................ 6-1  
6.1 Standard Interface ........................................................................................ 6-1  
6.1.1 I/O Analog Interface.......................................................................... 6-1  
6.1.1.1 External view of the connector ............................................... 6-1  
6.1.1.2 Terminal names ...................................................................... 6-2  
6.1.1.3 Input/output equivalent circuit................................................. 6-2  
6.1.1.4 Timing chart ............................................................................ 6-5  
6.1.2 RS-232C Interface ............................................................................ 6-7  
6.1.2.1 Specifications.......................................................................... 6-7  
6.1.2.2 Connections ............................................................................ 6-8  
6.1.2.3 Printer interface .................................................................... 6-10  
6.1.2.4 RS-232C/GP-IB commands ................................................. 6-10  
6.1.2.5 List of commands ................................................................. 6-12  
6.1.2.6 List of response commands if an error occurs .................... 6-14  
6.1.2.7 Format of response commands ........................................... 6-15  
6.1.2.8 Other commands .................................................................. 6-16  
6.1.2.9 Details of command descriptions ......................................... 6-17  
6.1.2.10 An example Program of RS-232C Communication ............. 6-25  
6.1.2.11 An example Program of GP-IB Communication Control ..... 6-26  
6.2 Optional Interface........................................................................................ 6-27  
6.2.1 Digimatic Output Unit interface....................................................... 6-27  
6.2.1.1 Method of use....................................................................... 6-27  
6.2.1.2 Name of each part................................................................ 6-28  
6.2.1.3 I/O specifications .................................................................. 6-29  
6.2.1.4 Timing chart .......................................................................... 6-30  
6.2.1.5 Data format ........................................................................... 6-31  
6.2.2 Second Analog I/O Interface .......................................................... 6-33  
6.2.2.1 Method of use....................................................................... 6-33  
6.2.2.2 Name of each part................................................................ 6-33  
6.2.2.3 I/O Interface .......................................................................... 6-34  
6.2.2.4 Analog output ....................................................................... 6-43  
6.2.3 BCD interface ................................................................................. 6-44  
6.2.3.1 Method of use....................................................................... 6-44  
6.2.3.2 Name of each part................................................................ 6-44  
6.2.3.3 Specification ......................................................................... 6-45  
6.2.4 GP-IB interface ............................................................................... 6-49  
6.2.4.1 Method of use....................................................................... 6-49  
6.2.4.2 Name of each part................................................................ 6-49  
6.2.4.3 Specification ......................................................................... 6-50  
6.2.4.4 Functions .............................................................................. 6-52  
6.2.4.5 Operations ............................................................................ 6-53  
No. 99MBC071A  
viii  
6.3 Installing the Optional Interface Unit .......................................................... 6-54  
6.3.1 Digimatic Output Unit...................................................................... 6-55  
6.3.2 Second Analog I/O, BCD, and GP-IB interfaces............................ 6-55  
7. INSPECTION AND MAINTENANCE.................................................................... 7-1  
7.1 Display Unit ................................................................................................... 7-1  
7.1.1 Display check.................................................................................... 7-1  
7.1.2 Cleaning method............................................................................... 7-1  
7.2 Measuring Unit .............................................................................................. 7-2  
7.2.1 Laser emission status indicator LED ................................................ 7-2  
7.2.2 Cleaning optical parts ....................................................................... 7-2  
7.2.3 Replacement of protection glass ...................................................... 7-3  
7.3 Error Messages and Remedies .................................................................... 7-4  
7.4 Troubleshooting and Remedies .................................................................... 7-5  
7.5 Fuse replacement ......................................................................................... 7-6  
8. SPECIFICATIONS (DISPLAY UNIT) ................................................................... 8-1  
8.1 LSM-6900 Display Unit ................................................................................. 8-1  
9. RESTRICTIONS ASSOCIATED WITH THE COMBINATION OF FUNCTIONS,  
TABLES OF THE BASIC SETUP MODES ......................................................... 9-1  
9.1 Restrictions Associated with the Particular Combination of Functions ........ 9-1  
9.2 List of Setup Modes ...................................................................................... 9-3  
9.2.1 List of basic setup modes................................................................. 9-3  
9.2.2 List of calibration functions ............................................................... 9-4  
9.2.3 Reading in the amount of light ......................................................... 9-4  
9.2.4 List of function setup modes ............................................................ 9-5  
SERVICE NETWORK  
ix  
No. 99MBC071A  
INTRODUCTION  
This chapter describes the Laser Scan Micrometer (LSM) models and  
nomenclature of the Display unit and the Measuring unit.  
1
1.1 Outline  
This system is an accurate, non-contact measurement system capable of measuring workpiece  
dimensions at a high speed using a highly directional scanning laser beam.  
This non-contact optical measuring system is capable of measuring workpieces which are  
difficult to measure with conventional measuring instruments. It performs simple and  
accurate measurement of brittle or elastic objects, objects at high temperature, objects which  
must be kept clean, and soft objects which may be deformed and suffer dimensional changes  
under the measuring forces used.  
1.2 Foreword  
The Measuring Unit LSM-902 is used for this Display Unit.  
This user’s manual primarily explains the functions of the Display Unit. For information  
about the safety precautions, specifications, dimensions, standard accessories, and options for  
each Measuring Unit, refer to the user’s manual supplied with the LSM-902.  
The Measuring Unit uses a laser. For safe operation, carefully read and follow the  
“Safety Precautions on Use of Laser” section described in the user’s manual that is  
supplied with each Measuring Unit.  
WARNING  
No. 99MBC071A  
1 - 1  
1.3 Nomenclature  
This section gives the name of each part in the LSM system.  
1.3.1 Display Unit  
(1) Front panel  
Data display  
Operation keys  
S.PR  
PRINT  
Mitutoyo  
LASER SCAN MICROMETER  
LSM-6900  
SHIFT RUN  
C.RUN  
SET  
C
PROG.  
READ  
H.CAL  
L.CAL  
7
4
1
0
8
5
2
9
6
3
LIMIT  
MASTER  
OFFSET  
LOCK  
CAL  
OFFSET  
S.E  
DUAL  
+/-  
REF  
ENT  
LASER EMISSION  
-NG GO +NG  
RUN BUSY  
LOCK A.CL STAT  
UNIT M.CL S.E  
Status indicator LEDs (lit/unlit)  
Workpiece position indicator LED  
Power switch  
Stand  
(2) Displays and keys  
S.PR  
PRINT  
RUN  
7
C.RUN  
SET  
C
SHIFT  
READ  
H.CAL  
L.CAL  
8
5
2
9
LIMIT  
4
6
3
MASTER  
OFFSET  
1
REF  
ENT  
0
+/-  
LOCK A.CL STAT  
UNIT M.CL S.E  
1 - 2  
No. 99MBC071A  
1. INTRODUCTION  
(3) Rear panel  
Optional Interface add-on space  
(Second Analog I/O Unit, BCD Output Unit, GP-IB Unit)  
Name plate  
Optional Digimatic Output Unit  
add-on space  
AC power inlet  
FOOT  
SW.  
Fuse holder  
SCAN SIG.-1  
ID UNIT 1  
ID  
TRANSMITTER-1  
REMOTE INTERLOCK  
RS-232C  
I/O ANALOG  
AC power inlet  
Foot switch  
Analog I/O connector  
ID Unit Protection cover  
Signal cable connector  
Scanning signal connector  
Remote interlock connector  
RS-232C connector  
TIP 1. A label which describes the terminal block name I/O ANALOGcan be seen if the  
protective cover of the Analog I/O terminal block is opened. Use this for wiring.  
2. The terminal located at the left end of the power input terminal and marked (by a  
symbol  
or  
) is the grounding terminal to keep the potential of signal line of  
this unit equal with other instrument connected. It is used to enhance resistance  
against electrical interference.  
IMPORTANT Precautions for wiring the terminal block  
1. If wiring the I/O analog terminal and Power input terminal, do not directly touch the  
output terminals of the terminal block by hand, which has static charges, because  
the internal circuit may be damaged by static discharge.  
If your hands are charged, discharge the static energy by touching the metallic  
surface of the Display Unit in advance. In addition, unplug the power cable from  
the outlet before commencing wiring.  
2. After wiring has been completed, close the protective cover.  
3. Do not touch the input terminals on the terminal block during operation, otherwise  
an operation error may result.  
No. 99MBC071A  
1 - 3  
1.3.2 Measuring Unit  
Emission window  
Reception window  
Shutter  
Laser emission  
indicator LED  
Signal cable  
Reception unit  
Emission unit  
Serial number label  
1 - 4  
No. 99MBC071A  
SETUP  
This chapter describes the connection between the Display Unit and  
Measuring Unit.  
2
2.1 Unpacking and Acceptance Check  
Your LSM has been thoroughly inspected prior to shipment. The mechanical, electrical, and  
optical systems are guaranteed to operate properly.  
Unpack the package and check that the accessories, for the Display Unit or Measuring Unit,  
and signal cables, etc., are intact and not damaged.  
Contact Mitutoyo if anything is damaged or missing.  
2.2 Connecting the Cables  
Make sure that the power switch is turned off (turn the key switch counterclockwise to align  
with “O”, then pull it out), then connect the cables according to the following procedure.  
Step 1: Integrating the option interface  
For the option interface (Second Analog I/O Unit, BCD Output Unit, GP-IB Unit,  
and Digimatic Output Unit) to become available with the LSM, it must be installed  
by referring to Chapter 6.3 “Installing the Optional Interface Unit”.  
For information about the setup switches on the BCD and GP-IB interface units refer  
to Section 6.2.3, “BCD Interface” and Section 6.2.4, “GP-IB Interface”, respectively.  
No. 99MBC071A  
2 - 1  
Step 2: Attaching the ID unit  
1.Loosen the two screws that secure the ID unit protection cover at the left on the  
real panel of the Display Unit and remove the cover by sliding it rightward.  
2.Remove the dummy ID unit (amber) that has been mounted at the left of the  
“TRANSMITTER-1” connector on the rear panel of the Display Unit, then insert  
the ID unit (beige) that comes in the same package as the Measuring Unit.  
This ID unit stores critical data that ensures the accuracy of the Measuring Unit  
and has the same serial number as the accompanying Measuring Unit. Confirm that  
these two numbers are identical before inserting the ID unit.  
ID unit slot  
ID UNIT 1  
SCAN SIG.-1  
TRANSMITTER-1  
REMOTE INTERLOCK  
ID  
ID unit  
Serial number  
label  
ID unit  
Measuring unit  
3.Replace and secure the ID unit protection cover reversing the procedures in step 1  
above.  
2 - 2  
No. 99MBC071A  
2. SETUP  
IMPORTANT • If the dummy ID unit is still mounted, “  
PROG  
PROG  
is displayed in the lower section of the display. If  
this is the case, turn off the power and replace the  
dummy ID unit with a proper ID unit.  
• If the ID unit is not installed or if the serial number of  
the Measuring Unit is not consistent with that on the  
ID unit, the system will not work and an error code  
as shown at the right will be displayed at power on.  
At the same time, the 6-digit serial number of the  
measuring unit is displayed for confirmation.  
If the  
key has been pressed to enter the ready state, measurement can be  
C
automatically started. However, the measuring accuracy can not be guaranteed.  
Power cord  
ID unit  
Signal cable  
GND lead wire  
Remote interlock  
Step 3: Connecting the signal cable  
Insert the round plug (12-pin) of the signal cable into the upper connector (12-pin)  
on the rear panel of the emission unit. Tighten the ring screw to firmly secure the  
connectors.  
Insert the square connector (15-pin) on the other end of the signal cable into the  
connector TRANSMITTER-1at the upper left of the display rear panel and tighten  
the securing screws.  
Step 4: Connecting the power cord and GND lead wire  
Connect the supplied power cord to the AC connector at the upper right on the rear  
panel of the Display unit. Also be sure to ground the Display unit with the GND lead  
wire for improved resistance to noise.  
Grounding must be done properly:  
Connect the supplied grounding wire, after cutting it to the minimum length, to the  
grounding terminal provided on the Display Unit. This unit operates as a precision  
analog processor and, at the same time, a high-speed calculation unit. To enhance  
resistance against electrical interference and to increase safety, do not neglect  
grounding.  
No. 99MBC071A  
2 - 3  
Step 5: Checking the remote interlock connector  
Make sure that the short-circuiting pin is inserted into the REMOTE INTERLOCK”  
connector on the rear panel of the Display Unit. If this short-circuiting pin is not  
inserted, laser emission is disabled, even if the power switch is on.  
To emergency stop laser emission, refer to the following diagram.  
Switch ON: Laser emission ON  
Switch OFF: Laser emission OFF  
Short-circuiting pin  
Switch  
Applicable connector: PJ-2  
(Manufacturer: Sato Parts)  
5V, 3mA  
Step 6: Connecting the interface  
For information about the procedure used to connect the interface, refer to Section  
6.1.1, I/O Analog Interfaceand Section 6.1.2, RS-232C Interface.  
IMPORTANT 1. Note the following when connecting the signal cable.  
For information about the precautions to be observed when connecting the signal  
cable refer to the external view and dimensions in the Section 8.1, LSM-6900  
Display Unit.  
2. Note the following when making cable connections.  
Always make connection or disconnection with the power cord unplugged. In  
addition, before connecting to the interface make sure that the power to all other  
units connected or to be connected are also off.  
Do not disassemble this unit. This unit is a precision instrument. Should it be disas-  
sembled by the user, its accuracy can not be guaranteed even within the term of its  
warranty. And, there will be a charge for repairs.  
Observe the following to avoid electric shock.  
1. If an optional interface needs to be installed inside the Display Unit, unplug the  
power cord from the inlet and put the power switch in the OFF position, then pull  
off the key switch.  
2. Do not remove the protective cover on which the seal is stuck to. Otherwise, an  
electric shock may result.  
3. Do not remove the seal, shown at the left.  
2 - 4  
No. 99MBC071A  
2. SETUP  
2.3 Preliminary Checks  
The necessary connections should be completed by following the procedure described in the  
previous chapter. Simplified operation checks are described here.  
Step 1: Fully open the lens cap and shutter of the Measuring Unit.  
Fully open the lens caps and beam shutters of both the emission unit and reception  
unit to ready the laser beam for emission.  
The lens caps should be completely removed, and the shutters should be as shown in  
the diagram below.  
Emission window  
Shutter window  
Shutter  
If the shutter is closed  
If the shutter is open  
Step 2: Power on  
Turn the power key switch on the Display Unit clockwise until it is in the I  
(power on) position and the power is on.  
This unit enters the self check mode and all the LEDs and segments turn on. They  
will turn off shortly, and eights  
When is displayed across the upper display section, the unit will  
turn off shortly. This is followed by the self check on the lower display section.  
will be displayed in the upper display section.  
PROG  
PROG  
In the lower display section eights will appear sequentially from the left to  
right.  
After  
turn off shortly.  
is displayed across the lower display section, it will  
PROG  
PROG  
Measurement is started.  
The LASER EMISSION LED turns on and the BUSY LED starts flashing to  
indicate the measurement has started from the ready state.  
Since the objective segment has been set to  
SEG 1at the factory, the displayed measure-  
ment shows the laser scanning range of the  
Measuring Unit.  
PROG  
Here, the Display Unit is found to be normal  
because the scanning range is displayed.  
Proceed to Chapter 3, DISPLAYS AND KEY  
OPERATIONS, to custom set up each  
function.  
No. 99MBC071A  
2 - 5  
An error may be displayed at this stage,  
however, the display at the right is not actually  
an error. Check the shutter of the Measuring  
Unit.  
PROG  
For information about other errors that may result refer to Section 7.3, Error  
Messages and Remedies.  
2.4 Initializing the LSM-6900 Display Unit  
After making sure that this unit is operating normally, initialize the Display Unit so it can  
recognize the Measuring Unit(s) to be used.  
Initialization of the Display Unit is also required if the Measuring Unit needs to be changed.  
In addition to replacing the ID unit that is associated with the Measuring Unit, initialize the  
Display Unit (i.e. restore the factory setups) with the following procedure.  
The initialization procedure is as follows:  
Step 1: Turn off the power and connect the Measuring Unit with the ID unit that comes with  
the Measuring Unit installed.  
Step 2: Turn on the power while holding down the  
key.  
C
Hold down the key for approximately 2 seconds, even after the power is on.  
C
Step 3: When the self check has been completed, the  
display shown at the right will appear. To initial-  
PROG  
ize, press the  
key. When the initialization  
ENT  
process has been completed, the display restors  
the initial conditions that existed just after the  
power on.  
To abort initialization press a key other than the  
key or turn the power off.  
ENT  
In the former case the initialization process will be aborted and the initial display at  
power-on will be restored.  
IMPORTANT Initialization will clear all the customer setup data and will restore the factory-setups.  
Customize the setups again as necessary.  
2 - 6  
No. 99MBC071A  
DISPLAYS AND KEY  
OPERATIONS  
This Display Unit is provided with many useful functions that can be  
customized according to the user's needs.  
3
This chapter describes these functions and key operations.  
3.1 Outline of the Operation Modes  
3.1.1 Measurement Principle  
In order for the user to understand the measurement principle of the LSM, the following  
paragraphs describe about the system block diagram, segments (measurement positions) and  
measurement interval (measurement time).  
3.1.1.1 Overview  
Unlike light emitted from natural sources, a laser provides extremely fine, rectilinear beams  
which do not diffuse (coherent light beams).  
Using the properties of the laser beam, the Mitutoyo Laser Scan Micrometer (LSM) moves a  
scanning laser beam over the workpiece and determines its dimensions by measuring the  
duration in which the beam is obstructed by the workpiece.  
Workpiece  
Emission unit  
Reception unit  
Condenser lens  
Motor  
Colimator lens  
Polygon mirror  
Reception  
device S  
Polygon mirror  
Photoelectric element  
(reset signal generation)  
Amplifier  
Laser power source Semiconductor laser  
RS  
MP  
Motor driving pulse  
Clock pulse  
ROM RAM  
t
t
t
Segment  
selection circuit  
Counter  
Gate  
Edge signal  
Edge signal  
RS  
CPU  
Data display  
Keyboard  
I/O analog  
interface  
RS-232C  
Foot switch  
Option I/F  
No. 99MBC071A  
3 - 1  
The configuration of the system is shown in the above block diagram. A laser beam emitted  
from the laser oscillator is directed at the polygon mirror which rotates at high speed and is  
synchronized by clock pulses. The laser beam that is reflected by the polygon mirror is then  
collimated by the collimator lens towards the workpiece. As the polygon mirror rotates, this  
horizontal beam scans the workpiece and the beam not obstructed by the workpiece will  
reach the photoelectric element through the condenser lens and induce an output voltage in  
the photoelectric element. The output voltage will change according to the duration over  
which the laser beam is obstructed. Counting pulses generated during that period are used to  
determine the dimension of the obstructed portion. This data is sent to the CPU for process-  
ing and the dimensions are displayed digitally.  
Consequently, either the dimensions of the workpiece (shadowed areas) or workpiece  
clearances (highlighted areas) can be determined by specifying the segments to be measured.  
TIP In the system block diagram described in the previous page, the laser beam passed  
through the collimator lens is made parallel and, at the same time, stopped down so  
that the beam diameter is minimized at the measurement position.  
3 - 2  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3.1.1.2 Setting the segment  
Set the objective portion of a workpiece to be measured.  
The highlighted and shaded portions created when the laser scans over the workpiece are  
controlled with each assigned number. In the basic setup a selection must be made from one  
of two cases: case where there are 1 to 4 highlighted and shaded sections, and case where  
there are 1 to 127 similar sections. In the former case the portions are controlled through the  
segment number, and are simply called segments. In the latter case the portions are controlled  
by the edge number (edge number is between 1 and 255) and called edges. Edge numbers  
equal to or greater than 256 are not available.  
Edge specification  
Highlight 1  
Segment specification  
EDGE1  
EDGE2  
Highlight 1  
Shade 1  
SEG1  
SEG2  
SEG3  
SEG4  
SEG5  
SEG6  
SEG7  
Shade 1  
Highlight 2  
Shade 2  
EDGE3  
EDGE4  
Highlight 2  
Shade 2  
EDGE5  
Highlight 3  
Shade 3  
Highlight 127  
Highlight 4  
EDGE254  
EDGE255  
Shade 127  
Highlight 128  
EDGE256  
• A maximum of 4 highlighted sections and a  
maximum of 3 shaded sections can be measured.  
• Multiple segments can be specified at the same  
time.  
• A maximum of 127 highlighted sections and a  
maximum of 127 shaded sections can be mea-  
sured.  
• Always specify the start edge and finish edge  
numbers. These two edges can be either contin-  
ued or separated. However, they must not be  
identical.  
• Specify segments 1 to 3 for a transparent object.  
• Edge numbers can not be specified for a transpar-  
ent object.  
• If automatic measurement is specified in the basic  
setup, intervals, outside diameters, or gaps  
between the same shape of multiple pins can be  
automatically measured.  
No. 99MBC071A  
3 - 3  
3.1.1.3 Measurement interval (measurement time)  
A measurement interval (measurement time) varies depending on the averaging method and  
the number of scans selected for the measurement data.  
There are two types of averaging method: the arithmetical average and the moving average.  
Select the one best suited for the user’s purpose.  
1) Arithmetical average  
• If a moving workpiece is measured, the diameter of the workpiece is determined by  
averaging the measured data taken from each section (a: first measurement, b: second  
measurement, .... n: nth measurement) of the workpiece the specified number of averaging  
times, as shown below.  
first measurement  
second measurement  
. . .  
nth measurement  
a
b
n
Moving direction  
Moving workpiece  
• One of the following number of averaging times can be selected: 1, 2, 4, 8, ....1024, 2048.  
• This is suitable for measuring a still object or the run-out of rollers, etc.  
2) Moving average  
In the moving average method, a measurement interval identical to that in the arithmetical  
average is divided into finer sections such as a1 (1st measurement), a2 (2nd measurement), -  
- - , an (nth measurement). Each measurement is performed almost in parallel. If, for ex-  
ample, the number of averaging times is set to 512, the first measurement requires the  
amount of time that corresponds to 512 scans. However, for the second measurement onward,  
only the time for 16 scannings is required. With respect to a workpiece with a changing  
diameter, this method provides data with smooth variation because of the many pieces of  
data, and also quickly detects the trend of workpiece diameter variation.  
Measurement with  
Measurement with  
arithmetical averaging  
arithmetical averaging  
an  
an measurement  
. . .  
a2  
a2 measurement  
a1 measurement  
a1  
Moving direction  
Moving workpiece  
Output of an measurement  
Output of a2 measurement  
Output of a1 measurement  
• One of the following number of scans can be selected: 32, 64, 128, ....1024, 2048.  
• This method is suitable for the feedback control of wire drawing machines and extruding  
machines.  
3 - 4  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3.1.2 Outline of the Operation Modes  
The LSM system has the following modes:  
1: Basic setup mode, 2: Calibration mode, 3: Function setup mode, 4: Other setup mode, 5:  
Statistical result display mode, and 6: Measurement mode.  
Power ON  
Error check  
SET  
Power ON +  
SET  
1 : Basic setup mode  
6 : Measurement mode  
LOCK  
UNIT  
LOCK  
UNIT  
SHIFT  
H.CAL  
L.CAL  
,
,
Ready state  
4: Other setup mode  
2 : Calibration mode  
RUN  
C.RUN  
,
LOCK  
UNIT  
ENT  
(
)
(
,
)
Measurement in progress  
(Program being executed)  
• Single-run measurement  
• Continuous-run  
ENT  
H.CAL  
L.CAL  
C
SET  
measurement  
MASTER  
OFFSET  
S.PR  
PRINT  
LIMIT  
SHIFT  
REF  
SHIFT  
,
,
,
RUN  
(
)
5 : Statistical result  
display mode  
3 : Function setup mode  
Measured data display  
(Latched display)  
S.PR  
PRINT  
SET  
(
)
SET  
ENT  
• Latch timer  
C
MASTER  
OFFSET  
LIMIT  
REF  
(
,
,
)
No. 99MBC071A  
3 - 5  
3.1.2.1 Basic setup mode  
• This mode is used to customize the basic setup conditions, including the resolution,  
interface conditions, and available functions, according to the measurement requirements.  
For more information, refer to Section 4.1, “Basic Setup”.  
• To enter the basic setup mode turn on the power (turn the key switch clockwise from the  
“O” position to the “I” position) while holding down the  
key for about 2 seconds to initiate the basic setup mode.  
key. Hold down the  
SET  
SET  
3.1.2.2 Calibration mode  
• Depending on the environment in which the LSM is used and the Display Unit - Measur-  
ing Unit combination, measurement errors may result. Therefore, always perform calibra-  
tion prior to use, taking the measuring range and environmental conditions into account.  
If calibration is performed, the errors described above will be reduced and high accuracy  
will be ensured.  
• Before performing calibration, always make the setups for resolution, simultaneous  
measurement, and available segments in the basic setup mode. If this order is reverse, the  
previously set calibration values may be discarded.  
• For more information, refer to Section 4.2, “Calibration”.  
• Press the  
key to enter the HI CAL mode; and press the  
key to enter the LOW  
L.CAL  
H.CAL  
CAL mode.  
3.1.2.3 Measuring condition setup mode  
• This mode is used to set up measuring conditions, including segments (objective portion of  
workpiece to be measured) and GO/NG judgment criteria.  
• Press the  
key to enable all the function setup items established to be set in a batch.  
SET  
• Each of the  
,
,
/
OFFSET , and  
keys allows the individual function  
REF  
LIMIT SHIFT MASTER  
setup item to be established.  
• Press the  
often.  
key to enter the setup operation for the setup item which is used most  
3.1.2.4 Other setup mode  
• This mode is used to set the key lock and to set the unit of measurement.  
• Press the and key to turn on and off the key lock; and press only the  
/
SHIFT  
LOCK UNIT  
/
key to enter the unit change mode.  
LOCK UNIT  
• Press the  
and  
key to enter the measuring position display mode.  
READ  
SHIFT  
3.1.2.5 Statistic display mode  
• Displays the statistical processing results.  
• Press the  
• Press the  
and  
and  
/
keys in the ready state to enter the statistic display mode.  
keys in the ready state to allow the statistical processing  
SHIFT  
SHIFT  
STAT S.E  
/
S.PR PRINT  
results to be printed.  
3 - 6  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3.1.2.6 Measurement mode  
This mode can be divided into the following operational states:  
1) Measurement in the ready state  
• This is the measurement mode that is entered immediately after the power is turned on  
or if another measurement mode is aborted by pressing the  
key (or by the RESET  
C
signal from the I/O interface or the “CL” command from the RS-232C/GP-IB interface).  
• It is used to establish setups for calibration and available functions, which are not part  
of the basic setup items, or to enter another measurement mode including single-run  
measurement.  
• Usually GO/NG judgment and analog output will not take place for measurement in the  
ready state, however, these specifications can be made in the basic setup mode.  
• Measurements in the ready state are unavailable for statistical processing.  
2) Single-run measurement  
• If the  
key (otherwise input RUN via the I/O interface or “R” command via the  
RUN  
RS-232C/GP-IB interface) is pressed, one session of measurement is performed and the  
results will be automatically subject to GO/NG judgment and analog output. In addition,  
the measured data will be outputted for the RS-232C/GP-IB interface, Digimatic Output  
Unit, and printer. The measured data will be held (latched for the specified period) in  
the display.  
• This data will be available for statistical processing.  
3) Continuous-run measurement  
• If the  
key (otherwise input RUN+RESET via the I/O interface or “CR” command  
C.RUN  
via the RS-232C/GP-IB interface) is pressed, one session of measurement is started and  
repeated the specified number of times. The measured data will be automatically subject  
to GO/NG judgment and analog output. In addition, the measured data will be outputted  
for the RS-232C/GP-IB interface, Digimatic Output Unit, and printer.  
• Press the  
or  
key (or if RUN is received from the I/O interface) again to  
C.RUN  
RUN  
terminate the measurement and hold the measured data on the display. If the  
key  
C
(or input RESET via the I/O interface or “CL” command via the RS-232C/GP-IB interface)  
is pressed halfway, the measurement is aborted and the ready state is returned to.  
• The measurements are available for statistical processing.  
4) Continuous measurement with a term specification  
• This will take place where RUN input from the I/O interface has been assigned so as to  
start a term-specified continuous-run measurement in the basic setup.  
• Repeatedly performs single-run measurement while RUN signal input continues, which  
is basically the same as the continuous-run measurement. Therefore, hereafter, continu-  
ous-run measurement includes the ones with a term specification.  
• The measurements are available for statistical processing.  
No. 99MBC071A  
3 - 7  
5) Zero-run measurement  
• A measurement where the number of samples is set to “0” is called a “zero-run mea-  
surement”.  
• If the  
key (otherwise input RUN via the I/O interface or the “R” command via  
RUN  
the RS-232C/GP-IB interface) is pressed, single-run measurement is started and  
repeated until the key is pressed again (or RUN is inputted via the I/O interface  
RUN  
or the “STOP” command is inputted via the RS-232C/GP-IB interface). From the  
measured data the calculation items (mean, maximum value, minimum value, and  
range) that have been set for the sample measurement will be calculated and the  
resulting data will be automatically subject to GO/NG judgment and analog output. In  
addition, the measured data will be outputted for the RS-232C/GP-IB interface,  
Digimatic Output Unit, and printer. The measured data will be held on the display.  
• The measured data are available for statistical processing.  
• This is suitable for run-out measurement and cylindricity measurement.  
6) Sample measurement  
• A measurement where the number of samples is set to “2~999” is called a “sample  
measurement”.  
• In practice this will take place as a single-run measurement or a continuous-run mea-  
surement (with a term specification).  
From the measured data the calculation items (mean, maximum value, minimum value,  
and range) that have been set for the sample measurement will be calculated and the  
resulting data will be automatically subject to GO/NG judgment and analog output. In  
addition, the measured data will be outputted for the RS-232C/GP-IB interface,  
Digimatic Output Unit, and printer.  
• The measured data are available for statistical processing.  
• This is suitable for run-out measurement and cylindricity measurement.  
7) Statistical processing  
• Measured data from single-run and continuous-run measurements can be statistically  
processed (i.e. the number of measurement times, standard deviation, maximum value,  
minimum value, mean, and range are calculated).  
These statistical processing results can be outputted for the display, printer (statistical  
memory for all programs will be cleared after printout), and RS-232C/GP-IB interface.  
• Press the  
/
key (or input “ST” command via the RS-232C/GP-IB interface)  
STAT S.E  
to start statistical processing, and press it again (or input the “NST” command via the  
RS-232C/GP-IB interface) to terminate statistical processing.  
• Press the  
/
key to clear the statistical memory of the foreground program  
A.CL M.CL  
(case of a simultaneous measurement), and press the  
clear the statistical memory of all the programs.  
and  
/
keys to  
SHIFT  
A.CL M.CL  
• These statistical results data will be stored in memory while the power is on, and will  
be lost when the power is turned off.  
3 - 8  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3.2 Techniques and Terminology of Setup Functions  
3.2.1 Program  
• A measurement will automatically be performed according to the registered (programmed)  
contents including the segment (feature to be measured) and GO/NG judgment criteria,  
etc., in advance. Registration is performed in the function setup mode.  
• This unit can hold a maximum of 10 programs, which may include various settings  
suitable for up to ten kinds of workpieces.  
• The user can select, in the basic setup, whether these ten programs are used as individual  
programs (referred to as “single measurement”) or as five pairs of programs (referred to as  
“simultaneous measurement”).  
a) Single measurement  
One session of measurement is performed according to the one specified program.  
This is the factory default.  
b) Simultaneous measurement  
• In one measurement session two programs are executed at one time as a pair. These  
pairs are formed as shown in the figure below.  
• To run a pair of programs, either of the two can be specified via numeric keys  
to and the one specified is called “foreground” program, and its counterpart is  
called “background” program.  
0
9
Pair 4: Program No.4  
No.9  
Pair 3: Program No.3  
No.8  
Pair 2: Program No.2  
No.7  
Pair 1: Program No.1  
No.6  
Pair 0: Program No.0  
Program No.5  
3.2.2 Basic setup  
This is used to customize the basic setup conditions, including the resolution, available  
functions, and interface conditions, according to the measurement requirements.  
This basic setup must be performed at the beginning of a measurement. Note that changing  
the setup of resolution or simultaneous measurement in this basic setup cancel the existing  
calibration values and function setup.  
The basic setup mode is entered by turning on the power while holding down the  
SET  
key.  
Note that no response will be made to an I/O interface input and RS-232C/GP-IB com-  
mand in the basic setup mode.  
For more information, refer to Section 4.1, Basic Setup.  
No. 99MBC071A  
3 - 9  
3.2.3 Function setup  
Use this procedure to set up the conditions necessary for measurement.  
For each program number register measurement conditions including the segment (part  
feature to be measured), measurement interval (measurement time), and GO/NG judgment  
criteria that are the best suited for the objective workpiece.  
To enter the function setup mode press the  
key in the ready state. Each of the  
SET  
,
+
/
OFFSET , and  
keys allows the individual setup item to be  
REF  
LIMIT SHIFT  
MASTER  
established, and the  
key enters the setup operation for items which are most  
frequently accessed for set up.  
For more information refer to Section 4.5, Setting Up the Functions.  
3.2.4 Setups according to the property of each workpiece  
For measuring workpieces that transmit light or have a dimension smaller than the diameter  
of the scanning beam it is critical to make setups that take into account the properties of the  
workpiece.  
3.2.4.1 Transparent object (Workpiece that transmits light)  
a) Round bar  
Workpieces such as fiber optics and glass tubes are more or less transparent, while  
workpieces made of steel are not. This requires different segment settings.  
The segment settings for an opaque object and a transparent object are as follows:  
Setup for measurement of transparent or opaque object is possible in the basic setup.  
Photo-electric signal  
Laser scan direction  
Segment 1  
Segment 1  
Segment 2  
Transparetnt  
Workpiece  
Segment 2  
Segment 3  
Segment 4  
Segment 5  
Segment 3  
For opaque mode  
Binary voltage (SHL)  
For transparent mode  
b) Plate (Sheet)  
If the workpiece being measured is a transparent plate (sheet) with edges that are not  
chamfered or beveled, measurement may be aborted because there is not a sharp  
contrast in the amount of light at the transition from the highlighted portion to the  
shaded portion.  
3.2.5 Latch (holding) of the displayed value  
In a single-run measurement, etc., GO/NG judgment and analog output will be continued  
while the measured data is latched (held) on the display for the specified period of time.  
After the set period elapses, system operation returns to the ready state.  
Set up the display latch timer in the basic setup.  
While the display is being latched, inputs from the I/O interface or RS-232C/GP-IB are still valid.  
3 - 10  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3.2.6 Automatic measurement with an edge specification  
If the edge specification is made, it is possible to automatically measure IC or connector  
leads with respect to their pitch (even intervals), outside diameter, or gap. This is suitable  
for inspecting the IC lead bend, etc.  
Outside  
diameter  
Gap  
Pitch  
Laser  
scanning  
direction  
This function is only in effect if the necessary setups are made for edge specification in  
the basic setup.  
In the function setup designate whether automatic measurement should be performed (for  
pitch/outside diameter/gap measurement) or not (manual measurement). Also designate  
both the start and finish edges.  
This is available in combination with automatic workpiece detection.  
If automatic measurement has also been selected, the following will take place.  
a) In the ready state the first objective portion of the workpiece to be measured will be  
displayed.  
b) Automatic measurement will be involved in a single-run measurement or continuous-  
run measurement.  
If Err-0(insufficient number of edges to be measured) is detected, the measuring  
operation is stopped for the single-run measurement, and the collected measured data is  
cleared for continuous measurement to wait for a proper workpiece to be loaded.  
c) If the measured data is found to be NG, the first source of the NG will be displayed  
and the measuring operation is stopped. If GO results, the mean of all measurements is  
displayed.  
d) If the measured data falls within the range of GO, the elapsed measurement time was as  
follows:  
(Number of measurement edges) x (measurement interval) + (calculation time: 20 ms)  
e) The W.P. LED shows the current portion of the workpiece being measured.  
No. 99MBC071A  
3 - 11  
3.2.7 GO/NG judgment  
All the measured data are subject to GO/NG judgment.  
To enable, set the GO/NG judgment criteria in advance.  
The following settings can be made in the basic setup.  
a) The method of tolerance judgment can be selected from (Lower limit value and upper  
limit value), multi-limit selection (7 limits) and (Target value and tolerance values:  
upper tolerance value and lower tolerance value).  
To output the judgment result with the multi-limit selection it is necessary to select the  
optional Second Analog I/O Interface.  
b) Simultaneous measurement can be specified. To do this, it is necessary to select the  
optional Second Analog I/O Interface for tolerance result output.  
c) For (Target value and tolerance values), the user is permitted to select whether the  
target value is to be copied to the reference value. If it is, the setup guidance for the  
reference value will not appear.  
d) Even in the ready state it is possible to select whether tolerance judgment and analog  
output are performed. If they are, tolerance judgment and analog output will take place  
in the ready state, however, these data are not available for statistical processing.  
e) Abnormal data elimination, tolerance judgment, group judgment, and analog output can  
be performed in a single-run measurement, zero-run measurement, sample measure-  
ment, and continuous-run measurement (with a term specification). The judgment result  
will be indicated by the -NG (red LED), GO (green LED), and +NG (red LED) indica-  
tors and outputted to the I/O interface and RS-232C (including printer)/GP-IB interface.  
f) The following tables show the relationship between the measured data and tolerance  
judgment method  
1) (Lower and upper limit values)  
GO/NG judgment  
Measurement (judged if both the lower and upper limit values are set)  
Measurement < Lower limit value  
-NG  
GO  
Lower limit value Measurement < Upper limit value  
Measurement Upper limit value  
+NG  
2) (Target value and tolerance values)  
Measurement (judged if the target value, lower tolerance value and upper  
tolerance value are set)  
GO/NG judgment  
-NG  
GO  
Measurement < (Target value + lower tolerance limit)  
(Target value + lower tolerance value) Measurement < (Target value + upper  
tolerance value)  
+NG  
Measurement (Target value + upper tolerance value)  
3 - 12  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3) If all limits from L1 to L6 are set for multi-limit selection  
Multi-limit selection output  
GO/NG judgment  
Measurement from L1 to L6 are set.  
Measurement < L1  
L1  
L2  
L3  
L4  
L5  
L6  
L7  
-NG  
GO  
L1 Measurement < L2  
L2 Measurement < L3  
L3 Measurement < L4  
L4 Measurement < L5  
L5 Measurement < L6  
L6 Measurement  
GO  
GO  
GO  
GO  
+NG  
4) If only L1 and L2 are set for multi-limit selection  
Measurement Only L1 and L2 are set.  
Multi-limit selection output  
GO/NG judgment  
(Judgment will not be performed if only one  
stage is set.)  
L1  
L2  
-NG  
GO  
Measurement < L1  
L1 Measurement < L2  
L2 Measurement  
L3 ~ L7  
+NG  
No. 99MBC071A  
3 - 13  
3.2.8 Abnormal data elimination  
The abnormal data elimination function eliminates measurements that are very different  
from those specified for the machined workpiece, from the measurement data (neither the  
measurement is displayed nor is data output performed).  
If, for example, the grindstone of a centerless grinder is controlled based on the measured  
data from the LSM, it is possible that a large measurement error may be created due to the  
coolant used with the workpiece.  
As shown in the figure below where foreign matter (with a height of h) adheres to within  
the averaging region L of the workpiece (with a diameter of D). An abnormal outside  
diameter results in the region of l and the displayed measurement will be (D + lh / L). As  
the result the grinder is subject to improper control that involves some error.  
L
l
h
D
Workpiece  
Workpiece feed direction  
Because the use of this function can eliminate abnormal measurement data generated due  
to the adhered foreign matter, the grindstone can be controlled and fed properly.  
Judgment of valid data or abnormal data will be performed at each measurement interval.  
Valid data includes those satisfy the following relation: Lower abnormal limit (Measure-  
ment) < Upper abnormal limit. All other data will be discarded as abnormal data.  
The following table shows the relationship between measurements and upper and lower  
abnormal limits.  
Measurement (Judged if both the upper and lower  
Eliminate/Do not eliminate  
abnormal limits are set.)  
Eliminate  
Measurement < Lower abnormal limit  
Do not eliminate  
(accepted as a measurement) abnormal limit  
Lower abnormal limit Measurement < Upper  
Eliminate  
Measurement Upper abnormal limit  
In the basic setup select whether this abnormal data elimination function should be used. If  
it is the setting of (lower abnormal limit, upper abnormal limit, and count value) should be  
performed before actual tolerance judgment.  
This count value indicates the number of pieces of abnormal data that occurred until the  
alarm will be issued. This alarm output will be sent to the optional Second Analog I/O  
Interface by CNT form (The alarm will not be issued if the count value is set to zero).  
Abnormal data elimination function effects in single-run and continuous-run measure-  
ments.  
If Err-0(specified workpiece not present) is displayed in the sample measurement, the  
valid data collected will be discarded.  
IMPORTANT If a long series of abnormal data appears, measurement can no longer be continued  
since most of the measured data must be eliminated. To avoid this problem, always  
monitor CNT output.  
3 - 14  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3.2.9 Offset/Zero-set  
This function is used to measure the difference between the workpiece and the reference gage  
or to measure the workpiece that is larger than the measuring range of the LSM.  
a) Offset  
In this system the operation of setting the reference gage dimension is called the  
offset operation.  
This function is applied to measure the absolute dimension of a workpiece.  
b) Zero-set  
Setting the reference gage dimension to 0.0for the purpose of comparing it with a  
workpiece dimension is called the zero-set.  
This function is applied to measure a deviation from the reference gage dimension.  
c) Direction  
Depending on the objective portion of measurement of a workpiece, the positive  
direction (set as 0) or negative direction (set as 1) must be set.  
If, for example, the shaded portion of D in the following diagram is measured, the  
direction must be set as positive (0). If the highlighted portion (gap) of W is to be  
measured for determining the workpiece dimension L, the direction must be specified  
as negative (1).  
Set as positive (0)  
Set as negative (1)  
Reference piece  
W
L
D
Workpiece  
Workpiece  
Reference plane  
Offset operation takes about 1 second to determine the compensation value by measuring  
the reference gage.  
Offset value will be ineffective if the segment or edge number is changed (Offset value is  
unique to each segment or edge).  
NOTE About the gap measurement.  
If it is necessary to measure Segment 1 in such as a runout measurement, use a  
reference pin or knife-edge at the focus position, as shown in the diagram below.  
If this reference pin is not used, repeatability will be reduced.  
Reference pin or knife-edge  
SEG1  
Workpiece  
No. 99MBC071A  
3 - 15  
3.2.10 Mastering  
If the objective workpieces are high-precision gages that are machined successively, the  
above described offset/zero-set values may need to be fine-adjusted to the master. This  
fine-adjustment is called mastering.  
After mastering, the total compensation value will be:  
(Offset value/zero-set value) + ( Mastering value)  
Setting a positive (+) mastering value allows the measurement of a workpiece diameter to  
be greater than the raw measurement, and setting a negative (-) mastering value allows the  
measurement of a workpiece diameter to be smaller than the raw measurement.  
Because no measurement is required for this mastering, the reference gauge is not required  
either.  
Mastering will be cancelled if subjected to offset/zeroset.  
Set the reference gage dimension with the offset function and perform mastering.  
3.2.11 Reference value  
This function is used to output deviations (measured data - reference value) between the  
reference value and the actual measurements of a workpiece for the Analog I/O Interface.  
Before analog output, set the reference value and the scale value (gain).  
Measured data is outputted as analog signals at a full scale of 5V.  
Analog signal = (Measured data - reference value) x scale value (gain)  
In the basic setup the following conditions can be set.  
a) Whether the target value of GO/NG judgment is be copied to the reference value. If this  
is selected, the setup guidance for the reference value will not be displayed, so only the  
scale value must be set.  
b) It is also possible to set so that tolerance judgment and analog output can take place in  
the ready state.  
Analog output is automatically enabled if single-run measurement or continuous-run  
measurement is performed.  
If the reference value is being set the deviation value will be output for the RS-232C/GP-  
IB interface and the printer if single-run measurement or continuous-run measurement is  
performed.  
3 - 16  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3.2.12 Data output conditions  
In single-run measurement or continuous-run measurement, measured data can be output-  
ted for each measurement if NG occurs, or at given intervals to the RS-232C/GP-IB  
interface, printer, or Mitutoyo Digimatic Output Unit.  
RS-232C  
Data output condition  
GP-IB  
DCU  
Printer  
Remark  
0
1
2
3
The periodical output timer can be set  
The periodical output timer can be set  
4
5
6
7
8
9
The periodical output timer can be set  
RUN  
C.RUN  
key, etc., is pressed.  
: Outputted for each measurement if  
or  
RUN  
C.RUN  
: Press the  
: Press the  
or  
or  
key to trigger the measurement. The measured data will be outputted if it falls on GO.  
key to trigger the measurement. The measured data will be outputted if it falls on NG.  
RUN  
C.RUN  
: No output will be made.  
3.2.13 Automatic workpiece detection <Diameter detection method, Position detection  
method>  
Automatic workpiece detection is performed for continuous-run measurement, where  
measurement starts with no specified workpiece present (Err-0), then proceeds to auto-  
matic detection of the workpiece, followed by measurement repeated number of times. No  
specified workpiece present (Err-5) also refers to the workpiece outside the upper and  
lower detection limits.  
Whether automatic workpiece detection is performed is specified in the basic setup mode.  
If automatic workpiece detection is specified, the number of scanning times for detection  
must be specified from among 1 and 16. Select 16 times if detecting precision workpieces.  
If automatic workpiece detection is not specified, no further setting is necessary.  
Automatic workpiece detection setup includes the number of measurement times, invalida-  
tion period, upper and lower detection limits. Both the upper and lower detection limits  
may not always need to be specified, however, they should be set for safety.  
To exclude the measured data of such as chamfered portion of the workpiece, invalidation  
period can be set within the range from 0.001 sec to 9.999 sec.  
Invalidation  
elapses  
Measured the specified  
number to times  
Start of  
measurement  
No workpiece  
detected  
Detection of  
workpiece  
No. 99MBC071A  
3 - 17  
1) Diameter detection method  
This is used to automatically detect a workpiece that enters the laser scanning plane  
perpendicularly.  
For actual detection of a workpiece the displayed measurement (after calibration and  
offset) is used.  
One session of automatic detection consists of no workpiece being detected, detec-  
tion of a workpiece with a dimension that is within the detection range (between the  
upper and lower detection limits), an invalidation period required to exclude invalid  
dimensions (of chamfered portions, etc.) from the measurement, and effective  
measurement for the specified number of times. The final measurement result will be  
latched (held) on the display. Once entering the effective measurement the upper and  
lower detection limits will no longer be checked.  
The speed of workpiece detection (i.e. the number of scans) can be specified as  
either 1 or 16 in the basic setup.  
Use 16 times in the following cases:  
* If connecting bars are used between workpieces for feeding convenience and for  
setting appropriate intervals between workpieces, and, if the difference in the  
outside diameter between the workpiece and the bar is insufficient.  
* If the feed rate is low.  
The following diagram is an example where a workpiece with a chamfered outside  
diameter of D mm and a length of mm moves at a velocity of V mm/s.  
Scanning beam  
g
c
a
D
Workpiece flow  
V mm/s  
Setting example:  
Lower detection limit: L < (a +D) / 2  
Upper detection limit: H > Upper limit of the measuring range or 1.1 D  
(This setting may be omitted.)  
Invalidation period : T > (c / V) ms  
Number of measurements: N < ( - 2c) x 0.8 (safety factor) / measurement interval / V  
3 - 18  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
2) Position detection method  
This is used to automatically detect a workpiece that enters the measuring region in  
the laser scanning plane in the same direction of the scan.  
Workpiece detection is performed with one scan, and 16 scans can not be specified  
(If specified in the basic setup, the specification will be ignored).  
One session of automatic detection consists of the detection of no workpiece,  
detection of a workpiece edge with a dimension that falls within the detection range  
(between the upper and lower detection limits), an invalidation period required to  
exclude invalid dimensions from the measurement, and effective measurement for the  
specified number of times. Once the effective measurement has been entered, the  
upper and lower detection limits will no longer be checked.  
In the following diagram, workpiece positions (a) and (b) result in no workpiece  
being present, and in (c) it is judged that a workpiece is present.  
Detected edge  
(a)  
Lower detection limit: L  
Upper detection limit: H  
(b)  
C
(c)  
Vmm/S  
Setting example:  
Assuming the workpiece diameter as D (mm) and the moving speed as V (mm/s):  
Lower detection limit: L > (Laser scanning range - measuring region) / 2  
Upper detection limit: H < (Laser scanning range + measuring region ) / 2 - D (This  
setting may be omitted.)  
Invalidation period : Generally set to 0 ms.  
Number of measurements: N = 1  
NOTE Allow a sufficient margin for the lower detection limit, upper detection limit, invali-  
dation period, and number of measuring times when setting them. If this surplus is  
not sufficient, the measurement may not be achieved.  
If using the sample measurement, specify the number of measuring times to 1.  
The automatic workpiece detection functions in the continuous-run measurement.  
No. 99MBC071A  
3 - 19  
3.2.14 Group judgment  
While the tolerance judgment is applied to each measurement from a workpiece, this group  
judgment is applied to a group of the specified number of workpieces.  
Judgment to Group 1  
Judgment to Group 2  
5
Judgment to Group 3  
8
1
2
3
4
6
7
Individual  
judgment  
Individual  
judgment  
Individual  
judgment  
Individual  
judgment  
Individual  
judgment  
Individual  
judgment  
Individual  
judgment  
Individual  
judgment  
Output of individual  
judgment result  
Output of  
judgment  
result 1  
Output of  
judgment  
result 2  
Output of  
judgment  
result 3  
Output of  
judgment  
result 4  
Output of  
judgment  
result 5  
Output of  
judgment  
result 6  
Output of  
judgment  
result 7  
Output of group judgment result  
Output of  
judgment result 2  
Output of judgment result 1  
In the basic setup select whether group judgment is to be performed. If it is, then set the  
group size (the number of workpieces included in a group), calculation items (mean,  
maximum value, minimum value, and range), and group lower limit and upper limit. If  
Not performing group judgmentis selected, the setup guidance for it will not be dis-  
played.  
The group judgment will be in effect in a single-run measurement or continuous-run  
measurement.  
a) For the result display and GO/NG judgment indication each individual measurement  
and judgment result will be used.  
b) Output of judgment result  
1. If only the standard Analog I/O Interface is used  
Each individual judgment result will be outputted.  
2. If the second Analog I/O Interface is used  
Each individual judgment result will be outputted for A-(+NG), A-(GO), and A-(-  
NG), and the group judgment result will be outputted for B-(+NG), B-(GO), and B-(-  
NG), respectively.  
c) RS-232C/GP-IB output  
In the basic setup it is possible to set whether the group judgment result data is output-  
ted for the RS-232C/GP-IB interface. If it is, the output contents from the group  
judgment will be as follows:  
P0,  
P0,  
P0,  
( GO) 12.34567 ... Individual data  
( GO) 12.34560 ... Individual data  
(+NG) 12.34600 ... Individual data  
GP0, ( GO) 12.34575 ... Group judgment result data  
Each individual piece of measurement data can be the objective of statistical processing,  
however, group measurement data will be excluded from statistical processing.  
Even if Err-0(specified workpiece not present) occurs, the obtained data will not be  
cleared. To abort the measurement, press the  
key (or input RESET via the I/O  
C
Interface or the CLcommand via the RS-232C/GP-IB interface).  
3 - 20  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3.2.15 Recording the amount of light  
The gap measurement may be unstable if not enough laser beam passes through the gaps.  
In the case shown in diagram (a) below, an adequate amount of light can be obtained as  
the laser passes through gap (g) above the workpiece, even if the gap (t) is small. How-  
ever, in diagram (b) where gap (t) is small, measurement will be affected. In this case,  
therefore, it is necessary to have the system record the full amount of light when there is  
no obstruction (workpiece or fixture) in the optical path.  
Photo-electric signal  
g: Gap for the  
reference beam  
Laser beam  
passes through  
this gap.  
t
Light amount  
can be detected  
Workpiece  
Gap  
Peak of the  
photo-electric  
signal  
(a) Light amount can be detected normally = Auto-detecting  
Light amount  
cannot be detected  
(insufficient duration)  
t
Workpiece  
Gap  
(b) Recording the amount of light is required  
Normally the amount of incident light is continuously checked so that the counting  
operation can follow the change in the amount of incident light. To perform gap measure-  
ment with Measuring Unit LSM-902, gaps (g or t in the figure above) need to have 1mm  
or larger width. If the gap does not have enough gap, have the system record the light  
amount following 4.4, How to read-in the amount of light. It is also necessary to carry  
out this operation twice or three times each year since the light amount of the system may  
vary.  
No. 99MBC071A  
3 - 21  
3.3 Outline of the Display Contents  
Displays of this system are effected by the display unit and guidance LEDs.  
3.3.1 Display unit  
The name of each part of the display unit and the LEDs are given below:  
Data display unit (fluorescent display tube)  
PROG  
Upper display section  
Lower display section  
Measurement state guidance  
LOCK CAL OFFSET S.E  
DUAL  
GO +NG RUN BUSY  
-NG  
LASER EMISSION  
BUSY LED  
RUN LED  
GO/NG judgment LEDs  
LD oscillation LED  
W.P. (Work Position) LED  
3.3.2 Data display unit  
1) Numeric and character display  
Single measurement: Turns off.  
Simultaneous measurement:  
Displays a background program number.  
Displays a settting item in the single measurement.  
Single measurement: Displays a setup value.  
Simultaneous measurement:  
Displays the measured data of a background program.  
Displays the unit of measurement.  
Displays the measured  
data of a foreground program.  
Displays a foreground program number.  
2) Operation state guidance  
LOCK: Turns on in the key lock state, which is initiated by pressing both the  
SHIFT  
and  
/
keys. If these keys are input the key lock state will be  
LOCK UNIT  
canceled.  
Turns on if the calibration (HIGH CAL) is specified.  
OFFSET: Turns on if the offset function is active.  
S.E: Turns on if statistical processing is activated.  
DUAL: Turns on if simultaneous measurement is specified.  
CAL:  
3 - 22  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3) Display LED  
W.P. (Work Position) LED  
LED segments corresponding to a region shaded by the workpiece, which blocks the  
laser beam, will turn off. This is used to check if the workpiece is located in the center  
of the measuring region.  
LD oscillation LED  
LASER EMISSION : Indicates that the laser in the Measuring Unit connected to the  
TRANSMITTER-1connector is oscillating.  
GO/NG judgment LED  
1. -NG : Turns on if the measured data is -NG.  
2. GO : Turns on if the measured data is GO.  
3. +NG : Turns on if the measured data is +NG.  
RUN LED  
Turns on if a single-run measurement, continuous-run measurement or continuous-run  
measurement with a term specification is performed.  
BUSY LED  
Turns on each time the measured data is updated.  
IMPORTANT Laser safety  
For safety, the laser will not turn on until 5 seconds after the power is turned on. If  
the power is unintentionally turned on, turn off the power within 5 seconds to secure  
the laser.  
No. 99MBC071A  
3 - 23  
3.4 Outline of Key Operations  
On this system operate the keys as follows.  
The  
/
key, for example, has two functions as  
PROG  
STAT S.E  
indicated on the upper and lower portions of the key  
top. The function on the upper portion can be activated  
by simply pressing the key, and the one on the lower  
portion can be activated by pressing the key while  
holding down the  
key. If the  
key is  
SHIFT  
SHIFT  
pressed, the currently displayed program number flashes  
for about 10 seconds until another key is pressed.  
During this period one of the functions in the upper  
portions of the keys can be selected. Press the  
/
STAT  
key while the program number is flashing.  
S.E  
To enter the reference gage values, such as HIGH CAL, LOW CAL and offset, or other  
setup values such as reference values and GO/NG judgment criteria, etc., the numeric keys  
(
to  
,
,
) and arrow keys (  
,
,
and  
) can be  
.
+/-  
0
9
used.  
a) If a setup value entry is started with a numeric key and an arrow key is pressed halfway,  
an operation error will result. The following example shows a case of an offset value.  
1. Enter the setup mode of the offset function.  
The least significant digit of the existing offset value  
is flashing.  
PROG  
2. Change the value to 12.00 mm.  
PROG  
PROG  
Press the  
key.  
1
3. If an arrow key is pressed at this point, an operation  
error occurs, however the display does not change.  
4. To enable the entry of an arrow key, press the  
PROG  
C
key to cancel the setup value.  
Now the arrow keys are operable.  
b) If a measurement is read as the setup data by pressing the  
key or if the entry of a  
READ  
setup value is started with an arrow key and a numeric key is pressed halfway an operation  
error will result. See the example above.  
1. Enter the setup mode of the offset function.  
The least significant digit of the existing offset value  
flashes.  
PROG  
PROG  
PROG  
PROG  
2. Enter the  
key.  
3. If a numeric key is pressed at this point, an operation  
error occurs, however the display does not change.  
4. To enable the entry of a numeric key, press the  
key to cancel the setup value.  
Now the numeric keys are operable.  
C
3 - 24  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3.4.1 Description of key functions  
Key name  
In the ready state  
At single-run measurement  
At setup  
In the display-latched state  
At continuous-run measurement  
Combined use with power-on  
operation  
Changes the program number  
Operation error  
Operation error  
Enters the setup data.  
0
9
Operation error  
Enters a decimal point.  
Operation error  
Operation error  
Inverts the sign of the setup value.  
+/-  
Aborts the measurement and  
returns to the ready state.  
Cancels the setup value or resets  
it to initial value.  
Cancels the error state.  
Cancels the error that occurred  
when the power was turned on.  
Cancels the latched state and  
returns to the ready state.  
C
C
+ power-on will enter the  
initialization mode of the Display  
Unit.  
Shift key  
Operation error  
READ  
Entry of SHIFT  
+
To enter the function indicated in  
the upper portion of a double-  
function key, such as the  
STAT  
(to set the light amount detecting  
function) is valid when the function  
setup item number flashes in the  
function setup mode.  
SHIFT  
SHIFT  
key, hold down the  
S.E  
before pressing the key.  
A foreground program number will  
flash for about 10 seconds.  
Performs single-run measurement  
(even in the display-latched state).  
Results in a single-run  
measurement error.  
Quits the measuring operation for  
continuous-run measurement.  
Operation error  
Operation error  
Operation error  
RUN  
Starts continuous-run measurement Quits the measuring operation for  
(even in the display-latched state).  
continuous-run measurement  
C.RUN  
RUN  
(same as  
).  
Prints out the previous  
measurement data.  
Results in a single-run  
measurement error.  
S.PR  
PRINT  
Prints out the data currently  
displayed in the display-latched  
state.  
Prints out the previous  
measurement data in  
continuous-run measurement.  
If the printer is active, prints out all Operation error  
the statistical processing data and  
clears the statistical memory.  
If the printer is not active, results in  
an operation error.  
Operation error  
S.PR  
PRINT  
SHIFT  
No. 99MBC071A  
3 - 25  
Key name  
In the ready state  
At single-run measurement  
At setup  
In the display-latched state  
At continuous-run measurement  
Combined use with power-on  
operation  
Enters the function setup mode.  
Operation error  
Operation error  
Operation error  
Exits from the function setup mode  
and returns to the ready state.  
Enters the state that is entered just  
after the power is turned on, if in  
the basic setup mode.  
SET  
+ power-on is used to enter  
SET  
the basic setup mode.  
Directly enters the setup mode for  
GO/NG judgment.  
ENT  
Press  
to complete the setup  
operation and return to the ready  
state.  
LIMIT  
LIMIT  
SET  
Press  
or  
to abort the  
setup operation and return to the  
ready state.  
Performs zero-setting (in the  
positive direction) if an offset value  
is not set.  
Operation error  
If an offset value is set, executes  
the offset function with the offset  
value being set.  
MASTER  
OFFSET  
Update of the setup data for the  
offset function must be performed  
in the function setup mode.  
Operation error  
Operation error  
Operation error  
Directly enters the setup for  
mastering.  
If no offset value is set, an error  
results.  
Press ENT to complete the setup  
operation and return to the ready  
state.  
MASTER  
OFFSET  
SHIFT  
MASTER  
OFFSET  
SET  
Press  
or  
to abort the setup operation and  
return to the ready state.  
Directly enters the setup operation  
for the reference value and scale  
value.  
If "Copying the target value to the  
reference value" is specified in the  
basic setup, only the setup  
operation for the scale value takes  
place.  
Press ENT to complete the setup  
operation and return to the ready  
state.  
REF  
ENT  
SET  
Press REF or  
to abort the  
setup operation and return to the  
ready state.  
Operation error  
Accepts the setup data that is  
pressed.  
3 - 26  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
Key name  
In the ready state  
At single-run measurement  
At setup  
In the display-latched state  
At continuous-run measurement  
Combined use with power-on  
operation  
Enables/disables statistical  
processing.  
If statistical processing is active,  
measurement state guidance (  
Operation error  
Operation error  
STAT  
S.E  
)
for statistical processing turns on.  
Enters the statistic display mode  
and displays N in the statistical  
memory.  
Operation error  
Operation error  
Each time the ENT key is  
STAT  
S.E  
SHIFT  
pressed S.D, MAX, MIN, AVG,  
R, and N are sequentially displayed.  
STAT  
S.E  
Press  
or  
to  
SET  
restore the ready state.  
Enters the clear mode of the  
statistical memory for the specified  
program number.  
Operation error  
Operation error  
Operation error  
Operation error  
ENT  
Press  
to execute clear, and  
A.CL  
M.CL  
A.CL  
M.CL  
SET  
pressing  
or  
to abort the  
clearing operation and return to the  
ready state.  
Operation error  
Enters the clear mode of the  
statistical memory for all program  
numbers.  
ENT  
Press  
to execute clear, and  
A.CL  
M.CL  
SHIFT  
A.CL  
M.CL  
SET  
press  
or  
to abort the  
clearing operation and return to the  
ready state.  
Enters the unit change mode.  
Operation error  
ENT  
Press  
to execute a change of  
LOCK  
UNIT  
LOCK  
SET  
units, and press  
or  
UNIT  
to abort the unit change operation  
and returns to the ready state.  
Enters the key lock mode, turns on Operation error  
the measurement state guidance  
Operation error  
( ) for the key lock function, then  
prohibits subsequent key inputs.  
If these keys are pressed again in the  
key lock state, it will be canceled.  
LOCK  
UNIT  
SHIFT  
No. 99MBC071A  
3 - 27  
Key name  
In the ready state  
At single-run measurement  
At setup  
In the display-latched state  
At continuous-run measurement  
Combined use with power-on  
¥ operation  
Enters the HIGH CAL setup mode.  
Operation error  
ENT  
(Input of gage diameter) +  
¥ executes HIGH CAL and illuminates  
¥ the measurement state guidance (  
)
¥ for CAL.  
H.CAL  
H.CAL  
SET  
Press  
or  
in the HIGH CAL  
¥ setup mode to abort the setup  
¥ operation and return to the ready  
¥ state.  
Enters the LOW CAL setup mode.  
Operation error  
(Input of gage diameter) + ENT  
¥ executes LOW CAL.  
L.CAL  
SET  
Press  
or  
in the  
L.CAL  
¥ LOW CAL setup mode to abort the  
¥ setup operation and return to the  
¥ ready state.  
Operation error  
Operation error  
Operation error  
Operation error  
Reads the measurement of the  
¥ reference gage as the setup value.  
The read value can be modified with  
¥
READ  
the  
,
,
,
¥
and  
keys.  
If this entry is made when the  
Enters the detection mode of the  
¥ measurement position  
¥ (focal position).  
¥ function setup item number is  
¥ flashing in the function setup mode,  
¥ which was accessed by the  
READ  
SHIFT  
READ  
SET  
Press  
or  
to restore the  
SET  
key, the setup operation for  
¥ ready state.  
¥ the light amount detection is entered.  
This is used to enter the setup mode  
¥ for the setup item that is being  
¥ displayed in the upper section of the  
¥ display unit.  
Move left key  
Operation error  
Operation error  
Operation error  
Operation error  
Operation error  
Operation error  
Move right key  
Up key to increment the setup value.  
Down key to decrement the setup  
¥ value.  
3 - 28  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
3.4.2 Example key operations  
As an example operation this section uses an update of the tolerance limits which are  
displayed in the upper display section while in the ready state. Suppose that the new lower  
tolerance limit is 12.34500and the upper tolerance limit is 12.34600and that the current  
values are 12.00000and 12.00100.  
In the example below, we start with canceling existing upper and lower tolerance limits since  
the lower tolerance limit to be set is smaller than the existing upper tolerance limit. If this is  
the case, setting the lower tolerance limit first causes an error (ERR-5).  
Step 1: In the ready state press the  
key to make  
PROG  
the setup item being displayed flash in the upper  
display section.  
Each time the  
key is pressed, while the setup item is flashing, the setup item  
will change sequentially: Segment  
Measurement interval  
Offset  
Lower limit value  
Upper limit value  
Reference value  
Offset  
Mastering  
If the  
key is pressed, the setup item will change in the reverse order.  
As the displayed setup items vary with the results of the basic setup, refer to Section  
5.1.1, Settings made in the measurement mode”  
Step 2: If the upper limit value is going to be canceled,  
PROG  
make the  
guidance flash.  
Step 3: Press either the  
or  
key to make the  
PROG  
PROG  
PROG  
PROG  
ENT  
least significant digit of the setup data flash.  
Step 4: To cancel the upper limit value press the  
C
key to set the setup data to 0.  
Step 5: If the  
key is pressed, the upper limit value  
ENT  
is canceled and system operation returns to the  
ready state.  
Step 6: After making the  
the key, press the  
enter the setup mode for the lower limit value.  
guidance flash by pressing  
and keys to  
ENT  
Step 7: Press the  
key to set the display of the lower  
PROG  
C
limit value to 0(can be omitted), then enter a  
new lower limit value of 12.34500.  
No. 99MBC071A  
3 - 29  
1) Each time the numeric key is pressed  
the corresponding digit will be  
PROG  
PROG  
PROG  
PROG  
1
2
.
placed in the position of the least  
significant digit, as shown in the  
figure on the right. In this example  
insignificant zeros (  
) are  
0
0
not entered, they will be automati-  
cally added to fill the remaining digit  
places when the  
pressed.  
key is  
ENT  
3
PROG  
PROG  
5
4
2) Press the  
key to save the setup  
ENT  
data of the lower limit value, and  
return to the ready state.  
ENT  
If Inserting a comma (,) after the  
thousandth digitis specified in the  
basic setup, it will be automatically  
inserted when the  
pressed.  
key is  
ENT  
Step 8: As in steps 6 and 7, enter a new upper limit value.  
PROG  
PROG  
Step 9: If the  
key is pressed, the setup data of the  
ENT  
upper limit value is saved in memory, then  
operation returns to the ready state.  
Step 10:Here, for practice, intentionally enter the incorrect  
PROG  
upper limit value of 12.34800then correct it.  
Step 11:Enter the setup mode for the upper limit value  
again.  
PROG  
PROG  
PROG  
PROG  
1) Press the  
digit flash.  
key twice to make the third  
key twice to change the third  
key to save the setup data. The  
2) Press the  
digit to 6.  
3) Press the  
ENT  
operation will be automatically return to the  
ready state.  
3 - 30  
No. 99MBC071A  
3. DISPLAYS AND KEY OPERATIONS  
The following describes how to use the arrow keys using step 7 as an example.  
1) Now, the setup data of 0is displayed as a  
result of having pressed the key.  
PROG  
C
2) If the  
key is pressed, the digit places are  
PROG  
automatically filled with zeros to reflect the set  
resolution, with the appropriate number of  
commas inserted after the thousandth digit, then  
the highlighted digit moves one position to the  
left.  
If the  
key is pressed, the digit places are  
PROG  
PROG  
automatically filled with zeros to reflect the set  
resolution, with the appropriate number of  
commas inserted after the thousandth digit, then  
the least significant digit increases by one.  
If the  
key is pressed, the digit places are  
automatically filled with zeros to reflect the set  
resolution, with the appropriate number of  
commas inserted after the thousandth digit, then  
the least significant digit decreases by one,  
resulting in a negative value.  
If the  
key is pressed, the digit places are  
PROG  
automatically filled with zeros to reflect the set  
resolution, with the appropriate number of  
commas inserted after the thousandth digit, then  
the most significant digit that can be set starts  
flashing.  
Here, for practice, press the  
key.  
3) Press the key twice to move the digit to  
PROG  
PROG  
PROG  
PROG  
PROG  
be set to the third digit place, then press the  
key five times.  
4) Press the  
key to move the digit to be set  
to the forth digit place, then press the  
key four times.  
5) Press the  
key to move the target digit to  
be set to the fifth digit, then press the  
key three times.  
6) Press the  
key to move the digit to be set  
to the sixth digit place, then press the  
key twice.  
7) Press the  
key to move the target digit to  
be set to the seventh digit place, then press the  
key.  
No. 99MBC071A  
3 - 31  
8) Press the  
memory.  
key to save the setup value in  
PROG  
ENT  
IMPORTANT Rounding setup value  
Setup value will be rounded off automatically if its least significant digit does not  
agree with the resolution of the display.  
Example: In case the resolution is 0.05 µm  
12.345,64 > 12.345,60 (least significant digit 4 is rounded off to 0)  
12.345,67 > 12.345,65 (least significant digit 7 is rounded off to 5)  
TIP About the input of setup data  
1. How to enter a sign  
PROG  
If Perform GO/NG judgment by (target value +  
tolerance)has been specified in the basic setup  
and the lower tolerance limit is -0.015, input as  
follows. In this case a 0does not need to be  
placed in the integer section.  
PROG  
PROG  
(
)
.
0
0
1
5
+/-  
2.  
key: About the read operation  
READ  
Generally, in the calibration or offset value setup operation a reference gage is  
used, resulting in a measured data that is very close to the setup value. If this is  
the case, first read a measurement as the setup data, then correct the minor  
difference.  
3. To enter a numeric value such as a gage diameter, it is more convenient to use  
the numeric keys. To correct a specific digit, it is more convenient to use the  
arrow keys.  
4. To select a setup item such as the resolution in the basic setup, it is better to use  
the  
or  
key. Use of a numeric key causes an operation error.  
3 - 32  
No. 99MBC071A  
SETTING UP THE  
MEASURING CONDITIONS  
Set up the various functions as required to customize the system for the  
utmost measurement accuracy.  
4
4.1 Basic Setup  
• In the basic setup mode select and modify the appropriate functions to meet your measur-  
ing purpose. It is not necessary to set up functions which will not be used.  
• The basic setup should be performed at the beginning of operation.  
Modification of the basic setup after calibration or function setup has been made may  
result in the cancellation of the calibration or function setup values.  
• RS-232C/GP-IB commands and input from the (Second) Analog I/O Interface can not be  
accepted in the basic setup mode.  
No. 99MBC071A  
4- 1  
4.1.1 Outline of the basic setup procedure  
SET  
Basic setup mode (can be entered by pressing the  
key + Power ON)  
Mode No.  
B0  
Setup contents  
a. Setting the resolution  
b. Setting the number of blanked out (display-off) digits  
c. Setting whether a comma (",") is inserted after the thousandth digit  
d. Setting the buzzer function  
e. Setting the period of the display latch timer  
B1  
a. Setting whether to perform GO/NG judgment result output and analog output in the ready state  
b. Setting the analog output voltage if Err-0 occurs  
c. Setting the display message if Err-0 occurs  
d. Setting the display message at the start of measurement  
e. Setting the averaging method  
f. Setting the GO/NG judgment method  
g. Setting whether the target value is copied to the reference value  
a. Setting the workpiece type (opaque or transparent)  
b. Setting the simultaneous measurement  
B2  
B3  
c. Setting the method of specifying segments  
a. Setting the abnormal value elimination function  
b. Setting the automatic workpiece detection function  
c. Setting the number of scans  
d. Setting the group judgment  
e. Setting the output function to the RS-232C/GP-IB interface  
B4  
a. Setting the use of the RS-232C port  
b. Setting the RS-232C communication baud rate  
c. Setting the RS-232C communication data bits  
d. Setting the RS-232C communication parity bit  
e. Setting the delimiter for communication  
f. Setting the RS-232C line control  
B5  
B6  
a. Setting the RUN input function from the I/O interface  
b. Setting the OFFS input function from the I/O interface  
c. Setting the GO output function from the I/O interface  
a. Setting the use of DCU  
Ready state  
4 - 2  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
4.1.2 Description of each mode  
1. Data display unit  
If the basic setup mode is entered, the following display appears.  
The basic setup number “ ” will be flashing in the most significant digit of the upper  
display section, and the guidance for the setup item, followed by the setup value, will be  
shown at the right of the setup number.  
In the lower display section “  
will be displayed.  
Basic setup number: 1 digit  
Setup item guidance: 3 to 8 digits  
Setup data: 1 to 7 digits  
Unit: 2 digits  
PROG  
The set display of "BASIC PRG"  
2. Selecting the basic setup number  
Each time the  
key is pressed when the basic setup number is flashing the  
function setup number digit changes as follows:  
. To enter the desired setup mode press the  
key when its setup number is  
ENT  
flashing. If the  
If a key other than  
key is pressed, the setup mode will change in reverse order.  
, or is pressed during the selection of a  
,
,
ENT  
SET  
basic setup number an operation error will result.  
When each piece of setup data is accepted with the  
key in the corresponding  
ENT  
setup mode, the operation will automatically proceed to the next setup item.  
3. Setting each setup item  
Except for setting up the display latch timer, select the setup item using the  
or  
key and accept the setup specification by pressing the  
key. When the setup  
ENT  
content is accepted, the operation will automatically proceed to the next setup item. In  
setting the display latch timer, it is better to use the numeric keys rather than the arrow  
keys, which, however, are valid.  
4. Confirming the setup contents of each setup item  
To confirm the setup specification of each setup item use only the  
not affect the setup specifications.  
key, which does  
ENT  
5. Terminating the basic setup mode  
If the  
key is pressed while the basic setup number is flashing, the setup contents  
SET  
modified in this session will be saved, and the system will restore the state that is  
entered just after the power is turned on.  
If the  
key is pressed in the setup mode of each setup item, the operation returns  
SET  
to the selection of a basic setup number. If the  
key is pressed again at this point ,  
SET  
the setup contents modified in this session will be saved, and the system will restore the  
state that is entered just after the power is turned on.  
If the power is turned off halfway the setup operation, setup specifications made will  
not be saved. If this is the case, setup should be repeated from the beginning.  
No. 99MBC071A  
4 - 3  
4.1.2.1 Selecting and setting the function in the B0 mode.  
a. Setting the resolution (Guidance:  
)
Set the resolution of the Measuring Unit. The resolutions that can be set for the Measuring  
Units are given in Table 4.5.2.1Aand Table 4.5.2.1B.  
Step 1: Each time the  
key is pressed the displayed  
PROG  
setup option (number) changes in the following  
order:  
... →  
ENT  
. If the  
key. If  
desired option is flashing, press the  
the resolution setting has been made, the operation  
automatically proceeds to the setting for the  
number of blanked out digits.  
The initial setup option is set to  
.
1. Resolution using the metric system (Unit: µm) Table 4.5.2.1A  
Model name  
0
1
2
3
4
5
6
7
7
LSM-902  
0.01  
0.02  
0.05  
0.1  
0.2  
0.5  
1
10  
2. Resolution using the inch system (Unit: inch)  
Table 4.5.2.1B  
Model name  
0
1
2
3
4
5
6
LSM-902  
.000001 .000001 .000002 .000005 .00001  
.00002  
.00005  
.0005  
Note 1 : The shaded figures show the default setting of each Measuring Unit  
Note 2 : Resolutions in the columns of 0show those which can be obtained from 32 scans.  
Resolutions in the columns with 1show those which can be obtained from 16 scans.  
Note 3 : If the number of scans are set between 1 to 8, the least significant digit of a measurement  
will be automatically blanked out where resolution is set to No.0, 1, or 2.  
Note 4 : Note that setting a too large resolution may often reduce the measuring accuracy.  
Where the displayed digits are closely intact and difficult to see, set the number of  
blank-out digits or mark the thousandth digit function in the basic setup mode: b0.  
IMPORTANT Changing the resolution will cancel all the calibration values (HIGH CAL and LOW  
CAL), offset value, mastering, abnormal value eliminating limits, GO/NG judgment  
criteria, reference value, and setup values for the automatic workpiece detection.  
Therefore, changing of the resolution should be carried out first.  
4 - 4  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
b. Setting the number of blank-out digits (Guidance:  
)
Here, set the number of blank-out digits for measurements to be displayed in the display  
unit. This blank out does not apply to the output to BCD interface, RS-232C/GP-IB  
interface, printer, Digimatic output unit, and the display of setup value.  
: No blank out (all digits are displayed)  
: The least significant digit is blanked out.  
: The least significant two digits are blanked out.  
(Default setting is .)  
Step 1: Each time the  
key is pressed the displayed  
PROG  
figure changes in ascending order:  
.
While the figure to be set is flashing, press the  
key.  
ENT  
After accepting the specified value, the display proceeds to the setup stage of the  
next item.  
c. Putting a comma after the thousandths digit (Guidance:  
)
Set whether a comma ( ,) is inserted after the thousandths digit.  
: Not displayed  
: Displayed  
(Default setting is  
.)  
Step 1: Each time the  
string toggles between  
Select the setting and press the  
key is pressed the displayed  
PROG  
and  
.
key.  
ENT  
After accepting the specified digit position, the  
display proceeds to the setting the buzzer function.  
No. 99MBC071A  
4 - 5  
d. Setting the buzzer function (Guidance:  
)
Set whether or not to enable (key input sensing sound and key entry error sound) and  
( NG judgment sound). Note that the system error sounds (indicating that the printer or  
Digimatic Output Unit is not connected, or other system failures) are not disabled with this  
setting.  
The types of buzzer sound are as follows:  
1. Key input sensing sound: very short beep (0.05 sec)  
2. Key entry error sound: short beep (0.2 sec)  
3. NG judgment sound: long beep (1 sec)  
4. System error sound: repeated short beeps at intervals of 0.2 seconds  
: Sounds a buzzer in all cases.  
: Enables the key input sensing sound + key entry error sound  
: Sounds a buzzer when the judgment result is NG  
: Sounds a buzzer only if a system error occurs  
(Default setting:  
)
Step 1: Each time the  
setup option changes in the following order:  
. If the  
key.  
key is pressed the displayed  
PROG  
desired option is flashing, press the  
ENT  
When the setup for the buzzer function is com-  
pleted, operation automatically proceeds to the  
setting of the display latch timer.  
e. Setting the display latch timer (Guidance:  
)
Set the period the measurement result display is to be latched (held) on the display if a  
single-run measurement or continuous-run measurement is performed. Specify a value  
between 0 and 99 seconds. 0seconds specifies an infinite (latch state not canceled).  
(Default setting: 10 seconds)  
Step 1: This is an example of the display latch timer being  
set to 15 seconds.  
PROG  
Enter  
and  
in this order.  
1
5
PROG  
PROG  
PROG  
1
5
Step 2: Press the  
key to save the setup data in  
ENT  
ENT  
memory.  
The operation automatically proceeds to B1:  
Setting the output function in the ready state.  
4 - 6  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
4.1.2.2 Selecting and setting the function in the B1 mode.  
a. Setting the output function in the ready state (Guidance:  
)
Set whether to perform GO/NG judgment result output and analog output in the ready  
state.  
: Neither kind of output is performed in the ready state.  
: Both kinds of output are performed, even in the ready state.  
(Default setting:  
)
Step 1: Each time the  
setup option toggles between  
While the desired setup option is flashing, press  
the key. When the setup for this function  
key is pressed the displayed  
PROG  
and  
.
ENT  
has been completed, the operation automatically  
proceeds to the setting for the analog output  
voltage in the event of Err-0.  
b. Setting the analog output voltage if Err-0 occurs (Guidance:  
)
Set the analog output voltage in the event of Err-0 (specified workpiece not present).  
: Output voltage 0V  
: Output voltage +5V  
: Output voltage -5V  
(Default setting:  
V)  
Step 1: Each time the  
key is pressed the displayed  
PROG  
setup option changes in the following order:  
. While the desired setup option is  
flashing, press the key. When the setup for  
ENT  
this function has been completed, the operation  
automatically proceeds to the selection of the  
display message for Err-0.  
c. Selecting the display message if Err-0 occurs (Guidance:  
: Displays “ ”.  
: Displays “ ” as the least significant digit.  
(Default setting:  
)
)
Step 1: Each time the  
setup option toggles between  
While the desired setup option is flashing, press  
the key. The operation automatically  
key is pressed the displayed  
PROG  
and  
.
ENT  
proceeds to the selection of the display message at  
the start of measurement.  
No. 99MBC071A  
4 - 7  
d. Selecting the display message at the start of measurement (Guidance:  
)
Set the message to be displayed at the start of a single-run measurement or continuous-run  
measurement.  
: Displays “  
: Continuously displays the previous data.  
(Default setting:  
.  
)
Step 1: Each time the  
setup option toggles between  
. While the desired setup option is  
flashing, press the key. The operation  
key is pressed the displayed  
PROG  
and  
ENT  
automatically proceeds to the selection of the  
averaging method.  
e. Selecting the averaging method (Guidance:  
)
Select one of the following averaging methods: arithmetical average and moving average.  
: Arithmetical average  
: Moving average  
(Default setting:  
)
Step 1: Each time the  
key is pressed the displayed  
PROG  
setup option toggles between  
and  
. While the desired setup option is  
flashing, press the  
key. The operation  
ENT  
automatically proceeds to the selection of the GO/  
NG judgment method.  
f. Setting the GO/NG judgment method (Guidance:  
)
Select one of the following GO/NG judgment methods: (lower limit value and upper limit  
value), (multi-limit selection: 7 stages), and (target value + tolerance).  
: GO/NG judgment is performed according to the specified lower limit and  
upper limit.  
: GO/NG judgment is performed according to the multi-limit selection (7  
stages).  
: GO/NG judgment is performed according to the specified target value and  
tolerance.  
(Default setting:  
)
Step 1: Each time the  
setup option changes in the following order:  
. While  
the desired setup option is flashing, press the  
key. If is selected, operation  
proceeds to setting whether the target value is  
key is pressed the displayed  
PROG  
ENT  
copied to the reference value. If  
selected, operation proceeds to B2: Setting the  
workpiece type.  
is not  
4 - 8  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
g. Setting whether the target value is copied to the reference value (Guidance:  
Set whether the target value is automatically copied to the reference value.  
: Target value is not copied to the reference value.  
)
: Target value is copied to the reference value.  
(Default setting:  
)
Step 1: Each time  
key is pressed the displayed  
PROG  
setup option toggles between  
and  
. While the desired setup option is  
flashing press  
key. The operation automati-  
ENT  
cally proceeds to setting B2: Setting the  
workpiece type.  
No. 99MBC071A  
4 - 9  
4.1.2.3 Selecting and setting the function in the B2 mode  
a. Setting the workpiece type (Guidance:  
)
Set whether the workpiece is an opaque object or transparent object.  
: Workpiece is an opaque object.  
: Workpiece is a transparent object.  
(Default setting:  
)
Step 1: Each time the  
setup option toggles between  
. While the desired setup option is  
flashing, press the key. The operation  
key is pressed the displayed  
PROG  
and  
ENT  
automatically proceeds to the setting of simulta-  
neous measurement.  
TIP If  
is selected for the workpiece type, the guidance for the selection of the  
segment specification method is not displayed. It is omitted (the segment specifica-  
tion process is entered directly).  
b. Setting the simultaneous measurement (Guidance:  
)
Set whether to perform simultaneous measurement.  
: Does not perform simultaneous measurement. (performs single measure-  
ment)  
: Performs simultaneous measurement.  
(Default setting:  
)
Step 1: Each time the  
setup option toggles between  
While the desired setup option is  
key is pressed the displayed  
PROG  
and  
flashing, press the  
key. Operation automati-  
ENT  
cally proceeds to setting the method of specifying  
segments.  
TIP If  
(simultaneous measurement) is selected  
If simultaneous measurement is selected, the setup guidance for the following will  
not be displayed: Selecting the averaging method, segment specification, and setting  
the group judgment.  
4 - 10  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
c. Selecting the method of specifying segments (Guidance:  
)
Select the method of specifying the measurement position from segment specification and  
edge specification.  
: Uses segment specification.  
: Uses edge specification.  
(Default setting:  
)
Step 1: Each time the  
setup option toggles between  
. While the desired setup option is  
flashing, press the key. The operation  
key is pressed the displayed  
PROG  
and  
ENT  
automatically enters B3: Setting the abnormal  
value elimination function.  
NOTE If any of the following setting is performed, the system automatically proceeds to the  
stage of segment setup  
without displaying the guidance for the  
method of specifying segments SEG:  
a.  
is selected in Setting the workpiece type.  
No. 99MBC071A  
4 - 11  
4.1.2.4 Selecting and setting the function in the B3 mode  
a. Setting the abnormal value elimination function (Guidance:  
)
Set whether to use the abnormal value elimination function.  
: Does not use the abnormal value elimination function.  
: Uses the abnormal value elimination function.  
(Default setting:  
)
Step 1: Each time the  
setup option toggles between  
While the desired setup option is flashing, press  
the key. The operation automatically enters  
key is pressed the displayed  
PROG  
and  
.
ENT  
the process for setting the automatic workpiece  
detecting function.  
b. Setting the automatic workpiece detecting function (Guidance:  
)
Set whether to use the automatic workpiece detecting function.  
: Does not use the automatic workpiece detecting function.  
: Performs automatic workpiece detection with the diameter detection  
method.  
: Performs automatic workpiece detection with the position detection  
method.  
(Default setting:  
)
Step 1: Each time the  
setup option changes in the following order:  
. While the  
desired setup option is flashing, press the  
key is pressed the displayed  
PROG  
ENT  
key. If  
(the automatic workpiece  
detecting function is not used) is selected, the  
operation proceeds to setting the group judgment,  
otherwise it enters the process for setting the  
number of scans.  
c. Setting the number of scans (Guidance:  
)
Set the number of scans that are used for the automatic workpiece detecting function.  
: Detection from 16 scans  
: Detection from a single scan  
(Default setting:  
)
Step 1: Each time the  
key is pressed the displayed  
PROG  
setup option toggles between  
the desired setup option is flashing, press the  
key. The operation automatically enters the  
and . While  
ENT  
process for setting the group judgment.  
NOTE Even if 16 scans are specified in the position detection method, the actual detecting  
operation will be performed with a single scan.  
4 - 12  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
d. Setting the group judgment (Guidance:  
Set whether to use the group judgment function.  
)
: Does not use the group judgment function.  
: Uses the group judgment function.  
(Default setting:  
)
Step 1: Each time the  
setup option toggles between  
While the desired setup option is flashing, press  
the key. If is selected, the opera-  
tion proceeds to B4: Setting the use of RS-232C  
baud rate, and if is selected, the operation  
key is pressed the displayed  
PROG  
and  
.
ENT  
enters the process for setting the group judgment  
result output function.  
e. Setting the group judgement output (Guidance:  
)
Set whether to output the group judgment result to the RS-232C/GP-IB interface.  
: Does not output the group judgment result to the RS-232C/GP-IB interface.  
: Outputs the group judgment result to the RS-232C/GP-IB interface.  
(Default setting:  
)
Step 1: Each time the  
setup option toggles between  
While the desired setup option is flashing, press  
the key. The operation automatically  
key is pressed the displayed  
PROG  
and  
.
ENT  
proceeds to B4: Setting the use of RS-232C port.  
No. 99MBC071A  
4 - 13  
4.1.2.5 Selecting and setting the function in the B4 mode  
a. Setting the use of RS-232C port (Guidance:  
)
Set if the RS-232C port is used as the communication port (COM) for a personal com-  
puter, etc., or as the printer port, or is not used for either.  
Except for use as the communication port (COM), the GP-IB interface can take the place  
of the RS-232C.  
: Used as the communication port (COM) for a personal computer, etc.  
: Used as the printer port (GP-IB can be used)  
: Is not used for either purpose (GP-IB can be used)  
(Default setting:  
)
Step 1: Each time the  
setup option changes in the following order:  
. While the desired  
setup option is flashing, press the key. If  
key is pressed the displayed  
PROG  
ENT  
is selected, the operation proceeds to B5:  
Setting the RUN input function from the I/O  
interface, otherwise it enters the process for  
setting the RS-232C communication speed.  
b. Setting the RS-232C communication baud rate (Guidance:  
)
Set the RS-232C communication speed (baud rate).  
: Uses 9600 bps.  
: Uses 19200 bps.  
: Uses 1200 bps.  
: Uses 2400 bps.  
: Uses 4800 bps.  
(Default setting:  
)
Step 1: Each time the  
key is pressed the displayed  
PROG  
setup option changes in the following order:  
. While the desired setup option is  
flashing, press the key. The operation  
ENT  
automatically enters the process for setting the  
RS-232C data bits.  
c. Setting the RS-232C communication data bits (Guidance:  
Set the data bits for RS-232C communication.  
: Uses 8 bits.  
)
: Uses 7 bits.  
(Default setting:  
)
Step 1: Each time the  
key is pressed the displayed  
and  
While the desired setup option is flashing, press  
the key. The operation automatically enters  
PROG  
setup option toggles between  
.
ENT  
the process for setting the parity check method for  
RS-232C communication.  
4 - 14  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
d. Setting the RS-232C communication parity bit (Guidance:  
)
Set the parity check method for RS-232C communication.  
: Does not use parity check.  
: Uses odd parity.  
: Uses even parity.  
(Default setting:  
)
Step 1: Each time the  
setup option changes in the following order:  
. While the  
desired setup option is flashing, press the  
key is pressed the displayed  
PROG  
ENT  
key. The operation automatically enters the  
process for setting the delimiter for RS-232C  
communication .  
e. Setting the delimiter for communication (Guidance  
)
Set the delimiter (termination code of one sentence) for RS-232C communication.  
: Uses CR+LF as the delimiter.  
: Uses CR code as the delimiter.  
: Uses LF code as the delimiter.  
(Default setting:  
)
Step 1: Each time the  
setup option changes in the following order:  
. While the desired  
setup option is flashing, press the key. The  
key is pressed the displayed  
PROG  
ENT  
operation automatically enters the process for  
setting the control method of the RS-232C  
communication flow.  
f. Setting the RS-232C line control (Guidance:  
)
Set the method of controlling the RS-232C communication flow.  
: Does not use a particular control signal (using 3-wire teletype control).  
: Uses a control signal.  
(Default setting:  
Note: If the RS-232C interface is set as the printer port, line control will be  
achieved by BUSY signals even if this option was set to  
)
.
Step 1: Each time the  
setup option toggles between  
While the desired setup option is flashing, press  
the key. The operation automatically  
key is pressed the displayed  
PROG  
and  
.
ENT  
proceeds to B5: Setting the RUN input function  
from the I/O interface.  
No. 99MBC071A  
4 - 15  
4.1.2.6 Selecting and setting the function in the B5 mode  
a. Setting the RUN input function from the I/O interface (Guidance:  
)
Set if the RUN input from the I/O interface is used to trigger single-run measurement,  
continuous-run measurement with a term specification, or continuous-run measurement. If  
the function is used for triggering continuous-run measurement with a term specification,  
RUN input from the Second Analog I/O Interface will also be used for triggering the same  
kind of measurement.  
: Used to trigger single-run measurement.  
: Used to trigger continuous-run measurement with a term specification  
: Used to trigger continuous-run measurement.  
(Default setting:  
)
Step 1: Each time the  
setup option changes in the following order:  
. While  
the desired setup option is flashing, press the  
key. The operation automatically enters the  
key is pressed the displayed  
PROG  
ENT  
process for setting the OFFS input function from  
the Analog I/O Interface.  
b. Setting the OFFS input function from the I/O interface (Guidance:  
)
Set whether the OFFS input from the Analog I/O Interface is used for enabling the offset  
function or holding the displayed value (while this signal is on, neither the GO/NG  
judgment result nor the analog output value is updated). If the function for holding the  
displayed value is selected, SHIFT + RUN input from the Second Analog Interface is also  
treated as being the same function.  
: Uses the input signal to enable the offset function.  
: Uses the input signal to hold the value.  
(Default setting:  
)
Step 1: Each time the  
setup option toggles between  
. While the desired setup option is  
flashing, press the key. The operation  
key is pressed the displayed  
PROG  
and  
ENT  
proceeds to B6: Setting the use of DCU if the  
Second Analog I/O interface is installed. Other-  
wise the operation proceeds to the Setting the GO  
output function from the I/O interface.  
4 - 16  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
c. Setting the GO output function from the I/O interface (Guidance:  
)
Set whether the GO output from the Analog I/O Interface is used as GO, STB (strobe), or  
ACK (acknowledgment). This selection does not apply to the Second Analog I/O Inter-  
face, since it has its specific output port. For information about each signal, refer to  
Section 6.1.1, I/O Analog Interface.  
: Used as a GO output.  
: Used as a STB output.  
: Used as an ACK output.  
(Default setting:  
)
Step 1: Each time the  
key is pressed the displayed  
PROG  
setup option changes in the following order:  
. While the desired setup  
option is flashing, press the key. The  
ENT  
operation automatically proceeds to B6: Setting  
the use of DCU.  
NOTE If the Second Analog I/O Interface Unit is used  
The Second Analog I/O Interface Unit, if installed, will also perform the function of  
the standard analog I/O interface unit except the analog output through the I/O port.  
4.1.2.7 Selecting and setting the function in the B6 mode  
a. Setting the use of DCU (Guidance:  
)
Set whether to use the Mitutoyo DP-series Data Processing Unit called DCU (Digimatic  
Output Unit).  
The setup guidance for this option will be displayed only if the dedicated interface has  
been installed.  
: Does not use DCU.  
: Only uses the OUTPUT-1 interface from the two interface units.  
: Uses both interface units.  
(Default setting:  
)
Step 1: Each time the  
setup option changes in the following order:  
. While the  
desired setup option is flashing, press the  
key is pressed the displayed  
PROG  
ENT  
key. The operation automatically returns to B0:  
Setting the resolution.  
NOTE About the setting of a DCU  
If is specified so two interfaces are used for single measurement, the  
OUTPUT-2 will be ignored.  
No. 99MBC071A  
4 - 17  
4.2 Calibration  
The LSM system can be calibrated quite easily and with high accuracy.  
4.2.1 Calibration gages and gage stand  
Supported calibration gages and gage stand have the following shapes.  
Thin wire type  
Straight type  
Stepped type  
Calibration gages and stand  
Gage stand  
4.2.2 Entering the calibration mode  
Enter the calibration mode with the following procedure.  
< Preparation >  
(1) Turn on the power and wait at least 30 minutes for the system to thermally stabilize.  
(2) Prior to use, wipe dust and oil from the gage and gage stand with a cloth soaked in  
alcohol or thinner. If calibration has been completed, carefully store them in a dedicated  
case after applying a rust preventive oil to their surfaces.  
(3) Specify SEG 2.  
For information about the method of segment specification, refer to Section 4.5, “Setting  
Up the Functions”.  
PROG  
On edge specification, select either manual measurement or automatic measurement with  
respect to diameter.  
PROG  
PROG  
a) Manual measurement  
b) Automatic measurement  
Set the start edge to 2 and the end edge to 3.  
PROG  
PROG  
a) Start edge  
b) End edge  
4 - 18  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
(4) Setting the HIGH CAL gage.  
HIGH CAL gages vary in shape depending on the LSM model to be calibrated. Set the  
calibration gage so that the calibration guide line ( | ) on the side face of the calibration  
gage comes vertical, and so that the center of the calibrated section is measured.  
In diagram (a), the calibrated position is at the center of the ( | | ) mark, and the center of  
the width (indicated by the arrow mark) in diagram (b).  
(a)  
(b)  
Step 1: Cancel the previously set calibration values.  
It is not necessary if this setup operation is made with the previously used calibration  
gage. However, if the new gage diameter is much different from that of the previous  
one, an error (Err-2) may result. If this is the case, cancel the LOW CAL calibration  
value, then begin with the setting of HIGH CAL value (it does not matter if both the  
LOW CAL and HIGH CAL values are canceled).  
1) Cancel the previous LOW CAL data. Press the  
key in the ready state to initiate the  
PROG  
L.CAL  
LOW CAL setup mode.  
2) Press the and  
keys to  
ENT  
PROG  
PROG  
C
C
cancel the LOW CAL data. This  
automatically restores the ready state.  
ENT  
Step 2: Mount the HIGH CAL gage on the stand.  
PROG  
Press the  
key in the ready state. The  
H.CAL  
previously set HIGH CAL value is displayed, and  
the HIGH CAL setup mode is entered.  
Step 3: Enter the approved dimension of the HIGH CAL  
gage.  
Example.)  
PROG  
.
1
2
2
4
0
0
No. 99MBC071A  
4 - 19  
Step 4: If the  
key is pressed to save the HIGH CAL  
PROG  
ENT  
setup value in memory, the operation automati-  
cally returns to the ready state.  
Step 5: Set the LOW CAL gage.  
As with the HIGH CAL gage, the LOW CAL  
gages vary in shape depending on the LSM model  
to be calibrated. Set the LOW CAL gage so that  
the center of the calibration range is properly  
measured.  
A LOW CAL gage for calibrating dimensions less  
than 2 mm should be set so that it fits with the  
mounting hole of the gage stand.  
Step 6: Set up the LOW CAL gage.  
PROG  
In the ready state press the  
key. The  
L.CAL  
previously set LOW CAL value is displayed, and  
the LOW CAL setup mode is entered.  
Step 7: Enter the verified dimension of the LOW CAL  
gage.  
PROG  
PROG  
.
0
5
1
0
0
Step 8: If the  
key is pressed to save the LOW CAL  
ENT  
setup value in memory, the operation automati-  
cally returns to the ready state.  
4 - 20  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
IMPORTANT Calibration  
1. Before performing a calibration, always perform the necessary setup for the  
resolution. If this order is reversed, the set calibration value may be canceled and  
the measurement accuracy is not guaranteed.  
2. Canceling the HIGH CAL value will also cancel the LOW CAL, offset, and master-  
ing values.  
3. With only a LOW CAL setup value the compensation calculation does not take  
place. This calculation will start when a HIGH CAL (or HIGH CAL and LOW CAL)  
value is set.  
If a HIGH CAL value is set, the CAL guidance ( ) will turn on in the display unit.  
4. A calibration gage is important in that it is critical to the accuracy of the Measuring  
Unit. Wipe dust and oil from the gage with a cloth soaked in alcohol or thinner  
before using it.  
After use, apply a rust preventive oil to its surfaces and store it carefully in a  
dedicated case.  
5. To confirm the HIGH CAL or LOW CAL setup value, press either the  
or  
H.CAL  
key to enter each setup mode, and press the  
(and  
) or  
SET L.CAL  
L.CAL  
H.CAL  
(and  
) key to exit to the ready state after the confirmation is over. Do not  
SET  
perform the setup operation in the confirmation process of the setup data.  
6. On the user-supplied calibration gages, the dimensional ratio of a High CAL gage  
to a Low CAL gage should be greater than 1.2. Calibration performed with the  
calibration gages with diameters that are too close each other may reduce the  
measuring accuracy. The calibration gage should be the one which is made of the  
same or similar material as that of the workpiece. If a calibration gage of different  
material is used, error may be involved in measurement due to the difference in  
surface textures or properties.  
7. For calibration measurement, no restriction exist for segment specification. If a  
gap or displacement needs to be precisely measured, a thickness gage can be  
used for calibration. (There will be a slight difference in measured data between  
those from diameter and gap depending on the segment specified for calibration.)  
No. 99MBC071A  
4 - 21  
4.3 Positioning a Gage or a Workpiece  
1. Position the calibration gage or workpiece so that it is located at the middle of the mea-  
surement position.  
The shaded section in the following diagram is the measuring region where the rated  
measuring accuracy of this system is obtained.  
2. It is also possible to measure a workpiece or gage located outside the measuring region, as  
long as it is within the laser beam scanning range, however, the measurement accuracy  
will be reduced.  
70mm(2.76")  
3mm(.12")  
4.4 How to read-in the amount of light  
For measurement of the fine gap where the light passing through it can not be sufficiently  
secured it is necessary for the system to read-in the amount of light. For more information  
refer to Section 3.2.15, Recording the amount of light.  
Step 1: Removal of obstructions  
Remove any objects (workpiece and fixture) that obstruct the laser path before  
reading in the amount of light.  
Step 2: Enter the function setup mode from the ready  
state.  
PROG  
Step 3: Press the  
and  
keys while the function  
READ  
PROG  
SHIFT  
setup number is flashing to enter the light amount  
check mode.  
Each time the  
key is pressed the setup  
option toggles between  
detection) and  
light).  
(automatic  
(reading in the amount of  
Step 4: Press the  
key while  
is flashing.  
PROG  
PROG  
ENT  
If a sufficient amount of light is detected as a  
result of this positive check, the operation auto-  
matically returns to the ready state. If  
is  
displayed, it indicates that the amount of light is  
insufficient. If this is the case, remove any  
obstruction and cancel the error with the  
key, then perform step 4 again.  
C
4 - 22  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
4.5 Setting Up the Functions  
Make measurement-related setups based on the conditions set in Section 4.1, Basic Setup.  
4.5.1 Outline of the function setup mode  
Ready state  
SET  
SET  
SET  
(
)
SET  
Function No.  
F0  
Setup contents  
Setting the segment  
In the basic setup mode, first set whether the workpiece is an opaque or transparent object. If it is an  
opaque object, then it is possible to specify the number of segments and edges to be measured.  
With the edge specification a multiple-pin workpiece can be measured automatically.  
Segment specification:  
Edge specification:  
Start edge :  
(Opaque object: 1 to 7, Transparent object: 1 to 3)  
(Manual: / Automatic: / Automatic: / Automatic:  
)
(Between edge number 1 and 254 )  
Finish edge :  
(Between edge number 2 and 255)  
F1  
F2  
Setting the measurement interval (measurement time)Note1  
In the basic setup mode either of the two setting methods can be selected.  
Arithmetical average:  
(1 to 2048)  
(32 to 2048)  
Moving average:  
Setting the GO/NG judgment criteria  
In the basic setup mode either of the three setting methods can be selected.  
In addition, if the abnormal value elimination function will be specified, the limits  
(Lower abnormal limit: Upper abnormal limit: Abnormal value count:  
for this abnormal value elimination should be set prior to other setup items.  
Lower limit : Upper limit:  
)
Multi-limit selection 1:  
Multi-limit selection 2:  
Multi-limit selection 3:  
Multi-limit selection 6:  
Target value :  
Lower tolerance limit: Upper tolerance limit:  
F3Note2  
Setting the reference value  
In the basic setup mode it is possible to copy the setup data of a target value to the reference value.  
If this is done the setup guidance for the reference value is not displayed.  
Reference value:  
Gain: (1 to 3)  
Setting the offset and mastering  
Both the offset and mastering can be set.  
Gain:  
(1 to 3)  
F4  
F5  
F6  
Offset:  
Direction:  
(0 , 1) Mastering:  
Setting the data output condition  
Data output condition:  
Periodic data output:  
(0 to 9) : If 1, 3 or 5 is selected →  
(0 to 999)  
Sample measurement Note1  
Number of samples:  
(0 ~ 999) Calculation item:  
(Mean:  
/ Maximum value:  
/ Minimum value:  
/ Range:  
)
No. 99MBC071A  
4 - 23  
Function No.  
F7Note2  
Setup contents  
Setting automatic workpiece detection  
In the basic setup mode either detection by dimension or detection by position can be selected.  
If Not performing the automatic workpiece detectionis selected, the setup guidance for the following  
option will not be displayed.  
Number of measurements:  
Detection lower limit:  
Setting the group judgment  
(0 to 999) Invalidation period:  
Detection upper limit:  
(0 to 9999)  
F8 Note2  
In the basic setup mode setups for the group judgment can be made. If Not performing the group  
judgmentis selected, the setup guidance for the following option will not be displayed.  
Group size :  
(Average:  
(0 ~ 99) Statistical item:  
/ Maximum value:  
/ Minimum value:  
/ Range:  
)
Group lower limit value:  
Group upper limit value:  
Settings following the circle are factory settings.  
Settings following a dot are ones which have been selected in the basic setup.  
Settings with no marking can be made in only one way.  
NOTE 1: Measurement interval and the number of samples are automatically matched in simultaneous measurement.  
NOTE 2: The function number may not be displayed depending on the basic setup contents.  
4 - 24  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
4.5.2 Outline of each function setup mode  
1. Data display unit  
If the basic setup mode is entered, the following is displayed.  
The function setup number  
will be flashing in the most significant digit of the upper  
display section, and the guidance for the setup item, followed by the setup value, will be  
shown to the right of the setup number.  
In the lower display section the measurement from the foreground program number will be  
displayed.  
Function setup number: 1 digit  
Setup item guidance: 3 to 8 digits  
Setup data: Maximum 10 digits  
Unit: 2 digits  
PROG  
Measurement from the  
foregroundprogram number  
2. Setting each setup item  
Use the numeric keys for setting the setup value, such as an offset value, and use the  
and  
keys for selecting the item, such as the statistical item of the sample  
measurement.  
Press the  
key to accept and save the setup data. After the setup content has been  
ENT  
accepted, the operation automatically proceeds to the next setup item.  
3. Setup values that must meet the large/small relationships  
The setup values for GO/NG judgment should meet the following relationships: Abnormal  
lower limit < Abnormal upper limit, Lower tolerance limit < Upper tolerance limit, and  
Lower limit value < Upper limit value.  
If the previously specified setup value needs to be modified to a great extent, it is recom-  
mended to first enter the new setup value thats meets the existing large/small relationship  
or, for safety, cancel the both sides to 0 then set them again.  
4. Confirming the setup contents of each setup item  
To confirm the setup contents of each setup item use only the  
affect the setup contents.  
key, which does not  
ENT  
5. Terminating the function setup mode  
If the  
key is pressed while the function setup number is flashing, operation  
SET  
returns to the ready state.  
If the  
key is pressed in the setup mode of each setup item, operation returns to  
SET  
the selection of a function setup number. If the  
operation returns to the ready state.  
key is pressed again at this point,  
SET  
If the power is turned off halfway to the setup operation, on-going setup contents will  
not be saved in memory. The contents must be set again.  
No. 99MBC071A  
4 - 25  
4.5.3 Function setup mode  
If the function setup mode is entered using the  
PROG  
SET  
key in the ready state, the function setup number  
will be flashing as shown in the figure at the right.  
Each time the  
key is pressed when the function  
setup number is flashing, it will change as follows:  
. Press the  
(
) key while the desired  
ENT  
function setup number is flashing to enter the setup  
mode. If the  
reversed.  
key is pressed, this order will be  
If a key other than the  
pressed during the selection of a function setup number, an operation error will result.  
If each piece of setup data is accepted with the key in the corresponding setup  
,
,
,
,
,
and  
keys are  
ENT  
SET  
SHIFT  
READ  
ENT  
mode, the operation will automatically proceed to the next setup item.  
4.5.3.1 F0: Setting the segment  
Use this function to set the measurement position (segment). The segment specification and  
edge specification methods are provided for this purpose. Both can be selected in the basic  
setup.  
If this setup mode is entered, the previously established data will flash.  
1) Segment specification  
PROG  
Places for displaying the segment numbers are fixed as  
shown in the figure at the right. In this example, set to  
SEG2.  
Segment  
7 6 5 4 3 2 1  
Step 1: If the segment setup mode is entered, the previ-  
ously established data will be displayed.  
PROG  
Press the  
key.  
PROG  
PROG  
2
2
Step 2: Press the  
key to save the setup data  
ENT  
in memory.  
ENT  
Operation automatically proceeds to the  
measurement interval setting.  
TIP Segment setup example  
1. Set to segments (2 + 4).  
2. Set to segments (1 + 5).  
PROG  
PROG  
4
5
2
1
4 - 26  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
2) Edge specification  
Step 1: If the edge specification mode is entered, the  
previously established manual measurement/  
automatic measurement item will be displayed.  
PROG  
PROG  
Each time the  
key is pressed the setup  
option changes in the following order:  
Manual measurement:  
Automatic  
Automatic  
Automatic  
. If the desired setup  
key.  
measurement for pitch:  
measurement for diameter:  
measurement for gap:  
option is displayed, press the  
ENT  
Operation automatically enters the process of setting the start edge.  
Step 2: Set the start edge (between number 1 and  
PROG  
254)  
2
In this example, set the start edge to  
number 2.  
If the  
key is pressed, the operation  
ENT  
automatically enters the process for setting  
the finish edge.  
Step 3: Set the end edge (between number 2  
PROG  
and 255)  
5
6
In this example, set the end edge to  
number 65.  
If the  
key is pressed, the operation auto-  
ENT  
matically proceeds to F1: Setting the measurement  
interval.  
TIP 1. If a calibration is performed using the reference gage (placed in SEG2) with the  
edge specification active, select Manual measurement: or Automatic  
measurement for diameter: , then set the start edge to 2 and end edge to 3.  
2. If the checks on the start and end edges, performed at the end of the setup  
operation, result in start edge > end edge, exchange the start and end edge data.  
If the check result shows that both edge numbers are identical, an error (Err-5)  
results. If this occurs, cancel the setup data and begin the setting with the start  
edge.  
No. 99MBC071A  
4 - 27  
4.5.3.2 F1: Setting the measurement interval (measurement time)  
Use this function to set the measurement interval. This measurement interval should be set  
according to the arithmetical average and moving average, whichever is specified in the basic  
setup.  
1) Arithmetical average (Guidance:  
)
Step 1: The previously set number of scans for averaging  
is displayed. Select between 1 and 2048 times .  
The relationship between the number of scans for  
averaging and measurement intervals are shown in  
the table below.  
PROG  
Relationship between the number of scans for averaging and measurement intervals (measure-  
ment times)  
Number of scans for  
averaging  
Measurement intervals (measurement time)  
Arithmetical average Moving average  
2nd and subsequent  
measurements  
1st measurement  
1
2
0.0013 sec  
0.0025 sec  
0.005 sec  
0.01 sec  
0.02 sec  
0.04 sec  
0.08 sec  
0.16 sec  
0.32 sec  
0.64 sec  
1.28 sec  
2.56 sec  
4
8
16  
32  
0.04 sec  
0.08 sec  
0.16 sec  
0.32 sec  
0.64 sec  
1.28 sec  
2.56 sec  
0.02 sec  
0.02 sec  
0.02 sec  
0.02 sec  
0.02 sec  
0.02 sec  
0.02 sec  
64  
128  
256  
512  
1024  
2048  
Each time the  
key is pressed, the setup option changes in the following order:  
. For this example select 512 times.  
Select 512 times.  
PROG  
Step 2: Press the  
memory.  
key to save the setup data in  
PROG  
ENT  
ENT  
The operation automatically proceeds to F2:  
Setting the GO/NG judgment criteria.  
4 - 28  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
2) Moving average (Guidance:  
Different in the setup guidance (  
)
) and the  
PROG  
number of scans for averaging (between 32 and  
2048), however, the setup method is same with  
the arithmetical average.  
NOTE 1. A larger number of scans for averaging will improve the repeatability.  
If measuring time permits, set the greatest number of scans for averaging pos-  
sible.  
2. If the number of scans for averaging is set to between 1 and 4, the scan signals  
will be thinned for the measurement. This results in a measurement interval of  
0.002 to 0.003 second.  
No. 99MBC071A  
4 - 29  
4.5.3.3 F2: Setting the GO/NG judgment criteria  
Set the GO/NG judgment criteria according to the tolerance judgment method: (Lower limit  
value + Upper limit value), (Multi-limit selection: 7 stages), and (Target value + tolerance),  
whichever is specified in the basic setup. If Using the abnormal value elimination function”  
has been specified, the abnormal limit values should be set prior to setting the GO/NG  
judgment criteria.  
In this example assume that the machining target value is 12.5 +/- 0.01 mm, and that all the  
abnormal limits (lower and upper) and GO/NG judgment criteria are canceled (set to 0).  
1) Setting the abnormal limit values  
Set as follows: Lower abnormal limit = 12.48 mm, Upper abnormal limit = 12.52 mm,  
Abnormal value count = 3.  
Step 1: The previously set lower abnormal limit is  
PROG  
displayed.  
Enter 12.48.  
PROG  
PROG  
8
1
2
.
4
Step 2: Press the  
key.  
ENT  
The setup data will be saved in memory and  
operation automatically proceeds to the setting for  
the upper abnormal limit.  
Step 3: Enter 12.52, which is the setup data for the  
upper abnormal limit.  
PROG  
PROG  
2
1
2
.
5
Step 4: Press the  
key.  
ENT  
The setup data will be saved in memory and  
operation automatically proceeds to the abnormal  
value count setting.  
Step 5: Enter 3, which is the setup data for the  
PROG  
PROG  
3
abnormal value count.  
Step 6: Press the  
key.  
ENT  
The setup data will be saved in memory  
and operation will automatically proceed to  
the GO/NG judgment criteria setting.  
The method of GO/NG judgment varies  
with the contents of the basic setup.  
Case of  
(Lower limit value and Upper limit value)  
PROG  
PROG  
Case of (Multi-limit selection)  
Case of (Target value + tolerance)  
4 - 30  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
2) GO/NG judgment criteria setting (by “Lower limit value and upper limit value”)  
In this example assume that the lower limit value is 12.49 mm and that the upper limit  
value is 12.51 mm.  
Step 1: The previously set lower limit value is displayed.  
PROG  
Enter 12.49.  
PROG  
PROG  
9
1
2
.
4
Step 2: Press the  
key.  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the upper  
limit value setting.  
Step 3: Enter 12.51, which is the setup data for the  
upper limit value.  
PROG  
PROG  
1
1
2
.
5
Step 4: Press the  
key.  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the reference  
value setting.  
No. 99MBC071A  
4 - 31  
3) Setting the GO/NG judgment criteria (by multi-limit selection)  
In this example assume the following:  
L1=12.49mm  
L2=12.494mm  
L3=12.498mm  
L4=12.502mm  
L5=12.506mm  
L6=12.51mm  
Step 1: The previously entered setup value for L1 is  
PROG  
displayed.  
Enter 12.49.  
PROG  
PROG  
9
1
2
.
4
Step 2: Press the  
key.  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the L2 setting.  
Step 3: Enter 12.494, which is the setup data for L2.  
PROG  
PROG  
9
4
1
2
.
4
Step 4: Press the  
key.  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the L3 setting.  
Step 5: As with L1 and L2, set L3, L4, and L5.  
Step 6: Enter 12.51, which is the L6 setup value.  
PROG  
PROG  
PROG  
1
1
2
.
5
Step 7: Press the  
key.  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the reference  
value setting.  
4 - 32  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
4) Setting the GO/NG judgment criteria (with “Target value + tolerance”)  
In this example assume that the target value is 12.5 mm, lower tolerance is -0.01 mm, and  
upper tolerance is 0.01 mm.  
Step 1: The previously set target value is displayed.  
PROG  
Enter 12.5.  
PROG  
PROG  
1
2
.
5
Step 2: Press the  
key.  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the lower  
tolerance value setting.  
The target value will be automatically copied on  
the reference value, if so set in the basic setup,  
and if any scale value was not set, it will be set to  
1.  
Step 3: Enter 0.01, which is the lower tolerance value,  
and a negative sign.  
PROG  
PROG  
(
)
.
0
0
1
+/  
-
Step 4: Press the  
key.  
PROG  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the upper  
tolerance value setting.  
Step 5: Enter 0.01, which is the upper tolerance value.  
PROG  
PROG  
(
)
.
0
0
1
Step 6: Press the  
key.  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the reference  
value setting.  
The displayed guidance for the setup item will  
vary depending whether Copying the target value  
to the reference valuehas been specified in the  
basic setup.  
When not copying the target value  
to the reference value.  
PROG  
When copying the target value  
to the reference value.  
No. 99MBC071A  
4 - 33  
4.5.3.4 F3: Setting the reference value  
Set the reference value and/or scale value here. If Copying the target value to the reference  
valuehas been specified in the basic setup, the setup guidance for the reference value will  
not be displayed, however, setting the scale value is permitted.  
In this example assume that the reference value is 12.5 mm, and the scale value is 1.  
Step 1: The previously set reference value is displayed.  
PROG  
PROG  
Enter 12.5.  
If 1is entered the currently displayed  
setup value changes to 1, however, it will  
1
not be saved in memory until the  
key is pressed.  
ENT  
Enter 2.  
PROG  
PROG  
PROG  
2
.
Enter a decimal point (.).  
Enter 5.  
5
Step 2: Press the  
key.  
PROG  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the scale  
value setting.  
For information about the relationship between the  
analog voltage output and scale value, refer to  
Section 4.5.3.5, Analog voltage output and scale  
value.  
Enter a scale value of 1.  
PROG  
PROG  
Step 3: Press the  
key.  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the offset  
value setting.  
4 - 34  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
4.5.3.5 Analog voltage output and scale value  
The analog voltage output is determined from (Measured data - reference value) x scale value  
(gain), and therefore varies depending on the resolution set on each Measuring Unit, as  
shown in the following table.  
Table 1: Metric units (The upper limit of the analog output must be within the range of actual  
measurements)  
Scale value (1)  
Minimum readout on the display unit  
Number  
0.01µm  
0.02µm  
0.05µm  
0.1µm  
Resolution  
2.5mV/0.01µm  
5V/20µm  
2.5mV/0.02µm  
5V/40µm  
2.5mV/0.05µm  
5V/100µm  
2.5mV/0.5µm  
5V/1mm  
2.5mV/0.1µm  
5V/200µm  
2.5mV/1µm  
5V/2mm  
1
Maximum output  
Resolution  
2.5mV/0.1µm  
5V/200µm  
2.5mV/1µm  
5V/2mm  
2.5mV/0.2µm  
5V/400µm  
2.5mV/2µm  
5V/4mm  
2
3
Maximum output  
Resolution  
2.5mV/5µm  
5V/10mm  
2.5mV/10µm  
5V/20mm  
Maximum output  
Scale value (2)  
Number  
Minimum readout on the display unit  
0.2µm  
0.5µm  
1µm  
2µm  
Resolution  
2.5mV/0.2µm  
5V/400µm  
2.5mV/2µm  
5V/4mm  
2.5mV/0.5µm  
5V/1mm  
2.5mV/1µm  
5V/2mm  
2.5mV/2µm  
5V/4mm  
1
2
Maximum output  
Resolution  
2.5mV/5µm  
5V/10mm  
2.5mV/10µm  
5V/20mm  
2.5mV/20µm  
5V/40mm  
2.5mV/200µm  
Maximum output  
Resolution  
2.5mV/20µm  
2.5mV/50µm  
2.5mV/100µm  
3
Maximum output  
5V/40mm  
5V/100mm  
5V/200mm  
5V/400mm  
Scale value (3)  
Minimum readout on the display unit  
Number  
5µm  
10µm  
100µm  
Resolution  
2.5mV/5µm  
5V/10mm  
2.5mV/10µm  
5V/20mm  
2.5mV/100µm  
5V/200mm  
2.5mV/1mm  
5V/2000mm  
2.5mV/10mm  
5V/20000mm  
1
2
3
Maximum output  
Resolution  
2.5mV/50µm  
5V/100mm  
2.5mV/500µm  
5V/1000mm  
2.5mV/100µm  
5V/200mm  
2.5mV/1mm  
5V/2000mm  
Maximum output  
Resolution  
Maximum output  
No. 99MBC071A  
4 - 35  
Table 2: Inch unit (E=25.4 mm) (The upper limit of the analog output must be within the  
range of actual measurements)  
Scale value (1)  
Minimum readout on the display unit  
Number  
.000001E  
.000002E  
.000005E  
.00001E  
Resolution  
2.5mV/.000001E  
5V/.002E  
2.5mV/.000002E  
5V/.004E  
2.5mV/.000005E  
5V/.01E  
2.5mV/.00001E  
5V/.02E  
1
Maximum output  
Resolution  
2.5mV/.00001E  
5V/.02E  
2.5mV/.00002E  
5V/.04E  
2.5mV/.00005E  
5V/.1E  
2.5mV/.0001E  
5V/.2E  
2
3
Maximum output  
Resolution  
2.5mV/.0001E  
5V/.2E  
2.5mV/.0002E  
5V/.4E  
2.5mV/.0005E  
5V/1E  
2.5mV/.001E  
5V/2E  
Maximum output  
Scale value (2)  
Number  
Minimum readout on the display unit  
.00002E  
.00005E  
.0001E  
.0002E  
Resolution  
2.5mV/.00002E  
5V/.04E  
2.5mV/.00005E  
5V/.1E  
2.5mV/.0001E  
5V/.2E  
2.5mV/.0002E  
5V/.4E  
1
2
3
Maximum output  
Resolution  
2.5mV/.0002E  
5V/.4E  
2.5mV/.0005E  
5V/1E  
2.5mV/.001E  
5V/2E  
2.5mV/.002E  
5V/4E  
Maximum output  
Resolution  
2.5mV/.002E  
5V/4E  
2.5mV/.005E  
5V/10E  
2.5mV/.01E  
5V/20E  
2.5mV/.02E  
5V/40E  
Maximum output  
Scale value (3)  
Minimum readout on the display unit  
Number  
.0005E  
.005E  
Resolution  
2.5mV/.0005E  
5V/1E  
2.5mV/.005E  
5V/10E  
1
2
3
Maximum output  
Resolution  
2.5mV/.005E  
5V/10E  
2.5mV/.05E  
5V/100E  
Maximum output  
Resolution  
2.5mV/.05E  
5V/100E  
2.5mV/.5E  
5V/1000E  
Maximum output  
4 - 36  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
4.5.3.6 F4: Setting the offset value  
Set the offset value and/or mastering value here.  
In this example assume that the offset value is 12.5 mm, the direction is 0 (positive), and the  
mastering value is 0.0. Assume also that the current offset value is 12.345 mm.  
Step 1: The previously set offset value is displayed.  
PROG  
Enter 12.5.  
PROG  
PROG  
1
2
.
5
Step 2: Offset guidance ( ) turns on and the setup data  
will be saved in memory and the operation  
automatically proceeds to the direction setting.  
Step 3: Set the direction to 0.  
PROG  
PROG  
Since in this example the previous setting is 0,  
it is not necessary to enter the same value again.  
However, if there is a need to change the direction  
to 1, enter 1.  
Step 4: Press the  
key.  
ENT  
The setup data will be saved in memory and the  
operation automatically proceeds to the mastering  
value setting.  
Step 5: Enter 0.0, which is the mastering value.  
PROG  
PROG  
0
.
0
Step 6: Press the  
key.  
ENT  
The setup data will be saved in memory and the  
operation automatically enters the data output  
condition setting.  
No. 99MBC071A  
4 - 37  
IMPORTANT How to use the offset function  
1. To obtain an offset value, it is necessary to set up the reference gage in place  
(the offset value is a compensation value determined from the measurement of  
the reference gage). This offset setup takes about 1 second.  
2. If the existing setup value is applied, it is not  
necessary to carry out the offset. To force the  
offset operation using the same data, move the  
PROG  
highlighted digit place with the  
key. This  
makes the offset carried out, since the system  
judges the data is changed.  
For this operation press the  
/
key in the  
MASTER OFFSET  
ready state. With this single key operation offset  
will be carried out.  
3. So that the maximum displayable range is not exceeded during measurement, the  
offset value must be set well within the maximum value shown in the table below.  
If measured data exceed the maximum value, “9999999” will be displayed.  
Resolution (µm)  
Maximum value (mm)  
Resolution (E)  
Maximum value (E)  
.000001/.000002/  
.000005  
0.01/0.02/0.05  
89.99999  
8.999999  
0.1/0.2/0.5  
899.9999  
8999.999  
.00001/.00002/.00005/  
.0001/.0002/.0005/.005  
89.99999  
1/2/5/10/100  
4. Precautions prior to modifying the unit system  
Note that if an offset value exceeds the above described maximum value when  
the unit system is changed from E to metric, the offset function will automatically  
be reset.  
(Example: If the integer part of the maximum value is restricted to 2 digits,  
converting from 4E to 101.6 mm will exceed the limit.)  
4 - 38  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
4.5.3.7 F5: Setting the data output conditions  
Set the data output conditions (0-9) and periodical output timer (0-999 sec).  
The unit used with the periodical output timer is seconds. Setting it to 0means that output  
takes place for each measurement.  
In this example assume that the data output condition is 3 and that the periodical output timer  
is 10 seconds.  
Step 1: The previously set data output conditions are  
displayed.  
PROG  
The setup data for the data output conditions is  
shown in the table below.  
RS-232C  
Data output condition  
GP-IB  
DCU  
Printer  
Remark  
0
1
2
3
The periodical output timer can be set  
The periodical output timer can be set  
4
5
6
7
8
9
The periodical output timer can be set  
RUN  
C.RUN  
key, etc., is pressed.  
: Outputted for each measurement if  
or  
RUN  
C.RUN  
: Press the  
or  
key to trigger the measurement. The measurement result will be outputted if it  
falls on GO.  
RUN  
C.RUN  
: Press the  
or  
key to trigger the measurement. The result will be outputted if it falls on NG.  
: No output will be made.  
Enter 3as the data output condition.  
PROG  
PROG  
3
Step 2: Press the  
key.  
ENT  
If the data output condition is 1, 3, or 5, the  
operation proceeds to the periodical output timer  
setting, otherwise it proceeds to the sample  
measurement setting.  
Step 3: Set the periodical output timer to 10 seconds.  
PROG  
PROG  
1
0
Step 4: Press the  
memory.  
key to save the setup data in  
ENT  
The operation enters the sample measurement  
setting.  
No. 99MBC071A  
4 - 39  
4.5.3.8 F6: Setting the sample measurement  
Set the conditions for the sample measurement here.  
For this sample measurement use single-run measurement or continuous-run measurement,  
and select either 0, 1 , or 2 to 999 samples.  
Number of samples Single-run measurement  
Continuous-run measurement  
Called "zero-run measurement".  
Does not function (causes an input error).  
Measurement is initiated by pressing the key assigned to  
single-run measurement, and measurement continues until the  
same key is pressed again. The result of the specified statistical  
item will be displayed as it is latched on the display.  
0
The sample measurement does not take place, but a normal  
single-run measurement does.  
The sample measurement does not take  
place, but a normal continuous-run  
measurement does.  
1
The specified number of samples are measured and the result  
The single-run measurement described at  
of the specified statistical item will be displayed as it is latched the left will be repeated.  
on the display.  
2~999  
In this example assume that the number of samples is 50, and the statistical item is range.  
Step 1: The previously set number of samples flashes.  
PROG  
Enter 50as the number of samples.  
PROG  
PROG  
5
0
Step 2: Press the  
key.  
ENT  
If the number of samples entered is 1, the  
operation proceeds to the automatic workpiece  
detection setting, otherwise if 0or 2 to 999is  
entered, it proceeds to the statistical item setting.  
Step 3: Select the objective statistical item. Each time the  
key is pressed, the setup option changes in  
the following order:  
. Select  
in this example.  
PROG  
PROG  
(
)
Step 4: Press the  
key.  
ENT  
The operation automatically proceeds to the  
automatic workpiece detection setting.  
4 - 40  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
4.5.3.9 F7: Automatic workpiece detection setting  
Set the conditions for automatic workpiece detection here.  
Select between 0 (no automatic workpiece detection) and 999 measurements, and select  
between 0 to 9999 ms for the invalidation period.  
In this example assume the following:  
Number of measuring times =1, Invalidation period = 100 ms (0.1 sec), Lower detection limit  
= 12.2 mm, Upper detection limit = 12.8 mm.  
Step 1: The previously set data output condition is  
flashing.  
PROG  
Enter 1as the number of measurements.  
PROG  
PROG  
1
Step 2: Press the  
key.  
ENT  
The operation automatically proceeds to the  
invalidation period setting.  
Step 3: Set the invalidation period to 100 ms.  
PROG  
PROG  
1
0
0
Step 4: Press the  
key.  
ENT  
The operation automatically proceeds to the lower  
detection limit setting.  
Step 5: Set the lower detection limit to 12.2 mm.  
PROG  
PROG  
1
2
.
2
Step 6: Press the  
key.  
ENT  
The operation automatically proceeds to the upper  
detection limit setting.  
Step 7: Set the upper detection limit to 12.8 mm.  
PROG  
PROG  
1
2
.
8
Step 8: Press the  
key.  
ENT  
The operation automatically proceeds to the group  
judgment setting.  
No. 99MBC071A  
4 - 41  
4.5.3.10 F8: Setting the group judgment  
Set the conditions for the group judgment here.  
Select between 0 and 99 for group size (0 and 1 are used for not performing group judg-  
ment).  
In this example assume that the group size is 5, and the objective statistical item is mean.  
Step 1: The previously set group size is flashing.  
PROG  
Enter 5as the group size.  
PROG  
PROG  
5
Step 2: Press the  
key.  
ENT  
If 0 or 1 is set for the group size in step 1 above,  
the operation automatically proceeds to the  
segment setting, which is the first stage of this  
function setup. Otherwise proceeds to the statisti-  
cal setting.  
Step 3: Select the objective statistical item, Each time the  
key is pressed, the setup option will change  
PROG  
in the following order:  
. Since meanis to be set in this  
example, no key input is necessary at this step.  
Step 4: Press the  
key.  
PROG  
PROG  
ENT  
The operation automatically proceeds to the group  
lower limit setting.  
Step 5: Set the group lower limit in the manner similar to  
that of the lower limit setting. Press the  
key  
ENT  
and the operation automatically proceeds to the  
group upper limit setting.  
Step 6: Set the group upper limit in the manner similar to  
PROG  
that of the upper limit setting. Press the  
key  
ENT  
and the operation automatically proceeds to the  
segment setting, which is the first stage of this  
function setup.  
4 - 42  
No. 99MBC071A  
4. SETTING UP THE MEASURING CONDITIONS  
4.5.3.11 Confirming the function setup contents  
Every setting that has been made in the function setup mode can be confirmed using the  
key without affecting the existing setup data.  
ENT  
Step 1: In the ready state press the  
and  
keys  
ENT  
PROG  
SET  
to enter the segment setup mode.  
Step 2: Each time the  
key is pressed, each piece of setup data for segments through  
ENT  
group judgment will be displayed sequentially. Record these data in the List of  
Function Setups, at the end of this user's manual.  
Step 3: Press the  
key twice to return to the ready state.  
SET  
No. 99MBC071A  
4 - 43  
MEMO  
4 - 44  
No. 99MBC071A  
MEASUREMENT MODE  
Perform your measurement according to the basic setup and measuring  
conditions specified.  
5
This chapter describes the items which can be set in the ready state and  
gives measurement examples.  
5.1 Outline of the Measurement Mode  
The measurement mode includes the ready state, single-run measurement mode, and continu-  
ous-run measurement mode.  
1) Ready state  
The BUSY LED flashes each time the measurement is performed.  
2) Single-run measurement  
The RUN LED stays lit from the start of measurement until the display latch timer expires,  
and the BUSY LED turns on each time the measured data is updated.  
3) Continuous-run measurement  
The RUN LED turns on if measurement starts and stays on during repeated measurements.  
The BUSY LED turns on each time the measured data is updated. When measurement is  
terminated the measured data is latched on the display and the RUN LED turns off when  
the display latch time expires.  
5.1.1 Settings made in the measurement mode  
• This system employs a 2-section display unit, which enables continuous display of setup  
values while measurements are being made. Also, it provides a simple method for modify-  
ing the setup values.  
• The setup mode of the specific setup items can be entered either by using the arrow key  
(
) or by pressing the corresponding item keys directly.  
No. 99MBC071A  
5 - 1  
5.1.1.1 Setup operation from the arrow key  
If the  
key is pressed in the ready state, the setup operation will progress in the follow-  
ing way. The displayed contents will vary depending on the basic setup.  
(If edge specification is enabled)  
(If segment specificationis enabled)  
PROG  
PROG  
PROG  
(Where the moving  
average is selected)  
(Where the arithmetical  
average is selected)  
PROG  
PROG  
PROG  
PROG  
(Where the abnormal  
value elimination is specified)  
(If "lower limit value and  
(If the multi-limit  
upper limit value" is specified)  
(If "target + tolerance" is specified)  
selection is specified)  
PROG  
PROG  
PROG  
PROG  
PROG  
PROG  
PROG  
PROG  
PROG  
PROG  
PROG  
PROG  
(This is not displayed when the target  
value is copied to the reference value.)  
(This is not displayed if  
the offset function is canceled.)  
(Where the group  
judgment is specified)  
5 - 2  
No. 99MBC071A  
5. MEASUREMENT MODE  
The setting procedure is as follows:  
Step 1: Press the key in the ready state to enter the  
setup mode.  
PROG  
Step 2: Each time the  
key is pressed, the setup guidance for each setup item changes  
in the following order:  
(
) →  
(
) (  
) →  
(
• • •  
or  
) (  
) →  
(  
) (  
). Press the  
key to reverse  
key when the desired setup option is flashing. Press the  
ENT  
this order.  
Step 3: Modify the setup data. The method used to enter data is the same as that used in the  
function setup mode.  
For practice, modify the offset value from 12.5 mm to 12.34567 mm.  
The previously set data is displayed and its least significant digit is flashing.  
Enter 12.34567.  
PROG  
4
7
1
2
.
3
5
6
Step 4: Press the  
key to initiate the following  
PROG  
ENT  
operation flow: Measure a reference gage, execute  
the compensation calculation, save the setup data  
in memory, then return to the ready state.  
If the insertion of a comma after the thousandth  
digit has been specified in the basic setup, the  
comma will be automatically inserted.  
(In single measurement)  
For a single measurement the most recent setup  
item will always be displayed in the upper section  
of the display unit. However, the upper section of  
the display unit shows a background measurement  
in the simultaneous measurement.  
PROG  
(In simultaneous measurement)  
TIP 1. In simultaneous measurement the upper section of the display unit shows a  
background measurement. However, the setup mode for the foreground program  
can be entered by pressing the  
key.  
2. In single measurement, if an important setup item being displayed in the upper  
section of the display unit is retained, confirmation of the measuring object and  
modification of the setup data is easy.  
3. If the  
key is pressed halfway in the setup operation, the operation is sus-  
SET  
pended and the ready state is restored. This can be used to confirm the setup  
data.  
4. The last setup item made will be displayed first.  
No. 99MBC071A  
5 - 3  
5.1.1.2 Setup that can be made directly from each setup item key  
The user can enter the specific setup mode by pressing the corresponding setup item key  
, or ) in the ready state.  
(
,
/
,
/
LIMIT SHIFT MASTER OFFSET  
REF  
LOCK UNIT  
1)  
key  
LIMIT  
This key is used to enter the setup mode for only the  
GO/NG judgment function.  
PROG  
If the  
key is pressed after the setup data is  
ENT  
entered, the set up data will be saved in memory and  
operation will return to the ready state. If the key  
LIMIT  
or  
key is pressed halfway in the setup operation,  
SET  
the setup operation is aborted, and operation returns to  
the ready state.  
2)  
+
/
key  
SHIFT  
MASTER OFFSET  
This key combination is used to enter the setup mode  
for only the mastering function.  
PROG  
If the  
key is pressed after the setup data is  
ENT  
entered, the set up data will be saved in memory and  
operation will return to the ready state. If the  
/
MASTER  
key or  
key is pressed halfway in the setup  
SET  
OFFSET  
operation, the setup operation is aborted, and operation  
returns to the ready state.  
3)  
key  
REF  
This key is used to enter the setup mode for only the  
reference value and scale value.  
PROG  
If the  
key is pressed after the setup data is entered,  
ENT  
the setup data will be saved and the operation will return  
to the ready state. If the key or key is  
REF  
SET  
pressed halfway in the setup operation, the setup opera-  
tion is aborted, and operation returns to the ready state.  
4)  
/
key  
LOCK UNIT  
This key is used to enter the modification mode of the unit of  
measurement. If the metric unit is currently being used,  
will be flashing; and if the E unit is currently being used,  
will be flashing.  
PROG  
If the  
key is pressed, the unit is changed to that which is currently flashing, then  
ENT  
operation returns to the ready state.  
If the key or key is pressed halfway in the setup operation, the setup  
/
LOCK UNIT  
SET  
operation is aborted, and operation returns to the ready state.  
The metric to E (1 E = 25.4 mm) conversion table is shown below.  
mm  
E
0.00001  
0.00002  
.000001  
0.00005  
.000002  
0.0001  
0.0002  
.00001  
0.0005  
.00002  
.000001 *  
.000005  
mm  
E
0.001  
0.002  
.0001  
0.005  
.0002  
0.01  
0.1  
.00005  
.0005  
.005  
Note 1: Theoretically, conversion of a value with an asterisk ("*") into the E system results in a value  
of .0000005. On this LSM, the value will be converted into a resolution of .000001.  
Note 2: For information about the resolutions that can be selected for each Measuring Unit refer to  
Section 4.1.2.1, "B0 mode".  
5 - 4  
No. 99MBC071A  
5. MEASUREMENT MODE  
5.2 Other Functions  
From the ready state it is possible to activate the following modes.  
5.2.1 Key lock  
Press the  
and  
/
keys to activate the key lock mode. Subsequently, key  
SHIFT  
LOCK UNIT  
operations other than  
and  
/
keys will not be accepted. To cancel this mode,  
SHIFT  
LOCK UNIT  
press the same keys again.  
However, if the key lock mode is initiated by the LOCKcommand from the RS-232C/GP-  
IB interface, it can not be canceled by any key operation.  
The only way the key lock mode is canceled is by turning the power off.  
5.2.2 Displaying the measuring position  
If the  
and  
keys are pressed in the ready state, the measuring position (focal  
READ  
SHIFT  
position) display mode is entered. The ready state can be returned to if the  
key or  
READ  
key is pressed.  
SET  
The displayed value is not defined, but a value that is proportional to the beam diameter at  
the measuring position.  
Since the measurement is defined at the focal position where the displayed value is the  
smallest, take measurements at a position as close to the focal position as possible.  
If the measured position is off the focal position, the measurement accuracy will be  
reduced.  
PROG  
Measuring position  
Beam diameter at each position  
The laser scanning beam is stopped down so that it has a minimum diameter at the measure-  
ment position (focal position). Since the beam diameter gets thicker the farther it gets from the  
focal point, the repeatability will be reduced if measurements are taken far out.  
Therefore, always perform measurement at the focal position.  
If a very thin workpiece is measured outside the measuring region, Err-0(no objective  
workpiece present) may be displayed.  
Focal position  
f–θ Lens  
Beam diameter at each position  
Check the measurement position in the up/down direction with the W.P. LED.  
No. 99MBC071A  
5 - 5  
5.3 Applied Measurement  
Perform measurement according to the conditions set.  
This section gives example operations for a better understanding of the versatile functions of  
this instrument.  
For information about actual setup methods refer to Section 3.4, Outline of Key Opera-  
tions, Section 4.1, Basic Setup, and Section 4.5, Setting up the Functions.  
5.3.1 Diameter measurement of a precision-machined workpiece  
Perform a single-run measurement and make a GO/NG judgment of the workpiece diameter.  
Suppose that D = 10 0.002 mm.  
Set the following:  
Segment 1  
Segment 2  
D
Laser scan direction  
1. Segment = 2  
2. Number of scans for averaging = 512 or more  
For precision measurement set a large value.  
3. GO/NG criteria  
Segment 3  
a. Lower limit value = 9.998 mm  
b. Upper limit value = 10.00201 mm  
(If 10.002 mm is accepted as GO, add the resolution to this value. This also applies  
to the following examples.)  
Measurement  
1. Perform measurement in the ready state.  
The GO/NG LEDs and RUN LED are off, and the  
BUSY LED turns on for each measurement.  
PROG  
GO +NG  
GO +NG  
GO +NG  
RUN BUSY  
RUN BUSY  
RUN BUSY  
-NG  
2. Start a single-run measurement. “  
PROG  
will be displayed in the lower section of the display  
unit. Also, the RUN LED lights and stays lit.  
-NG  
3. After the set measurement interval (approximately  
0.64 seconds, for 512 times averaging), the BUSY  
LED lights for a moment, then the measured data is  
latched on the display.  
PROG  
-NG  
The measured data is subjected to GO/NG judgment,  
and the result will be outputted on the GO/NG  
LEDs. It will also be, depending on the setup,  
outputted to the RS-232C (printer)/GP-IB and  
Digimatic Code Output Unit.  
TIP About the number of scans for averaging and repeatability  
If high accuracy is required, select the largest number of scans for averaging pos-  
sible.  
In general, doubling the number of scans for averaging improves repeatability by 1.4  
times.  
5 - 6  
No. 99MBC071A  
5. MEASUREMENT MODE  
5.3.2 Measurement of the lead pitch of a multiple-pin IC  
If the edge specification is made, it is possible to measure a dimension between two optional  
edges from between 1 and 255 edges. This can be applied to inspecting the IC lead bend and  
measurement of the head gap of an HDD.  
Below is an example where the IC lead bend of a 160-pin flat package IC must be checked  
using the automatic workpiece detection function. Assume that the pin thickness and lead-to-  
lead interval are identical according to the specification.  
The following IC specifications are used: 40 leads are on one side, the lead-to-lead interval is  
0.635 mm (1/40"), the pitch tolerance is 0.01 mm.  
• Basic setup  
Laser scan direction  
1. Segment specification  
Edge 1  
Specify the edge specification method.  
2. Automatic workpiece detection  
Edge 2  
Specify use of automatic workpiece detection.  
1PIN  
2PIN  
P1  
P2  
• Function setup  
1. Segment  
a. Start segment = 2  
b. Finish segment = 81  
3PIN  
(Last lead number x 2 +1)  
2. Number of scans for averaging = 32  
3. GO/NG judgment  
a. Lower limit = 0.625 mm  
b. Upper limit = 0.645 mm  
4. Setting automatic measurement  
Specify the pitch measurement.  
5. Automatic workpiece detection setup  
Measurement time = 1  
39PIN  
40PIN  
P39  
Edge 81  
Edge 82  
Invalidation period = 20 ms  
Lower detection limit = 0.6 mm  
Upper detection limit = 0.67 mm  
No. 99MBC071A  
5 - 7  
• Measurement  
Press the  
measurement starts.  
Provided that edges 1 through 82 are detected within  
the measuring region and that the measurements of the  
edges 2 and 3 are within the detection range, the system  
recognizes the workpiece presence and starts actual  
measurements after the elapse of invalidation period.  
key.  
PROG  
-NG  
C.RUN  
is displayed and continuous-run  
GO +NG  
RUN BUSY  
In approximately 1.62 second after the invalidation  
period the measured data will be displayed.  
If the tolerancing judgment result is GO, the mean  
value is displayed.  
If the judgment result is NG, the number of the pin  
pitch where NGwas detected for the first time is  
also displayed.  
PROG  
-NG  
GO +NG  
RUN BUSY  
If the next objective IC enters the measuring region, it is automatically detected and  
measurement will be repeated.  
TIP 1. Measurement time of automatic measurement  
{ (Number of objective leads of measurement) x (Measurement interval) + (calcu-  
lation time: 20 ms)} = (40 x 40 + 20) ms = 1.62 second.  
2. If GO/NG judgment is NG  
The NG measurement data, which is detected first, is displayed and the judg-  
ment result is outputted. Subsequent measurement is stopped.  
3. For the automatic workpiece detection on IC or connector measurement, the part  
to be measured (such as PIT, DIA, GAP) of the smallest edge number (falls on  
pin No.1) is used for detection, if the diameter detection method is specified.  
With the position-detection method measurement starts when the edge of the  
smallest eage number is detected.  
IMPORTANT About automatic measurement of a moving workpiece  
For automatic measurement on a multi-pin IC, etc., this instrument will sequentially  
perform measurement from the smallest edge number in the scanning range. For  
this reason, if any edge moves outside the scanning range during measurement, the  
edge number may change, resulting in incorrect measurement. Therefore, allow a  
sufficient measuring time including the invalidation period for automatic measure-  
ment.  
If possible, take measures so that the workpiece stops within the measuring region.  
5 - 8  
No. 99MBC071A  
5. MEASUREMENT MODE  
5.3.3 Applied Measurement with Offset/Zero-Set Functions  
1. Applied measurement with offset function 1  
The offset function can be applied for converting  
the reference gage dimension to a nominal dimen-  
sion (Figure a).  
Laser scan direction  
Segment 1  
Segment 2  
øD  
In Figure a set the offset direction to 0(positive).  
Example of [figure a]  
Segment 3  
[Figure a]  
Let D = 20.0005 0.0015 mm  
• Basic setup  
Set up according to the requirement.  
• Function setup  
1. Segment = 2  
2. Number of scans for averaging = 512  
3. GO/NG judgment  
a. Lower limit  
= 19.9985 mm  
b. Upper limit  
= 20.0015 mm  
4. Offset  
a. Set the nominal dimension of the gage to 20.0 mm.  
b. Direction = 0 (positive)  
• Measurement  
PROG  
The ready state display appears as shown at the right  
before the offset is set.  
GO +NG  
GO +NG  
GO +NG  
RUN BUSY  
RUN BUSY  
RUN BUSY  
-NG  
If the offset value is set to 20.0 mm, the guidance  
display for the OFFSET guidance indicator ( ) turns  
on, and the measurement is also replaced to 20.0 mm.  
PROG  
-NG  
Press the  
key.  
PROG  
RUN  
is displayed and single-run measure-  
ment starts.  
After the first measurement interval the measurement  
value is displayed, and the GO/NG judgement result is  
outputted.  
-NG  
TIP 1. To re-activate the offset function using the existing offset value and direction,  
press the key. With this single key operation, offset can be achieved.  
/
MASTER OFFSET  
2. It is possible to obtain a deviation from the reference gage by offsetting (zero-  
setting) it to 0.0.  
No. 99MBC071A  
5 - 9  
2. Applied measurement with offset function 2  
Reference piece  
Segment 1  
The offset function is used to measure a  
workpiece larger than the measuring range  
of this system.  
Laser scan direction  
Workpiece  
W
L
In Figure b set the offset direction to 1”  
(negative).  
Example of [figure b]  
Let L = 50.0 0.01 mm  
Reference surface  
• Basic setup  
[Figure b]  
Set up according to the requirement.  
• Function setup  
1. Segment = 1  
2. Number of scans for averaging = 512  
3. GO/NG judgment  
a. Lower limit = 49.99 mm  
b. Upper limit = 50.01 mm  
4. Offset  
a. Set to 50.0 mm.  
b. Direction = 1 (negative)  
• Measurement  
The ready state display appears as shown at the right  
before the offset is set.  
PROG  
Since the offset has not been set, the gap of segment 1  
is measured.  
GO +NG  
GO +NG  
GO +NG  
RUN BUSY  
RUN BUSY  
RUN BUSY  
-NG  
Set the offset to 50.0 mm. The measurement value is  
also replaced by 50.0 mm.  
As the gap measurement is selected, set here the  
negative direction (1).  
PROG  
-NG  
Press the  
key.  
PROG  
RUN  
is displayed and single-run measure-  
ment starts.  
After the first measurement interval the measured value  
is displayed, and the GO/NG judgment result is output-  
ted.  
-NG  
5 - 10  
No. 99MBC071A  
5. MEASUREMENT MODE  
3. Applied measurement with the zero-set function  
Guide roller  
Use the zero-set function to easily measure a  
tape thickness.  
T
First measure segment 1 (W0) after removing  
the tape from the guide roller, which is used  
as a reference gage.  
Set the tape as the measurement objective on  
the guide, then measure segment 1 (W). The  
tape thickness (T) is obtained from: T = (W0  
- W)  
Segment 1  
[figure c]  
W
W0  
Reference Piece  
For this measurement use the zero-set  
function.  
Convert (zero-set) W0 to 0.0 mm and set the direction as 1 (negative). The following results:  
T = {W0 - (-W)} = 0.0 - (-W) = W  
Here is an example of measuring a tape with a thickness of T = 0.1 0.005 mm.  
• Basic setup  
Set up as required.  
• Function setup  
1. Segment = 1  
2. Number of scans for averaging = 128  
3. GO/NG judgment  
a. Lower limit = 0.095 mm  
b. Upper limit = 0.105 mm  
• Measurement  
Remove the tape and offset (zeroset) with 0.0.  
Then set up the tape.  
PROG  
The tape thickness will be displayed, however, GO/NG  
judgment is not performed.  
GO +NG  
RUN BUSY  
-NG  
Press the  
key.  
PROG  
C.RUN  
is displayed and continuous-run  
measurement starts.  
GO +NG  
RUN BUSY  
-NG  
At every measurement interval the measured data is  
displayed, and the GO/NG judgment result is outputted.  
PROG  
Press the  
key or  
key.  
C.RUN  
RUN  
The most recent measurement is displayed, and mea-  
surement is stopped.  
GO +NG  
RUN BUSY  
-NG  
No. 99MBC071A  
5 - 11  
5.3.4 Sample measurement  
In addition to the diameter, a roller in a paper-  
feed mechanism requires a high machining  
accuracy with respect to both the roundness and  
cylindricity.  
Knife-edge  
Segment 1  
Runout: T  
In this example suppose that the roller is being  
turned to measure the runout.  
In the diagram at the right the roller is  
turning, and the gap of segment 1 is mea-  
sured to determine the runout of T while  
segment 2 is measured to determine the  
diameter.  
Segment 2  
This runout can be derived from the range  
(maximum - minimum) of sample measurements.  
Segment 3  
In this example a knife-edge is used for stable  
gap measurement, however, a round pin can  
also be used if appropriate.  
Here is an example of measuring a rubber roller with a diameter of ø25.0 0.05 mm and a  
runout tolerance of T = 0.03 mm.  
• Basic setup  
Specify simultaneous measurement.  
• Function setup  
Setup item  
Segment  
Program0 (Foreground)  
Program5 (Background)  
1
2
Number of scans for  
averaging  
32  
32  
Lower limit value  
Upper limit value  
Number of sample  
0.0  
24.95  
25.05  
50  
0.03  
50  
range  
Statistical item  
mean  
(maximum value - minimum value)  
NOTE: The rubber roller must be turned more than 360 degrees. Number of scans for averaging is determined  
from the revolution speed and the sample number.  
5 - 12  
No. 99MBC071A  
5. MEASUREMENT MODE  
• Measurement  
In the ready state the gap dimension of segment 1 is  
displayed.  
PROG  
GO +NG  
GO +NG  
GO +NG  
RUN BUSY  
RUN BUSY  
RUN BUSY  
-NG  
Press the  
ment starts.  
key to start the measurement.  
is displayed and the sample measure-  
PROG  
RUN  
-NG  
In this example the measurement result will be dis-  
played and the GO/NG judgment result will be output  
approximately 2 second after measurement starts.  
PROG  
-NG  
No. 99MBC071A  
5 - 13  
5.3.5 Applied measurement with automatic workpiece detection  
If a workpiece of the specified range of dimension enters the measuring region, measurement  
will be automatically started.  
L
a
b
(a)  
(b)  
(c)  
(n)  
D
Workpiece flow V mm/s  
0.0015  
D = 5.0  
mm, L = 12 mm, chamfer a = 0.5 mm, b = 0.5 mm, and V = 50 mm/s.  
• Basic setup  
Select the diameter detection method for automatic workpiece detection, and specify 16 for  
the detecting speed (number of scans).  
• Function setup  
1. Segment = 2  
2. Number of scans for averaging = 256  
Set to the maximum value of (Measurement interval) < (L- 2a) / V.  
3. GO/NG judgment  
a. Lower limit = 4.9985 mm  
b. Upper limit = 5.0015 mm  
4. Analog output  
a. Reference value = 5.0 mm  
b. Scale value = 1  
To be set if used.  
5. Automatic workpiece detection  
a. Number of measurements n = 1  
b. Invalidation period t = 50 ms  
t > (a / V)  
c. Lower detection limit L = 4.9 mm  
Set using the dimension excluding the chamfered portion.  
d. Upper detection limit H = 5.1 mm  
NOTE About automatic workpiece detection  
If sequentially fed workpieces have a small chamfer and they are almost in contact,  
workpieces may not be clearly identified. If this is the case, use connection rods, for  
example, for adequate intervals.  
In addition, allow a sufficient margin for the invalidation period and upper and lower  
detection limits.  
5 - 14  
No. 99MBC071A  
5. MEASUREMENT MODE  
• Measurement  
The diagram at the right indicates that no workpiece is  
present in the measuring region in the ready state.  
PROG  
GO +NG  
RUN BUSY  
-NG  
Press the  
key to start continuous measurement  
PROG  
C.RUN  
while changing the display from “  
to  
.If workpiece (a) enters the measur-  
ing region, diameter measurement will automatically be  
started.  
GO +NG  
RUN BUSY  
-NG  
If the diameter measurement resulting from 16 scans is  
within the preset limits, a workpiece is judged as being  
present (workpiece present). The system waits until  
the specified invalidation period elapses.  
After the invalidation period elapses, diameter measure-  
ment of workpiece (a) is started. At every measurement  
interval the measured data will be displayed and the  
GO/NG judgment results will be output.  
PROG  
GO +NG  
RUN BUSY  
-NG  
Measurement of workpiece (b) entered.  
As with workpiece (a) measurement is performed and  
the results are displayed.  
PROG  
GO +NG  
RUN BUSY  
-NG  
Workpieces that enter the measuring region are mea-  
sured sequentially.  
PROG  
GO +NG  
RUN BUSY  
-NG  
To terminate measurement, press the  
key or  
PROG  
RUN  
key again.  
C.RUN  
The most recently measured data will be displayed.  
GO +NG  
RUN BUSY  
-NG  
No. 99MBC071A  
5 - 15  
5.3.6 Applied measurement on a stepped round bar  
øA  
øB  
In this example 10 stepped round bars are measured  
and the results are statistically processed. If NG  
measurement is obtained, it will be automatically  
printed out.  
In the figure at the right suppose the following:  
øA: ø6 0.01 mm  
øB: ø10h70-0.015 mm  
• Basic setup  
1. Set the resolution to 0.1 µm.  
2. Specify the RS-232C port as the printer port.  
• Function setup  
Setup item  
Segment  
Program0 (Foreground)  
Program1 (background)  
2
2
Number of scans for  
averaging  
512  
512  
Lower limit value  
Upper limit value  
Data output condition  
Other condition  
5.99  
6.01  
2
9.985  
10.0  
2
0 (cancel)  
0 (cancel)  
• Preparation for measurement  
Press the and  
/
keys to clear all of the statistical memory, then press the  
SHIFT  
A.CL M.CL  
/
key to start statistical processing. If the statistical processing mode is entered,  
STAT S.E  
the S.E. guidance indicator ( ) turns on.  
• Measurement  
PROG  
Perform a single-run measurement for the A dimension  
by program No.0 after setting the workpiece in place.  
The measured data will be displayed and the GO/NG  
judgment result will be outputted.  
GO +NG  
RUN BUSY  
-NG  
Change to Program No.1 for the B dimension to be  
measured through single-run measurement.  
The measured data will be displayed and the GO/NG  
judgment result will be outputted.  
PROG  
GO +NG  
RUN BUSY  
-NG  
Change the workpiece and repeat the same measure-  
ments.  
PROG  
GO +NG  
RUN BUSY  
-NG  
If the result is NG, it will be automatically printed out.  
PROG  
GO +NG  
RUN BUSY  
-NG  
5 - 16  
No. 99MBC071A  
5. MEASUREMENT MODE  
• Confirming the statistical data on the display (not always required)  
Press the  
and  
/
keys in the ready state  
PROG  
SHIFT  
STAT S.E  
to enter the statistical display mode for Program No.0.  
If this mode is entered, the number of samples is  
displayed first.  
GO +NG  
RUN BUSY  
-NG  
Each time the  
key is pressed, the statistical processing item changes in the following  
ENT  
order: Number of samples: Standard deviation:  
Maximum value:  
Minimum value:  
Mean:  
Range: Number of samples:  
.
Press the and  
/
keys to return to the  
PROG  
SHIFT  
STAT S.E  
ready state, and confirm the statistical data of Program  
No.1 in the same way.  
GO +NG  
RUN BUSY  
-NG  
• Printing the statistical data  
Use the  
and  
/
keys to print out the statistical data. This automatically  
SHIFT  
S.PR PRINT  
clears all of the statistical memory after printout.  
An example printout is shown below.  
An example printout  
P:0  
P:1  
P:0  
P:1  
-NG  
-NG  
+NG  
+NG  
5.989,9  
9.984,9  
6.010,1  
10.000,1  
STAT. DATA  
PROGRAM NO.  
N
= 0  
10  
AVG  
MAX  
MIN  
R
6.003,2  
6.010,4  
5.989,9  
0.020,5  
0.007,85  
S.D  
STAT. DATA  
PROGRAM NO.  
=
1
N
10  
AVG  
MAX  
MIN  
R
9.993,6  
10.000,1  
9.984,9  
0.015,2  
0.006,99  
S.D  
No. 99MBC071A  
5 - 17  
MEMO  
5 - 18  
No. 99MBC071A  
INTERFACE UNIT  
This chapter describes the setup method and functions provided with the  
I/O analog interface and RS-232C interface of this unit.  
6
6.1 Standard Interface  
6.1.1 I/O Analog Interface  
Below is a description of the I/O analog output interface.  
This interface is used to communicate with a PC, programmable controller, or relay circuitry  
by means of sequential signals. Since it can also capable of analog output, which may be  
used for feedback controls and continuous recording of workpiece deviations.  
6.1.1.1 External view of the connector  
A1  
A6  
Open the protection cover of the terminal block to access  
to the terminals. At your wiring use the supported signal-  
name seals that correspond to each terminal number for  
identification.  
A1  
A2  
A3  
A4  
A5  
A6  
B1  
B2  
B3  
B4  
B5  
B6  
B6  
B1  
No. 99MBC071A  
6 - 1  
6.1.1.2 Terminal names  
Terminal No. Signal name  
Function  
Frame ground (connected to the casing)  
I/O direction  
A1  
A2  
A3  
FG  
STS  
GO  
Used for connecting the shielded wire of I/O signal cables  
Output of measurement condition (status)  
Turned out “H” level in the event of “Err-0”  
Out  
Out  
• GO/NG judgment result output (GO)  
• With the basic setup, this can be changed to strobe signal (STB) or  
measurement in-progress signal (ACK) output.  
A4  
A5  
A6  
+NG  
–NG  
GND  
GO/NG judgment result output (+NG)  
GO/NG judgment result output (-NG)  
Out  
Out  
Out  
GND Digital ground  
Common ground terminal of both output (A2 thru A5) and input (B4 thru B6)  
B1  
FG  
Frame ground (connected to the casing)  
Used for connecting the shielded wire of I/O signal cables  
B2  
B3  
B4  
ALG  
0V  
Analog voltage output  
Out  
Out  
In  
0V output of analog voltage output  
OFFS  
Offset input  
Can be changed to hold (HOLD) by the basic setup.  
B5  
B6  
RUN  
RES  
Input of trigger command of single-run measurement  
Can be changed to a trigger for continuous-run measurement or  
continuous-run measurement with term specification by the basic setup.  
In  
In  
C
• Input of CLEAR command, same as the  
key  
6.1.1.3 Input/output equivalent circuit  
(1) Input circuit  
2.7K  
Connected to the inside (+24V)  
Input signal  
(OFFS, RUN, RES)  
Input low-level signals between 0 and 1 V. Generally drive this circuit with an open  
collector-type transistor.  
Maximum current drawn from the input signal terminal is 12 mA.  
6 - 2  
No. 99MBC071A  
6. INTERFACE UNIT  
(2) Output circuit  
1. Control output  
51Ω  
Output signal  
(GO, -NG, +NG, STS)  
GND  
• Maximum rating of the output transistor is 30 V, 50 mA.  
2. Analog output  
560Ω  
ALG  
0V  
• The output voltage range is 5V.  
• The accuracy of the analog voltage output is 0.2% of full-scale range.  
• This analog output should be connected to a device that has an input impedance of 1 M  
or greater.  
If the input impedance is low, the output accuracy will be reduced due to the internally  
provided resistance of 560 .  
TIP 1. If “Err-0” (specified workpiece not present) occurs, the following remedies are  
taken:  
NG and GO signals are turned OFF if this error occurs.  
• Single-run measurement and zero-run measurement will be terminated without  
outputting the results.  
• During continuous-run measurement or continuous-run measurement with term  
specification ACK remains ON. The measurement can be resumed after “Err-0” is  
rectified.  
2. Analog signals will be outputted from the following interfaces.  
• If a simultaneous measurement is carried out, the analog output of Program Nos.  
0 to 4 will be made via the standard interface, and that of Program Nos. 5 to 9 will  
be made via the Second Analog I/O Interface.  
No. 99MBC071A  
6 - 3  
TIP • In practice, do not make connections to the “GND” terminal for the control input  
and “0V” terminal for analog output. Otherwise, this system may result in an  
operation error due to electrical interference or other problems.  
• Always use a shielded-wire analog I/O cable. If the cable does not have a shield-  
ing net, the system may experience electrical interference resulting in operation  
errors. Or, radio frequency will be emitted from this system and interfere the  
electrical equipment such as TVs, etc.  
Use the following diagram for fabricating the cable.  
Signal lines  
Shielding wire  
To FG  
Observe the following precautions when relays are used for control circuits. Use  
the following diagram when designing the control circuit.  
1. Several kV of current may be induced the moment the relay is turned OFF,  
which may cause relay-driven components to be damaged. Or, the induced  
voltage may cause the system to malfunction. Always insert protective compo-  
nents such as diodes in the circuit.  
2. To drive equipment that operates on alternative current, always implement a  
protective circuit (spark killer) to protect the relay contacts. In general, if the  
current load is caused by induction, add protective circuit (A) or (B).  
3. Refer to the manual of each relay for selection. It describes the method of  
calculating the protection circuit (or selection of protective parts) depending on  
the load.  
+24V  
R1  
GO/NG judgment result output  
R2  
Q1  
D1  
K
Load  
K
(A)  
(B)  
GND  
0V  
Recommended values:  
Suppose that the sensitivity of a relay is 50 mA, the following design is recom-  
mended:  
R1: 4.7 k , R2: 4.7 k  
Q1: 2SA953 (Manufacturer: NEC, etc.)  
D1: 10D10 (Manufacturer: Japan Inter, etc.)  
6 - 4  
No. 99MBC071A  
6. INTERFACE UNIT  
6.1.1.4 Timing chart  
• Single-run measurement  
TIN  
RES  
RUN  
ACK  
STB  
T
W
TIN  
TAD  
TBO  
TSO  
TAD  
TDO  
GO, NG  
• Zero-run measurement  
RES  
RUN  
TIN  
TIN  
TRA  
TAD  
ACK  
TSO  
STB  
TDO  
GO, NG  
• Continuous-run measurement  
RES  
TIN  
TIN  
RUN  
TAD  
TRA  
TSO  
ACK  
TBO  
TBC  
TBC  
STB  
TSO  
TSO  
TDO  
GO, NG  
• Continuous-run measurement with term specification  
RES  
RUN  
TRA  
ACK  
TBO  
TBC  
TBC  
TSO  
TSO  
TSO  
STB  
TAD  
TDO  
GO, NG  
No. 99MBC071A  
6 - 5  
• Output in the ready state (if the basic setup is determined to enable output in the ready  
state)  
RES  
RUN  
ACK  
TBD  
STB  
TSO  
TSO  
TDO  
TDO  
GO, NG  
HOLD  
TDO or more  
• Response time  
Signal  
Response time  
Description  
TIN  
TAD  
TSO  
10 ms or more  
10 ms or less  
Input time  
Acceptance time  
Strobe length  
Depends on the number of scans for averaging  
(Refer to the following table.)  
TW  
TDO  
TRA  
TBO  
10 ms or more  
115 µs  
Data setup time  
20 ms or less  
Termination time  
(Measurement interval) x n + 10 ms or less  
n = Number of samples  
Single-run measurement  
TBC  
TBD  
(Measurement interval) x n + 5 ms or less  
(Measurement interval) + 5 ms or less  
Duration of continuous-run measurement  
Duration of ready state  
• Strobe length: TSO  
Number of scans for averaging  
1 ~ 8 times  
Strobe length  
0.3 0.1 ms  
0.2 ms  
20 0.2 ms  
16 ~ 128 times  
2
256 ~ 2048 times  
• Other  
1. Use negative-true logic pulses of 10 ms or more for the input signals.  
2. RES signal clears the previous measurement result and interrupts the measuring  
operation.  
3. Simultaneous input of multiple signals is not accepted.  
4. During measurement only RES, RUN or HOLD signals are accepted.  
5. For information about the measurement intervals that correspond to each of the  
scannings refer to Section 4.5.3.2, “F1: Setting the measurement interval (measurement  
time)”.  
NOTE 1. Zero-run measurement is enabled only if the RUN input is set to trigger single-run  
measurement in the basic setup.  
2. Input of each signal can not be accepted unless it meets the requirement of TIN.  
3. Output signals are ensured with a built-in resistance load of 2.2 k .  
4. While the HOLD signal is true, the GO, NG, STB and analog output signals are  
held without being updated.  
6 - 6  
No. 99MBC071A  
6. INTERFACE UNIT  
6.1.2 RS-232C Interface  
The standard RS-232C interface of this Display Unit allows the LSM to communicate with  
external devices via RS-232C (EIA standard) serial signals.  
Prior to using this interface , set up the baud rate, data bits, and parity check, etc. according  
to Section 4.1, “Basic Setup”. The setting contents must be compatible to that on the external  
device to be connected.  
6.1.2.1 Specifications  
• Applicable plug connector: D-sub 9 pin (Female) (Manufacturer: AMP, HD-20/747951-1)  
or equivalent.  
1
5
The pin numbering for this system is shown at the left  
6
9
• Communication specifications  
Device definition  
Communication method  
Synchronizing method  
Baud rate  
Specify the LSM as a terminal (DTE)  
Full-duplex  
Start/stop method (asynchronous)  
1200, 2400, 4800, 9600, 19200 bps  
Transmission code  
Data bits  
ASCII  
7 or 8 bits  
1 bit  
Start bit  
Data configuration  
Stop bit  
1 bit  
Parity check  
Delimiter  
None, odd, or even  
CR+LF, CR, LF  
NOTE 1. The shaded settings are the factory defaults.  
2. In the above table none paritycan not be selected if the data bits are 7 bits in  
length. In this case, set the parity to either odd or even, or set the data bits to 8  
bits.  
TIP 1. DTR and RTS signals from the LSM will be ON immediately after power on.  
2. DSR signals to the LSM are always ignored.  
3. The transmitter-receiver inside the LSM uses a µPD4723 (Manufacturer: NEC).  
No. 99MBC071A  
6 - 7  
6.1.2.2 Connections  
(1) Connecting the RS-232C interface to a device specified as a terminal (DTE)  
Example 1 Flow control method (handshake method controlled by CTS, DSR, DTR, and RTS signals)  
LSM: specified as a terminal (DTE)  
Personal computer (PC-AT compatible)  
specified as a terminal (DTE)  
Signal name  
Pin No.  
Pin No.  
Signal name  
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
DCD  
RxD  
TxD  
DTR  
SG  
RxD  
TxD  
DTR  
SG  
DSR  
RTS  
CTS  
RI  
DSR  
RTS  
CTS  
9-pin D-sub  
9-pin D-sub  
Example 2 Flow control method (handshake method controlled by CTS, DSR, DTR, and RTS signals)  
Personal computer (PC-9801)  
specified as a terminal (DTE)  
LSM: specified as a terminal (DTE)  
Signal name  
Pin No.  
Pin No.  
Signal name  
1
2
1
2
3
4
5
6
7
8
9
FG  
TxD  
RxD  
RTS  
CTS  
DSR  
SG  
RxD  
TxD  
DTR  
SG  
3
4
5
6
DSR  
RTS  
CTS  
7
8
DCD  
DTR  
20  
25-pin D-sub  
9-pin D-sub  
Example 3 3-Wire method (teletype protocol using TxD, RxD and SG)  
Personal computer (PC-AT compatible)  
specified as a terminal (DTE)  
LSM: specified as a terminal (DTE)  
Signal name  
Pin No.  
Pin No.  
Signal name  
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
DCD  
RxD  
TxD  
DTR  
SG  
RxD  
TxD  
DTR  
SG  
DSR  
RTS  
CTS  
RI  
DSR  
RTS  
CTS  
9-pin D-sub  
9-pin D-sub  
6 - 8  
No. 99MBC071A  
6. INTERFACE UNIT  
(2) Connecting the RS-232C interface to a device specified as a modem (DCE)  
Example 1 Flow control method (handshake method controlled by CTS, DSR, DTR, and RTS signals)  
Device specified as a modem (DCE)  
LSM: specified as a terminal (DTE)  
Signal name  
Pin No.  
Pin No.  
Signal name  
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
DCD  
RxD  
TxD  
DTR  
SG  
RxD  
TxD  
DTR  
SG  
DSR  
RTS  
CTS  
RI  
DSR  
RTS  
CTS  
9-pin D-sub  
9-pin D-sub  
Example 2) DPU-414: Printer (controlled by RTS signal)  
The DPU-414 series printer (Manufacturer: Seiko Electronics Co., Ltd.) should  
be connected as follows:  
DPU-414 series printer  
LSM: Defined as terminal (DTE)  
Signal name  
Pin No.  
Pin No.  
Signal name  
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
TxD  
RxD  
*1  
RxD  
TxD  
DTR  
SG  
SG  
*1  
DSR  
RTS  
CTS  
RTS  
9-pin D-sub  
9-pin D-sub  
*1: Pin Nos. 4 and 6 of the printer-side connector are internally connected.  
*2: Possible to use a straight-type cable (In this case, it is not necesary to install wirings  
shown by the dotted lines) .  
IMPORTANT 1. The signals names and pin assignment described here may be different from that  
of the users devices. Refer to the users manual of your own device when  
making connections.  
2. For this connection always use cables that have a shielding net. Both ends of this  
shielding net should be connected (grounded) to the RS-232C connector case.  
Without using a shielded-wire this system may experience electrical interference  
resulting in operation errors. Or, radio frequency will be emitted from this system  
and interfere the electrical equipment such as TVs, etc.  
No. 99MBC071A  
6 - 9  
6.1.2.3 Printer interface  
• Depending on the basic setup the RS-232C port can be used as a printer port.  
• The applicable printer is a DPU-414 series manufactured by Seiko Electronics, Co., Ltd.  
Refer to the printer manual and establish the communication settings compatible to this  
instrument.  
Since this instrument is subjected to the following restrictions, select the optimal condi-  
tions on the printer side.  
1. Communication speed (baud rate)  
Set to 9600 bps. Select as much as possible 9600 bps, which is the factory setting, even  
though the supported speeds are from 1200 to 19200 bps.  
2. Line control  
On this instrument XON/XOFF control can not be used. Select the H/W BUSY control  
on the printer.  
3. Print mode  
On this instrument the output is made in a format of 40 columns/line. Always select the  
normal print mode (40 columns/line) on the printer.  
4. Setup command  
This can not be used on this instrument.  
5. International alphabet code  
This instrument always outputs ASCII codes.  
• The GP-IB interface can also be used at the same time.  
6.1.2.4 RS-232C/GP-IB commands  
• On this instrument either one of the RS-232C or GP-IB interfaces can be used. This  
selection must be made in the basic setup.  
• For the descriptions about the GP-IB interface refer to Section 6.2.4 "GP-IB Interface".  
The SRQ status bytes of GP-IB are that follow:  
bit7  
0
bit6  
RSV  
RSV  
RSV  
bit5  
0
bit4  
0
bit3  
0
bit2  
bit1  
0
bit0  
In the event of OK  
0
0
In the event of ERx  
0
0
0
1
Error No.  
GO  
In the event of data response  
0
0
1
0
NG  
1
RSV: Set to “1” according to a service request.  
NG: Set to “1” according to a NG measurement  
GO: Set to “1” according to a GO measurement  
• This section describes the reception commands used by the RS-232C and GP-IB interfaces  
and the response (transmission) commands that correspond to the reception commands.  
The data section of each command consists of ASCII codes.  
• The GP-IB commands includes additional “SRQ”, “NSRQ”, and “PR” commands.  
• Use the following command subscriptions, symbols and supplement descriptions when you  
read Section 6.1.2.5 “List of commands”.  
6 - 10  
No. 99MBC071A  
6. INTERFACE UNIT  
• Command symbols  
Meaning  
Symbol  
Entry of numeral  
sssssss  
aaa-bbb  
Segment number  
Start edge and finish edge of the edge specification  
aaa: Start edge, bbb: Finish edge  
Combination using numbers between 1 and 7  
Select a number between 1 and 255  
However, aaa should not be identical to bbb.  
ddd.dddd  
Setup data or measured data  
Maximum of 7 significant digits  
Select a number between 0 and 9  
Select a number between 1 and 4  
Select a number between 1 and 3  
Select a number between 0 and 9  
Select a number between 0 and 999  
Select a number between 0 and 9999  
Select a number between 0 and 999  
Select a number between 1 and 999  
2n(select between n=0 and 11)  
p
m
c
Program Number  
Measurement interval number  
Analog output scale number  
r
Data output condition  
Periodical output timer value (sec)  
Invalidation period of automatic workpiece detection (msec)  
Number of measurement times of sample measurement  
Number of measurement times of automatic workpiece detection  
Number of scans for averaging  
ttt  
tttt  
nnn  
mmm  
nnnn  
nn  
Group size subject to judgment  
Select a number between 0, 1, 2 and 99  
Space character  
TIP 1. To ensure compatibility with the LSM-6900 Display Unit, this system ignores the  
following commands without treating them as ER6, but uses OK.  
Memory switch command (UP0 uvxyz, UP1 uvxyz, UP2 uvxyz)  
The MNL command is assumed to be identical to the MNH command.  
2. If the setup data is 0, it allows the corresponding function to be disabled. To set  
0as a numerical value, use 0.0.  
Example 1 SET, OF0................... Offset function is disabled.  
Example 2 SET, OF0.0................ Offset function is enabled.  
3. Setup data or measured data is denoted by ddd.dddd.  
The first (most significant) digit is a sign. For commands that do not specifically  
designate the polarity, such as the calibration command, only a positive sign is  
accepted. However, these positive signs do not have to be specified.  
Any decimal place is selectable.  
An integer can be entered without using a decimal point.  
4. For making the setup operation of the measurement interval easier, use the  
measurement interval number as shown below. For the correspondence between  
the actual number of scans and the measurement interval numbers see the table  
below.  
Measurement interval number  
Measurement interval  
0.02 sec  
Number of scans for averaging  
1
2
3
4
16 times  
64 times  
256 times  
512 times  
0.08 sec  
0.32 sec  
0.64 sec  
5. Ppcommand can be appended to the following commands to be treated as a  
single command: SET, R, CR, STAT, RP.  
Example: P0, R  
P6, STAT  
No. 99MBC071A  
6 - 11  
6.1.2.5 List of commands  
Reception command  
Item  
Response command  
GP-IB SRQ status byte  
0RSV000000  
LSM clear  
CL  
OK  
OK  
Metric (mm) unit system  
E (inch) unit system  
MM  
E
0RSV000000  
Program number change  
Pp  
OK  
OK  
0RSV000000  
0RSV000000  
Calibration  
HIGH CAL set  
LOW CAL set  
HC+ddd.dddd  
LC+ddd.dddd  
Segment  
Segment specification  
Edge specification  
SG sssssss  
SG aaa-bbb  
OK  
OK  
0RSV000000  
0RSV000000  
Setting the measurement  
interval number  
Measurement interval  
number at arithmetical  
average  
Mm  
Number of scans for  
averaging at arithmetical  
average  
MN nnnn  
Measurement interval  
number at arithmetical  
average  
Measurement interval  
number at moving average  
MS m  
OK  
0RSV000000  
Number of scans for  
averaging at moving  
average  
MNH nnnn  
Storage of measuring conditions  
STR  
OK  
0RSV000000  
0RSV000000  
0RSV000000  
0RSV000001  
0RSV000000  
Key lock  
LOCK  
UNLOCK  
RP  
OK  
Releasing key lock  
OK  
Request of measuring conditions list  
Setting the measuring conditions  
(RP FORMAT)  
OK  
SET  
,SG sssssss  
,SG aaa-bbb  
Segment specification *1  
Edge specification  
,Mm  
Measurement interval number at arithmetical  
average  
,MN nnnn  
Number of scans for averaging at arithmetical  
average  
,MS m  
,MNH nnnn  
Measurement interval number at moving average  
Number of scans for averaging at moving average  
,EL ddd.dddd  
,EH ddd.dddd  
,CNT aaa  
Lower abnormal limit *1  
Upper abnormal limit  
Count value  
,LL ddd.dddd  
,LH ddd.dddd  
Lower limit  
Upper limit  
*1  
,L1 ddd.dddd,  
,L6 ddd.dddd  
,
Multi-limit selection value  
,N ddd.dddd  
,LO ddd.dddd  
,UP ddd.dddd  
Target value  
Lower tolerance limit  
Upper tolerance limit  
,REF ddd.dddd  
,SCL c  
Reference value *2  
Scale value  
,OF ddd.dddd  
,OM ddd.dddd  
,ZERO+  
Positive offset  
Negative offset  
Positive zero-set  
Negative zero-set  
,ZERO  
6 - 12  
No. 99MBC071A  
6. INTERFACE UNIT  
Reception command  
Item  
Response command  
GP-IB SRQ status byte  
,PR r  
OK  
0RSV000000  
Data output conditions  
,PRT ttt  
Periodic data output conditions  
Periodic output timer  
,SMP nnn  
Number of sample measurements  
Setting the statistical item for sample measurement  
(Maximum value, minimum value, range, mean)  
,(MAX,MIN,RNG,AVG)  
,GN nn  
Group sizes subject to judgment  
*1  
,GLL ddd.dddd  
,GLH ddd.dddd  
Lower tolerance limit for group judgment  
Upper tolerance limit for group judgment  
Statistical item for group judgment  
,(GMX,GMN,GAG,GRG)  
(Maximum value, minimum value, mean, range)  
Start of single-run measurement  
R
(DATA FORMAT)  
0RSV010NGGO1  
0RSV010NGGO1  
Continuous-run  
measurement  
Measurement start  
command  
CR  
(DATA FORMAT) *3  
Measurement stop  
command  
CL  
OK  
0RSV000000  
Zero-run measurement  
Measurement start  
command  
Measurement stop  
command  
R
No response command  
(DATA FORMAT)  
STOP  
0RSV010NGGO1  
Request of measurement data  
D
(DATA FORMAT)  
OK  
0RSV010001  
0RSV000000  
Statistical processing  
calculation  
Performs statistical  
processing  
ST  
Does not perform  
statistical processing  
NST  
OK  
OK  
Erasing the statistical  
processing memory  
Current program only  
All programs  
MC  
0RSV000000  
MCAL  
STAT  
Request of statistical processing results  
(STAT FORMAT)  
OK  
0RSV000001  
0RSV000000  
Condition setting of automatic workpiece detection *1  
Number of measurement times  
Invalidation period  
AUT  
,N mmm  
,D tttt  
,L ddd.dddd  
,H ddd.dddd  
Lower detection limit  
Upper detection limit  
Automatic workpiece detection control *1  
AUT, S  
RA  
OK  
0RSV000000  
0RSV000001  
Request of conditions list for automatic workpiece *1  
detection  
(RA FORMAT)  
GP-IB  
*4  
Output to printer.  
Perform service request.  
Do not perform service request.  
PR  
SRQ  
NSRQ  
OK  
OK  
0RSV000000  
0RSV000000  
I/O timing signal  
ER7  
0RSV001111  
*1: Designating any command of the functions which are set to “Not used” in the basic setup will result in ER6.  
*2: If “Copying the target value to the reference value” is specified in the basic setup, designating this command results in ER6.  
*3: Responds with measurements according to the data output conditions.  
*4: Results in ER6 on the RS-232C.  
No. 99MBC071A  
6 - 13  
6.1.2.6 List of response commands if an error occurs  
Response command GP-IB SRQ status byte  
Description  
ER0  
A workpiece is not present in the specified segment.  
• A workpiece is not set properly.  
• Shutter is closed.  
0RSV001000  
ER1  
ER2  
ER5  
0RSV001001  
0RSV001010  
0RSV001101  
All setup data are initialized (cleared) when the power is ON.  
A numeric value greatly different from the reference gage dimension is set.  
• Limit values for go/no-go judgment and abnormal data exclusion have been set in reverse  
order or equal.  
• Input value is too large.  
ER6  
An unavailable command is received.  
• Command format is incorrect.  
0RSV001110  
0RSV001111  
• Baud rate and/or data bits are not consistent.  
ER7  
ER9  
Message from the external device  
• Measurement is interrupted by signal input from key operation or I/O interface.  
Parity error occurred.  
• Check the setup contents in the basic setup.  
• Isolate the cables from noise sources.  
6 - 14  
No. 99MBC071A  
6. INTERFACE UNIT  
6.1.2.7 Format of response commands  
1) (DATA FORMAT): Data format (maximum 38 characters)  
Pp, (GO/NG judgment result) ddd.dddd (, deviation)  
a. Where the GO/NG judgment is active, GO/NG judgment result (-NG, OK or +NG) will  
be appended.  
b. Where the reference value is set, a deviation (, DEV ddd.dddd) is appended.  
This deviation value is derived from (Measured data - Reference value).  
c. In the simultaneous measurement the foreground measurement is followed by the  
background measurement after a comma (,) is inserted between them.  
2) (RP FORMAT): Report format (maximum 107 characters)  
PROGRAM, Pp, SG sssssss, Mm, LL ddd.dddd, LH ddd.dddd, REF ddd.dddd, SCLc,  
OF ddd.dddd, PR r, PRTttt, SMPnnn, AVG, ST  
• A maximum of 107 characters will result from the above described specification, however,  
it varies depending on the setup.  
a. A maximum of 5 characters are to be added if the number of averages is specified.  
b. A maximum of 8 characters are to be added if (target value + tolerance) is specified.  
c. A maximum of 52 characters are to be added if the multi-limit selection is specified.  
d. A maximum of 32 characters are to be added if the abnormal value eliminating function  
is specified.  
Between MM and LL “EL ddd.dddd, EH ddd.dddd, CNTaaa” is inserted.  
e. On the GP-IB, SRQ (or NSRQ), LOCAL (or REMOT) is added after ST depending on  
the operation mode.  
• Available symbols may change depending on the setup contents.  
a. SG sssssss  
b. Mm  
SG aaa-bbb  
Mnnnnn, Msm or MNHnnnn  
c. LL ~ LH ddd.dddd N ddd.dddd, LO ddd.dddd, UP ddd.dddd  
L1 ddd.dddd, .................. , L6 ddd.dddd  
e. OF ddd.dddd  
f. AVG  
g. ST  
OM ddd.dddd  
MAX, MIN or RNG  
NST  
3) (STAT FORMAT): Statistical data format (maximum 86 characters)  
STAT DATA, Pp, Nnnnnnn, AVG ddd.dddd, MAX ddd.dddd, MIN ddd.dddd,  
RNGddd.dddd,S.Dddd.dddd  
• “nnnnnn” implies the number of statistical data pieces, which is maximum 100,000. Data  
pieces that exceed this limit will be excluded from the statistical data.  
4) (RA FORMAT) : Data format for automatic workpiece detection (maximum 36 characters)  
AUT, Nmmm, Dtttt, L ddd.dddd, H ddd.dddd  
TIP 1. The integer section of ddd.ddddwill be zero-suppressed.  
2. The “ ” section will be -if the value is negative, and will be removed (the follow-  
ing digits are left-flushed) if the value is positive.  
No. 99MBC071A  
6 - 15  
6.1.2.8 Other commands  
1) Each of the D, R, and CR commands can be appended with an “N”.  
If appended with an “N”, each program number will be removed from these commands.  
Item  
Reception command  
Data request  
DN  
Single-run measurement (zero-run measurement)  
Continuous-run measurement  
RN  
CRN  
Example: “D” “P0, 12.3456” : Appended with a program number  
“DN” “12.3456” : Program number is removed.  
2) Each of the D, R, CR, RP, STAT, and RA commands can be appended with an “*”.  
If appended with an “*”, these commands have a fixed data length that is not zero-sup-  
pressed.  
Item  
Reception command  
Data request  
*D  
*DN  
Single-run measurement (zero-run measurement)  
Continuous-run measurement  
*R  
*RN  
*CR  
*CRN  
Request of measuring conditions list  
*RP  
Request of statistical processing results  
*STAT  
*RA  
Request of automatic workpiece detection conditions list  
Example: “D” “P0, 12.3456” : Zero suppressed.  
“*D” “P0, +012.3456” : Outputted in 7 digits without zero suppressing.  
6 - 16  
No. 99MBC071A  
6. INTERFACE UNIT  
6.1.2.9 Details of command descriptions  
(1) CL  
(a) Format:  
CL  
(b) Description: Functions same as the  
key on the Display Unit.  
C
This releases the error state, performs single-run measurement, zero-run  
measurement, continuous-run measurement, and releases the measurement  
result display latch.  
(c) Example:  
(a) Format:  
Reception command  
Transmission command OK  
CL  
(2) MM, E  
MM  
E
(b) Description: MM: Sets the display unit to mm.  
E: Sets the display unit to E (inch).  
Reception command MM or E  
(c) Example:  
Transmission command OK  
(3)  
P
(a) Format:  
Pp (p: program number)  
(b) Description: Program number is changed to the specified one.  
(c) Example:  
Reception command  
P5  
Transmission command OK  
(4) HC, LC  
(a) Format:  
HC+ddd.dddd  
LC+ddd.dddd  
(b) Description: Calibrates the LSM.  
If the supplied gage is set in position and this command is executed, the  
proportion of the actually measured gage dimension to the entered value is  
calculated and the resultant constant is stored in memory, then the “OK”  
response will be issued. It requires approximately a second.  
(c) Example:  
Reception command  
Reception command  
HC24.0005 Transmission command OK  
LC 0.9995 Transmission command OK  
(d) Supplement: Negative setup data results in ER2  
No. 99MBC071A  
6 - 17  
(5) SG sssssss, SG aaa-bbb  
(a) Format:  
SG sssssss (sssssss: SEG No. Number of digits should be between 1 and 7.  
Duplicated number must not be specified.)  
SG aaa-bbb (aaa: start edge, bbb: finish edge. The range is between 1 and 255  
for both edges. However, aaa should not be identical to bbb.)  
(b) Description: Setting the segment (measuring position).  
Two types of setting are available; segment specification and edge specification.  
Reception command SG2 Response command OK  
Reception command SG2-65 Response command OK  
(c) Example:  
(d) Supplement: • Segments and edges should be set in the basic setup.  
• sssssss can be set with 7 digits or less.  
Ex.) SG 1234567, SG 24, SG3, etc.  
• aaa and bbb should be set within 3 digits.  
Ex.) SG1-2, SG 2-33, SG 111-255, etc.  
The order of the start edge and finish edge can be reversed.  
(6)  
M
(a) Format:  
M m (m: measurement interval number, 1 to 4)  
(b) Description: Set the averaging method to the arithmetical average, and set a number between  
1 and 4 for the representative measurement interval numbers. With these  
measurement interval numbers compatibility with the conventional models is  
ensured.  
(c) Example:  
Reception command  
Response command  
M4  
OK  
(d) Supplement: Relationship between the measurement interval number, measurement interval,  
and number of scans for averaging is as follows:  
Measurement interval number  
Measurement interval  
0.02 sec  
Number of scans for averaging  
1
2
3
4
16 times  
64 times  
256 times  
512 times  
0.08 sec  
0.32 sec  
0.64 sec  
(7) MN  
(a) Format:  
MN nnnn (nnnn: Number of scans, between 1 and 2048)  
(b) Description: Set the averaging method to the arithmetical average, and specify the number  
of scans to nnnn (2n, where n= 0 to 11).  
(c) Example:  
Reception command  
Response command  
MN 1024  
OK  
(8) MS  
(a) Format:  
MS m (m: Measurement interval number, between 2 and 4)  
(b) Description: Set the averaging method to the moving average, and specify a measurement  
interval number to ensure compatibility with conventional models.  
(c) Example:  
Reception command  
Response command  
MS4  
OK  
(d) Supplement: Relationship between the measurement interval number, measurement interval,  
and number of scans for averaging is as follows:  
6 - 18  
No. 99MBC071A  
6. INTERFACE UNIT  
Measurement interval number  
1st measurement interval  
2nd measurement interval  
Number of scans for averaging  
2
3
4
0.08 sec  
0.32 sec  
0.64 sec  
0.02 sec  
0.02 sec  
0.02 sec  
64 times  
256 times  
512 times  
(9) MNH  
(a) Format:  
MNH nnnn(nnnn: Number of scans, between 32 and 2048)  
(b) Description: Set the averaging method to the moving average, and specify the number of  
scans with nnnn. nnnn is 2n, where n= 5 to 11.  
(c) Example:  
Reception command  
Response command  
MNH 1024  
OK  
(d) Supplement: MNL command is as same as MNH command  
(10) STR  
(a) Format:  
STR  
(b) Description: Data that has been set by the RS-232C command will be erased from memory  
if the power is off. To retain the data after the power off, use this command to  
save the critical measuring conditions in memory. But the “ST” and “NST”  
command will not be saved.  
(c) Example:  
Reception command  
Response command  
STR  
OK  
(11) LOCK  
(a) Format:  
LOCK  
(b) Description: Locks the keyboard of this machine to prevent accidental operation.  
To release this key lock state, use the UNLOCK command.  
(c) Example:  
Reception command  
Response command  
LOCK  
OK  
(d) Supplement: Lock set by this command can not be released with key operation.  
(12) UNLOCK  
(a) Format:  
UNLOCK  
(b) Description: Releases the key lock state and enables key operations again.  
(c) Example:  
Reception command  
Response command  
UNLOCK  
OK  
(13) RP (RP FORMAT)  
(a) Format:  
RP  
(b) Description: This is used to confirm the setup contents, if the measuring conditions and  
operating conditions set are received as the response.  
(c) Example:  
Reception command  
Response command  
RP command  
PROGRAM, SG 2, M3, LL D 5.988, LH 6.010,  
REF6.000, SCL1, OF 0, PR 3, PRT0, SMP20, MAX,  
ST  
No. 99MBC071A  
6 - 19  
(14) SET  
(a) Format:  
SET  
Segment specification *1  
Edge specification *1  
, SG sssssss  
, SG aaa-bbb  
Measurement interval number at arithmetical average  
Number of scans for arithmetical average  
Measurement interval number at moving average  
Number of scans for moving average  
, M m  
, MN nnnn  
, MS m  
, MNH nnnn  
Lower abnormal limit *2  
Upper abnormal limit *2  
Abnormal count value *2  
, EL ddd.dddd  
, EH ddd.dddd  
, CNT aaa  
Lower limit *1  
Upper limit *1  
, LL ddd.dddd  
, LH ddd.dddd  
, L1 ddd.dddd  
, L2 • • • •  
, L6 ddd.dddd  
Multi-limit selection value *1  
Target value *1  
Lower tolerance limit *1  
Upper tolerance limit *1  
, N ddd.dddd  
, LO ddd.dddd  
, UP ddd.dddd  
Reference value *3  
Scale value  
, REF ddd.dddd  
, SCLc  
Positive offset *4  
Negative offset *4  
Positive zero-set *4  
Negative zero-set *4  
, OF ddd.dddd  
, OM ddd.dddd  
, ZERO+  
, ZERO–  
Data output condition *5  
Periodic data output timer  
, PRr  
, PRT ttt  
Number of sample measurements  
Sample measurement • Maximum value *6  
• Minimum value *6  
, SMP nnn  
, MAX  
, MIN  
• Range *6  
, RNG  
• Mean *6  
, AVG  
Group size subject to judgment *2  
, GN nn  
Lower tolerance limit of group judgment *2  
Upper tolerance limit of group judgment *2  
, GLL ddd.dddd  
, GLH ddd.dddd  
Statistical items for group judgment: Maximum value *2, 6 , GMX  
: Minimum value *2, 6 , GMN  
: Mean *2, 6  
: Range *2, 6  
, GAG  
, GRG  
(b) Description: This sets the measuring conditions.  
• Each of the commands that follow the SET command must be delimited by a  
comma (,).  
• A command which doesn’t need a setting change can be eliminated.  
• Approximately 0.5 second is required for this command to be processed.  
6 - 20  
No. 99MBC071A  
6. INTERFACE UNIT  
(c) Example:  
Reception command  
SET, SG2, M4, LL 5.988, LH 6.010, REF6.000,  
SCL1, OM 0, PR 3, PRT10  
*1: Select either setup method in the basic setup.  
*2: This is valid only if the function is specified in the basic setup.  
*3: This is valid only if the “Copying the target value to the reference value” is specified in  
the basic setup.  
*4: Set the reference gage on the Measuring Unit before sending this command. These  
commands will spend approximately 1 second for processing. The settings of each  
function are as follows:  
• Positive offset: Offsetting in the positive (0) direction.  
• Negative offset: Offsetting in the negative (1) direction.  
• Positive zero-set: Zero-setting in the positive (0) direction.  
• Negative zero-set: Zero-setting in the positive (1) direction.  
*5: “PRr” is used to set the data output conditions for the RS-232C (printer)/GP-IB or  
Digimatic Output Unit. If the PR number is 1, 3 or 5, it is possible to set the periodic  
output timer, and the data output interval can be selected from 0 (for each measure-  
ment) and between 1 and 999 seconds.  
The PR numbers and the data output conditions have the following relationships.  
RS-232C  
GP-IB  
DCU  
Data output condition  
Printer  
Remark  
(PR No.)  
0
1
2
3
The periodical output timer can be set  
The periodical output timer can be set  
4
5
6
7
8
9
The periodical output timer can be set  
: Outputs data for each measurement.  
: Performs measurement and outputs data when a GO measurement results.  
: Performs measurement and outputs data when a NG measurement results.  
: No output  
*6: Only one of these statistical items can be specified.  
(15) R  
(a) Format:  
R
(b) Description: If the number of samples is set between 1 and 999, this command executes  
single-run measurement and transmits the measurement result in conformity  
with DATA FORMAT as the response command.  
(c) Example:  
Reception command  
Response command  
R
P0, 12.3456  
No. 99MBC071A  
6 - 21  
(16) CR, CL  
(a) Format:  
CR  
CL  
(b) Description: CR: If the number of samples is set between 1 and 999, this command executes  
continuous-run measurement. However, it does not respond to the “CR”  
command.  
• It transmits the measured results in conformity with DATA FORMAT for  
the response command.  
CL: Terminates continuous-run measurement.  
(c) Example:  
Reception command  
CR  
Response command  
None  
• Outputs as the response, the measurement results according to the data  
output conditions in conformity with DATA FORMAT.  
CL  
OK  
(17) R, STOP  
(a) Format:  
R
STOP  
(b) Description: R:  
If the number of samples is set to 0, this command executes zero-run  
measurement. However, it does not respond to “R” command.  
STOP:Terminates the zero-run measurement, and transmits the measurement  
results in conformity with DATA FORMAT as the response.  
(c) Example:  
Reception command  
R
STOP  
P0, 12.3456  
Response command  
(18) D  
(a) Format:  
D
(b) Description: Transmits as the response the last display of data in the ready state or latched  
data not in conformity with DATA FORMAT.  
This command is used to transmit the previous data, while the R command is  
used to execute measurement then the results are transmitted.  
(c) Example:  
Reception command  
Response command  
D
(DATA FORMAT)  
(19) ST, NST  
(a) Format:  
ST  
NST  
(b) Description: ST : Performs statistical processing. However, measurements obtained in the  
ready state will be omitted from the objectives of statistical processing.  
NST: Terminates the statistical processing.  
(c) Example:  
Reception command  
Response command  
ST or NST  
OK  
6 - 22  
No. 99MBC071A  
6. INTERFACE UNIT  
(20) MC, MCAL  
(a) Format:  
MC  
MCAL  
(b) Description: Both the MC and MCAL commands are used to clear the statistical memory.  
This operation is required before starting statistical processing.  
(c) Example:  
Reception command  
Response command  
MC or MCAL  
OK  
(21) STAT  
(a) Format:  
STAT  
(b) Description: Requests the statistical processing data. The statistical processing data will be  
cleared when the power is off.  
(c) Example:  
Reception command  
Response command  
STAT  
STAT DATA, N100, AVG12.0001, MAX12.0005,  
MIN11.9998, RNG0.0007, S.D0.00007  
(22) AUT  
(a) Format:  
AUT, Nmmm, Dtttt, L ddd.dddd, H ddd.dddd  
(b) Description: Set the conditions of automatic workpiece detection with the following data to  
follow “AUT” and delimited by a comma (,).  
Lower and upper detection limits for the position detection method do not  
require a “-” sign, so it will be ignored if specified.  
• Responds only when the automatic workpiece detection has been set in the  
basic setup.  
• N mmm (mmm: number of measurement times between 1 and 999. If “0” is  
specified, automatic workpiece detection is not performed.)  
• Dtttt (tttt: Invalidation period between 0 and 9999 ms)  
• L ddd.dddd ( ddd.dddd: Lower detection limit)  
• H ddd.dddd ( ddd.dddd: Upper detection limit)  
(c) Example:  
(a) Format:  
Reception command  
Response command  
AUT, N50, D15, L9.5, H12.3  
OK  
(23) AUT, S  
AUT, S  
(b) Description: Where “Performing the automatic workpiece detection” is specified in the basic  
setup, and if this command is received, “S” will be responded each time a  
workpiece is detected.  
If this setup is not made in the basic setup, designating this command results  
in ER6.  
(c) Example:  
Reception command AUT, S  
Response command OK  
No. 99MBC071A  
6 - 23  
(24) RA  
(a) Format:  
RA  
(b) Description: Transmits as the response the conditions of the automatic workpiece detection  
using RA FORMAT.  
(c) Example:  
Reception command  
Response command  
RA  
AUT, N50, D15, L9.5, H12.3  
(25) PR  
(a) Format:  
PR  
(b) Description: • Dedicated command for GP-IB.  
• Used to print the measured data on the optional printer.  
• It is necessary to set the RS-232C port to the printer port in the basic setup  
in advance. Without this setup, designating this command results in ER6.  
Reception command PR  
(c) Example:  
Response command None (printed on the printer)  
(26) SRQ, NSRQ  
(a) Format:  
SRQ, NSRQ  
(b) Description: • Dedicated command for GP-IB.  
• This is used to set up the service request transmission, according to the data  
condition or command receiving condition.  
• Using an SRQ, the interface unit performs a service request to the controller.  
With the NSRQ, the interface will not perform service request.  
• A response command will not be issued to this SRQ. Acknowledge if the  
response is OK with the SRQ status byte.  
• With the NSRQ, the interface will not perform service request. It will only  
respond with an "OK" command.  
(27) Timing signal  
If the measuring operation is interrupted by a command from the I/O interface or key operation,  
an ER7 will be responded to the RS-232C/GP-IB interface.  
This can be used as a timing signal to start a sequencer, etc.  
6 - 24  
No. 99MBC071A  
6. INTERFACE UNIT  
6.1.2.10 An example Program of RS-232C Communication  
The following is an example BASIC program for the PC-9801 (NEC) computer.  
90 CLS 3  
100 PRINT "-------------------------------------------------------"  
110 PRINT " Set the next  
120 PRINT " 1:SPEED, 2:LENGTH, 3:PARITY, 4:FLOW CONTROL  
130 PRINT " (9.6KBPS) (8BIT)  
"
"
"
(NONE)  
(NONE)  
140 PRINT "-------------------------------------------------------"  
150 INPUT "<CR>---OK START",A$  
Setup for the RS-232C  
160 ’  
communication  
170 OPEN "COM:N81N" A$ #1  
180 ’  
190 A$="CL"  
200 PRINT "RS OUT=";A$  
210 PRINT #1,A$  
220 ’  
230 LINE INPUT #1,B$  
240 PRINT "RS INP=",B$  
250 IF B$="OK" THEN ELSE 190  
260 ’  
Repeat the CLcommand  
transmission until OKis received.  
270 A$="SET,SG2,M3,LL0,LH0,REF0,SMP1"  
280 PRINT "RS OUT=";A$  
290 PRINT #1,A$  
300 ’  
Set the measuring conditions.  
310 FOR T=1 TO 500  
320 NEXT T  
: ’0.5sec timer  
330 ’  
340 LINE INPUT #1,B$  
350 PRINT "RS INP=",B$  
360 IF B$="OK" THEN ELSE 190  
370 ’  
Acknowledge the OKresponse.  
380 A$="RN"  
Transmission of RNcommand  
(Single-run measurement)  
390 PRINT "RS OUT=";A$  
400 PRINT #1,A$  
410 ’  
420 FOR T=1 TO 1000  
430 NEXT T  
Wait until measurement is  
completed.  
: ’1sec timer  
DATA=";C  
440 ’  
450 LINE INPUT #1,C$  
460 C=VAL(C$)  
470 PRINT "RS INP=";C$;"  
480  
Digitize the measurement  
result response and display it  
on the CRT.  
490 END  
TIP 1.Each command should be of the programming language to be used.  
2. Depending on the timing gap between the host machine and the LSM, meaning-  
less data may be transmitted/received. Therefore, always send the CLcommand  
and acknowledge the OKcommand before starting the communication.  
3. Timer settings should be compatible to the processing time required for each  
command and the host machine.  
No. 99MBC071A  
6 - 25  
6.1.2.11 An example Program of GP-IB Communication Control  
The following is an example BASIC program to run on the PC-9801 (NEC) computer.  
80 CLS 3  
90 PRINT "----------------------------------------------------"  
100 PRINT " set the next  
"
"
"
110 PRINT "  
120 PRINT "  
My address (2)  
Delimiter (CR+LF)  
130 PRINT "----------------------------------------------------"  
140 INPUT "<CR>---OK start",A$  
150 '  
160 ISET IFC  
170 ISET REN  
180 CMD DELIM=0  
190 '  
:'interface clear  
:'remote on  
:'delimiter set  
Initializing the GP-IB  
200 A$="CL"  
:'-------------  
210 PRINT "GP OUT=";A$  
220 PRINT @2;A$  
230 '  
240 LINE INPUT @2;B$  
250 PRINT "GP INP=";B$  
Transmitting the CL command  
Repeat until "OK" is sent back  
260 IF B$="OK" THEN ELSE 200  
270 '  
280 A$="SET,SG2,M3,LL0,LH0,REF0,PR3,PRT0,SMP1"  
290 PRINT "GP OUT=";A$  
300 PRINT @2;A$  
310 '  
Setting the measuring conditions  
320 FOR T=1 TO 500  
330 NEXT T  
: '0.5 sec timer  
340 '  
350 LINE INPUT @2;B$  
360 PRINT "GP INP=";B$  
Confirming the "OK" response  
370 IF B$="OK" THEN ELSE 200  
380 '  
390 ON SRQ GOSUB 580  
Condition setting for SRQ interrupt  
400 N=0  
410 SRQ ON  
420 '  
430 '---------------------------------------------- C-RUN  
Each command is transmitted  
depending on the condition  
Entering the service request state for  
the SRQ  
440 IF N=0 THEN A$="SRQ"  
450 IF N=1 THEN A$="CR"  
:GOTO 490  
:GOTO 490  
460 IF N=10 THEN A$="CL" :GOTO 490  
470 GOTO 520  
480 '  
490 PRINT "GP OUT=";A$  
500 PRINT @2;A$  
510 '  
Transmit CR command for starting  
continuous-run measurement  
Transmit STOP command for  
terminating the measurement  
:'-------------  
520 SRQ ON  
530 FOR T=1 TO 2000  
540 NEXT T  
550 '  
Wait for the response  
:'2 sec timer  
560 END  
570 '  
580 '-----------------------------------------SRQ ROUTINE  
590 SRQ STOP  
600 N=N+1  
Corresponding operation to the SRQ  
610 PRINT "SRQ IN=";  
620 POLL 2,P  
630 PRINT P  
640 IF (P AND &H10)=&H10 OR (P AND &H3F)=1 THEN ELSE RETURN 440  
650 INPUT @2;B$,C$  
660 C=VAL(C$)  
670 PRINT "GP INP=";B$;",";" C=";C  
680 RETURN 430  
6 - 26  
No. 99MBC071A  
6. INTERFACE UNIT  
6.2 Optional Interface  
Into the option slot either of the Digimatic Code Output Unit, Second I/O Analog, BCD, and  
GP-IB Interface Units can be mounted.  
6.2.1 Digimatic Output Unit interface  
With the optional Digimatic Output Unit interface the LSM can be connected to the  
Digimatic Data Processor (DP-1VR etc.) which uses the Mitutoyo-original data format for  
easy data collection and processing.  
In addition, as this LSM has two interface units, two pairs of measurements can be collected  
at a time, if the simultaneous measurement is specified.  
6.2.1.1 Method of use  
1) Installation and setup of the interface  
• Install the interface unit in the Display Unit. For the method of installation, refer to  
Section 6.3 “Installing the Optional Interface Unit”.  
• In the B6 mode of the basic setup, make the settings for the Digimatic Output Unit  
interface.  
: Uses only the OUTPUT-1 from the two interface units.  
Select this mode for single measurement.  
: Uses the OUTPUT-1 and OUTPUT-2 interface units.  
Select this mode when two Digimatic Output Units are used for simultaneous  
measurement.  
Set the data output conditions in the function setup.  
RS-232C  
Data output condition  
GP-IB  
DCU  
Printer  
Remark  
0
1
2
3
The periodical output timer can be set  
The periodical output timer can be set  
4
5
6
7
8
9
The periodical output timer can be set  
: Outputs data for each measurement.  
: Performs measurement and outputs data when a GO measurement results.  
: Performs measurement and outputs data when a NG measurement results.  
: No output  
No. 99MBC071A  
6 - 27  
2) Data output  
a. When a data send request comes from the external equipment such as the Digimatic Data  
Processor to the LSM, the measurement data will be outputted through this interface by  
the following timing.  
• When the DATA key on the Digimatic Data Processor is pressed  
• When the foot switch being connected to the Digimatic Data Processor is pressed.  
• When an REQ signal is inputted from other external equipment.  
b. When the measurement is initiated by pressing the  
key, or by receiving a RUN  
RUN  
input from the I/O interface or “R” command from the RS-232C/GP-IB interface, the  
measurement data will be outputted according to the data output conditions being set.  
6.2.1.2 Name of each part  
Connector  
DIGIMATIC CODEOUT  
9
10  
1
2
9
10  
1
2
OUTPUT-1  
OUTPUT-2  
Digimatic Output Unit 1 connector  
Digimatic Output Unit 2 connector  
Consisting of  
Digimatic Output unit  
Quantity  
1
1
Connecting cable  
6 - 28  
No. 99MBC071A  
6. INTERFACE UNIT  
6.2.1.3 I/O specifications  
The following are the I/O specifications of the Digimatic code output interface.  
1
2
9
• Applicable connector:  
7910-B500 (Manufacturer: 3M)  
XG4M-1030 (Manufacturer: Omron)  
10  
• Pin assignment  
Pin No.  
Signal name  
I/O direction  
Function  
GND  
DATA  
CK  
Out  
Out  
Out  
In  
Signal GND  
Data out  
1
2
Data transmission clock  
Data read request for external device  
Data output request from external device  
Spare  
3
RDY  
REQ  
I.C  
4
5
6~9  
10  
F.G  
Frame GND  
• Signal output circuit  
(by open collector)  
Pins No.2,3 and 4  
High: MAX 25V  
TD62503  
Low: 0.8V 20mA  
Inside of interface  
• Signal input circuitry  
20K  
20K  
Pin No.5  
74HC14  
High: MIN 3.5V  
Low: MAX 0.4V  
330P  
Inside of interface  
No. 99MBC071A  
6 - 29  
6.2.1.4 Timing chart  
1) When a data request is transmitted from a Digimatic data processor to the LSM  
RDY  
REQ  
Output level  
Output level  
DATA Output level  
CK Output level  
d1  
d2  
d3  
d4  
d13  
t1  
t2 t3 t4  
t1:10 ms or less (measurement time if successively requested)  
t2: 0.2 to 1 ms  
t3: 0.2 to 1 ms  
t4: 0.2 to 1 ms  
2) When a data read request is transmitted from the LSM to the Digimatic data processor  
RDY  
REQ  
Output level  
Output level  
DATA Output level  
CK Output level  
d1  
d2  
d3  
d4  
d13  
t5 t6 t2 t3 t4  
0 < t5 < 2s  
t6: 0 to 100 ms  
t2: 0.2 to 1 ms  
t3: 0.2 to 1 ms  
t4: 0.2 to 1 ms  
TIP The DP-series Digimatic Data Processor takes approximately 2 seconds for  
processing each data. Therefore, do not issue a data output request at an interval  
less than 2 seconds.  
Data will not be outputted while an error message is shown on the LSM display.  
If the Digimatic Data Processor shows an error message, check the number of  
digits (of the sent data) below decimal point. For detail refer to Section 6.2.1.5  
Data format.  
If the DP-1VR is connected, set the setting of INTERFACEto COMPATIBLE.  
For details, refer to the users manual of DP-1VR.  
6 - 30  
No. 99MBC071A  
6. INTERFACE UNIT  
6.2.1.5 Data format  
Digimatic data format consists of measured data which is made up of 13 hexadecimal digits  
using 0 to F, each 4 bits (of binary data) long. The data is output serially, starting from the  
LSB (Least Significant Bit) of the LSD (Least Significant Digit) to the MSB (Most Signifi-  
cant Bit) of the MSD (Most Significant Digit). The 13 digits have the following content.  
Digit  
Function  
Bit configuration  
d1  
d2  
d3  
d4  
F (1111)  
F (1111)  
F (1111)  
F (1111)  
Unassigned  
+ : 0 (0000)  
– : 8 (1000)  
d5  
Sign  
MSD  
d6  
d7  
d8  
Measured data  
d9  
(6 digits of BCD)  
d10  
d11  
LSD  
X 10 -0: 0 (0000)  
X 10 -1: 1 (0001)  
X 10 -2: 2 (0010)  
X 10 -3: 3 (0011)  
X 10 -4: 4 (0100)  
X 10 -5: 5 (0101)  
Decimal point  
position  
d12  
d13  
mm :  
inch :  
0 (0000)  
1 (0001)  
mm (+NG) : 2 (0010)  
mm (GO) : 3 (0011)  
mm (-NG) : 4 (0100)  
inch (+NG) : 5 (0101)  
inch (GO) : 6 (0110)  
inch (-NG) : 7 (0111)  
Unit  
(GO/ NG  
judgment results)  
An example of output data  
d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13  
F
F
F
F
0
2
1
0
7
6
5
4
0
d5 d6~d11  
d12 d13  
+ 210765 x 10-4 mm  
+21.0765mm  
No. 99MBC071A  
6 - 31  
NOTE 1. Decimal Point Position  
The decimal point position will be adjusted as follows for the DP series data  
processor, which handles 6-digit data.  
If the uppermost (7th) digit of the output data is 0, the lower six digits will be  
output.  
If the uppermost (7th) digit of the output data is not 0, the upper six digits will  
be output.  
If six digits are in the decimal places, a 0is output as a decimal point position.  
Example)  
Digimatic code output  
Display  
Transmitted data  
Decimal point position  
5.4321  
65.4321  
765.4321  
0.654321  
7.654321  
054321  
4
4
3
0
5
654321  
765432  
654321  
765432  
When the decimal point position of the input data is changed, the DP series  
data processor cannot continue the data processing unless the accumulated  
data is cleared. (Therefore, consider the measuring range of the LSM so that  
the resulting data has a uniform decimal point position.)  
2. Data output at simultaneous measurement  
If two Digimatic Output Units are used in simultaneous measurement, outputs to  
each Digimatic Output Units are as follows:  
OUTPUT-1: Data from program Nos. 0 through 4  
OUTPUT-2: Data from program Nos. 5 through 9  
If a single Digimatic Output Unit is used, it must be connected to OUTPUT-1,  
through which data of the foreground program is outputted.  
6 - 32  
No. 99MBC071A  
6. INTERFACE UNIT  
6.2.2 Second Analog I/O Interface  
This interface deals with two pairs of GO/NG judgment result output, one set of analog  
output and control input. This is suitable for simultaneous measurement, multi-limit selection,  
and group judgment operations.  
6.2.2.1 Method of use  
1) Installation and setup of the interface  
• Install the interface unit in the Display Unit. For the method of installation, refer to  
Section 6.3 “Installing the Optional Interface Unit”.  
• In the basic setup make the settings according to the purpose of measurement. For detail  
refer to Section 4.1 “Basic Setup”.  
• In the function setup make the settings according to the purpose of measurement. For  
detail refer to Section 4.5 “Setting Up the Functions”.  
NOTE This interface has jumper pins (for short-circuiting between Pins 1 and 2 of JP1) on  
the upper surface of the board. However, never modify the existing setting, since this  
is for future expansion.  
6.2.2.2 Name of each part  
Jumper switch: JP1  
Connector 1 pin mark ( )  
Connector  
JP1  
3
1
TP3  
TP1  
TP2  
I/O ANALOG I/F  
18  
36  
1
19  
ALG 0V FG  
I/O  
Analog output connector  
I/O Interface connector  
Consisting of  
Second Analog I/O interface  
Quantity  
1
1
1
Connector  
Connecting cable  
No. 99MBC071A  
6 - 33  
6.2.2.3 I/O Interface  
This interface is used to communicate with a sequencer, a PC (programmable controller), or  
relay circuitry by means of sequential signals. The signal has negative-true logic (output level  
is LOW when control is ON). (Only Err-0 has positive-true logic.)  
1) Specifications  
• Pin assignment  
18  
1
36  
19  
a. Pin assignment for GO/NG judgment.  
Signal name  
+5V  
Signal name  
GND  
Pin No.  
1
I/O direction  
(Internal power)  
(IN)  
Pin No.  
19  
I/O direction  
(Internal power)  
(IN)  
2
COM (IN)  
PROG. 0  
PROG. 2  
PROG. 4  
SHIFT  
20  
COM (IN)  
PROG. 1  
PROG. 3  
I.C  
3
IN  
21  
IN  
4
IN  
22  
IN  
5
IN  
23  
(OUT)  
IN  
6
IN  
24  
PRINT  
RESET  
A-(GO)  
I.C  
7
RUN  
IN  
25  
IN  
8
A-(-NG)  
I.C  
OUT  
26  
OUT  
9
(OUT)  
(OUT)  
OUT  
27  
(OUT)  
(OUT)  
OUT  
10  
11  
12  
13  
14  
15  
16  
17  
18  
I.C  
28  
I.C  
B-(-NG)  
B-(+NG)  
I.C  
29  
B-(GO)  
I.C  
OUT  
30  
(OUT)  
(OUT)  
OUT  
(OUT)  
OUT  
31  
I.C  
A-(+NG)  
A-(GO)  
ERR. 0  
COM (OUT)  
CNT  
32  
A-(-NG)  
ACK  
OUT  
33  
OUT  
OUT  
34  
STB  
OUT  
(OUT)  
OUT  
35  
COM (OUT)  
FG  
(OUT)  
36  
NOTE 1. This is internally wired to I.C. Always retain this pin externally unused.  
2. Between Pin No.8 and Pin No.32, and between Pin No.15 and Pin No.26 are  
connected internally, therefore outputting the identical signals. Only use either of  
the pins.  
3. In simultaneous measurement GO/NG judgment result from the program Nos.0 to  
4 will be outputted to A-(-NG), A-(GO), and A-(+NG), and that from the program  
Nos.5 to 9 will be outputted to B-(-NG), B-(GO), and B-(+NG), respectively.  
4. In single measurement identical judgment results will be outputted to A-(-NG) and  
B-(-NG), A-(GO) and B-(GO), and A-(+NG) and B-(+NG).  
5. When group judgment is done, each individual judgment result will be outputted  
for A-(-NG), A-(GO), and A-(+NG), and the group judgment result will be outputted  
for B-(-NG), B-(GO), and B-(+NG), respectively.  
6 - 34  
No. 99MBC071A  
6. INTERFACE UNIT  
b. Pin assignment for multi-limit selection (L1-L6)  
Signal name  
+5V  
Signal name  
Pin No.  
1
I/O direction  
Pin No.  
19  
I/O direction  
(Internal power)  
(IN)  
GND  
COM (IN)  
PROG. 1  
PROG. 3  
B-L7  
(Internal power)  
(IN)  
2
COM (IN)  
PROG. 0  
PROG. 2  
PROG. 4  
SHIFT  
RUN  
20  
3
IN  
21  
IN  
4
IN  
22  
IN  
5
IN  
23  
OUT  
IN  
6
IN  
24  
PRINT  
RESET  
A-L2  
7
IN  
25  
IN  
8
A-L1  
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
(OUT)  
OUT  
26  
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
OUT  
(OUT)  
9
A-L3  
27  
A-L4  
10  
11  
12  
13  
14  
15  
16  
17  
18  
A-L5  
28  
A-L6  
B-L1  
29  
B-L2  
B-L3  
30  
B-L4  
B-L5  
31  
B-L6  
A-L7  
32  
A-L1  
A-L2  
33  
ACK  
ERR. 0  
COM (OUT)  
CNT  
34  
STB  
35  
COM (OUT)  
FG  
36  
• Applicable connector  
57-30360 (or the equivalent product by DDK or Anphnor, etc.)  
This is the standard accessory of this interface.  
NOTE 1. Between Pin No.8 and Pin No.32, and between Pin No.15 and Pin No.26 are  
connected internally, therefore they output the identical signals. Only use either of  
the pins.  
2. In simultaneous measurement results from the program Nos.0 to 4 will be output-  
ted to A-L1 through A-L7, and that from the program Nos.5 to 9 will be outputted  
to B-L1 through B-L7, respectively.  
3. In single measurement the identical results will be outputted to A-L1 through A-L7  
and B-L1 through B-L7, respectively.  
4. The group judgment function can not be used for multi-limit selection.  
No. 99MBC071A  
6 - 35  
• Input circuitry  
2.2K(1W)  
COM (IN): External supply  
(5~24V)  
voltage terminal  
Input signal  
• Output circuitry  
Output signal (30V,10mA or less)  
COM (OUT)  
2) Power supply for external devices (+5V, GND)  
This terminal supplies 5V 100mA to external devices. This is appropriate for a foot switch or  
LEDs which consume little power. Do not use this power supply when I/O cable exceeds  
1.5m or is used to control a power drive circuitry.  
IMPORTANT External power supply  
1. Maximum capacity of the external power supply should be 100 mA.  
Never draw a current exceeding 100 mA. Otherwise a system failure results.  
2. Always use a dedicated external power supply when there is a need to run the I/O  
cable more than 1.5 m or control the power circuit.  
In this case if the external power supply of the LSM is used, it may cause opera-  
tion error due to electrical interference.  
6 - 36  
No. 99MBC071A  
6. INTERFACE UNIT  
3) Input signal  
Signal  
Description  
RESET  
• Clears the result display or interrupts measurement. Same effect as  
C
pressing the  
key.  
PROG. 0 to 4  
SHIFT + PROG. 0 to 4  
RUN  
• Used to select a PROG No. from among 0 to 4.  
• To select PROG 5 to 9, enter SHIFT and PROG 0 to 4 concurrently.  
• Used to commence the measurement. Has the same effect as pressing  
RUN  
the  
key.  
• Can be set to trigger continuous-run measurement with term  
specification in the basic setup.  
RUN + RESET  
• Measurement will commence when these two signals are entered  
simultaneously. Has the same effect as pressing the  
C.RUN  
keys together.  
PRINT  
S.PR  
PRINT  
• Same effect as pressing the  
key.  
PRINT + RESET  
• The statistical processing results will be printed, and then all  
statistical memory will be cleared when these two signals are sent  
simultaneously.  
S.PR  
SHIFT  
• Same effect as pressing the  
and  
key.  
PRINT  
SHIFT + RESET  
SHIFT + RUN  
Inputting these signals into the I/O interface, the ER7 command will  
be output from the RS-232C. Use this as a timing signal.  
• Offsetting will be performed using the already set offset value and  
offset direction. If those offset conditions are not set, zero-setting in  
positive direction will be performed.  
MASTER  
OFFSET  
• Same effect as pressing the  
key.  
• Can be set as a HOLD signal by the basic setup.  
4) Output signal  
Signal  
Description  
• Output of GO/-NG judgment result and multi-limit judgment result.  
• Data for PRG 0 to 4 will be output in the simultaneous measurement  
mode.  
A-(-NG), A-(GO),  
A-(+NG), A-L1 ~ A-L7  
• Outputs the results of individual judgment in group judgment.  
• A-(-NG) and A-L1, and A-(GO) and A-L2 are internally connected  
respectively.  
B-(-NG), B-(GO),  
B-(+NG), B-L1 ~ B-L7  
• The output signal is equivalent to A-(-NG), A-(GO), A-(+NG), or  
A-L1 through A-L7 In the single measurement.  
• Outputs data from a program among No. 5 through 9 in the  
simultaneous measurement.  
• Outputs the results of group in group judgment.  
ERR.0  
ACK  
STB  
• This is usually set to ON (LOW level) but turns to OFF (HIGH  
level) when a segment error occurs.  
• This is set to ON (LOW level) during measurement (single-run or  
continuous-run).  
• Before outputting a judgment result, this will be output (Low) as a  
confirming signal.  
• Turns Low level if abnormal data to be discarded occurred  
successively.  
CNT  
No. 99MBC071A  
6 - 37  
TIP When Err-0 occurs, GO/NG judgment and CNT output are all set to OFF.  
The single-run measurement and zero-run measurement will be interrupted by Err-  
0 and the measurement mode will be terminated without outputting the results.  
During the continuous-run measurement, the ACK is set to ON, even if an Err-0  
occur. Measurement continues after the error is rectified.  
5) I/O timing chart  
• Single-run measurement  
TIN  
(SHIFT+)  
PROG. 0 ~ 4  
TIN  
RESET  
TW  
TW  
TIN  
RUN  
ACK  
STB  
TBO  
TAD  
TSO  
TAD  
TDO  
GO/NG result output  
• Zero-run measurement  
TIN  
(SHIFT+)  
PROG. 0 ~ 4  
RESET  
RUN  
ACK  
T
W
TIN  
TIN  
TRA  
TAD  
STB  
TSO  
TAD  
TDO  
GO/NG result output  
• Continuous-run measurement  
TIN  
(SHIFT+)  
PROG. 0 ~ 4  
TW TIN  
RESET  
RUN  
ACK  
TIN  
TIN  
TRA  
TAD  
TBO  
TBC  
TBC  
STB  
TSO  
TAD  
TDO  
GO/NG result output  
6 - 38  
No. 99MBC071A  
6. INTERFACE UNIT  
• Continuous-run measurement with term specification  
TIN  
(SHIFT+)  
PROG. 0 ~ 4  
RESET  
TW  
RUN  
ACK  
STB  
TRA  
TAD  
TAD  
TBO  
TBC  
TSO  
TBC  
TDO  
GO/NG result output  
• Timing of HOLD input (at continuous-run measurement)  
TIN  
(SHIFT+)  
PROG. 0 ~ 4  
TW  
TIN  
RESET  
RUN  
ACK  
TIN  
TIN  
TRA  
TAD  
TBO  
TBC  
TSO  
STB  
TAD  
TDO  
TDO  
GO/NG result output  
HOLD  
TDO or more  
• Response time  
Signal  
Response time  
Description  
TIN  
TAD  
TSO  
10 ms or more  
10 ms or less  
Input time  
Acceptance time  
Strobe length  
Depends on the number of scans  
(Refer to the following table.)  
TW  
TDO  
TRA  
TBO  
10 ms or more  
115 µs  
Input process time  
Data setup time  
Termination time  
20 ms or less  
(Measurement interval) + 10 ms or less  
(Measurement interval) x n + 10 ms or less  
n = Number of measuring times  
Single-run measurement  
Zero-run measurement  
TBC  
(Measurement interval) 5 ms or less  
Duration of continuous-run measurement  
• Strobe length: TSO  
Number of scans for averaging  
1 ~ 8 times  
Strobe length  
0.3 0.1 ms  
0.2 ms  
20 0.2 ms  
16 ~ 128 times  
2
256 ~ 2048 times  
No. 99MBC071A  
6 - 39  
• Other  
1. Use negative-true logic pulses of 10 ms or more for the input signals.  
2. RES signal clears the previous measurement result and interrupts the measuring operation.  
3. RUN, RUN+RESET, or program number switching signal input clears the latched  
measured data.  
4. During measurement only RESET, RUN or HOLD signals are accepted.  
5. For information about the measurement intervals that correspond to each of the scannings  
refer to Section 4.5.3.2 “F1: Setting the measurement inerval (masurement time )”.  
NOTE Output signals are ensured with a built-in resistance load of 2.2 κW.  
6) Application of the I/O interface  
a. When the internal power source of the I/O analog output interface is used and the display  
of judgment result on GO and NG LEDs is triggered by the key operation at the external  
device.  
Connector pin No.  
+5V  
(100mA MAX)  
1
2
COM(IN)  
COM(IN)  
20  
GND  
19  
17  
35  
COM(OUT)  
COM(OUT)  
PROG0  
PROG1  
PROG2  
PROG3  
PROG4  
SHIFT  
3
21  
4
22  
5
Approximately 330x 3  
6
PRINT  
RUN  
24  
7
LED  
RESET  
25  
C.RUN  
-NG  
GO  
8
26  
14  
+NG  
NOTE 1. For this circuit, shielded cables should be used.  
The circuit board must be enclosed in a metal case. Connect the cables shield  
terminal to the metal case positively.  
2. For a circuit that requires concurrent signal input from two terminals, such as a  
continuous-run measurement circuit, it is required that diodes be used as shown in  
the figure above (circuit for C.RUN).  
3. As the keys use switches that cause less chattering.  
6 - 40  
No. 99MBC071A  
6. INTERFACE UNIT  
b. When an external power source of +24V is used and the display of judgment result on GO  
and NG LEDs is triggered by the key operation at the external device.  
Connector pin No.  
COM(IN)  
+24V  
2
COM(IN)  
20  
COM(OUT)  
COM(OUT)  
PROG0  
PROG1  
PROG2  
PROG3  
PROG4  
SHIFT  
17  
35  
3
0V  
21  
4
22  
5
0.5W  
2.2K X 3  
6
LED  
PRINT  
24  
7
RUN  
RESET  
-NG  
25  
8
GO  
26  
14  
+NG  
c. When the circuit has the same specification as described on the previous page and powers a  
lamp (1A maximum) when a NG judgment takes place  
+24V  
Connector pin No.  
Q1  
-NG D1  
D1  
D2  
8
+NG D2  
14  
17  
35  
COM(OUT)  
COM(OUT)  
R1  
Q1: PNP Darlington transistor,  
e.g. 2SB975 (Manufacturer: NEC)  
R1: Protective resistor, 5W, 1 to 2Ω  
D1: Switching diode, e.g. 1S188  
D2: (Manufacturer: Toshiba)  
LAMP  
0V  
NOTE 1. Approximately 10 times the rated current will flow through the lamp when it is  
turned on. (This is called rush current, which is often observed when the lamp  
filament resistance is low because of low temperature.) So, the ICMAX of the  
driving transistor should have a sufficient rating.  
2. About 1.5W dissipates from the transistor in the above diagram. A radiator panel  
is needed.  
No. 99MBC071A  
6 - 41  
d. When the circuit has the same specifications as described on the previous pages and controls  
alternating current devices for signaling a –NG (assuming that the relay’s sensitivity is  
50mA).  
+24V  
R1  
Connector pin No.  
R2  
-NG  
Q1  
8
COM(OUT)  
COM(OUT)  
17  
35  
D1  
K
K
Load  
(A)  
(B)  
Q1: 2SA953, etc.  
R1: 10KΩ  
0V  
R2: 4.7KΩ  
D1: Switching diode (100 to 200mA): Model 10D10 (Manufacture: Nihon Inter)  
NOTE 1. Always use a shielded-wire cable as the I/O cable, and positively ground the  
shielding wire net to the connector casing. If the cable does not have a shielding  
net, the system may experience electrical interference resulting in operation  
errors. Or, high frequency electromagnetic wave will be emitted from this system  
and interfere the electrical equipment such as TVs, etc.  
2. Observe the following precautions when relays are used for control circuits. Use  
the following diagram when designing the control circuit.  
a. Several kV of current may be induced the moment the relay is turned OFF,  
which may cause relay-driven components to be damaged. Or, the induced  
voltage may cause the system to malfunction. Always insert protective compo-  
nents such as diodes in the circuit.  
b. To drive equipment that operates on alternative current, always implement a  
protective circuit (spark killer) to protect the relay contacts. In general, if the  
current load is caused by induction, add protective circuit (A) or (B).  
c. Refer to the manual of each relay for selection. It describes the method of  
calculating the protection circuit (or selection of protective parts) depending on  
the load.  
6 - 42  
No. 99MBC071A  
6. INTERFACE UNIT  
6.2.2.4 Analog output  
Measurement results will be outputted as full-scale 5V analog signals.  
1) Specification  
• Pin assignment  
ALG 0V FG  
Pin No.  
Signal name  
Description  
Analog output terminal  
1
2
3
ALG  
0V  
Analog 0V terminal  
FG  
Frame ground (grounding terminal)  
• Output circuit  
560Ω  
ALG  
0V  
a. Range of analog output voltage is 5V.  
b. The accuracy of the analog output voltage is 0.2% of its full scale.  
c. This analog output must be connected to a device that has an input impedance greater  
than 1 ΜΩ. If the input impedance is low, the output accuracy will be reduced due to  
the internally provided resistance of 560 .  
2) Method of use  
• Set a proper reference value and scale value in the function setup. However, if “Copying  
the target value to the reference value” is set in the basic setup, set the target value and  
scale value (gain) instead.  
• Analog output = (Measured data - Reference value) x Scale value (gain)  
For detail refer to Section 4.5.3.4 “F3: Setting the reference value”.  
NOTE 1. Always use a braided shielding wire cable as the analog cable, and positively  
ground the braided shielding wire to the FG terminal.  
2. If wiring the Analog output connector, do not directly touch the output terminals by  
hand, which has static charges, because the internal circuit may be damaged by  
static discharge. Discharge the static energy by touching the metallic surface of  
the Display unit in advance. In addition, unplug the power cord from the outlet  
before commencing wiring.  
3. After wiring has been completed, close the protective cover.  
4. This analog output will take place as associated with program numbers 5 through  
9 during simultaneous measurement. Output associated with program numbers 0  
through 4 will be available through the standard Analog I/O interface.  
No. 99MBC071A  
6 - 43  
6.2.3 BCD interface  
This interface outputs data in parallel format. The output data consists of a positive true  
logic/negative true logic signal and a decimal number (BCD)/Hexadecimal number (HEX).  
6.2.3.1 Method of use  
1) Installation and setup of the interface  
• By referring to Section 6.2.3.3 “Specification”, set the jumper switches and DIP switches  
to meet the purpose of measurement.  
• Install this interface unit in the Display Unit. For the installation method, refer to Section  
6.3 “Installing the Optional Interface Unit”.  
6.2.3.2 Name of each part  
Jumper switch: JP3  
Connector 1 pin mark ( )  
Connector  
Jumper switch: JP2  
Jumper switch: JP1  
DIP switch: SW1  
BCD I/F  
18  
36  
1
19  
BCD interface connector  
Consisting of  
Quantity  
BCD interface  
1
1
1
Connector (57-30360)  
Connecting cable  
6 - 44  
No. 99MBC071A  
6. INTERFACE UNIT  
6.2.3.3 Specification  
1) I/O specifications  
• Pin assignment  
18  
1
19  
36  
Signal name  
Signal name  
Signal name  
Pin No.  
Pin No.  
Pin No.  
25  
1
2
1
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
1
1
2
2
26  
2
X 10 0  
X 10 3  
X 10 6  
3
4
4
27  
4
}
}
}
4
8
1
8
1
28  
8
5
29  
Err-0 (segment error)  
6
2
2
30  
HOLD (input)  
X 10 1  
X 10 4  
7
4
4
31  
F/R (Switching foreground / background)  
STB (strobe output)  
}
}
8
8
1
8
1
32  
9
33  
EXT.Vcc (power supply for external device)  
+POLE (polarity display)  
GND (signal GND)  
10  
11  
12  
2
2
34  
X 10 2  
X 10 5  
4
4
35  
}
}
8
8
36  
FG (Frame GND)  
• Applicable connector  
57-30360 (or the equivalent product by DDK or Anphnor, etc.)  
This is the standard accessory of this interface.  
IMPORTANT External power supply, EXT Vcc  
1. Maximum capacity of the external power supply should be 100 mA.  
Never draw a current exceeding 100 mA. Otherwise a system failure results.  
No. 99MBC071A  
6 - 45  
2) Selection of functions to be used  
• Selection of jumper switches  
• Jumper switch  
1 PIN  
JP3  
3 PIN  
JP1  
JP2  
3 PIN  
1 PIN  
Make between No. 1 and 2 pins  
or between No.2 and 3 pins  
short-circuited using  
a short-circuiting plug.  
• DIP switch  
Select a positive true logic/negative true logic signal and a decimal number (BCD)/  
Hexadecimal number (HEX) for the data output.  
Jumper pin No.  
Jumper setting  
Function  
Positive-true logic  
Short-circuiting between 1 and 2  
(factory setting)  
JP1  
Short-circuiting between 2 and 3  
Negative-true logic  
Short-circuiting between 1 and 2  
(factory setting)  
Output of a decimal number (BCD)  
JP2  
JP3  
Note  
Short-circuiting between 2 and 3  
Output of a hexadecimal number (HEX)  
Negative-true logic  
For future expansion, Always short-circuit  
between 1 and 2.  
Short-circuiting between 1 and 2  
(factory setting)  
Short-circuiting between 2 and 3  
Note: Outputs the displayed measured data in a hexadecimal number (HEX)  
• DIP switch settings  
Circuit No.  
Switch setting  
OFF (factory setting)  
ON (prohibited)  
OFF (factory setting)  
ON  
Function  
For future expansion. Never turn to ON, otherwise an operation  
error occurs.  
Circuit 1  
Uses the external power supply.  
Circuit 2Note 1  
Circuit 3Note 1  
Uses internal power and +5V power supply (max. 100 mA)  
Separates between the internal and external grounds.  
Connects between the internal and external grounds.  
OFF (factory setting)  
ON  
Note 1: Settings of Circuits 2 and 3 should be identical, disregarding it is ON or OFF. These two circuits do  
not function if inconsistently set (disregarding ON or OFF).  
NOTE Circuits 2 and 3 of the DIP switch  
Do not turn the circuits 2 and 3 to ON as much as possible except when it is un-  
avoidable because any external power supply can not be used. If doing so, malfunc-  
tion may occur due to electrical interference.  
6 - 46  
No. 99MBC071A  
6. INTERFACE UNIT  
3) Output signal  
External power supply: Vcc  
(5~24 V)  
R
SW1: Circuit 3  
Internal GND  
Internal circuit  
External GND  
• Positive-true logic output by open collector  
Voltage: 30V max., Drawing current: 10 mA max.  
• External resistance R: (Vcc /10) KR 10 k Ω  
Pin No.  
Signal name  
Remarks  
1~28  
DATA  
Output of 7-digit measurement data (possible to select whether by  
positive-true logic or by negative-true logic)  
29  
32  
34  
ERR-0  
STB  
Output of segment error (positive-true logic)  
Output of strobe (acknowledgment) (negative-true logic)  
+POLE  
Output of sign  
• HIGH level: Positive (+) data  
• LOW level: Negative (-) data  
4) Input signal  
Internal power +5V  
External power supply: Vcc  
(5~24 V)  
SW1: Circuit 2  
10K  
F/R, HOLD  
SW1: Circuit 3  
Internal GND  
Internal circuit  
External GND  
Remarks  
Pin No.  
Signal name  
30  
HOLD  
• Does not hold the data when the circuit is open or the line level falls to LOW.  
• When the line level rises to HIGH, the previous data will be held (latched)  
and the update does not take place. In order to read the data at a desired  
point in time irrespective of the STB signal, start the read at least 500 µs after  
the input of HOLD signal.  
31  
F/R  
This is valid in simultaneous measurement.  
• Selects F (foreground program No.) when the circuit is open or the line level  
falls to LOW.  
Selects R (background program No.) when the line level rises to HIGH.  
No. 99MBC071A  
6 - 47  
5) Timing chart  
Display value of the foreground side  
Display value of the background side  
(In simultaneous measurement mode only)  
Data output  
TDO  
TSO  
Fore-  
Fore-  
Fore-  
Back-  
Back-  
ground  
data  
Background  
data being held  
STB  
ground ground ground ground  
data  
data  
data  
data  
HOLD  
F/R  
• Strobe length: Tso  
Number of scans for averaging  
1 ~ 8 times  
Strobe length  
0.3 0.1 ms  
0.2 ms  
20 0.2 ms  
16 ~ 128 times  
2
256 ~ 2048 times  
• Time required for data setup: TDO  
Approx. 115 µsec.  
TIP 1. Data output timing  
Input signals (F/R, HOLD) will be checked just before starting the data output.  
In the ready state or continuous-run measurement, the result data will be  
outputted for each measurement interval. However, if the number of averagings  
is set to between 1 and 4 times, the output data may be thinned.  
In the single-run measurement or zero-run measurement data of "0" will be  
output. Also during a setup that accompanies measurement such as for calibra-  
tion or offset function, data of "0" will be output.  
2. While the HOLD signal is on, measured data will not be outputted, if present.  
3. Note that meaningless data may be outputted, if the F/R signal is switched in a  
single measurement (not a simultaneous measurement).  
4. By the F/R signal it is possible to switch between the foreground and background  
data during the display is latched. To do this, wait for at least 2 ms from the rise  
of the STB signal. It takes about TD (maximum 2 ms) from the output of a new  
data to the output of the STB signal.  
Foreground  
data  
Background  
data  
Foreground  
data  
Data output  
STB  
2 ms or more  
T
D
TD  
F/R  
6 - 48  
No. 99MBC071A  
6. INTERFACE UNIT  
6.2.4 GP-IB interface  
• This interface unit conforms to the IEEE standard 488-1978.  
• The subset of this interface does not include the controller function. Consequently, it can  
not output data directly to a printer with a GP-IB interface.  
6.2.4.1 Method of use  
1) Installation and setup of the interface  
• By referring to Section 6.2.4.3 “Specification”, set my-address and delimiter.  
• Install this interface unit in the Display Unit. For the installation method, refer to Section  
6.3 “Installing the Optional Interface Unit”.  
6.2.4.2 Name of each part  
Connector 1 pin mark ( )  
Connector  
GP-IB I/F  
12  
24  
1
1
8
13  
DIP switch  
GP-IB Interface connector  
Consisting of  
Quantity  
GP-IB interface  
Connecting cable  
1
1
No. 99MBC071A  
6 - 49  
6.2.4.3 Specification  
1) Specification  
• Pin assignment  
12  
1
24  
13  
Pin No.  
Signal name  
Pin No.  
13  
Signal name  
DI01  
DI02  
DI05  
DI06  
1
2
14  
DI03  
DI07  
3
15  
DI04  
DI08  
4
16  
EOI  
REN  
5
17  
DAV  
GND  
6
18  
NRFD  
NDAC  
IFC  
GND  
7
19  
GND  
8
20  
GND  
9
21  
SRQ  
GND  
10  
11  
12  
22  
ATN  
GND  
23  
F.G. (Frame GND)  
GND (Signal GND)  
24  
• Applicable connector  
IEEE-488 based.  
2) DIP switch settings  
ON  
1
2
3
4
5
6
7
8
Delimiter:  
The above example sets to "CR+LF+EOI".  
My address:  
The above example sets the address to "2".  
(0-1 EH are available in hexadecimal number)  
• List of delimiters  
Circuit  
Delimiter  
6
7
8
ON  
ON  
OFF  
ON  
ON  
OFF  
OFF  
ON  
OFF  
ON  
ON  
OFF  
ON  
OFF  
OFF  
OFF  
OFF  
ON  
ON  
ON  
ON  
CR+LF  
CR  
LF  
CR+LF & EOI  
CR & EOI  
LF & EOI  
EOI  
6 - 50  
No. 99MBC071A  
6. INTERFACE UNIT  
TIP What is My address?  
Each of the commonication devices which are on the same GP-IB has an specific  
address (number) with which it is identified.  
What is a delimiter?  
The delimiter is a signal (or a set of signals) that represents the end of the data.  
No. 99MBC071A  
6 - 51  
6.2.4.4 Functions  
The GP-IB interface functions include the following.  
Interface function  
Application  
Function  
SH1:  
Functions to synchronize transmission with the data bus operation  
by handshaking with a device equipped with an AH function  
Source Handshake  
AH1:  
Functions to synchronize reception with the data bus operation by  
handshaking with a device equipped with an SH function  
Acceptor Handshake  
T6:  
Basic Talker  
Serial Poll  
Function to transmit data for other devices  
Talker  
Function to transmit a status byte, which represents the talker  
condition, for the controller  
Cancelling talker by Function for automatically canceling the talker function and setting  
MLA.  
the listener function by MLA message.  
L4:  
Basic Listener  
Function to receive data from another device  
Listener  
Cancelling listener Function for automatically canceling the listener function and  
by MTA.  
setting the talker function by MTA message.  
Function to inform the controller of an event occasion, and, as a  
consequence, request special service from the controller  
SR1:  
Service Request  
Function to select the method of device control; either by local  
(manual) or interface information  
RL1:  
Basic Remote Local  
Local Lockout  
Remote Local  
Function to prohibit the device from returning to the local mode.  
Function to prompt the selected device to execute a specified  
operation  
DT1:  
Device Trigger  
TIP What is serial poll?  
The controller which receives an SRQ (Service Request) will call the talkers that it  
assumes are transmission sources. When the addressed talker transmits a status  
byte (8-bit data) back to the controller to represent the talker condition, the control-  
ler will check each byte to identify the source talker.  
When the controller calls a talker for this purpose, it sends an SPE (Serial Poll  
Enable) to the talker to discriminate from general addressing to the talker.  
When this command is issued, the addressed talker will output a status byte to  
represent the talker condition. The talker, if it has issued the SRQ, indicates this  
by setting the 7th bit of the status byte to L.  
Therefore, the controller must be programmed so that it jumps to a subroutine to  
do with the talkers request when it identifies the source talker.  
When the serial poll mode is completed, the controller will send an SPD (Serial  
Poll Disable) for the bus line, and will then return to the normal operation mode.  
SRQ status byte  
In the serial poll state the GP-IB interface unit indicates the reason for issuing an  
SRQ with the following bit contents:  
bit contents  
bit7  
(MSB)  
bit0  
(LSB)  
bit6  
bit5  
bit4  
bit3  
bit2  
bit1  
Item  
OK  
0
0
0
RSV  
RSV  
RSV  
0
0
0
0
0
1
0
1
0
0
0
0
1
ERROR  
DATA  
Error No.  
GO  
NG  
RSV becomes “1” when this interface is in the service request state.  
6 - 52  
No. 99MBC071A  
6. INTERFACE UNIT  
6.2.4.5 Operations  
1) The GP-IB interface unit for the LSM is basically a listener that receives various com-  
mands, and a talker that transmits response commands. For further information on recep-  
tion commands and response commands, refer to the description in Sec. 6.1.2.4.  
2) When receiving an IFC (Inter Face Clear), the GP-IB interface is initialized.  
• Remote state will be canceled to local state.  
• Local lockout state (LLO) will be canceled.  
• Service request (SRQ) transmission will be disabled.  
3) When the GP-IB interface receives an REN (Remote ENable) signal followed by other  
commands, the interface enters the remote state. In the remote state, only the  
can be operated.  
key  
C
4) When the GP-IB interface receives an REN (Remote ENable) signal followed by an LLO  
(Local LOckout) as a multi-statement, the interface enters into local lockout state. In this  
local lockout state, all the key operations are prohibited.  
(This state can be released by inputting an IFC (Inter Face Clear) from the host computer.)  
5) However in the remote state or local lockout state, I/O operations, except for key entries,  
will operate as usual.  
6) When the GP-IB interface receives a GET command as a multi-statement, the single-run  
measurement or zero-run measurement will commence.  
Zero-run measurement can be terminated by inputting another GET command.  
7) This interface unit (as a talker) does not output unless a transmission command has been  
received.  
8) When this interface unit receives an SRQ command, it is ready to transmit the service  
request and the SRQ lamp lights.  
• When this interface transmits a response (sending data from this interface), send a  
service request signal (SRQ) to ready the controller for data reception.  
• When the GP-IB interface receives an SPE (Serial Poll Enable) from the controller, the  
interface outputs the SRQ status byte on the data bus, which describes the content of  
the request.  
• In the service request state, the interface does not output the OK or ER0 – 7 commands  
as a response command, but only sends the SRQ status byte to describe the conditions.  
9) Just after power on transmit a “CL” command as the first communication command and  
repeat this until a response of “OK” is received.  
No. 99MBC071A  
6 - 53  
6.3 Installing the Optional Interface Unit  
For this system it is possible to select either of the Second Analog I/O, BCD, and GP-IB  
interfaces, as well as one Digimatic Output Unit concurrently.  
When installing in the Display Unit the above listed units use the same procedure as shown  
below.  
1) Safety check  
• Turn the power key switch to off position (marked as “O”), then remove the key switch.  
• Unplug the power cord from the inlet on the rear panel of the Display Unit.  
I/O, BCD, GP-IB  
Digimatic Output Unit  
Protection plate  
2) Removing the cover  
Remove four screws on both sides of the cover and take out the cover.  
3) Installing the interface  
• If installing more than two optional interfaces, install them in the order below:  
a. Digimatic Output Unit  
b. Second Analog I/O, BCD, or GP-IB interface  
• Remove the protection plate from where each interface is to be installed.  
• Install each interface unit inside the display unit following 6.3.1 and 6.3.2.  
• Be sure to tighten the fixing screws of each interface unit.  
4) Replacing the cover  
Replace the cover which has been removed at step (2) and fit it with four screws.  
6 - 54  
No. 99MBC071A  
6. INTERFACE UNIT  
6.3.1 Digimatic Output Unit  
• Using the provided connecting cable, connect the Digimatic Output Unit to connector  
CN14.  
• Fit the connecting cable to the cut on the connector CN14 and firmly connect them.  
• Firmly tighten the Digimatic Output Unit mount plate with two screws as shown.  
Digimatic Output Unit  
CN14  
Cut on CN14  
Connect the connecting cable to CN14.  
6.3.2 Second Analog I/O, BCD, and GP-IB interfaces  
• Using the provided connecting cable, connect the interface unit to connector CN9.  
• Fit the connecting cable to the cut on the connector CN9 and firmly connect them.  
• Firmly tighten the Interface Unit mount plate with two screws as shown.  
Interface unit  
CN9  
Cut on CN9  
Connect the connecting cable to CN9  
No. 99MBC071A  
6 - 55  
MEMO  
6 - 56  
No. 99MBC071A  
INSPECTION AND  
MAINTENANCE  
This chapter describes the method of maintenance and troubleshooting, as  
well as the contents of the error messages and remedies.  
7
7.1 Display Unit  
The Display Unit will, if it is turned on, perform a self-check.  
7.1.1 Display check  
• If the power is on, display check mode is entered.  
All LEDs and display sections turn on and then turn off. Then digit 8 turns on succes-  
sively [888···8] from the upper display section: during which check the display elements if  
they are normal and uniform in intensity.  
• Internal circuit checking is carried out and if found to be normal, LASER EMISSION  
LED turns on. Then the BUSY LED starts flashing and measurement will start from the  
ready state.  
• Error message will be displayed if abnormality is detected during selfcheck of the internal  
circuit. For details of error message, refer to 7.3, “Error Messages and Remedies”.  
7.1.2 Cleaning method  
If the display unit is contaminated, unplug the power cord from the inlet first, then wipe  
lightly with a soft dry cloth for the operator’s safety.  
No. 99MBC071A  
7 - 1  
7.2 Measuring Unit  
This section describes the method of maintenance and inspection of the Measuring Unit.  
7.2.1 Laser emission status indicator LED  
This LED turns on to indicate that laser emission is on. This is done to highlight safe  
operation.  
Laser emission  
indicator LED  
7.2.2 Cleaning optical parts  
Periodically clean the protection glass of the emission window and reception window. If the  
protection glass is contaminated, not only is the measuring accuracy reduced but the display  
unit mistakes the dimension of dust or foreign matter with that of the measuring object.  
• Checking with an oscilloscope  
On the rear panel of the Display Unit, there is a SCAN SIG.-1 connector provided for  
monitoring photo-electrical signals.  
Set up the oscilloscope as follows:  
• Vertical sensitivity: 0.1V/DIV (if used with a 1/10 probe)  
• Horizontal sensitivity: 100 µS/DIV  
Approx. 620µs  
Approx. 4 V  
(a) Normal  
(b) Soiled glass  
(c) Soiled glass  
Clean the protective glass according to the following procedure, if the oscilloscope waveform  
(b) or (c) was observed.  
For cleaning, use either a blower or wipe lightly with gauze dampened with a small amount  
of ethyl alcohol.  
IMPORTANT Clean windows are vital for precision measurement in the LSM system. Handle the  
glass with care.  
7 - 2  
No. 99MBC071A  
7. INSPECTION AND MAINTENANCE  
7.2.3 Replacement of protection glass  
For temporarily removing the protection glass for replacement or cleaning since it is damaged  
or contaminated, use the following procedure.  
Model name  
LSM-902  
Disassembly procedure Unscrew the 4 to 6 screws  
that secure the protection glass.  
Reassembly procedure Follow the above procedure in reverse.  
Precautions  
If the protective glass is removed, dust may enter  
inside of the unit. If the ambient air contains moisture,  
the glass may dim. Perform disassembly/reassembly  
in a room which is free from dust and well-ventilated.  
No. 99MBC071A  
7 - 3  
7.3 Error Messages and Remedies  
The table below lists the error messages and their remedies.  
Display  
Meaning  
Remedies  
Segment error  
Check if a workpiece is present.  
Check the segment settings.  
Open the shutter.  
There is no measuring object that  
corresponds to the specified segment.  
Shutter is closed.  
Check the LASER EMISSION LED.  
Laser dose not come into reception unit.  
Laser characteristic may be deteriorated.  
Setup item error  
There is a certain conflict in the setup data.  
C
Press the  
key to clear the error message.  
Previously setup contents are lost. Redo setup from the  
beginning.  
Calibration error  
Incorrect segment setting  
C
Press the  
key to clear the error message.  
A value significantly different from the dimension of  
the reference gage is entered.  
The HIGH CAL setting value is too close to  
the LOW CAL setting value.  
Redo the segment setting again.  
Cancel the setting value, then set it again.  
For information about the cancellation procedure,  
refer to Section 4.2, "Calibration".  
Setup value error:  
C
Clear the error message by pressing the  
key.  
The upper limit value is set lower than the lower  
limit value, or HIGH CAL LOW CAL.  
Input the unacceptable value.  
Clear the wrong setup values and re-enter the correct  
values.  
Inconsistent ID unit serial data  
Serial numbers are not consistent between the ID unit  
and Measuring Unit.  
The ID unit has a unique number for each Measuring  
Unit. Always mount the ID unit that has the same serial  
number as the Measuring Unit to be used.  
Turn off the power and mount a correct ID unit.  
Turn off the power and connect the signal cable.  
Connect the Display Unit to the appropriate Measuring  
Unit.  
Signal cable is not connected.  
Incorrect measuring unit is connected.  
Laser does not scan.  
Turn off the power and connect the signal cable.  
Insert the short-circuiting pin.  
Contact the nearest dealer or Mitutoyo sales  
representative.  
Signal cable is not connected.  
Short-circuiting pin is not inserted in the remote  
interlock connector.  
Laser diode is deteriorated.  
Scanner motor is not running.  
Laser diode anomaly  
Using the laser diode at a high temperature reduces  
efficiency and accelerates deterioration in addition to  
drawing a large current. Take appropriate measures to  
cool the diode.  
Contact the nearest dealer or Mitutoyo sales  
representative.  
LASER EMISSION  
(LASER EMISSION LED is flashing.)  
The laser diode is forced to operate below  
a temperature outside the specified range.  
Laser diode begins to deteriorate.  
The dummy ID unit is installed.  
Internal circuit error.  
Replace the dummy ID unit with the ID unit supplied  
with the measuring unit.  
Contact the nearest dealer or Mitutoyo sales  
representative.  
Printer error  
Check the cable connection.  
Cable is not connected or broken.  
Communication conditions are not consistent.  
Setup value error:  
Check the cable connection.  
Cable is not connected or broken.  
When the printer is not used, set to  
in the basic  
setup.  
7 - 4  
No. 99MBC071A  
7. INSPECTION AND MAINTENANCE  
7.4 Troubleshooting and Remedies  
The following table shows the troubleshooting and remedies on the LSM system.  
Symptoms  
Possible causes  
Remedies  
The LSM does not start  
if the power is turned on.  
The power cord is not connected. AC  
power supply is off or failed.  
The fuse is blown out.  
Check the power cord and AC power  
supply.  
Replace a fuse after fixing the cause of  
blowout.  
Measurements are  
unstable, resulting in a  
poor accuracy.  
Warm-up of the system is insufficient.  
Warm up the system at least 20 to 30  
minutes.  
Take measures to avoid the system  
from being subjected those troubles.  
Measuring Unit is directly subjected to  
sunlight or air flow from the air  
conditioner.  
Contaminated protection glass.  
Clean the glass by referring to Section  
7.2. Measuring Unit”  
Vibration of workpiece.  
Set a larger number of scans.  
Laser diode power is reduced.  
Check the LASER EMISSION LED is  
flashing. If it does, contact Mitutoyo or  
the nearest sales representative.  
Measuring error persists  
even after calibration  
Contaminated protection glass.  
Clean the glass by referring to Section  
7.2. Measuring Unit”  
Statistical processing  
can not be achieved.  
Single-run measurement,  
continuous-run measurement,  
or zero-run measurement has not been  
performed.  
Perform the single-run measurement,  
continuous-run measurement,  
or zero-run measurement.  
STcommand is not sent through  
RS-232C.  
Send the STcommand.  
The system incorrectly  
operates.  
The system is electrically interfered.  
Make a positive grounding, and use a  
shielded-wire cable for the I/O analog  
interface. Lay this cable sufficiently  
away from the source of interference.  
The external power supply should be  
drawn from a line with little electrical  
interference.  
Measurement does not  
terminate while  
is  
The number of samples in the sample  
measurement is too large.  
C
Stop the measurement with the  
key and set a smaller number of  
samples.  
Check the setup value  
displayed.  
Under the use of abnormal value  
eliminating function the workpiece  
dimension is significantly different  
from the setup value.  
Measurement interval  
does not match the  
measuring conditions.  
Under the use of the abnormal value  
eliminating function the workpiece  
dimension is significantly different  
from the setup value.  
Check the setup value.  
No. 99MBC071A  
7 - 5  
7.5 Fuse replacement  
Before replacing a fuse, turn the power switch to OFF and unplug the power cord from the  
inlet for safety.  
Always use fuses that have the specified rating.  
Refer to the following diagram for the replacement procedure.  
The groove on the head  
of the fuse holder  
Screwdriver  
To replace a fuse, insert a  
screwdriver blade into the  
groove on the head of the fuse  
holder, turn the screwdriver  
counterclockwise as shown  
by the arrow, then remove the  
fuse holder cover.  
7 - 6  
No. 99MBC071A  
SPECIFICATIONS  
(DISPLAY UNIT)  
This chapter describes the specifications and supplied accessories of the  
LSM-6900 Display Unit.  
8
8.1 LSM-6900 Display Unit  
(1) Specifications  
Code No.  
Note 1, Note 2  
544-495 (mm/E)  
LSM-6900  
544-496 (mm/inch)  
Model No.  
Display unit  
16-digit dot-matrix type display (upper) + 11-digit 7-segment display (lower) and 7 guidance LEDs.  
Segment specification: 1 to 7 (1 to 3 for transparent objects) Edge specification : 1 to 255 edges  
Measuring functions  
Arithmetical average  
Moving average  
1 to 2048 times  
32 to 2048 times  
Averaging method  
Tolerance judgment ( NG, GO), Multi-limit selection (7 stages), Offset/zero-set, Mastering, Group  
judgment, Abnormal value elimination, Automatic workpiece detection, Setting the reference data,  
Data output, Sample measurement, Statistical processing , Simultaneous measurement, Automatic  
measurement with edge specification, Transparent object measurement (Segment: 1 to 3), Workpiece  
position display, Key entry prohibition, mm E changeover, Dual-gage calibration, Model number  
identification, Setting the resolution, Display of comma ( ) to mark the thousandth digit, Setting the  
number of blank-out digits, Setting the GO/NG judgment method, GO/NG judgment + analog output in  
the ready state, Setting the I/O port, Laser power deterioration monitoring.  
Remark: There are some restrictions on the combination of the above functions.  
Scanning control  
signal connector  
Standard accessory  
Remote interlock connector  
Power switch  
Standard accessory  
Key switch  
Standard interface unit  
Optional I/F  
Analog I/O interface, RS-232C, Footswitch  
To be additionally installed in the option slot: Either of the Second I/O Analog, BCD, and GP-IB  
¥ interfaces  
To be additionally installed in the dedicated slot: Digimatic Output Unit I/F  
Rated power supply  
Operating environment  
Operating altitude  
Storage environment  
Mass  
100 - 240 VAC 10%, 50/60 Hz, 40 VA  
0 to 40 C, 35 to 85% RH (without condensation)  
2000 m or lower  
-15 to + 65 C, 20 to 90% RH (without condensation)  
Approx. 5 kg  
Safety  
Compliance with EN61010-1(OVERVOLTAGE CATEGORY , POLLUTION DEGREE2)  
Note1 : This Code No. is a set Code No. of the Measuring Unit LSM-902 and the Display Unit LSM-6900.  
Note2 : Be sure to confirm that the Measuring Unit LSM-902 and the Display Unit LSM-6900 to be connected have the same serial numbers.  
If the serial number of the Measuring Unit is not consistent with that of the Display Unit, the measuring accuracy cannot be  
guaranteed.  
No. 99MBC071A  
8 - 1  
(2) Standard Accessories  
Part No.  
Item  
Quantity  
Power cord  
Note 1)  
Note 1)  
Note 1)  
1
934626  
GND lead wire (Green/Yellow)  
GND lead wire (Gray)  
1
02ADC020  
956042  
Short-circuiting pin for remote interlock connector (delivered as mounted on the display unit)  
Remote interlock connector (PJ-2, manufacturer: Sato Parts)  
1
1
1
214938  
02AGC401  
02AGC605  
02AGC606  
02AGC604  
99MBC071A  
Scan signal monitoring connector (PJ-2240-P)  
Fuse 1A (Time lag) (Available from UL, CSA)  
Fuse 1A (Time lag) (Available from SEMKO, BSI)  
Power key switch  
Note 2)  
Note 2)  
1
2
1
User's manual (English)  
Note 1, 2: Depending on delivered country.  
(3) Optional Accessories  
Part No.  
02AGC880  
02AGC910  
02AGC940  
02AGC840  
936937  
Item  
Second Analog I/O Interface  
BCD Interface  
GP-IB Interface  
Digimatic Output Unit interface (with two channels)  
Digimatic Output Unit cable  
02AGD600A  
02AGD600B  
02AGD600C  
223663  
Printer cable set: DPU-414-30B + PW-4007-J1 (100 VAC, for Japan)  
Printer cable set: DPU-414-30B + PW-4007-U1 (120 VAC, for U.S.A.)  
Printer cable set: DPU-414-30B + PW-4007-E1 (230 VAC, for Europe)  
Printer paper (10 rolls)  
937179T  
Footswitch  
8 - 2  
No. 99MBC071A  
8. SPECIFICATIONS (DISPLAY UNIT)  
(4) External view and dimensions  
335 (13.19")  
Approx.  
Min. R20 (.79")  
Unit: mm (inch)  
NOTE The signal cable may break if bent to a small radius of curvature. Refer to Exter-  
nal view and dimensionswhen installing the cables.  
The standared cables of this system are not robotic cables, which have a superb  
bending resistance.  
If high bending resistance is required, consult Mitutoyo.  
Special cables are available at request.  
No. 99MBC071A  
8- 3  
MEMO  
8 - 4  
No. 99MBC071A  
RESTRICTIONS ASSOCIATED  
WITH THE COMBINATION OF  
FUNCTIONS, TABLES OF  
THE BASIC SETUP MODES  
This chapter describes the restrictions associated with the particular  
combination of functions. It also describes the basic setup modes using  
tables.  
9
9.1 Restrictions Associated with the Particular Combination  
of Functions  
The following restrictions exist for function combinations.  
a. Restrictions on the combination of functions for single-unit measurement and single  
measurement are as follows:  
Functions  
combinations  
Edge specification  
Manual Automatic  
measure- measure-  
ment ment  
Trans-  
parent  
object  
measure-  
ment  
Automatic Abnormal Sample  
workpiece value measure-  
detection elimination ment  
Moving  
average judgment  
Group  
Edge  
specif-  
ication  
Manual  
measure-  
ment  
Automatic  
measure-  
ment  
Transparent object  
measurement  
Automatic workpiece  
detection  
Abnormal value  
elimination  
Sample measurement  
Moving average  
Group judgment  
Note: "o" indicates permitted combinations, and "-" indicates combinations that are not permitted.  
No. 99MBC071A  
9 - 1  
b. The following restrictions are applied to the combination of functions depending on the  
measuring method:  
Single measurement  
Simultaneous measurement  
Manual  
measurement  
Edge specification  
Automatic  
measurement  
Transparent object measurement  
Automatic workpiece detection  
Abnormal value elimination  
Sample measurement  
Moving average  
Group judgment  
Note: " " indicates permitted combinations under the restrictions shown in the a) section.  
"-" indicates combinations that are not permitted.  
9 - 2  
No. 99MBC071A  
9. RESTRICTIONS ASSOCIATED WITH THE COMBINATION OF FUNCTIONS, TABLES OF  
THE BASIC SETUP MODES  
9.2 List of Setup Modes  
Tables in the following are the list of setup modes. Use these tables to check the setup data.  
1. Make a check in the squares at the left of the mode number or in the setting content  
column that need to be set up.  
2. Fill in the setup values for the underlined part.  
3. If these setup values are frequently changed, make copies of these forms.  
9.2.1 List of basic setup modes  
Mode No.  
Setup item  
Setup contents  
Default setup  
B0  
a: Resolution (  
)
: 0/  
: 4/  
: 1/  
: 5/  
: 2/  
: 6/  
: 3/  
: 7  
b: Number of blank-out digits  
: No blank-out/  
: 1 digit/  
: 2 digits  
(
)
c: Mark of thousandth digit (  
d: Buzzer sound (  
)
: No mark/  
: Mark  
)
: Sounds at any event.  
: Sounds when key input is made  
(indicating acceptance or operation error).  
: Sounds when a NG measurement results.  
: Does not sound except a system error alarm.  
Note: System error alarm  
can not be prohibited.  
e. Display latch timer (  
)
sec.  
10  
B1  
a. Output in the ready state  
: Neither GO/NG judgment nor analog output is made/  
: Both GO/NG judgment nor analog output are made  
(
)
b. Analog output voltage at Err-0  
: Output voltage 0V/  
: Output voltage -5V  
: Output voltage +5V  
(
)
c. Message in the event of Err-0  
: Displays Err-0 .  
: Displays 0 .  
(
)
d. Message at the start of mea-  
surement (  
: Displays ------- .  
: Displays the previous data  
)
e. Method of average (  
)
: Arithmetic average /  
: Moving average  
f. Method of GO/NG judgment  
: Judges with the lower limit and upper limit  
: Judges by multi-limit selection  
(
)
: Judges with the target value + tolerance  
e : Method of using the target value and reference value (  
)
(
)
: Does not copy the target value on the reference value  
: Copies the target value on the reference value  
B2  
a. Workpiece type (  
)
: Opaque object  
: Transparent object  
b. Simultaneous measurement  
: Single measurement  
(
)
: Simultaneous measurement  
c. Method of segment designation  
: Segment specification  
: Edge specification  
(
)
No. 99MBC071A  
9 - 3  
Mode No.  
Setup item  
Setup contents  
Default setup  
B3  
a. Abnormal value elimination  
: Does not use /  
: Use.  
(
)
b. Automatic workpiece detection  
: Does not use.  
(
)
: Diameter detection /  
c: Number of scans  
: Position detection  
: 16 times /  
: 1 time  
d. Group judgment (  
)
: Does not use.  
: Uses.  
e. Setting the group judgment result output (  
)
: Does not output.  
: Outputs.  
B4  
a. RS-232C port  
: Uses for communication with PC  
(
)
: Uses as a printer port (GP-IB is also available)  
: Does not use. (GP-IB is also available)  
b. Baud rate (  
)
/
/
/
/
c. Data bits (  
)
: 8 bits/  
: 7 bits  
d. Parity check (  
)
: Does not use.  
: Even parity  
: Odd parity  
e. Delimiter (  
)
: CR + LF /  
: CR /  
: Uses.  
: LF  
f. line control (  
a. I/O RUN input (  
)
: Does not use.  
B5  
)
: Triggers single-run measurement  
: Triggers continuous-run measurement with term specification  
: Triggers continuous-run measurement  
b. I/O OFFS input (  
c. I/O GO output (  
a. Use of DCU (  
)
: Enables offset function.  
: Enables HOLD function.  
)
: GO output/  
: ACK output  
: STB output  
B6  
)
: Does not use.  
: Uses only OUTPUT-1.  
: Uses both OUTPUT-1 and OUTPUT-2.  
9.2.2 List of calibration functions  
Setup contents  
Setup item  
HIGH CAL  
Setup range  
Default setting  
Mode No.  
CAL  
: HIGH CAL gage  
=
Max.7 digits in the  
Cancel (0)  
positive direction only.  
LOW CAL  
: LOW CAL gage  
=
Max.7 digits in the  
Free (0)  
positive direction only.  
9.2.3 Reading in the amount of light  
Setup contents  
Mode No.  
Setup range  
Default setting  
Light amount detection  
: Automatically performs light amount detection.  
: Reading in the light amount.  
9 - 4  
No. 99MBC071A  
9. RESTRICTIONS ASSOCIATED WITH THE COMBINATION OF FUNCTIONS, TABLES OF  
THE BASIC SETUP MODES  
9.2.4 List of function setup modes  
Program No.:  
/
Setup contents  
Mode No.  
Setup item  
Segment  
Setup range  
Default setting  
1
F0  
: Segment No.  
=
Max. 7 positions  
specification*  
Edge specification*  
: Use of automatic measurement  
: Manual measurement  
1 to 2 at NONE  
2 to 5 at PIT  
: Automatic pitch measurement  
: Automatic diameter measurement  
2 to 3 at DIA  
3 to 4 at GAP  
: Automatic gap measurement  
: Start edge  
1 to 254  
2 to 255  
: Finish edge  
=
F1  
F2  
Measurement  
interval  
: Number of scans for averaging  
Arithmetic average (Guidance:  
Moving average (Guidance:  
=
)
1 to 2048  
32 to 2048  
512  
512  
)
Free (0)  
(abnormal value  
elimination)*  
: Lower abnormal limit  
: Upper abnormal limit  
: Abnormal count value  
=
=
=
Sign + max. 7 digits  
Sign + max. 7 digits  
0 to 999  
GO/NG judgment*  
: Lower limit value  
: Upper limit value  
Sign + max. 7 digits  
Sign + max. 7 digits  
Free (0)  
Free (0)  
=
=
: Multi-limit selection 1  
: Multi-limit selection 2  
: Multi-limit selection 3  
: Multi-limit selection 4  
: Multi-limit selection 5  
: Multi-limit selection 6  
=
=
=
=
=
=
Sign + max. 7 digits  
Sign + max. 7 digits  
Sign + max. 7 digits  
Sign + max. 7 digits  
Sign + max. 7 digits  
Sign + max. 7 digits  
Free (0)  
: Target value  
: Lower tolerance limit  
: Upper tolerance limit  
=
=
=
Sign + max. 7 digits  
Sign + max. 7 digits  
Sign + max. 7 digits  
F3  
F4  
Reference value*  
Offset  
: Reference value  
: Scale value  
=
=
Sign + max. 7 digits  
1 to 3  
Free (0)  
Free (0)  
: Offset value  
: Direction  
: Mastering value  
=
=
=
Sign + max. 7 digits  
0, 1  
Sign + max. 7 digits  
F5  
F6  
Data output  
condition  
: Data output condition  
: Periodic data output timer  
=
=
0 to 9  
0 to 999 sec  
Free (0)  
Free (1)  
Sample  
measurement  
: Number of samples  
: Statistical item  
=
0 to 999  
: Mean /  
:Minimum value /  
: Maximum value /  
: Range  
F7  
F8  
Automatic  
workpiece  
detection*  
(Position detection  
should be made in  
the positive  
: Number of measurement times =  
: Invalidation period =  
0 to 999  
0 to 9999  
Sign + max. 7 digits  
Sign + max. 7 digits  
Free (0)  
Free (0)  
ms  
: Lower detection limit  
: Upper detection limit  
=
=
direction only.)  
Group judgment*  
: Group size subject to judgment  
=
0 to 99  
: Statistical item applied for group judgment  
: Mean  
: Maximum value  
: Minimum value  
: Group lower limit  
: Group upper limit  
: Range  
=
=
Sign + max. 7 digits  
Sign + max. 7 digits  
* Varies depending on the basic set up.  
No. 99MBC071A  
9 - 5  
MEMO  
9 - 6  
No. 99MBC071A  
SERVICE NETWORK  
SERVICE NETWORK  
Mitutoyo America Corporation  
Mitutoyo Italiana S.R.L.  
Illinois Repair Service  
Corso Europa No.7, 20020 Lainate, Milano, ITALY  
TEL: (02)935781 FAX: (02)9373290  
958 Corporate Blvd., Aurora, IL. 60504, U.S.A.  
TEL: (630)820-3334 FAX: (630)820-2530  
Michigan Repair Service  
Mitutoyo Schweiz AG  
45001 Five Mile Rd., Plymouth, MI 48170, U.S.A.  
TEL: (734)459-2810 FAX: (734)459-0455  
Los Angeles Repair Service  
Steinackerstrasse 35, 8902 Urdorf-Zürich, SWITZERLAND  
TEL: (01)7361150 FAX: (01)7361151  
16925 East Gale Ave., City of Industry, CA 91745, U.S.A.  
TEL: (626)961-9661 FAX: (626)333-8019  
for Advanced Technical Support Service  
Indianapolis Metrology Center  
Mitutoyo (U.K.) Ltd.  
Joule Road, West Point Business Park, Andover,  
Hampshire SP10 3UX UNITED KINGDOM  
TEL: (01264)353123 FAX: (01264)354883  
TEL: (317)577-6070 FAX: (317)577-6080  
Boston Metrology Center  
Mitutoyo Asia Pacific Pte. Ltd.  
TEL: (978)692-7474 FAX: (978)692-9729  
Charlotte Metrology Center  
TEL: (704)875-8332 FAX: (704)875-9273  
Regional Headquarters  
24 Kallang Avenue, Mitutoyo Building, SINGAPORE 339415  
TEL: 6294-2211 FAX: 6299-6666  
Mitutoyo (Malaysia) Sdn. Bhd.  
Mitutoyo Canada Inc.  
2121 Meadowvale Blvd., Mississauga, Ont. L5N 5N1, CANADA  
TEL: (905)821-1261 to 3 FAX: (905)821-4968  
Suite G.2 Ground Floor, 2A Jalan 243, Section 51A 46100  
Petaling Jaya, Selangor Darul Ehsan, MALAYSIA  
TEL: 03-7845-9318 FAX: 03-7845-9346  
Mitutoyo Thailand Co.,Ltd.  
Mitutoyo Sul Americana Ltda.  
No.668/3, Moo7 Chaengwattana Rd. Anusaowaree, Bangkaen,  
Bangkok 10220, THAILAND  
TEL: (02)521-6130 to 5 FAX: (02)521-6136  
Representative Office  
AV. João Carlos da Silva Borges, 1240, CEP 04726-002 Santo  
Amaro P.O. Box 4255 São Paulo, BRASIL  
TEL: (011)5643-0000 FAX: (011)5641-3722  
Argentina Branch  
Indonesia:  
Av. Mitre 891/899 -C.P.(B1603CQI) Vicente Lopez-Pcia.  
Buenos Aires, ARGENTINA  
TEL: 021-526-0737 to 8 FAX: 021-526-0736  
Vietnam (Ho Chi Minh City):  
TEL: (011)4730-1433 FAX: (011)4730-1411  
TEL: (08)910-0485 to 6 FAX: (08)910-0487  
Vietnam (Hanoi):  
Mitutoyo Mexicana S.A. de C.V.  
Prol. Ind. Electrica #15 Col. Parq. Ind. Naucalpan C.P.53370,  
Naucalpan, Edo. de Mexico, MEXICO  
TEL: (04)934-7098 FAX: (04)934-7072  
Philippines:  
TEL: (02)842-9305 FAX: (02)842-9307  
TEL: 05-312-5612 FAX: 05-312-3380  
Mitutoyo South Asia Pvt. Ltd.  
Mitutoyo Meßgeräte GmbH  
Borsigstr. 8-10, 41469 Neuss F.R. GERMANY  
TEL: (02137)102-0 FAX: (02137)8685  
C-122, Okhla Industrial Area, Phase-,  
New Delhi-110 020, INDIA  
TEL: 011-6372091 to 2 FAX: 011-6372636  
Mitutoyo Polska Sp.z o.o.  
Mitutoyo Taiwan Co.,Ltd.  
ul. Minska, nr54-56, Wroclaw, POLAND  
TEL: (0048)71-3548350 FAX: (0048)71-3548355  
5th FL. No.123, Wu Kung First Road, Wu Ku Industrial Park,  
Taipei Hsien, TAIWAN, R.O.C.  
TEL: (02)2299-5266 FAX: (02)2299-2358  
Mitutoyo Nederland B.V.  
Postbus 550, Landjuweel 35, 3905 PE Veenendaal,  
NETHERLANDS  
TEL: 0318-534911 FAX: 0318-516568  
Mitutoyo Korea Corporation  
KOCOM Building 2F, #260-7, Yeom Chang-Dong, Kang Seo-Gu,  
Seoul, 157-040, KOREA  
TEL: (02)3661-5546 to 7 FAX: (02)3661-5548  
Mitutoyo Scandinavia A.B.  
Box 712, Släntvägen 6, 194 27 Upplands-Väsby, SWEDEN  
TEL:(07)6092135 FAX: (07)6092410  
Mitutoyo (Beijing) Liaison Office  
#1011, Beijing Fortune Bldg., No.5 Dong Sanhuan Bei-Lu  
Chaoyang District, Beijing 100004 P.R.CHINA  
TEL: 010-65908505 FAX: 010-65908507  
Mitutoyo Belgium N.V.  
Hogenakkerhoekstraat 8, 9150 Kruibeke, BELGIUM  
TEL: 03-254 04 04 FAX: 03-254 04 05  
Mitutoyo Measuring Instruments Co., Ltd.  
Shanghai:  
Mitutoyo France S.A.R.L.  
123, rue de la Belle Etoile, B.P. 50267-Z.I. Paris Nord II 95957  
Roissy CDG Cedex, FRANCE  
TEL: (01)49 38 35 00 FAX: (01)49 38 35 35  
Mitutoyo France S.A.R.L., Agence de Lyon  
TEL: (04) 78 26 98 07 FAX: (04) 72 37 16 23  
Mitutoyo France S.A.R.L., Agence de Strasbourg  
TEL: (03) 88 67 85 77 FAX: (03) 88 67 85 79  
Room B 11/F, Nextage Business Center No.1111 Pudong South  
Road, Pudong New District, Shanghai, 200120, P.R. CHINA  
TEL: 021-5830-7718 FAX: 021-5830-7717  
Suzhou:  
No.7 Bai He Street, Suzhou, P.R. CHINA  
TEL: 0512-7413510 FAX: 0512-7410603  
Mitutoyo Corporation  
20-1, Sakado 1-chome, Takatsu-ku, Kawasaki, Kanagawa 213-0012, Japan  
Cable: MITUTOYO Kawasaki Telex: 3842-118  
Phone: (044)813-8230 Fax: (044)813-8231  
Printed in Japan  

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