User’s Guide
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OMG-USB-DIO48
48 Channel Digital I/O Interface Board
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Manual No. M-3897
Content
INTRODUCTION.......................................................................................................... 1
OVERVIEW........................................................................................................................1
WHAT’S INCLUDED........................................................................................................1
INDUSTRY STANDARD RELAY RACK CABLES AND OPTIONS.................................1
INSTALLATION.......................................................................................................1
TECHNICAL DESCRIPTION..................................................................................... 2
SOFTWARE.......................................................................................................................2
3RD PARTY SOFTWARE SUPPORT ................................................................................2
ELECTRICAL CHARACTERISTICS..................................................................................3
BANKS AND PORTS.........................................................................................................5
SERIAL STRING...............................................................................................................5
50 PIN RIBBON CABLE PIN OUT ....................................................................................6
PROGRAMMING.......................................................................................................... 7
APPLICATION PROGRAMMERS INTERFACE (API) ....................................................7
PRESETTING AN OUTPUT PORT :.................................................................................7
INTERRUPTS:...................................................................................................................7
PORT CONFIGURATION:.................................................................................................8
RELATIVE ADDRESSING VS. ABSOLUTE ADDRESSING..............................................9
SPECIFICATIONS......................................................................................................12
ENVIRONMENTAL SPECIFICATIONS..........................................................................12
POWER CONSUMPTION................................................................................................12
MEAN TIME BETWEEN FAILURES (MTBF) .............................................................12
APPENDIX A - TROUBLESHOOTING..................................................................13
APPENDIX B - HOW TO GET ASSISTANCE......................................................14
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APPENDIX C - SILK-SCREEN.................................................................................15
APPENDIX D - COMPLIANCE NOTICES .............................................................16
FEDERAL COMMUNICATIONS COMMISSION STATEMENT....................................16
EMC DIRECTIVE STATEMENT...................................................................................16
FIGURES
Figure 1- Operating Conditions ..........................................................................3
Figure 2- Pull Up Resistors .................................................................................4
Figure 3- Bank and Ports .....................................................................................5
Figure 4- 50 Pin Header/Ribbon Cable Pin out................................................6
Figure 5- Absolute Byte Address (Same for any configuration)...................9
Figure 6- Relative Byte Address (Only applies to the given configuration)9
Figure 7- Absolute Bit Address (Same for any configuration)....................10
Figure 8- Absolute Bit Address (Same for any configuration)....................11
Figure 9- Bit Relative Address (Print and fill in for your configuration).12
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Introduction and Installation
Introduction
Overview
The OMG-USB-DIO48 provides six eight-bit ports that may be individually
configured as inputs or outputs.
What’s Included
The OMG-USB-DIO48 is shipped with the following items. If any of these items
is missing or damaged, contact the supplier.
·
·
·
·
OMG-USB-DIO48 Adapter
Software CD
5V Power Supply
USB A to B Cable, Part number CA179
Industry Standard Relay Rack Cables and Options
·
·
·
Part number CA135 for Edge Connection
Part number CA167 for IDC Connection
Part number TB07-50 pin terminal block
Installation
For proper operation install software first. To install the software place the CD in
your CD-ROM tray and the auto-run program will start. If auto-run is not
available browse the CD and choose “index.htm”. Choose Install Software at the
beginning of the CD. Select the Digital I/O software drivers and install SeaIO
prior to installing hardware. After installing the software, connect the power
adapter and USB cable to the OMG-USB-DIO48. In the event that the hardware
is installed first, the “Found new hardware wizard” will request a driver disk.
Insert the software CD and browse the SeaIO directory for the “SeaIO.inf” file. A
complete installation of the SeaIO suite is recommended by running setup. When
plugged in the device will light its enable LED once enumerated properly. Be sure
to follow these steps to insure that the
OMG-USB-DIO48 opens and enumerates properly.
OMG-USB-DIO48
Page 1
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Technical
Technical Description
The OMG-USB-DIO48 provides 48 channels of digital I/O configurable as inputs
or outputs. Applications include PC based control and automation of sensors,
switches, satellite antenna control systems, video and audio studio automation,
security control systems, and other industrial automation.
Software
The OMG-USB-DIO48 ships with the SeaI/O suite of Windows 98/NT/ME/2000
drivers. SeaI/O provides the user with a consistent and straightforward API,
allowing the developer to concentrate on the details of the application as
opposed to low level driver development. Popular development environments are
supported for application development. SeaI/O includes sample applications and
a utility for configuring the driver parameters under Windows, further simplifying
installation.
3rd Party Software Support
Third party software support for many HMI/MMI and other process control
software is included on the product installation CD. For the most up to date
OMG-USB-DIO48
Page 2
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Technical
Electrical Characteristics
Figure 1, below provides the electrical characteristics of each Input/Output. Each
port is buffered with a 74ABT245 octal bi-directional transceiver. Each input is
capable of sinking up to 64 mA, while each output can source up to 32 mA. The
OMG-USB-DIO48 requires a 5V power source and is shipped with a 5V power
supply rated at 2.4 A.
Recommended Operating Conditions
Min
0 V
Max
Input
Source
Sink
5.25 V
32 mA
64 mA
Electrical Characteristics
High Level Input Voltage
Low Level Input Voltage
Min 2 V
Max 0.8 V
High Level Output Voltage
Min 2 V at 32 mA
Typically 3.4 V at 3 mA
Low Level Output Voltage Max 0.55 V at 64 mA
Figure 1- Operating Conditions
OMG-USB-DIO48
Page 3
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Technical
Pull Ups
Ten pin bussed resistor packs are installed to provide pull-ups to the input ports.
These are installed on all ports. The pull-up resistor packs are rated at 10K ohms.
Figure 2 below provides the bussed resistor and corresponding port. The
resistors insure that no line is floating which is not connected. This provides
consistent biasing on all un-terminated lines.
Bussed Corresponding
Resistor
RP3
Port
Port A1
Port B1
Port C1
Port A2
Port B2
Port C2
RP2
RP1
RP6
RP5
RP4
Figure 2- Pull Up Resistors
OMG-USB-DIO48
Page 4
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Technical
Banks and Ports
The OMG-USB-DIO48 has two 50 pin headers. Each 50 pin header is a bank of
three ports, comprising a total of six eight bit ports. Each port is eight bits wide
and may be configured as an input or output port. Figure 3 below gives the bank
and port organization.
Bank 1 – P2
Bank 2 – P3
Port A1
Port B1
Port C1
Port A2
Port B2
Port C2
Figure 3- Bank and Ports
Serial String
Each device has an eight digit alphanumeric serial string stored in non-volatile
memory. On the Windows platforms, this number is used to give each unit a
separate identity. This identity allows the device to be moved to any USB port or
hub port on your computer while retaining its device number. If a device
becomes damaged and is replaced the new device should be given the same
serial string as the device it is replacing.
This string is stored in an EEPROM along with other critical information. This
EEPROM is read during enumeration. The device should not be unplugged
during its enumeration due to a remote possibility that the data in the EEPROM
could be corrupted if power is removed during a read/write cycle.
The control panel utility provides the capability to read or modify this string.
However, setting the same string for two units will cause the second unit to fail
enumeration, and make it invisible to the operating system. Should this occur,
unplug one unit and set the serial string for the other unit to a different string.
OMG-USB-DIO48
Page 5
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Technical
50 pin ribbon cable pin out
Each of the two 50 pin ribbon cable headers has the following pin out as shown
in Figure 4.
Description
Pin #
Port A
Port B
Port C
A0
A1
A2
A3
A4
A5
A6
A7
47
45
43
41
39
37
35
33
B0
B1
B2
B3
B4
B5
B6
B7
31
29
27
25
23
21
19
17
C0
C1
C2
C3
C4
C5
C6
C7
15
13
11
9
7
5
3
1
GND
+5V
All Even pins
49
Figure 4- 50 Pin Header/Ribbon Cable Pin out
OMG-USB-DIO48
Page 6
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Programming
Programming
Application Programmers Interface (API)
The SeaIO driver, API, and utilities have been included to provide control over
the hardware in Windows environments. The following section is designed to
help the customer understand the API connection to the actual I/O for the OMG-
USB-DIO48. Complete documentation of the API can be found in the SeaI/O
help file.
Presetting an Output Port:
Each port has an output register associated with it. This register may be written
and retains its value whether the port is configured as an input or an output. To
preset the value of an output port the program should write to the port when it is
configured as an input then configure it as an output. Inputs cannot be written to
with relative addressing, absolute addressing must be used. Refer to Relative
Addressing vs. Absolute Addressing for more information.
Interrupts:
Interrupt sampling can be set up in the API. Port A1 bit zero (0) is the interrupt
source (pin 47 of P2). Refer to the API section in the SeaI/O help file for more
information.
OMG-USB-DIO48
Page 7
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Programming
Port Configuration:
Each eight-bit port can be configured as inputs or outputs. The API provides a
set adapter state call to access the control words.
Note: The control panel also allows you to configure the device. Your program
can over ride the control panel configuration when executed, but the control
panel configuration will be the default on power up. The default settings are
based on the settings in the control panel application when last changed and
saved after re-booting.
OMG-USB-DIO48
Page 8
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Programming
Relative Addressing vs. Absolute Addressing
The SeaIO API makes a distinction between “absolute” and “relative”
addressing modes. In absolute addressing mode, the Port argument to the API
function acts as a simple byte offset from the base I/O address of the device. For
instance, Port #0 refers to the I/O address 0; Port #1 refers to the I/O address 1.
Relative addressing mode refers to input and output ports in a logical fashion.
With a Port argument of 0 and an API function meant to output data, the first
(0th) output port on the device will be utilized. Likewise, with a Port argument of
0 and an API function designed to input data, the first (0th) input port of the
device will be utilized.
In all addressing modes, port numbers are zero-indexed; that is, the first port is
port #0, the second port is #1, the third #2, and so on. The mapping of absolute
addressing will always be the same, however, mapping for relative addressing
will be dependent on the configuration due to the fact that this device is
configurable.
Given Bank 1, Port B2, Port A3 and Port C3 are all inputs and the rest of the ports
are outputs, Figure 5 gives the Absolute address, and Figure 6 gives the relative
address.
Bank 1 – P2 Bank 2 – P3
Address Port Address Port
0
1
2
A1
B1
C1
3
4
5
A2
B2
C2
Figure 5- Absolute Byte Address (Same for any configuration)
Bank 1 – P2 Bank 2 – P3
Address Port Address Port
0 (input) A1 0 (output) A2
1 (input) B1 3 (input) B2
2 (input) C1 1 (output) C2
Figure 6- Relative Byte Address (Only applies to the given configuration)
OMG-USB-DIO48
Page 9
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Programming
Figure 7 below gives the absolute address for each bit on this device.
Bank 1 – P2
Bank 2 – P3
Addres Port-Bit
Addres
Port-Bit
s
s
0
1
2
3
4
5
6
7
A1-0
A1-1
A1-2
A1-3
A1-4
A1-5
A1-6
A1-7
24
25
26
27
28
29
30
31
A2-0
A2-1
A2-2
A2-3
A2-4
A2-5
A2-6
A2-7
8
9
B1-0
B1-1
B1-2
B1-3
B1-4
B1-5
B1-6
B1-7
32
33
34
35
36
37
38
39
B2-0
B2-1
B2-2
B2-3
B2-4
B2-5
B2-6
B2-7
10
11
12
13
14
15
16
17
18
19
20
21
22
23
C1-0
C1-1
C1-2
C1-3
C1-4
C1-5
C1-6
C1-7
40
41
42
43
44
45
46
47
C2-0
C2-1
C2-2
C2-3
C2-4
C2-5
C2-6
C2-7
Figure 7- Absolute Bit Address (Same for any configuration)
OMG-USB-DIO48
Page 10
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Programming
Figures 8 and 9 are provided for the user to record their particular relative
addressing setup, provided its constant. Print this page and fill in the tables
starting in the top left corner of each and work from top to bottom, left to right.
Start with zero (0) on the first input and increment by one on each additional
input. Next move to outputs and again start with zero (0) and increment by one
on each additional output.
Bank 1 – P2
Bank 2 – P3
Address Port Address Port
A1
B1
C1
A2
B2
C2
Figure 8- Absolute Bit Address (Same for any configuration)
Bank 1 – P2
Address Port-Bit
Bank 2 – P3
Address Port-Bit
A1-0
A1-1
A1-2
A1-3
A1-4
A1-5
A1-6
A1-7
A2-0
A2-1
A2-2
A2-3
A2-4
A2-5
A2-6
A2-7
B1-0
B1-1
B1-2
B1-3
B1-4
B1-5
B1-6
B1-7
B2-0
B2-1
B2-2
B2-3
B2-4
B2-5
B2-6
B2-7
C1-0
C1-1
C1-2
C1-3
C1-4
C1-5
C1-6
C1-7
C2-0
C2-1
C2-2
C2-3
C2-4
C2-5
C2-6
C2-7
OMG-USB-DIO48
Page 11
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Specifications
Figure 9- Bit Relative Address (Print and fill in for your configuration)
Specifications
Environmental Specifications
Specification
Temperature Range
Operating
0º to 50º C
Storage
-20º to 70º C
(32º to 122º F)
10 to 90% R.H.
Non-Condensing
(-4º to 158º F)
10 to 90% R.H.
Non-Condensing
Humidity Range
Power Consumption
Supply line
Rating
+5 VDC
500 mA
Mean Time Between Failures (MTBF)
Greater than 150,000 hours. (Calculated)
OMG-USB-DIO48
Page 12
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Appendix A - Troubleshooting
Appendix A - Troubleshooting
Following these simple steps can eliminate most common problems.
Install software first. After installing the software then proceed to adding the
hardware. This places the required installation files in the correct locations.
1. Read this manual thoroughly before attempting to install the adapter in your
system.
2. Use Device Manager under Windows to verify proper installation.
3. Use the SeaIO control panel applet for card identification and configuration.
4. If these steps do not solve your problem, please call Omega Technical
Support, 1-800-DAS-IEEE. Our technical support is free and available from
8:30AM-6PM Eastern Time Monday through Friday.
OMG-USB-DIO48
Page 13
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Appendix B - How To Get Assistance
Appendix B - How To Get Assistance
Please refer to Troubleshooting Guide prior to calling Technical Support.
1. Begin by reading through the Trouble Shooting Guide in Appendix
A. If assistance is still needed please see below.
2. When calling for technical assistance, please have your user
manual and current adapter settings. If possible, please have the
adapter installed in a computer ready to run diagnostics.
3. Omega Engineering maintains a Home page on the Internet. Our
updates, and newest manuals are available via our FTP site that can
be accessed from our home page.
4. Technical support is available Monday to Friday from 8:30AM to
6:00PM Eastern time. Technical support can be reached at 1-800-
DAS-IEEE
RETURN AUTHORIZATION MUST BE OBTAINED FROM OMEGA BEFORE
RETURNED MERCHANDISE WILL BE ACCEPTED. AUTHORIZATION CAN
BE OBTAINED BY CALLING OMEGA CUSTOMER SERVICE AND
REQUESTING AN AUTHORIZED RETURN (AR) NUMBER.
OMG-USB-DIO48
Page 14
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Appendix C - Silk-Screen
Appendix C - Silk-Screen
OMG-USB-DIO48
Page 15
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Appendix D - Compliance Notices
Appendix D - Compliance Notices
Federal Communications Commission Statement
FCC - This equipment has been tested and found to comply with the limits for
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference. In such case the user will be required to correct the
interference at his own expense.
EMC Directive Statement
Products bearing the CE Label fulfill the requirements of the
EMC directive (89/336/EEC) and of the low-voltage directive
(73/23/EEC) issued by the European Commission.
To obey these directives, the following European standards must be met:
•
•
•
EN55022 Class A - “Limits and methods of measurement of radio
interference characteristics of information technology equipment”
EN55024 -'Information technology equipment Immunity characteristics
Limits and methods of measurement'
EN60950 (IEC950)
-
“Safety of information technology
equipment, including electrical business equipment”
Warning
This is a Class A Product. In a domestic environment this product may cause
radio interference in which case the user may be required to take adequate
measures.
Always use cabling provided with this product if possible. If no cable is
provided or if an alternate cable is required, use high quality shielded cabling to
maintain compliance with FCC/EMC directives.
OMG-USB-DIO48
Page 16
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WARRANTY/DIS CLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in m aterials and workm anship for a
period of 13 m o n t h s from date of purchase. OMEGA’s WARRANTY adds an additional one (1) m onth
grace period to the norm al o n e (1 ) ye a r p ro d u c t w a rra n t y to cover handling and shipping tim e. This
ensures that OMEGA’s custom ers receive m axim um coverage on each product.
If the unit m alfunctions, it m ust be returned to the factory for evaluation. OMEGA’s Custom er Service
Departm ent will issue an Authorized Return (AR) num ber im m ediately upon phone or written request.
Upon exam ination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no
charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, includ-
in g b u t n o t lim ite d to m is h a n d lin g , im p ro p e r in te rfa cin g , o p e ra tio n o u ts id e o f d e s ig n lim its ,
im proper repair, or unauthorized m odification. This WARRANTY is VOID if the unit shows evidence of
having been tampered with or shows evidence of having been damaged as a result of excessive corrosion;
or current, heat, m oisture or vibration; im proper specification; m isapplication; m isuse or other operating
conditions outside of OMEGA’s control. Com ponents which wear are not warranted, including but not
lim ited to contact points, fuses, and triacs.
O M EG A is p le a s e d t o o ff e r s u g g e s t io n s o n t h e u s e o f it s va r io u s p ro d u c t s . Ho w e ve r,
OMEGA neither assum es responsibility for any om issions or errors nor assum es liability for any
dam ages that result from the use of its products in accordance w ith inform ation provided by
OMEGA, either verbal or w ritten. OMEGA w arrants only that the parts m anufactured by it w ill be
a s s p e c if ie d a n d f r e e o f d e f e c t s . O M EG A M A KES N O OTHER WA RRA N TIES O R
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE,
AND ALL IMP LIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND
FITN ES S FO R A PA RTIC U LA R P U RP O S E A RE HEREBY D IS C LA IM ED. LIM ITATIO N O F
LIABILITY: The rem edies of purchaser set forth herein are exclusive, and the total liability of
OMEGA w it h re s p e c t t o t h is o rd e r, w h e t h e r b a s e d o n c o n t ra c t , w a rra n t y, n e g lig e n c e ,
in d e m n ific a t io n , s t ric t lia b ilit y o r o t h e rw is e , s h a ll n o t e xc e e d t h e p u rch a s e p ric e o f t h e
c o m p o n e n t u p o n w h ic h lia b ilit y is b a s e d . In n o e v e n t s h a ll O M EG A b e lia b le f o r
consequential, incidental or special dam ages.
CONDITIONS: Equipm ent sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Com ponent” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in m edical
applications or used on hum ans. Should any Product(s) be used in or with any nuclear installation or
activity, m edical application, used on hum ans, or m isused in any way, OMEGA assum es no responsibility
as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indem nify
OMEGA and hold OMEGA harm less from any liability or dam age whatsoever arising out of the use of the
Product(s) in such a m anner.
RETURN REQUESTS /INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Custom er Service Departm ent. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN
(AR) NUMBER FROM OMEGA’S CUS TOMER S ERVICE DEPARTMENT (IN ORDER TO AVOID
PROCESSING DELAYS). The assigned AR num ber should then be m arked on the outside of the return
package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.
FOR WARRANTY RETURNS, please have the
following inform ation available BEFORE
contacting OMEGA:
FOR NON-WARRANTY REPAIRS, consult OMEGA
for current repair charges. Have the following
inform ation available BEFORE contacting OMEGA:
1. Purchase Order number under which the product
was PURCHASED,
1. Purchase Order num ber to cover the COST
of the repair,
2. Model and serial num ber of the product under
warranty, and
3. Repair instructions and/or specific problem s
relative to the product.
2. Model and serial num ber of the product, and
3. Repair instructions and/or specific problem s
relative to the product.
OMEGA’s policy is to m ake running changes, not m odel changes, whenever an im provem ent is possible. This affords
our custom ers the latest in technology and engineering.
OMEGA is a registered tradem ark of OMEGA ENGINEERING, INC.
© Copyright 2002 OMEGA ENGINEERING, INC. All rights reserved. This docum ent m ay not be copied, photocopied,
reproduced, translated, or reduced to any electronic m edium or m achine-readable form , in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC.
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Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGA…Of Course!
TEMPERATURE
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies
Wire: Thermocouple, RTD & Thermistor
Calibrators & Ice Point References
Recorders, Controllers & Process Monitors
Infrared Pyrometers
PRESSURE, STRAIN AND FORCE
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Transducers & Strain Gages
Load Cells & Pressure Gages
Displacement Transducers
Instrumentation & Accessories
FLOW/LEVEL
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Rotameters, Gas Mass Flowmeters & Flow Computers
Air Velocity Indicators
Turbine/Paddlewheel Systems
Totalizers & Batch Controllers
pH/CONDUCTIVITY
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ pH Electrodes, Testers & Accessories
Benchtop/Laboratory Meters
Controllers, Calibrators, Simulators & Pumps
Industrial pH & Conductivity Equipment
DATA ACQUISITION
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Data Acquisition & Engineering Software
Communications-Based Acquisition Systems
Plug-in Cards for Apple, IBM & Compatibles
Datalogging Systems
Recorders, Printers & Plotters
HEATERS
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Heating Cable
Cartridge & Strip Heaters
Immersion & Band Heaters
Flexible Heaters
Laboratory Heaters
ENVIRONMENTAL
MONITORING AND CONTROL
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Metering & Control Instrumentation
Refractometers
Pumps & Tubing
Air, Soil & Water Monitors
Industrial Water & Wastewater Treatment
pH, Conductivity & Dissolved Oxygen Instruments
M3897/0303
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