Agilent Technologies Welding System 660MHz User Manual

Agilent 81130A 400/660MHz Pulse/Data Generator

Reference Guide

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Reference Guide

Agilent 81130A 400/660 MHz

Pulse/Data Generator

Part No. 81130-91021

Printed in Germany March 2000

Edition 1.0, E0300

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Notice

No part of this manual may be reproduced in any form or by any means

(including electronic storage and retrieval or translation into a foreign

language) without prior agreement and written consent from Agilent

Technologies Inc. as governed by United States and international

Notice

The material contained in this document is subject to change without

notice. Agilent Technologies makes no warranty of any kind with regard

to this material, including, but not limited to, the implied warranties of

merchantability and fitness for a particular purpose. Agilent

Technologies shall not be liable for errors contained herein or for

incidental or consequential damages in connection with the furnishing,

performance, or use of this material.

Warranty

This Agilent Technologies product has a warranty against defects in

material and workmanship for a period of three years from date of

shipment. During the warranty period, Agilent Technologies will, at its

option, either repair or replace products that prove to be defective. For

warranty service or repair, this product must be returned to a service

facility designated by Agilent Technologies. The Buyer shall pay Agilent

Technologies round-trip travel expenses. For products returned to

Agilent Technologies for warranty service, the Buyer shall prepay

shipping charges to Agilent Technologies and Agilent Technologies shall

pay shipping charges to return the product to the Buyer. However, the

Buyer shall pay all shipping charges, duties and taxes for products

returned to Agilent Technologies from another country.

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Notice

Agilent Technologies warrants that its software and firmware designated

by Agilent Technologies for use with an instrument will execute its

programming instructions when properly installed on that instrument.

Agilent Technologies does not warrant that the operation of the

instrument software, or firmware, will be uninterrupted or error free.

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting from

improper or inadequate maintenance by the Buyer, Buyer-supplied

software or interfacing, unauthorized modification or misuse, operation

outside of the environmental specifications for the product, or improper

site preparation or maintenance. No other warranty is expressed or

implied. Agilent Technologies specifically disclaims the implied

warranties of merchantability and fitness for a particular purpose.

Exclusive Remedies

The remedies supplied are the Buyer's sole and exclusive remedies.

Agilent Technologies shall not be liable for any direct, indirect, special,

incidental, or consequential damages, whether based on contract, tort or

any other legal theory.

Certification

Agilent Technologies certifies that this product met its published

specifications at the time of shipment. Agilent Technologies further

certifies that its calibration measurements are traceable to the United

States Institute of Standards and Technology, to the extent allowed by

the Institute's calibrating facility, and to the calibration facilities of other

International Standards Organization members.

Services and Support

Any adjustment, maintenance, or repair of this product must be

performed by qualified personnel. Contact your customer engineer

through your local Agilent Technologies Service Center. You can find a

list of local service representatives on the Web at:

http://www.agilent.com/Service/English/index.html

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Safety Summary

The following general safety precautions must be observed during all

phases of operation of this instrument. Failure to comply with these

precautions or with specific warnings elsewhere in this manual violates

safety standards of design, manufacture, and intended use of the

instrument. Agilent Technologies Inc. assumes no liability for the

customer's failure to comply with these requirements.

General

This product is a Safety Class 1 instrument (provided with a protective

earth terminal). The protective features of this product may be impaired

if it is used in a manner not specified in the operation instructions.

All Light Emitting Diodes (LEDs) used in this product are Class 1 LEDs

as per IEC 60825-1.

Environmental Conditions

This instrument is intended for indoor use in an installation category II,

pollution degree 2 environment. It is designed to operate at a maximum

relative humidity of 95% and at altitudes of up to 2000 meters. Refer to

the specifications tables for the ac mains voltage requirements and

ambient operating temperature range.

Before Applying Power

Verify that the product is set to match the available line voltage, the

correct fuse is installed, and all safety precautions are taken. Note the

instrument's external markings described under “Safety Symbols” on

page 8.

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Safety Summary

Ground the Instrument

To minimize shock hazard, the instrument chassis and cover must be

connected to an electrical protective earth ground. The instrument must

be connected to the ac power mains through a grounded power cable,

with the ground wire firmly connected to an electrical ground (safety

ground) at the power outlet. Any interruption of the protective

(grounding) conductor or disconnection of the protective earth terminal

will cause a potential shock hazard that could result in personal injury.

Fuses

Only fuses with the required rated current, voltage, and specified type

(normal blow, time delay, etc.) should be used. Do not use repaired fuses

or short-circuited fuse holders. To do so could cause a shock or fire

hazard.

Do Not Operate in an Explosive Atmosphere

Do not operate the instrument in the presence of flammable gases or

fumes.

Do Not Remove the Instrument Cover

Operating personnel must not remove instrument covers. Component

replacement and internal adjustments must be made only by qualified

service personnel.

Instruments that appear damaged or defective should be made

inoperative and secured against unintended operation until they can be

repaired by qualified service personnel.

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Safety Summary

Safety Symbols

Caution (refer to accompanying documents)

Protective earth (ground) terminal

In the manuals:

WARNING

CAUTION

The WARNING sign denotes a hazard. It calls attention to a

procedure, practice, or the like, which, if not correctly performed

or adhered to, could result in personal injury. Do not proceed

beyond a WARNING sign until the indicated conditions are fully

understood and met.

The CAUTION sign denotes a hazard. It calls attention to an operating

procedure, or the like, which, if not correctly performed or adhered to,

could result in damage to or destruction of part or all of the product. Do

not proceed beyond a CAUTION sign until the indicated conditions are

fully understood and met.

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About this Book

This guide provides reference information primarily for programming the

Agilent 81130A via remote control.

Chapter 1 “General Programming Aspects” on page 13 gives general

hints for programming instruments like the Agilent 81130A using SCPI

commands.

Chapter 2 “Programming Reference” on page 25 provides detailed

information on the SCPI commands supported by the instrument.

Chapter 3 “Specifications” on page 95 lists the instrument’s technical

specifications and provides exact definitions for the instrument’s

parameters.

For an introduction and information on the Agilent 81130A’s user

interface, please refer to the Quick Start Guide, p/n 81130-91020.

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About this Book

Conventions Used in this Book

This book uses certain conventions to indicate elements of the

Agilent 81130A’s user interface. The following table shows some

examples:

Softkeys

Press the MODE/TRG softkey to access the Mode/

Trigger screen.

Hardkeys

Press the MORE key to switch to the alternative

softkey layout.

Alternate Keys

Press SHIFT + 0 (ON/OFF1) to switch on output1.

The alternate key label—which is selected by

pressing the SHIFT key—is given in parentheses.

Screen Quotes

Entry Focus

Move the entry focus down to PULSE-PERIOD and

turn the knob to select INTERNAL PLL.

The highlight field, that can be moved with the

cursor keys, to change modes, parameters, or

parameter formats.

:VOLTage:HIGH 3V Full command for programming a 3 V high level.

The upper case letters represent the short form

of the command, which results in faster pro-

gramming times.

*RST

Common IEEE 488 command, to reset instru-

ment to default status.

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Contents

Notice ......................................................................................... 4

Safety Summary ......................................................................... 6

About this Book ......................................................................... 9

Chapter 1 General Programming Aspects

The GP-IB Interface Bus ......................................................... 14

Agilent 81130A Remote Control ............................................ 15

Programming Recommendations ............................................ 16

Common Command Summary ................................................. 18

Status Model ............................................................................ 19

Chapter 2 Programming Reference

Agilent 81130A SCPI Command Summary ............................ 26

Default Values, Standard Settings ......................................... 34

Programming the Instrument Trigger Modes ........................ 38

SCPI Instrument Command List ............................................ 42

Chapter 3 Specifications

Declaration of Conformity ...................................................... 96

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Contents

Agilent 81130A Specifications ............................................... 97

General ................................................................................................... 97

Timing Specifications ........................................................................... 99

Main Output Level Specifications ..................................................... 102

External Input, External Clock/PLL Reference Input .................... 103

Trigger Modes ...................................................................................... 105

Output Modes ...................................................................................... 106

Human Interface .................................................................................. 108

Memory ................................................................................................. 109

Remote Control ................................................................................... 109

Pulse Parameter Definitions ................................................ 111

xii

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1General Programming

Aspects

This chapter provides general information on writing GP-IB/SCPI

programs for instruments like the Agilent 81130A.

Detailed information on programming the Agilent 81130A can be found in

Chapter 2 “Programming Reference” on page 25.

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General Programming Aspects

The GP-IB Interface Bus

The GP Interface Bus is the interface used for communication between a

controller and an external device, such as the Agilent 81130A. The GP-IB

conforms to IEEE standard 488-1987, ANSI standard MC 1.1, and IEC

recommendation 625-1.

If you are not familiar with the GP-IB, please refer to the following

books:

• The Institute of Electrical and Electronic Engineers: IEEE Standard

488.1-1987, IEEE Standard Digital Interface for Programmable

Instrumentation.

• The Institute of Electrical and Electronic Engineers: IEEE Standard

488.2-1987, IEEE Standard Codes, Formats, and Common

Commands for Use with IEEE Standard 488.1-1987.

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General Programming Aspects

Agilent 81130A Remote Control

GP-IB Address

You can only set the GP-IB address from the front panel of the instrument

(refer to the Quick Start Guide).

The default GP-IB address is 10.

Modes of

Operation

The Agilent 81130A has two modes of operation:

• Local

The instrument is operated using the front panel keys.

• Remote

After receiving the first command or query via the GP-IB, the

instrument is put into remote state. The front panel is locked.

To return to local operating mode, press SHIFT (LOCAL).

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General Programming Aspects

Programming Recommendations

Here are some recommendations for programming the instrument:

• Start programming from the default setting. The common command

for setting the default setting is:

*RST

• Switch off the automatic update of the display to increase the

programming speed. The device command for switching off the

display is:

:DISPlay OFF

• The SCPI standard defines a long and a short form of the commands.

For fast programming speed it is recommended to use the short

forms. The short forms of the commands are represented by upper

case letters. For example the short form of the command to set 100 ns

delay is:

:PULS:DEL 100NS

• To improve programming speed it is also allowed to skip optional

subsystem command parts. Optional subsystem command parts are

depicted in square brackets, e.g.: set amplitude voltage of output 1:

[SOURce]:VOLTage[1][:LEVel][:IMMediate][:AMPLitude].

Sufficient to use: :VOLT 1.2V

• For the commands to set the timing and level parameters, except of

period/frequency, you can explicitly specify the output to be

programmed (for compatibility reasons). If there is no output

specified, the commands will set the default output 1.

So, for setting a high level of 3 Volts for output 1 the commands are:

:VOLT:HIGH 3V

:VOLT1:HIGH 3V

# sets high level of 3 V at out 1

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General Programming Aspects

Programming Recommendations

• It is recommended to test a new setting that will be programmed on

the instrument by setting it up manually.

Enable the outputs so that the instrument’s error check system is on

and possible parameter conflicts are immediately displayed.

When you have found the correct setting, then use this to create the

program. In the program it is recommended to send the command for

enabling outputs (for example, :OUTPut ON) as the last command.

• Selftest of the instrument can be invoked by the common command

*TST

• If it is important to know whether the last command is completed,

then send the common command

*OPC?

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General Programming Aspects

Common Command Summary

This table summarizes the IEEE 488.2 common commands supported by

the Agilent 81130A:

Command

Parameter Description

*CLS

–

Clear the status structure

*ESE

<0–255>

Set the Standard Event Status register mask

Read the state of the Standard Event Status enable register

Read the state of the Standard Event Status event register

Read the Instrument's Identification string

Read the complete Instrument Setting

*ESE?

*ESR?

*IDN?

*LRN?

*OPC

–

Set the Operation Complete bit when all pending actions

are complete

*OPC?

*OPT?

*RCL

*RST

–

Read the status of the Operation Complete bit

Read the installed options

<0–4>

Recall a complete Instrument Setting from memory

Reset the instrument to standard settings

Save the complete Instrument Setting to memory

Set the Service Request Enable Mask

Read the Service Request Enable Mask

Read the Status Byte

–

*SAV

<1–4>

*SRE

*SRE?

*STB?

*TRG

*TST?

*WAI

<0–255>

–

Trigger

Execute instrument’s selftest

Wait until all pending actions are complete

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General Programming Aspects

Status Model

QUESTIONABLE STATUS

Voltage Warning

Current Warning

Timing Warning

Frequency Warning

Pattern Warning

Status

Byte

OPERation Status

(NOT USED)

MAV

SRQ

Standard Event Status

Operation Complete

Query Error

Device Dependent Error

Execution Error

Command Error

Power On

The instrument has a status reporting system conforming to IEEE 488.2

and SCPI. The above figure shows the status groups available in the

instrument.

Each status group is made up of component registers, as shown in the

following figure.

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General Programming Aspects

Status Model

Condition Transition Event

Enable

Filters

Summary Bit

Hardware

and Firmware

condition

Latched

PTR NTR

Condition Register

A condition register contains the current status of the hardware and

firmware. It is continuously updated and is not latched or buffered. You

can only read condition registers. If there is no command to read the

condition register of a particular status group, then it is simply invisible

to you.

Transition Filters

Transition filters are used to detect changes of state in the condition

transition filter bits to detect positive transitions (PTR), negative

transitions (NTR) or both. Transition filters are therefore read/write

registers. They are unaffected by *CLS.

Event Register

An event register latches transition events from the condition register as

specified by the transition filters or records status events. Querying

(reading) the event register clears it, as does the *CLS command. There is

no buffering, so while a bit is set, subsequent transition events are not

recorded. Event registers are read only.

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General Programming Aspects

Status Model

Enable Register

The enable register defines which bits in an event register are included in

the logical OR into the summary bit. The enable register is logically

ANDed with the event register and the resulting bits ORed into the

summary bit. Enable registers are read/write, and are not affected by

*CLS or querying.

Although all status groups have all of these registers, not all status

groups actually use all of the registers. The following table summarizes

the registers used in the instrument status groups.

Registers in Group

Status Group

CONDition NTR

PTR

EVENt

ENABLe

√

QUEStionable

OPERation

Standard Event Status

Status Byte

√

1 Present, but not used. COND and EVEN always 0.

*ESR?

2 Use

3 Use

4 Use

5 Use

to query.

*ESE?

to query

*ESE

to set,

to query

*STB?

*SRE

*SRE?

to set,

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General Programming Aspects

Status Model

Status Byte

The status byte summarizes the information from all other status groups.

The summary bit for the status byte actually appears in bit 6 (RQS) of the

status byte. When RQS is set it generates an SRQ interrupt to the

controller indicating that at least one instrument on the bus requires

attention. You can read the status byte using a serial poll or *STB?

Bit

Description

Unused, always 0

QUESTionable Status Summary Bit

MAV—Message AVailable in output buffer

Standard Event Status summary bit

RQS; ReQuest Service

OPERation Status summary Bit, unused

Standard Event Status Group

Bit

Description

Operation Complete, set by *OPC

Unused, always 0

Query Error

Device Dependent Error

Execution Error

Command Error

Unused, always 0

Power On

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General Programming Aspects

Status Model

OPERation Status Group

This Status Group is not used in the instrument.

Bit

Description

Unused, always 0

Always 0

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General Programming Aspects

Status Model

QUEStionable Status Group

Bit

QUEStionable

Voltage warning

Current warning

Time warning

Unused, always 0

Frequency warning

Unused, always 0

Pattern warning

Unused, always 0

Unused, always

Unused, always 0

Always 0

The QUEStionable Status group is used to report warning conditions

amongst the voltage, current, pulse timing, frequency and pattern

parameters. Warnings occur when a parameter, although not outside its

maximum limits, could be causing an invalid signal at the output because

of the actual settings and uncertainties of related parameters.

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2Programming Reference

This chapter provides reference information on the following topics:

• “Agilent 81130A SCPI Command Summary” on page 26

• “Default Values, Standard Settings” on page 34

• “Programming the Instrument Trigger Modes” on page 38

• “SCPI Instrument Command List” on page 42

For general programming information, please refer to Chapter 1

“General Programming Aspects” on page 13.

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Programming Reference

Agilent 81130A SCPI Command Summary

Agilent 81130A SCPI Command

Summary

Command

Parameter

Description

see page

:ARM

(Trigger mode and source)

[:SEQuence[1] | :STARt]

[:LAYer[1]]

:LEVel

[:THReshold]

:TERMination

<value>

Set/read threshold level at EXT INPUT

Set/read the termination voltage at EXT IN-

PUT

:MODE

GATed | STARted

Set/read the trigger mode, if the source is

not IMMediate

:SENSe

POSitive | NEGative

EXT1| IMM | MAN

Set/read trigger on edge or gate on level

:SOURce

Set/read trigger source

(EXT INPUT| IMMediate | MAN key)

:INITiate

:CONTinuous

ON | OFF | 1 | 0

Starts or stops the instrument, if the arming

source is not IMMediate

:CHANnel

:MATH

OFF|DIGital

Set/read addition of channels of channels 1

& 2 at output 1

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Programming Reference

Agilent 81130A SCPI Command Summary

Command

Parameter

Description

see page

:DIGital

[:STIMulus]

:PATTern

:LOOP

:INFinite

[:STATe]

:STARt

ON | OFF | 1 | 0

Enables/Disables the infinite loop

SEGM1 | SEGM2 |

SEGM3 | SEGM4

Set/read the start of the infinite loop (the

segment to restart the output after the last

bit of the last used segment)

[:LEVel[1]]

[:COUNt]

:STARt

<value>

Set/read the segment loop count

SEGM1 | SEGM2 |

SEGM3 | SEGM4

Set/read the start segment for the counted

segment loop

:LENGth

1 | 2 | 3 | 4

Set/read the number of segments within the

segment loop

:PRBS

<base>

Set/read the PRBS base (the same for all

PRBS segments!)

:SEGMent[1|2|3|4]

:DATA[1|2]

<data>

Set/read pattern data

:LENGth

<segment-length>

Set/read the length of the segment (if the

length is increased, ‘0’ bits are appended)

:PRESet[1|2]

:TYPE[1|2]

[<n>,]<length>

Set preset pattern with frequency CLOCK

Set/read the type of the segment

DATA|

PRBS|HIGH|LOW

[:STATe]

:UPDate

OFF|ON|0|1

Switch PATTERN pulse-mode on or off

Update the hardware with pattern data

OFF|ON|ONCE

:SIGNal[1|2]

:FORMat

RZ | R1 | NRZ

Set/read data format of output channel

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Programming Reference

Agilent 81130A SCPI Command Summary

Command

Parameter

Description

see page

:DISPlay

[:WINDow]

[:STATe]

ON|OFF|1|0

Set/read frontpanel display state

:MMEMory

:CATalog?

:CDIRectory

:COPY

[A:]

Read directory of memory card

Change directory on memory card

[<name>]

<source>[,A:],<dest> Copy a file on memory card

[,A: ]

:DELete

:INITialize

:LOAD

<name>[,A:]

[A:[DOS]]

Delete a file from memory card

Initialize memory card to DOS format

:STATe

Load file from memory card to memory n

Store memory n to memory card

:STORe

:STATe

:OUTPut[1|2]

[:NORMal]

[:STATe]

OFF|ON|1|0

Set/read normal output state

:COMPlement

[:STATe]

Set/read complement output state

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Programming Reference

Agilent 81130A SCPI Command Summary

Command

Parameter

Description

see page

[:SOURce]

:CORRection[1|2]

:EDELay

[:TIMe]

<value>

Set/read channel delay deskew

:CURRent[1|2]

The CURRent and VOLTage subsystem can-

not be used at the same time. Use the :HOLD

command to select between them.

[:LEVel]

[:IMMediate]

[:AMPLitude]

:OFFSet

:HIGH

<value>

Set/read channel amplitude current

Set/read channel offset current

Set/read channel high-level current

Set/read channel low-level current

:LOW

:LIMit

:HIGH

<value>

Set/read maximum current limits

Set/read minimum current limits

Enable/Disable the current limits

Set/read frequency of pulses

:LOW

<value>

:STATe

ON|OFF|1|0

<value>

:FREQency

[:CW]

[:FIXed]

:AUTO

ONCE

Do a frequency measurement at CLK IN

:HOLD[1|2]

VOLT|CURR

Switch between VOLTage and CURRent

command subtrees

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Programming Reference

Agilent 81130A SCPI Command Summary

Command

Parameter

Description

see page

[:SOURce]

:PHASe[1|2]

[:ADJust]

:PULSe

<value>

Set/read channel phase

:DCYCle[1|2]

:DELay[1|2]

:HOLD

<value>

Set/read channel dutycycle

<value>

Set/read channel delay (to leading edge)

TIME|PRATio

Hold absolute delay|delay as period fixed

with varying frequency

:UNIT

S|SEC|PCT|DEG|

RAD

Set/read delay units

:HOLD[1|2]

WIDTh | DCYCle |

TDELay

Hold Width|Dutycycle|Trailing edge delay

fixed with varying frequency

:PERiod

<value>

ONCE

Set/read pulse period

:AUTO

Measure pulse period at CLK IN

Set/read trailing edge delay

:TDelay[1|2]

:TRANsition[1|2]

:UNIT

<value>

S|SEC|PCT

<value>

Set/read transition-time units

Set/read leading-edge transition

Set/read trailing-edge transition

[:LEADing]

:TRAiling

:TRIGger[1]

:MODE

<value>

CONTinuous | STARt Set/read the mode of the trigger output sig-

nal generation (ignored if not in pattern

mode)

:POSition

:VOLTage

1 | 2 | 3 | 4

Set/read the trigger output signal position

[:LEVel]

[:IMMediate]

TTL | PECL | SYM |

ECLGND | ECLN2V

Set/read TRIGGER OUTput levels

Set/read channel pulse-width

:WIDTh[1|2]

<value>

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Programming Reference

Agilent 81130A SCPI Command Summary

Command

Parameter

Description

see page

[:SOURce]

:ROSCillator

:SOURce

INTernal|EXTernal

<value>

Set/read PLL reference source

:EXTernal

:FREQuency

Set/read frequency of external PLL

reference. Value will be rounded to 1 MHz,

2 MHz, 5 MHz or 10 MHz.

:VOLTage[1|2]

[:LEVel]

[:IMMediate]

[:AMPLitude]

:OFFSet

:HIGH

<value>

Set/read channel amplitude voltage

Set/read channel offset voltage

Set/read channel high-level voltage

Set/read channel low-level voltage

:LOW

:LIMit

[:HIGH]

:LOW

<value>

Set/read maximum voltage limit

Set/read minimum voltage limit

Enable|Disable the voltage limits

<value>

:STATe

ON|OFF|1|0

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Programming Reference

Agilent 81130A SCPI Command Summary

Command

Parameter

Description

see page

:STATus

:OPERation

[:EVENt]?

:CONDition

:ENABle

Read Operation event register

Read Operation condition register

Set/Read Operation enable register

Numeric

:NTRansition

Set/Read Operation negative-transition

:PTRansition

:PRESet

Numeric

Set/Read positive-transition register

Clear and preset status groups

:QUEStionable

[:EVENt]?

Read Questionable event register

Read Questionable condition register

Set/Read Questionable enable register

:CONDition?

:ENABle

Numeric

:NTRansition

Set/Read Questionable negative-transition

:PTRansition

Numeric

Set/Read Questionable positive-transition

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Programming Reference

Agilent 81130A SCPI Command Summary

Command

Parameter

Description

see page

:SYSTem

:ERRor?

:KEY

Read error queue

Numeric

Simulate key press or read last key pressed

no function

:PRESet

:SECurity

[:STATe]

:SET

ON|OFF

Switch security on and off

Block data

Set/read complete instrument setting

Read SCPI compliance setting

:VERSion?

:WARNing

[:COUNt]?

:STRing?

:BUFFer?

Read number of active warnings

Read active warnings as concatenated string 89

Read maximum possible length of

concatenated string

:TRIGger

(Pulse mode and period source)

[:SEQuence [1]] | :STARt]

:COUNt

<value>

Set/read number of triggered periods to be

generated per ARM event (BURST period)

:PULSes[1|2]

<value>

Set/red the number of pulses within the trig- 92

gered periods at OUTput 1 or OUTput 2

:LEVel

:TERMination

:SOURce

<value>

Set/read termination voltage level at CLK IN 92

IMM | INT[1] | EXT2

Set/read trigger source (Immediate | PLL |

CLK IN)

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Programming Reference

Default Values, Standard Settings

Parameter

*RST, Default Values

:ARM

:LEVel

[:THReshold]

:TERM

+1.0 V

+0.0 V

:MODE

STARted

POS

:SENSe

:SOURce

:CONTinuous

:MATH

IMM

:INITiate

:CHANnel

:DIGital

OFF

:PATTern:

OFF

:LOOP:INFinite

:LOOP:INFinite:STARt

:LOOP

SEGM1

:LOOP:STARt

:LOOP:LENGth

:PRBS

SEGM1

:SEGMent:DATA

:SEGMent:LENGth

:SEGMent:PRESet

:SEGMent:TYPE

:UPDate

see page 49

32, 0, 0, 0

not applicable

DATA

:SIGNal

:FORMat

:DISPlay

:MMEMory

:CATatalog?

:CDIRectory

:COPY

not applicable

:DELete

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Programming Reference

Default Values, Standard Settings

Parameter

*RST, Default Values

:INITialize

:LOAD

not applicable

OFF

:STATe

:STORe

:OUTPut

:COMPlement

:EDELay

OFF

:CORRection

:CURRent

0.0 s

^{20 mA (50}Ω ^{into 50}Ω⁾

^0.0µ^{A (50}Ω ^{into 50}Ω⁾

^{+10 mA (50}Ω ^{into 50}Ω⁾

:OFFSet

:HIGH

:LOW

^{–10 mA (50}Ω ^{into 50}Ω⁾

:LIMit

[:HIGH]

:LOW

+10.0 mA

–10 mA

:STATe

OFF

:FREQuency

1.00 MHz

:AUTO

not applicable

:HOLD

:PHAS

:PULSe

VOLT

0.0

:DCYCle

:DELay

10.0% (derived from Width and Period)

0.00

:HOLD

:UNIT

TIME

SEC

WIDTh

:HOLD

:PERiod

:AUTO

not applicable

100 ns

:TDELay

:TRANsition

:HOLD

:UNIT

TIME

SEC

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Programming Reference

Default Values, Standard Settings

Parameter

*RST, Default Values

[:LEADING]

:TRAiling

0.8 ns (Agilent 81131A) or not applicable

:TRAiling:AUTO

:MODE

:TRIGger:

:WIDTh

STARt

:POSition

:VOLTage

TTL

100 ns

:ROSCillator

:VOLTage

:SOURce

INT

:EXTernal

:FREQuency

5 MHz

1.00 V

:OFFSet

:HIGH

:LOW

0.0 mV

500 mV

–500 mV

+500 mV

–500 mV

OFF

:LIMit

[HIGH]

:LOW

:STATe

:STATus

:SYSTem

:OPERation

:PRESet

:QUESTionable

:ERRor?

:KEY

not applicable

OFF

:PRESet

:SECurity

:SET

not applicable

“1992.0”

not applicable

:VERSion?

:WARN?

[:COUNt]

:STRing?

:BUFFer?

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Programming Reference

Default Values, Standard Settings

Parameter

*RST, Default Values

:TRIGger

:COUNt

:PULSes

:LEVel

:TERMination

0.0 V

INT

:SOURce

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Programming Reference

Programming the Instrument Trigger Modes

Programming the Instrument

Trigger Modes

The following figure shows the instrument’s arming/triggering model:

*RST or power on

Idle

Trigger system

initiated⁽¹⁾

no longer initiated⁽¹⁾

Initiated

(still) initiated⁽¹⁾

wait for Arm

completed # of Trigger

loops⁽²⁾

no longer initiated

Notes:

ARM conditions

satisfied

(1) The instrument is always initiated in CONTINUOUS modes.

The instrument is automatically initiated in MANual started/gated modes.

wait for Trigger

(2) 1 in Pulses Mode (same as :TRIGger:COUNt)

:TRIGger:COUNt in Continuous/Gated Mode

Maximum of :TRIGger:COUNt:PULSes1 and :TRIGger:COUNt:PULSes2

in Started Burst mode

Depends on sequence in Pattern Mode (may be infinite)

Trigger conditions

satisfied

For details of the

trigger count

You program the comprehensive triggering capabilities of the instrument

using the SCPI :ARM and :TRIGger subsystems. Using these two

command, refer to command subsystems you can program the operating modes of the

“:TRIG:COUN” on

page 89.

instrument which are set up using the MODE/TRG screen on the

frontpanel.

Use the :ARM subsystem to select the overall triggering mode of the

instrument (CONTINUOUS, STARTED, GATED , and the :TRIGger

)

subsystem to select the pulse period source, triggering and number of

pulse periods per :ARMevent (BURSTlength). In pattern mode the

pattern length is the sum of each used segment’s length.

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Programming Reference

Programming the Instrument Trigger Modes

Continuous

Set Continuous mode by arming the instrument from its internal PLL:

:ARM:SOURce IMMediate

Arm from internal PLL

Started

Set Started mode by arming the instrument on low to high level transition

from the EXT INPUT:

:ARM:SOURce EXTernal1

:ARM:MODE STARted

:ARM:SENSe POSitive

:ARM:LEVel:THReshold 1V

Arm from EXT INPUT

Start on the arm event

Arm on positive (high) level

Set EXT INPUT threshold

Gated

Set Gated mode by arming the instrument on levels from the EXT INPUT:

:ARM:SOURce EXTernal1

:ARM:MODE GATed

:ARM:SENSe POSitive

Arm from EXT INPUT

Select gated mode

Arm on positive level

Pulses

Set Pulses mode by setting the :TRIGger:COUNtto 1 so that a single

triggered pulse period is generated for every :ARM event. The trigger

source sets the pulse period:

:TRIGger:COUNt 1

:TRIGger:SOURce INTernal 1

:DIGital:PATTern OFF

Single pulse period per arm event

Pulse period from internal PLL

Disable pattern data.

Pulse period source

:TRIGger SOURce

INTernal[1]

EXTernal2

IMMediate

internal PLL

CLK-IN

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Programming Reference

Programming the Instrument Trigger Modes

Burst

Set Burst mode by setting the :TRIGger:COUNtto the burst count

required. The trigger source sets the pulse period for the pulses within

the burst (See table in “Pulses” on page 39).

:TRIGger:COUNt 16

:TRIGger:SOURce INTernal1

:DIGital:PATTern OFF

Burst of 16 pulse periods

Pulse period from internal PLL.

Disable pattern data

Pattern

Set Pattern mode by setting the

:DIGital[STIMulus]:PATTern:SEGMent[1|2|3|4]:LENGthto the

required pattern length, and switching on digital pattern data. The trigger

source sets the pulse period for the data pulses (See table in “Pulses” on

page 39):

#Pattern length 512

:DIGital[:STIMulus]:PATTern:SEGMent1:LENGth 512

:DIGital[:STIMulus]:PATTern:SEGMent2:LENGth 0

:DIGital[:STIMulus]:PATTern:SEGMent3:LENGth 0

:DIGital[:STIMulus]:PATTern:SEGMent4:LENGth 0

#Disable counted segment loop

:DIGital[:STIMulus]:PATTern:LOOP:COUNt 1

#Jump back to start of segment 1 after the last bit of the last

segment (here: segment 1)

:DIGital[:STIMulus]:PATTern:LOOP:INFinite[:STATe] ON

:DIGital[:STIMulus]:PATTern:LOOP:INFinite:STARt SEGM1

:TRIGger:SOURce INTernal1

:DIGital:PATTern ON

:DIGital:SIGNal1:FORMat NRZ

:ARM:MODE STARted

Pulse period from internal PLL

Enable pattern data

Set OUTPUT 1 data to NRZ

:ARM:SOURce EXT1

Switch to started by EXT1

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Programming Reference

Programming the Instrument Trigger Modes

Manually Starting and Gating

When starting and gating with the MAN key use the following commands:

STARTED

GATED

*TRG or :INITiate:CONTinuous ON to start the instrument

:INITiate:CONTinuous OFF to stop the instrument

:INITiate:CONTinuous ON to 'open the gate'

:INITiate:CONTinuous OFF to 'close the gate'

*TRG to gate for approx. 10ms

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Programming Reference

SCPI Instrument Command List

The following reference sections list the instrument commands in

alphabetical order. In addition to a command description, the attributes

of each command are described under the following headings. Not all of

these attributes are applicable to all commands. The commands are

conform to the IEEE 488.2 SCPI standard.

Command

Long

Shows the short form of the command.

Shows the long form of the command.

Most commands can be used in different forms:

Form

Set

The command can be used to program the instrument

Query

The command can be used to interrogate the instrument. Add a ? to

the command if necessary.

Event

The command performs a one-off action.

Parameter

The type of parameter, if any, accepted by the command. The minimum

and maximum value of numeric parameters can be accessed by the

option MINimum or MAXimum.

Parameter Suffix The suffixes that may follow the parameter.

Functional

Coupling

Any other commands that are implicitly executed by the command.

Value Coupling

Any other parameter that is also changed by the command.

Range Coupling Any other parameters whose valid ranges may be changed by the

command.

*RST value

The value/state following a *RST command.

Specified Limits The specified limits of a parameter.

Absolute Limits

Example

Some parameters can be programmed beyond their specified limits.

Example programming statements.

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Programming Reference

SCPI Instrument Command List

Command

Long

:ARM:LEV[:THR]

:ARM[:SEQuence[1] | :STARt][:LAYer]:LEVel[:THReshold]

Form

Set & Query

Numeric

Parameter

Parameter Suffix Vwith engineering prefixes.

*RST value

+1.0 V

Specified Limits –1.4 V to +3.7 V

Description

Use this command to program the triggering threshold of the EXT INPUT

connector.

:ARM:LEV 2.5V

Set EXT INPUT threshold to 2.5 V

Example

Command

Long

:ARM:LEV:TERM

:ARM[:SEQuence[1] | :STARt][:LAYer]:LEVel:TERMination

Form

Set & Query

Numeric

Parameter

Parameter Suffix Vwith engineering prefixes.

*RST value

+0.0 V

Specified Limits –2.1 V to +3.3 V

Description

Use this command to program the termination voltage compensation of

the EXT INPUT connector.

:ARM:LEV:TERM 1.0V

Set EXT INPUT termination voltage to 1.0 V

Example

Command

Long

:ARM:MODE

:ARM[:SEQuence[1] | :STARt][:LAYer]:MODE

Form

Set & Query

Parameter

*RST value

STARted | GATed

STARted

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Programming Reference

SCPI Instrument Command List

Description

Use this command to select

or mode.

STARTED GATED

In the gated mode, the instrument triggers as long as the arming signal is

above (:ARM:SENS POS), or below (:ARM:SENS NEG) the selected

threshold level (:ARM:LEV).

In started mode, the instrument triggers on positive edge

(:ARM:SENS POS) or negative edge (:ARM:SENS NEG).

Command

Long

:ARM:SENS

:ARM[:SEQuence[1] | :STARt][:LAYer]:SENSe

Form

Set & Query

Parameter

*RST value

Description

POSitive | NEGative

POS

Use this command to select the edge or trigger level for the arming

signal.

The instrument triggers at the positive or negative cycle of the arming

signal.

Command

Long

:ARM:SOUR

:ARM[:SEQuence[1] | :STARt][:LAYer]:SOURce

Form

Set & Query

Parameter

*RST value

Description

IMMediate | EXTernal1 | MANual

IMM

Use this command to select the triggering mode of the instrument by

selecting the source of the arming signal:

Triggering Source :ARM:SOURce

Mode

IMMediate

EXTernal1

MANual

Internal PLL

EXT INPUT

MAN key

Continuous

Triggered | Gated by: EXT IN

Triggered | Gated by: MANKey

Use :ARM:MODE STARTed|GATedto select the mode.

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Programming Reference

SCPI Instrument Command List

Command

Long

:INIT:CONT

:INITiate:CONTinuous

Set & Query

Form

Parameter

*RST value

Description

ON | OFF | 1 | 0

Use this command to enable/disable automatic restart of the instrument

(equal to start and stop the instrument). If :ARM:SOURceis set to

IMMediate, the value of :INITiate:CONTinuousis ignored.

Command

Long

:CHAN:MATH

:CHANnel:MATH

Set & Query

OFF | DIGital

OFF

Form

Parameter

*RST value

Description

Use this command to enable or disable digital channel addition in an

instrument with two Output channels installed.

With :CHAN:MATH DIGitalthe digital signals from both channels are

”xor’ed” (before the slopes are applied) at OUTPUT 1. The signal of

OUTPUT 2 can be used in parallel.

This allows you to for example to simulate single or repeated glitches.

Command

Long

:DIG:PATT:LOOP

:DIGital[:STIMulus]:PATTern:LOOP[:LEVel[1]][:COUNt]

Form

Set & Query

Numeric

Parameter

*RST value

Specified Limits 1 to 2^20

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Programming Reference

SCPI Instrument Command List

Description

Example

Use this command to set up a counted loop across one or more

segments.

If nested loops are used, the counted loop must be embedded into the

infinite loop completely.

To set up an infinite loop over segment 2 to segment 4 and a counted loop

across segment 2 and segment 3:

:ARM:SOUR EXT1

:ARM:MODE STAR

:ARM:SENS POS

Set arming source to EXT-IN

Set arming mode to started

Arm on positive level

:DIG:PATT:LOOP:INF:STAR SEGM2

:DIG:PATT:LOOP 100

Set jump destination to segment 2

Set number of repetitions of

segment2 and segment 3

Set start of counted loop

Set length of counted loop

Switch on PATTERN mode

:DIG:PATT:LOOP:STAR SEGM2

:DIG:PATT:LOOP:LENG 2

:DIG:PATT ON

Command

Long

:DIG:PATT:LOOP:INF

:DIGital[:STIMulus]:PATTern:LOOP:INFinite[:STATe]

Form

Set & Query

ON | OFF | 1 | 0

Parameter

*RST value

Description

Use this command to set up an infinite loop from the last used segment

to the destination segment.

The infinite loop is ignored, if :ARM:SOURceis IMMediate

(CONTINUOUS mode), since in continuous mode there has to be a jump

back to the start of the pattern (always from segment 4 to segment 1).

Example

To setup an infinite loop over segment 2 to segment 4:

:ARM:SOUR EXT1

:ARM:MODE STAR

:ARM:SENS POS

Set arming source to EXT-IN

Set arming mode to started

Arm on positive level

:DIG:PATT:LOOP:INF ON

:DIG:PATT:LOOP:INF:STAR SEGM2

:DIG:PATT:LOOP 1

:DIG:PATT ON

Enable infinite loop

Set jump destination to segment 2

Disable counted loop

Switch on PATTERN mode

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Programming Reference

SCPI Instrument Command List

Command

Long

:DIG:PATT:LOOP:INF:STAR

:DIGital[:STIMulus]:PATTern:LOOP:INFinite:STARt

Set & Query

Form

Parameter

*RST value

Description

SEGM1 | SEGM2 | SEGM3 | SEGM4 | 1 | 2 | 3 | 4

SEGM1

Use this command to set up the destination segment.

The infinite loop is ignored, if :ARM:SOURce is IMMediate

(CONTINUOUS mode), since in continuous mode there has to be a jump

back to the start of the pattern (always from segment 4 to segment 1).

Example

See previous example (page 46).

Command

Long

:DIG:PATT:LOOP:STAR

:DIGital[:STIMulus]:PATTern:LOOP[:LEVel[1]]:STARt

Form

Set & Query

Parameter

*RST value

Description

SEGM1 | SEGM2 | SEGM3 | SEGM4 | 1 | 2 | 3 | 4

SEGM1

Use this command to set the first segment within a counted loop. The

start of the counted loop must be within the infinite loop (if used).

Example

To set up an infinite loop over segment 2 to segment 4 and a counted loop

across segment 2 and segment 3:

:ARM:SOUR EXT1

:ARM:MODE STAR

:ARM:SENS POS

Set arming source to EXT-IN

Set arming mode to started

Arm on positive level

:DIG:PATT:LOOP:INF ON

:DIG:PATT:LOOP:INF:STAR SEGM2

:DIG:PATT:LOOP 100

Switch on infinite loop

Set jump destination to segment 2

Set number of repetitions of

segment2 and segment 3

Set start of counted loop

Set length of counted loop

Switch on PATTERN mode

:DIG:PATT:LOOP:STAR SEGM2

:DIG:PATT:LOOP:LENG 2

:DIG:PATT ON

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Programming Reference

SCPI Instrument Command List

Command

Long

:DIG:PATT:LOOP:LENG

:DIGital[:STIMulus]:PATTern:LOOP[:LEVel[1]]:LENGth

Form

Set & Query

1 | 2 | 3 | 4

Parameter

*RST value

Description

Use this command to set the number of segments to be repeated within

the counted loop.

Example

See previous example (page 47).

Command

Long

:DIG:PATT

:DIGital[:STIMulus]:PATTern[:STATe]

Form

Set & query

Parameter

*RST value

Description

ON | OFF | 1 | 0

OFF

Use this command to enable and disable PATTERN mode.

Command

Long

:DIG:PATT:PRBS

:DIGital[:STIMulus]:PATTern:PRBS

Form

Set & Query

Numeric

Parameter

*RST value

Specified Limits 7 to 15 (integer)

Description

Use this command to set up PRBS polynom for all PRBS segments on all

channels.

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Programming Reference

SCPI Instrument Command List

Example

To set up a repeating 2 –1 PRBS on OUTPUT 1:

:ARM:SOUR IMM

Set continuous mode

:DIG:PATT:SEGM1:LENG 1023

Set segment 1 pattern length (last

bit) to 1023

:DIG:PATT:SEGM2:LENG 0

:DIG:PATT:SEGM3:LENG 0

:DIG:PATT:SEGM4:LENG 0

:DIG:PATT:SEGM1:TYPE1 PRBS

Set segment 2 to be ignored

Set segment 3 to be ignored

Set segment 4 to be ignored

Set type of segment 1 on channel 1

to PRBS

:DIG:PATT:LOOP 1

:DIG:PATT:PRBS 10

:DIG:PATT ON

Disable segment looping

Set PRBS base to 10

Switch on PATTERN mode

Command

Long

:DIG:PATT:SEGM[1|2|3|4]:DATA[1|2]

:DIGital[:STIMulus]:PATTern:SEGMent[1|2|3|4]:DATA[1|2]

Form

Set & Query

<data>

Parameter

*RST value

Segment 1

Channel

[1|2]

Description

Bit 1

Bit 2

CH1 (OUTPUT 1)

CH2 (OUTPUT 2)

Segment 2 to Segment 4 set to all bits set to zero.

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Programming Reference

SCPI Instrument Command List

Description

Use this command to set or read a segment’s data of one or all channels

starting from Bit 1. The <data> is an arbitrary block of program data as

defined in IEEE 488.2 7.7.6.2, for example:

#1511213

Start of block

Length of the length of the data

Length of the data

11213 5 bytes of data

#2161000100010001000

Start of block

Length of the length of the data

Length of the data

10...00 16 bytes of data

#011213

Start of block

Replaces the data block length specification. Length is

calculated automatically.

11213 5 bytes of data

NOTE

The data length meets the same restrictions, than the segment length

(see page 52).

Example

:DIG:PATT:SEGM1:DATA #1511213

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Programming Reference

SCPI Instrument Command List

The instrument uses each byte of data set one Bit in the pattern memory.

If you don’t specify a particular channel, the lowest two bits of each byte

are used to set all three channels, and the top six bits are ignored. Note

that you can therefore use the ASCII characters ‘0’,‘1’,‘2’ and ‘3’, to

program Outputs 1 and 2 in binary:

DATA

CH2

CH1

OUTPUT2

OUTPUT1

ASCII

ignored

used

D7 D6 D5 D4 D3 D2

D1 D0

:DIG:PATT:SEGM1:DATA2 #1501011

If you specify a particular channel, the least significant bit of each byte is

used to set the selected channel, and the top seven bits are ignored. Note

that you can therefore use the ASCII characters ‘1’ and ‘0’ to set

individual bits to 1 and 0:

DATA

CH2

CH1

OUTPUT2

OUTPUT1

ASCII

ignored

LSB

D7 D6 D5 D4 D3 D2 D1

remains unchanged

remains unchange

:ARM:SOUR IMM

Set continuous mode

Example

:DIG:PATT:SEGM1:DATA1 #1501011

:DIG:PATT:SEGM1:LENG 5

:DIG:PATT ON

Set up pattern data for channel 1

Set pattern length (last bit) to 5

Switch on PATTERN mode

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Programming Reference

SCPI Instrument Command List

Command

Long

:DIG:PATT:SEGM[1|2|3|4]:LENG

:DIGital[:STIMulus]:PATTern:SEGMent[1|2|3|4]:LENGth

Form

Set & Query

Parameter

*RST value

Numeric

32, 0, 0, 0 (segment 1 = 32, segments 2, 3, and 4 = 0)

Specified Limits 0 to 65504

Description

Use this command to set up the number of bits within a segment. If a

segment is set to a length of 0, the segment will be skipped.

Restrictions:

• At least one segment’s length has to be > 0.

• The overall length of the pattern has to be <= 65504 and >= two times

segment length resolution.

• If at least one segment is used to generate a PRBS, the overall pattern

length has to be <= 32768.

• The segment length has a resolution that depends on the current set

frequency/period.

• The segment at the start of a counted loop has a minimum length of 2

times the resolution.

Segment Length Resolution

Pulse Period

(length must be multiple of ...)

< 3ns

3ns ... < 6ns

6ns ... < 12ns

12ns ... < 24ns

>= 24ns

NOTE

Every change of a segment length will cause the unused pattern data to

be overwritten (no undo!).

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Programming Reference

SCPI Instrument Command List

Command

Long

:DIG:PATT:SEGM[1|2|3|4]:PRES[1|2]

:DIGital[:STIMulus]:PATTern:SEGMent[1|2|3|4]:PRESet[1|2]

Form

Set

Parameter

*RST value

Not applicable

Specified Limits <n>

0 to 32768 (integer)

<length> 1 to 65504 (integer)

Description

Use this command to set up clock data starting from bit 1 with value 1.

The parameter <n> is used as the divider to generate a CLOCK÷n

sequence (squarewave if NRZ data is selected). The parameter <length>

determines the length of the segment.

n=0 Fill with 0

n=1 Fill with 1

n=2 Sequence = 101010101010101....

n=4 Sequence = 110011001100110....

n=6 Sequence = 111000111000111....

n=8 Sequence = 111100001111000....

and so on.

NOTE

The data length meets the same restrictions, than the segment length

(see page 52).

Command

Long

:DIG:PATT:SEGM[1|2|3|4]:TYPE[1|2]

:DIGital[:STIMulus]:PATTern:SEGMent[1|2|3|4]:TYPE[1|2]

Form

Set & Query

Parameter

*RST value

DATA | PRBS | HIGH | LOW

DATA

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Programming Reference

SCPI Instrument Command List

Description

Use this command to set the type of the segment for one channel.

If the segment type of one channel is set to PRBS the other channel may

not be set to DATA.

If at least one channel uses PRBS, then the segment type combination

used in this segment has to be used in every segment that shall generate a

PRBS.

Command

Long

:DIG:PATT:UPD

:DIGital[:STIMulus]:PATTern:UPDate

Set & query

Form

Parameter

*RST value

Description

ON | OFF | ONCE

Use this command to enable and disable the automatic updating of the

pattern generating hardware following a

:DIG:PATT:SEGM[1|2|3|4]:DATAcommand. Disable the automatic

updating if you want to set up new pattern data in the instrument without

affecting the pattern which is currently being generated. You can then

update the hardware with the new pattern data by sending a

:DIG:PATT:UPD ONCEcommand.

Command

Long

:DIG:SIGN[1|2]:FORM

:DIGital[:STIMulus]:SIGNal[1|2]:FORMat

Set & Query

Format

Parameter

RZ | NRZ | R1

Range Coupling Period, Frequency

*RST value

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Programming Reference

SCPI Instrument Command List

Description

Use this command to set and read the data format of channels 1 and 2

when using PATTERN mode. If you don’t specify a channel number in the

command, channel 1 is assumed.

Return to Zero. An RZ pulse is generated for each ‘1’ in

the data. You can vary the width, edges and levels of the

pulse.

Return to One. An R1 pulse is generated for each ‘0’ in

the data. You can vary the width, edges and levels of the

pulse.

NRZ

Non Return to Zero. A pulse of 100% dutycycle is

generated for each ‘1’ in the data. You can vary the

edges and levels of the pulse.

:DIG:SIGN:FORM NRZ

Set channel 1 data format to NRZ

Example

Command

Long

:DISP

:DISPlay[:WINDow][:STATe]

Set & Query

Form

Parameter

*RST value

Description

ON | OFF | 1 | 0

This command is used to turn the frontpanel display on and off.

Switching off the display improves the programming speed of the

instrument.

NOTE

*RST switches the display back on.

DISP OFF

Switch off the frontpanel display

Example

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SCPI Instrument Command List

Command

Long

:MMEM:CAT?

:MMEMory:CATalog?

Query

Form

Parameter

*RST value

Description

["A:"]

Not applicable

Use this command to get a listing of the contents of the currently

selected directory on the memory card. As there is only one memory card

slot, the parameter A: is optional. The information returned is:

<BYTES_USED>,<BYTES_FREE>{,<FILE_ENTRY>}

<bytes_used> The total number of bytes used on the memory card.

<bytes_free> The total number of bytes still available on the memory

card.

<file_entry>

String containing the name, type and size of one file:

"<FILE_NAME>,<FILE_TYPE>,<FILE_SIZE>"

NOTE

The <file_type> is always blank. A directory name has <file_size> = 0

Command

Long

:MMEM:CDIR

:MMEMory:CDIRectory

Event

Form

Parameter

*RST value

Description

["directory_name"]

Not applicable

Use this command to change the current directory on the memory card.

If you don’t specify a directory name parameter, the root directory is

selected.

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SCPI Instrument Command List

NOTE

Note that you cannot use DOS pathnames as directory names, you can

only select a directory name within the current directory.

Use the directory name ".." to move back to the parent directory of the

current directory, unless you are already in the root directory "\".

:MMEM:CDIR

:MMEM:CDIR ""PERFORM""

:MMEM:CDIR ""..""

Select root directory

Examples

Select directory "PERFORM"

Select parent directory

Command

Long

:MMEM:COPY

:MMEMory:COPY

Event

Form

Parameter

*RST value

Description

"filename"[,"A:"],"copyname"[,"A:"]

Not applicable

Use this command to copy an existing file filename in the current

directory to a new file copyname. If copyname is the name of a sub-

directory in the current directory, a copy of the file filename is made in

the sub-directory. Use ".." as copyname to copy a file into the parent

directory of the current directory.

:MMEM:COPY ""test1"",""test2""

:MMEM:COPY ""test1"",""..""

Copy test1 to test2

Examples

Copy test1 into parent directory

Command

Long

:MMEM:DEL

:MMEMory:DELete

Event

Form

Parameter

*RST value

Description

"filename"

Not applicable

Use this command to delete file filename from the currently selected

directory.

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SCPI Instrument Command List

Command

Long

:MMEM:INIT

:MMEMory:INITialize

Form

Event

Parameter

*RST value

Description

["A:"[,"DOS"]]

Not applicable

Use this command to initialize a memory card to DOS format.

CAUTION

Initializing a memory card destroys any existing data on the card.

Command

Long

:MMEM:LOAD:STAT

:MMEMory:LOAD:STATe

Event

Form

Parameter

*RST value

<n>,"filename"[,"A:"]

Not applicable

Specified Limits <n> = 0 to 4 (integer)

Description

Use this command to load a complete instrument setting from file

filename in the current directory into memory <n> in the instrument.

Memories 1 to 4 are the internal memories. Use memory 0 to load a

setting as the current instrument setting.

Examples

See next command

Command

Long

:MMEM:STOR:STAT

:MMEMory:STORe:STATe

Event

Form

Parameter

*RST value

<n>,"filename"[,"A:"]

Not applicable

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SCPI Instrument Command List

Specified Limits <n> = 0 to 4 (integer)

Description

Use this command to store a complete instrument setting from memory

<n> to file filename in the current directory on the memory card.

Memories 1 to 4 are the internal memories. Use memory 0 to store the

current instrument setting to a file.

:MMEM:LOAD:STAT 1,""FREQPERF""

:MMEM:LOAD:STAT 0,""AMPTEST""

:*SAV 2

:MMEM:STOR:STAT 2,""SETTING2""

:*RCL 3

Load FREQPERF into memory 1

Load AMPTEST as current setting

Save current setting in memory 2

Store memory 2 to file “SETTING2”

Recall memory 3 as current setting

Examples

Command

Long

:OUTP[1|2]

:OUTPut[1|2][:NORMal][:STATe]

Form

Set & Query

Parameter

*RST value

Description

Example

ON | OFF | 1 | 0

OFF

Use this command to switch the normal OUTPUTs on or off.

:OUTP1 ON

:OUTP2 OFF

Switch on OUTPUT 1

Switch off OUTPUT 2

Command

Long

:OUTP[1|2]:COMP

:OUTPut[1|2]:COMPlement[:STATe]

Form

Set & Query

Parameter

*RST value

Description

Example

ON | OFF | 1 | 0

OFF

Use this command to switch the complement OUTPUTs on or off.

:OUTP1:COMP ON

:OUTP2:COMP OFF

Switch on complement OUTPUT 1

Switch off complement OUTPUT 2

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SCPI Instrument Command List

Command

Long

:CORR[1|2]:EDELay

[:SOURce]:CORRection[1|2]:EDELay[:TIMe]

Form

Set & Query

Numeric

Parameter

Parameter suffix S with engineering prefixes.

*RST value

0.0 s

Specified Limits –25.0 ns to +25.0 ns

Description

Use this command to program the OUTPUT Deskew delay. This allows

you to deskew the OUTPUTS so that the zero-delay points of both

OUTPUT signals are the same at the device-under-test.

:CORR1:EDEL 0NS

:CORR2:EDEL 5.18NS

Set OUTPUT 1 DESKEW to 0

Example

Set OUTPUT 2 DESKEW to 5.18 ns

Command

Long

:CURR[1|2]

[:SOURce]:CURRent[1|2][:LEVel][:IMMediate][:AMPLitude]

Form

Set & Query

Numeric

Parameter

Parameter suffix A with engineering prefixes.

*RST value

20 mA (50 Ω into 50 Ω)

Specified Limits 3.8 V Outputs (50 Ω into short): max. 152 mA typical

3.0 V Outputs (50 Ω into short): max. 120 mA typical

Value coupling

Amplitude = High – Low

High – Low

Offset =

Range coupling Offset

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SCPI Instrument Command List

Description

Example

This command programs the amplitude current of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of current, you first have to

execute the [:SOURce]:HOLD CURRent command to enable the

[:SOURce]:CURRent subsystem.

The available current range is limited by the specified voltage limits.

:HOLD CURR

:CURR1 75MA

Enable CURRENT subsystem

Set OUTPUT 1 amplitude to 75 mA

Command

Long

:CURR[1|2]:OFFSet

[:SOURce]:CURRent[1|2][:LEVel][:IMMediate]:OFFSet

Form

Set & Query

Numeric

Parameter

Parameter suffix A with engineering prefixes.

*RST value

0.0 µA (50 Ω into 50 Ω)

Specified Limits 3.8 V Outputs (50 Ω into short): max. 152 mA typical

3.0 V Outputs (50 Ω into short): max. 120 mA typical

Value coupling

Amplitude = High – Low

High – Low

Offset =

Range coupling Amplitude

Description

This command programs the offset current of the OUTPUT signal. Note

that to set the OUTPUT levels in terms of current, you first have to

execute the [:SOURce]:HOLD CURRent command to enable the

[:SOURce]:CURRent subsystem

The available current range is limited by the specified voltage limits.

:HOLD CURR

:CURR1:OFF 50MA

Enable CURRENT subsystem

Set OUTPUT 1 offset to 50 mA

Example

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SCPI Instrument Command List

Command

Long

:CURR[1|2]:HIGH

[:SOURce]:CURRent[1|2][:LEVel][:IMMediate]:HIGH

Form

Set & Query

Numeric

Parameter

Parameter suffix A with engineering prefixes.

*RST value

+10 mA (50 Ω into 50 Ω)

Specified Limits 3.8 V Outputs (50 Ω into short): max. 152 mA typical

3.0 V Outputs (50 Ω into short): max. 120 mA typical

Value coupling

Amplitude = High – Low

High – Low

Offset =

Range coupling Low-level

Description

This command programs the High-level current of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of current, you first have to

execute [:SOURCE]:HOLD CURRent command to enable the

[:SOURCE]:CURRent subsystem.

The available current range is limited by the specified voltage limits.

:HOLD CURR

:CURR1:HIGH 150MA

Enable CURRENT subsystem

Example

Set OUTPUT 1 High-level to 150 mA

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SCPI Instrument Command List

Command

Long

:CURR[1|2]:LOW

[:SOURce]:CURRent[1|2][:LEVel][:IMMediate]:LOW

Form

Set & Query

Numeric

Parameter

Parameter suffix A with engineering prefixes.

*RST value

–10 mA (50 Ω into 50 Ω)

Specified Limits 3.8V Outputs (50 Ω into short): max. 152 mA typical

3.0V Outputs (50 Ω into short): max. 120 mA typical

Value coupling

Amplitude = High – Low

High – Low

Offset =

Range coupling High-level

Description

This command programs the Low-level current of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of current, you first have to

execute the [:SOURce]:HOLD CURRent command to enable the

[:SOURce]:CURRent subsystem.

The available current range is limited by the specified voltage limits.

:HOLD CURR

:CURR1:LOW 50 MA

Enable CURRENT subsystem

Example

Set OUTPUT 1 Low-level to 50 mA

Command

Long

:CURR[1|2]:LIM

[:SOURce]:CURRent[1|2]:LIMit[:HIGH]

Form

Set & Query

Numeric

Parameter

Parameter suffix A with engineering prefixes.

*RST value

+10.0 mA

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SCPI Instrument Command List

Description

Use this command to set/read the High-level current limit. If you switch

on current limiting, the High-level current cannot be set above the

programmed limit.

NOTE

The current is NOT limited by the OUTPUT hardware, this is a software

limit.

:HOLD CURR

:CURR1:LIM 50 MA

:CURR1:LIM:STAT ON

Enable CURRENT subsystem

Example

Set OUTPUT 1 High-level current limit to 50 mA

Switch on OUTPUT 1 limits

Command

Long

:CURR[1|2]:LIM:LOW

[:SOURce]:CURRent[1|2]:LIMit:LOW

Form

Set & Query

Numeric

Parameter

Parameter suffix A with engineering prefixes.

*RST value

Description

–10.0 mA

Use this command to set/read the Low-level current limit. If you switch

on current limiting, the Low-level current cannot be set below the

programmed limit.

NOTE

The current is NOT limited by the OUTPUT hardware, this is a software

limit.

:HOLD CURR

:CURR1:LIM:LOW -50MA

:CURR1:LIM:STAT ON

Enable CURRENT subsystem

Example

Set OUTPUT 1 Low-level current limit to – 50mA

Switch on OUTPUT 1 limits

Command

Long

:CURR[1|2]:LIM:STAT

[:SOURce]:CURRent[1|2]:LIMit:STATe

Set & Query

Form

Parameter

ON | OFF | 1 | 0

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SCPI Instrument Command List

*RST value

Description

OFF

This command switches the output limits on or off. When you switch on

the output limits cannot program the output-levels beyond the

programmed limits, until you switch off the output-limits. The limits

apply whether you program High/Low levels or Amplitude/Offset levels.

NOTE

You can switch the limits on and off in both the

[:SOURce]:CURRent and the [:SOURce]:VOLTage

subsystems

but the current and voltage limits are not enabled/ disabled

independently. The voltage and current limits are always enabled/

disabled together.

:HOLD CURR

Enable CURRENT subsystem

Example

:CURR1:LIM 50MA

:CURR1:LIM:LOW -50MA

:CURR1:LIM:STAT ON

Set OUTPUT 1 High-level current limit to 50 m

Set OUTPUT 1 LOW-level current limit to –50mA

Switch on OUTPUT 1 limits

Command

Long

:FREQ

[:SOURce]:FREQuency[:CW][:FIXed]

Form

Set & Query

Numeric

Parameter

Parameter Suffix Hz with engineering prefixes, or MHZ for Megahertz.

*RST value

1.00 MHz

Specified limits Agilent 81131A: 1 kHz to 400 MHz

Agilent 81132A: 1 kHz to 660 MHz

Value coupling

Period =

Frequency

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SCPI Instrument Command List

Description

Use this command to set/read the pulse frequency. Select the frequency

source for the pulse frequency using :TRIGger:SOURce. The currently

selected source is programmed by this command. Note that the specified

limits and available resolution depend on the selected source.

You cannot set the pulse frequency if you have selected the CLK IN

connector as the frequency source (:TRIG:SOUR EXT).

:TRIG:SOUR INT

:FREQ 75MHz

Select internal PLL as pulse trigger

Set pulse frequency to 75 MHz

Example

Command

Long

:FREQ:AUTO

[:SOURce]:FREQuency[:CW][:FIXed]:AUTO

Form

Event

Parameter

*RST value

Description

ONCE

Not applicable

Use this command to measure the frequency at the CLK IN connector. If

the CLK IN connector is the selected pulse frequency source, you can

then read the measured value with :FREQ?

:TRIG:SOUR EXT2

:FREQ:AUTO ONCE

:FREQ?

Select ext CLK IN as pulse trigger

Measure frequency at CLK IN

Query pulse frequency

Example

Command

Long

:HOLD

[:SOURce]:HOLD

Set & Query

VOLTage | CURRent

VOLT

Form

Parameter

*RST value

Description

Use this command to enable either of the [:SOURce]:VOLTageor

[:SOURce]:CURRent subsystems.

You can control the signal levels of the instrument OUTPUTs in terms of

voltage or current.

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SCPI Instrument Command List

Command

Long

:PHAS[1|2]

[:SOURce]:PHASe[1|2][:ADJust]

Set & Query

Form

Parameter

Numeric

Parameter suffix DEGor RAD. A parameter without a suffix is interpreted as RAD.

*RST value

0.0

Specified limits 0 to 360° constrained by delay and period limits.

Value coupling

Phase

× Period

Delay =

360

Functional

coupling

Programming the pulse phase also executes [:SOURce]:PULSe:HOLD

PHASeso that the pulse phase is held constant when the signal frequency

is changed.

Description

Use this command to set/read the relative phase-delay of the output

signal. This is equivalent to setting an absolute or percentage pulse-delay

with [:SOURce]:PULSe:DELay.

If you want the phase delay to remain constant when the pulse period is

varied (rather than the absolute pulse delay) use

[:SOURce]:PULSe:DELay[1|2]:HOLD PRATio.

:PULS:DEL1 500NS

:PHAS2 180 DEG

:PULS:DEL1:HOLD TIM

:PULS:DEL2:HOLD PRAT

Set OUTPUT 1 delay to 500ns

Example

Hold OUTPUT 1 delay constant with varying perio

Set OUTPUT 2 phase to 180

Hold OUTPUT 2 phase constant with varying period

Command

Long

:PULS:DCYC[1|2]

[:SOURce]:PULSe:DCYCle[1|2]

Set & Query

Form

Parameter

Numeric

Parameter suffix PCT

*RST value

10.0% (derived from Width and Period)

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SCPI Instrument Command List

Specified limits 0.1 – 99.9%, depends on Width & Period.

Value coupling

Duty Cycle

Width =

Period

100

Description

Example

Use this command to program the dutycycle of the pulse signal. If you

want to set an absolute pulse-width use

[:SOURce]:PULSe:WIDTh[1|2].

If you want the pulse dutycycle to remain constant when the pulse period

is varied (rather than the absolute pulse width use)

[:SOURce]:PULSe:HOLD[1|2] DCYCle

:PULS:DCYC1 25PCT

:PULS:HOLD1 DCYC

Set OUTPUT 1 dutycycle to 25%

Hold dutycycle constant with varying period

Command

Long

:PULS:DEL[1|2]

[:SOURce]:PULSe:DELay[1|2]

Set & Query

Form

Parameter

Numeric

Parameter suffix Swith engineering prefixes. You can change the default unit using

[:SOURce]:PULSe:DELay[1|2]:UNIT.

*RST value

0.0

Specified limits 0 to 3.00 µs

Value coupling

Delay

Period

Phase =

× 360

× 100

Delay

Period

Delay% =

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SCPI Instrument Command List

Description

Example

Use this command to set/read the pulse-delay. Delay is the time between

the start of the pulse period and the start of the leading-edge of the pulse.

If you want the pulse-delay to remain constant when the pulse period is

varied (rather than the phase-delay) use

[:SOURce]:PULSe:DELay[1|2]:HOLD TIME.

:PULS:DEL1 500NS

:PHAS2 180 DEG

:PULS:DEL1:HOLD TIME

Set OUTPUT1 delay to 500 ns

Set OUTPUT 2 phase to 180

Hold OUTPUT 1 delay constant with

varying period

:PULS:DEL2:HOLD PRAT

Hold OUTPUT 2 phase constant with

varying period

Command

Long

:PULS:DEL[1|2]:HOLD

[:SOURce]:PULSe:DELay[1|2]:HOLD

Form

Set & Query

TIME | PRATio

TIME

Parameter

*RST value

Description

Use this command to set/read the coupling between the pulse period and

the pulse-delay:

TIME

The absolute pulse-delay is held fixed when the pulse period is

varied (Pulse phase varies).

PRATio

The pulse phase-delay (delay as ratio of period) is held fixed

when the pulse period is varied. (Pulse-delay varies).

:PULS:DEL1 500ns

:PHAS2 180DEG

:PULS:DEL1:HOLD TIME

:PULS:DEL2:HOLD PRAT

Set OUTPUT 1 delay to 500ns

Example

Set OUTPUT 2 phase to 180

Hold OUTPUT 1 delay constant with varying period

Hold OUTPUT 2 phase constant with varying period

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SCPI Instrument Command List

Command

Long

:PULS:DEL[1|2]:UNIT

[:SOURce]:PULSe:DELay[1|2]:UNIT

Form

Set & Query

Parameter

*RST value

Description

S | SEC | PCT | DEG | RAD

SEC

Use this command to set/read the default units for the pulse-delay

parameter. The default unit of a parameter is the unit used when the

parameter is programmed to a value without a unit suffix.

:PULS:DEL1:UNIT PCT

:PULS:DEL1 50

Set OUTPUT 1 delay unit to %

Example

Set OUTPUT 1 delay to 50% of period

Command

Long

:PULS:HOLD[1|2]

[:SOURce]:PULSe:HOLD[1|2]

Set & Query

Form

Parameter

*RST value

Description

WIDTh | DCYCle | TDELay

WIDTh

Use this command to set whether the pulse-width, the pulse-dutycycle or

the pulse trailing-edge delay is held constant when the pulse period is

changed.

:PULS:DEL:HOLD1 TIME

:PULS:DEL 20NS

Hold OUTPUT 1 delay fixed when frequency varies

Set OUTPUT 1 delay to 20ns

Example

:PULS:HOLD1 DCYC

Hold OUTPUT 1 Dutycycle fixed when frequency

varies

:PULS:DCYC 25PCT

Set OUTPUT 1 Dutycycle to 25%

Command

Long

:PULS:PER

[:SOURce]:PULSe:PERiod

Set & Query

Form

Parameter

Numeric

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SCPI Instrument Command List

Parameter Suffix Swith engineering prefixes.

*RST value

1 µs

Specified limits Agilent 81131A: 2.5 ns to 1 ms

Agilent 81132A: 1.5 ns to 1 ms

Value coupling

Frequency =

Period

Description

Example

Use this command to set/read the pulse period. Select the pulse period

source using :TRIGger:SOURce. The currently selected source is

programmed by this command. Note that the specified limits and

available resolution depend on the selected source.

You cannot set the pulse period if you have selected the CLK IN

connector as the frequency source (:TRIG:SOUR EXT2).

:TRIG:SOUR INT

:PULS:PER 25NS

Select internal PLL as pulse trigger

Set pulse frequency to 25 ns

Command

Long

:PULS:PER:AUTO

[:SOURce]:PULSe:PERiod:AUTO

Form

Event

Parameter

*RST value

Description

ONCE

Not applicable

Use this command to measure the period at the CLK IN connector. If the

CLK IN connector is the selected pulse period source, you can then read

the measured value with :PULS:PER?

:TRIG:SOUR EXT2

:PULS:PER:AUTO ONCE

:PULS:PER?

Select ext CLK IN as pulse trigger

Measure period at CLK IN

Query pulse period

Example

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SCPI Instrument Command List

Command

Long

:PULS:TDEL[1|2]

[:SOURce]:PULSe:TDELay[1|2]

Set & Query

Form

Parameter

Numeric

Parameter Suffix S with engineering prefixes.

*RST value

100 ns

Specified Limits Agilent 81131A: 1.25 ns to 999.9 µs

Agilent 81132A: 0.75 ns to 999.9 µs

Description

Example

Use this command to program the delay of the trailing-edge of the pulse

relative to the start of the pulse period. This is an alternative method of

programming the pulse-width.

:PULS:DEL1 500NS

Set OUTPUT 1 delay to 500 ns

:PULS:DEL1:HOLD TIME

:PULS:TDEL1 750NS

Hold OUTPUT 1 delay constant with varying period

Set OUTPUT 1 trailing delay to 750 ns

Command

Long

:PULS:TRAN[1|2]:UNIT

[:SOURce]:PULSe:TRANsition[1|2]:UNIT

Form

Set & Query

S | SEC | PCT

SEC

Parameter

*RST value

Description

Use this command to set the default units for the pulse transition-times.

The default unit is used when the parameter is programmed to a value

without a unit suffix.

Command

Long

:PULS:TRAN[1|2]

[:SOURce]:PULSe:TRANsition[1|2][:LEADing]

Form

Set & Query

Numeric

Parameter

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SCPI Instrument Command List

Parameter suffix Swith engineering prefixes

*RST value

0.8 ns

Specified limits Agilent 81131A: 0.8 ns or 1.6 ns

Parameter

coupling

Trailing-edge = Leading-edge fixed coupled

Description

Use this command to set/read the transition-time of the pulse leading-

edge. Note that the leading and trailing edges of the pulse have to fit

within the defined pulse-width.

:PULS:TRAN1 1.6NS

Set OUTPUT 1 leading edge to 1.6 ns

Example

NOTE

Selectable transition time is only available with Agilent 81131A.

Command

Long

:PULS:TRAN[1|2]:TRA

[:SOURce]:PULSe:TRANsition[1|2]:TRAiling

Form

Set & Query

Numeric

Parameter

Parameter suffix Swith engineering prefixes.

*RST value

0.8 ns

Specified limits Agilent 81131A: 0.8 ns or 1.6 ns

Parameter

coupling

Trailing-edge = Leading-edge fixed coupled

Description

NOTE

Use this command to set/read the transition-time of the pulse trailing-

edge. Note that the leading and trailing edges of the pulse have to fit

within the defined pulse-width.

Selectable transition time is only available with Agilent 81131A.

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SCPI Instrument Command List

Command

Long

:PULS:TRIG[1]:MODE

[:SOURce]:PULSe:TRIGger[1]:MODE

Set & Query

Form

Parameter

*RST value

Description

CONTinuous | STARt

STARt

Use this command to set/read the TRIGGER OUT generation mode in

pattern mode.

Command

Long

:PULS:TRIG[1]:POS

[:SOURce]:PULSe:TRIGger[1]:POSition

Form

Set & Query

Parameter

*RST value

Description

1 | 2 | 3 | 4

Use this command to set/read the TRIGGER OUT position in pattern

mode. The specified value selects a segment number for the

Agilent 81130A.

Command

Long

:PULS:TRIG[1]:VOLT

[:SOURce]:PULSe:TRIGger[1]:VOLTage[:LEVel][:IMMediate]

Form

Set & Query

Parameter

*RST value

TTL | PECL | SYM | ECLGND | ECLN2V

TTL

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SCPI Instrument Command List

Description

Use this command to set/read the output levels at the TRIGGER OUT

connector.

Termination

Voltage

Termination

Resistor

Value

High Level

Low Level

Ω

TTL

2,5V

4,2V

3,0V

Ω

PECL

3,3V

Ω

SYM

0,5V

–0.5V

–1,7V

Ω

ECLGND

ECLN2V

–0,8V

Ω

–2,0V

Command

Long

:PULS:WIDT[1|2]

[:SOURce]:PULSe:WIDTh[1|2]

Set & Query

Form

Parameter

Numeric

Parameter suffix S with engineering prefixes

*RST value

100 ns

Specified Limits Agilent 81131A: 1.25 ns to 999.9 µs

Agilent 81132A: 0.75 ns to 999.9 µs

Description

Example

Use this command to program the width of the pulse signal. If you want

to set width as dutycycle use [:SOURce]:PULSe:DCYCle[1|2].

If you want the pulse-width to remain constant when the pulse period is

varied (rather than the dutycycle) use [:SOURce]:PULSe:HOLD[1|2]

WIDTh.

:PULS:WIDT1 50NS

:PULS:HOLD1 WIDTH

Set OUTPUT 1 pulse width to 50 ns

Hold pulse-width constant with varying period

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Programming Reference

SCPI Instrument Command List

Command

Long

:ROSC:SOUR

[:SOURce]:ROSCillator:SOURce

Set & Query

Form

Parameter

*RST value

Description

INTernal | EXTernal

INT

Use this command to set/read the reference source for the PLL. If you

select the external reference (CLK IN connector) you can choose to use a

1 MHz, 2 MHz, 5 MHz or 10 MHz reference signal using

:ROSC:EXT:FREQ.

INTernal

EXTernal

Lock the PLL to its internal reference

Lock the PLL to a reference signal at the CLK IN connector. The exter-

nal reference signal can be 1, 2, 5 or 10 MHz.

:ROSC:SOUR EXT

:ROSC:EXT:FREQ 10 MHZ

Set external PLL reference (CLK IN)

Example

Set expected PLL reference frequency

to 10 MHz

Command

Long

:ROSC:EXT:FREQ

[:SOURce]:ROSCillator:EXTernal:FREQuency

Form

Set & Query

Numeric

5 MHz

Parameter

*RST value

Specified limits 1 MHz, 2 MHz , 5 MHz or 10 MHz

Description

Use this command to set/read the expected reference frequency for the

PLL at the CLK IN connector. The external reference can be a 1, 2, 5 or 10

MHz signal. Note that if you program any value other than the specified

values, the value will be set to the nearest of the specified values.

:ROSC:SOUR EXT

:ROSC:EXT:FREQ 10MHZ

Set external PLL reference (CLK IN)

Example

Set expected PLL reference frequency to 10 MHz

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Programming Reference

SCPI Instrument Command List

Command

Long

:VOLT[1|2]

[:SOURce]:VOLTage[1|2][:LEVel][:IMMediate][:AMPLitude]

Form

Set & Query

Numeric

Parameter

Parameter suffix Vwith engineering prefixes.

*RST value

1.00 V

Specified Limits Agilent 81131A: 0.10 Vpp to 3.80 Vpp

Agilent 81132A: 0.10 Vpp to 2.50 Vpp

Value coupling

Amplitude

High = Offset +

Amplitude

Low = Offset –

Range coupling Offset

Description

This command programs the amplitude voltage of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of voltage, you first have to

execute the [:SOURce]:HOLD VOLTagecommand to enable the

[:SOURce]:VOLTage subsystem.

The available voltage range is limited by the specified current limits.

:HOLD VOLT

:VOLT1 2V

Enable VOLTAGE subsystem

Set OUTPUT 1 amplitude to 2 V

Example

Command

Long

:VOLT[1|2]:OFFSet

[:SOURce]:VOLTage[1|2][:LEVel][:IMMediate]:OFFSet

Form

Set & Query

Numeric

Parameter

Parameter suffix V with engineering prefixes.

*RST value

0.0 mV

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Programming Reference

SCPI Instrument Command List

Specified Limits Agilent 81131A: –1.95 V to 3.75 V

Agilent 81132A: –1.95 V to 2.95 V

Value coupling

Amplitude

High = Offset +

Amplitude

Low = Offset –

Range coupling Amplitude

Description

This command programs the offset voltage of the OUTPUT signal. Note

that to set the OUTPUT levels in terms of voltage, you first have to

execute the [:SOURce]:HOLD VOLTagecommand to enable the

[:SOURce]:VOLtage subsystem.

The available voltage range is limited by the specified current limits.

:HOLD VOLT

:VOLT1:OFF -800MV

Enable VOLTAGE subsystem

Example

Set OUTPUT 1 offset to –800mV

Command

Long

:VOLT[1|2]:HIGH

[:SOURce]:VOLTage[1|2][:LEVel][:IMMediate]:HIGH

Form

Set & Query

Numeric

Parameter

Parameter suffix Vwith engineering prefixes.

*RST value

500 mV

Specified Limits Agilent 81131A: –1.90 V to 3.80 V

Agilent 81132A: –1.90 V to 2.50 V

Value coupling

Amplitude = High – Low

High – Low

Offset =

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Programming Reference

SCPI Instrument Command List

Range coupling Low-level

Description

This command programs the High-level voltage of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of voltage, you first have to

execute the [:SOURce]:HOLD VOLTagecommand to enable the

[:SOURce]:VOLTage subsystem.

The available voltage range is limited by the specified current limits.

:HOLD VOLT

:VOLT1:HIGH 2V

Enable VOLTAGE subsystem

Example

Set OUTPUT 1 high level voltage to 2 V

Command

Long

:VOLT[1|2]:LOW

[:SOURce]:VOLTage[1|2][:LEVel][:IMMediate]:LOW

Form

Set & Query

Numeric

Parameter

Parameter suffix V with engineering prefixes.

*RST value

–500 mV

Specified Limits Agilent 81131A: –2.00 V to 3.70 V

Agilent 81132A: –2.00 V to 2.90 V

Value coupling

Amplitude = High – Low

High – Low

Offset =

Range coupling High-level

Description

This command programs the Low-level voltage of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of voltage, you first have to

execute the [:SOURce]:HOLD VOLTagecommand to enable the

[:SOURce]:VOLTage subsystem.

The available voltage range is limited by the specified current limits.

:HOLD VOLT

:VOLT1:LOW 500MV

Enable VOLTAGE subsystem

Example

Set OUTPUT 1 low-level to 500mV

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Programming Reference

SCPI Instrument Command List

Command

Long

:VOLT[1|2]:LIM

[:SOURce]:VOLTage[1|2]:LIMit[:HIGH]

Form

Set & Query

Numeric

Parameter

Parameter suffix Vwith engineering prefixes.

*RST value

Description

+500 mV

Use this command to set/read the High-level voltage limit. If you switch

on voltage limiting, the High-level voltage cannot be set above the

programmed limit. Note that the voltage is NOT limited by the OUTPUT

hardware, this is a software limit.

:HOLD VOLT

:VOLT1:LIM 2V

:VOLT1:LIM:STAT ON

Enable VOLTAGE subsystem

Set OUTPUT 1 High-level limit to 2 V

Switch on OUTPUT 1 limits

Example

Command

Long

:VOLT[1|2]:LIM:LOW

[:SOURce]:VOLTage[1|2]:LIMit:LOW

Form

Set & Query

Numeric

Parameter

Parameter suffix Vwith engineering prefixes.

*RST value

Description

–500 mV

Use this command to set/read the Low-level voltage limit. If you switch

on voltage limiting, the Low-level voltage cannot be set below the

programmed limit. Note that the voltage is NOT limited by the OUTPUT

hardware, this is a software limit.

:HOLD VOLT

:VOLT1:LIM:LOW 0V

:VOLT1:LIM:STAT ON

Enable VOLTAGE subsystem

Set OUTPUT 1 Low-level voltage

Switch on OUTPUT 1 limits

Example

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Programming Reference

SCPI Instrument Command List

Command

Long

:VOLT[1|2]:LIM:STAT

[:SOURce]:VOLTage[1|2]:LIMit:STATe

Set & Query

Form

Parameter

*RST value

Description

ON | OFF | 1 | 0

OFF

This command switches the output limits on or off. When you switch on

the output limits cannot program the output-levels beyond the

programmed limits, until you switch off the voltage-limits. The limits

apply whether you program High/Low levels or Amplitude/Offset levels.

NOTE

You can switch the limits on and off in both the [:SOURce]:CURRent

and the [:SOURce]:VOLTagesubsystems but the current and voltage

limits are not enabled/ disabled independently. The voltage and current

limits are always enabled/disabled together.

:HOLD VOLT

:VOLT1:LIM 2V

:VOLT1:LIM:LOW 0V

:VOLT1:LIM:STAT ON

Enable VOLTAGE subsystem

Example

Set OUTPUT 1 High level voltage limit to 2

Set OUTPUT 1 Low-level voltage limit to 0

Switch on OUTPUT 1 limits

Command

:STATus:OPERation

This command tree accesses the OPERationstatus group. The

OPERationstatus group is not used by the instrument therefore this

command tree is redundant.

:STATus:OPERation[:EVENt]?

:STATus:OPERation:CONDition?

:STATus:OPERation:ENABle

:STATus:OPERation:NTRansition

:STATus:OPERation:PTRansition

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Programming Reference

SCPI Instrument Command List

Command

Long

:STATus:PRESet

Form

Event

*RST value

Description

Not Applicable

This command

• Clears all status group event-registers

• Clears the error queue

• Presets the status group enable-, PTR-, and NTR-registers as follows:

Status Group

Preset value

0000000000000000

0111111111111111

0000000000000000

0111111111111111

0000000000000000

OPERation

ENABle

PTR

NTR

QUEStionable

ENABle

PTR

NTR

Command

:STATus:QUEStionable

This command tree accesses the QUEStionable status group. The

QUEStionable status group contains warning bits for voltage, current,

time and frequency parameters. A warning occurs when the output signal

could be out of specification due to the combined specification

uncertainties of many parameters, although all parameters are set within

their individually specified limits. If a parameter is set outside its

specified limits an error is generated.

The following commands are used to access the registers within the

status group:

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Programming Reference

SCPI Instrument Command List

1. :STATus:QUEStionable[:EVENt]?

Form

Query

*RST value

Description

Not Applicable

This command reads the event register in the QUEStionable status

group.

2. :STATus:QUEStionable:CONDition?

Form

Query

*RST value

Description

Not Applicable

This command reads the condition register in the QUEStionable

status group.

3. :STATus:QUEStionable:ENABle

Form

Set & Query

Numeric

Parameter

*RST value

Specified

limits

Not affected by *RST

0 – 32767

Description

This command sets or queries the enable register in the

QUEStionable status group.

4. :STATus:QUEStionable:NTRansition

Form

Set & Query

Numeric

Parameter

*RST value

Specified

limits

Not applicable

0 – 32767

Description

This command sets or queries the negative transition register in

the QUEStionable status group.

5. :STATus:QUEStionable:PTRansition

Form

Set & Query

Numeric

Parameter

*RST value

Specified

limits

Not applicable

0 – 32767

Description

This command sets or queries the positive transition register in the

QUEStionable status group.

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Programming Reference

SCPI Instrument Command List

Command

Long

:SYST:ERR?

:SYSTem:ERRor?

Query

Form

*RST value

Description

Not Applicable

Use this command to read the instrument error queue. The instrument

error queue can store up to 30 error codes on a first-in-first-out basis.

When you read the error queue, the error number and associated

message are put into the instrument's output buffer.

If the queue is empty, the value 0 is returned, meaning No Error. If the

queue overflows at any time, the last error code is discarded and

replaced with -350meaning Queue overflow.

:SYS:ERR?

Query for errors

Example

Output example:

-222 "Data out of range" overlap at output 1: Width>Period

The above message is an example of a customized description. Generic

descriptions are available in the SCPI 1995 Command Reference, items

21.8.4 to 21.8.11.

Send ":SYST:WARN:STR?". Alternatively, the HELP key shows the

current errors and warnings and their description on the instruments

display.

Command

Long

:SYST:KEY

:SYSTem:KEY

Set & Query

Numeric

Form

Parameter

Parameter suffix No suffix allowed

*RST value

Not Applicable

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Programming Reference

SCPI Instrument Command List

Specified limits

No.

Key Description

255

No key pressed (Query only)

DATA ENTRY 0

DATA ENTRY 1

DATA ENTRY 2

DATA ENTRY 3

DATA ENTRY 4

DATA ENTRY 5

DATA ENTRY 6

DATA ENTRY 7

DATA ENTRY 8

DATA ENTRY 9

DATA ENTRY .

DATA ENTRY +/–

Cursor Up

Cursor Down

Cursor Left

Cursor Right

MAN

STORE

HELP

SHIFT

Softkey 1

Softkey 2

Softkey 3

Softkey 4

NANO

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Programming Reference

SCPI Instrument Command List

No.

Key Description

MICRO EGA

MILLI KILO

ENTER

Modify Knob Left (counter-clockwise)

Modify Knob Right (clockwise)

Description

NOTE

In query form, this command reads the last key pressed. The buffer is

emptied by *RST and returns the value -1 when empty.

In set form, the command simulates pressing a key on the frontpanel.

Simulated key-press are also recorded as the last key pressed.

:SYST:KEY 19sets the instrument to LOCAL mode.

1. In remote mode only the softkeys under the display and the SHIFT

(LOCAL) key are active. Since the instrument normally switches to

remote mode when any command is received, including

:SYSTem:KEY, simulating one of the other disabled keys has no

effect.

2. If you want to simulate full frontpanel operation, you must prevent

the instrument from entering remote mode by using the REN line of

the GP-IB to maintain local mode (LOCAL 7 in BASIC).

If you do this, the :SYSTem:KEYcommand is the only command which

works. Any other commands will be buffered in the instrument blocking

any further :SYSTem:KEYcommands, until remote mode is enable.

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Programming Reference

SCPI Instrument Command List

Command

Long

:SYST:PRES

:SYSTem:PRESet

Same as *RST

Form

Command

Long

:SYST:SEC

:SYSTem:SECurity[:STATe]

Form

Set & Query

ON|OFF

OFF

Parameter

*RST value

Description

CAUTION

Do not switch on system security unless you are willing to erase the

instrument settings stored in the instrument. All instrument memories,

including the current setting, will be overwritten with the default settings

if you

• Switch off system security

• Switch the instrument off and on again

• If you accidentally switch on system security, and want to rescue the

settings stored in the instrument, store the settings on a memory card.

You can then recall them from the memory card later.

Use this command to switch on system security mode. Switch on system

security if you need to make sure that all instrument settings stored in

the instrument are erased automatically when the instrument is switched

off, or when security mode is switched off.

The instrument settings are erased by overwriting them with the default

settings.

System security mode is not available via the frontpanel. If you want to

erase all settings by hand:

SHIFT STORE 0 to RECALL the default settings from memory 0.

STORE 1, STORE 2 ,...,STORE 4 to store the defaults in memories 1 to 4.

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Programming Reference

SCPI Instrument Command List

Command

Long

:SYST:SET

:SYSTem:SET

Set & Query

Block data

Form

Parameter

*RST value

Description

Not applicable

In query form, the command reads a block of data containing the

instrument's complete set-up. The set-up information includes all

parameter and mode settings, but does not include the contents of the

instrument setting memories, the status group registers or the

:DISPlay[:WINDow][:STATe]The data is in a binary format, not

ASCII, and cannot be edited.

In set form, the block data must be a complete instrument set-up read

using the query form of the command.

Command

Long

:SYST:VERS?

:SYSTem:VERSion?

Query

Form

*RST value

Description

"1992.0"

This command reads the SCPI revision to which the instrument

complies.

Command

Long

:SYST:WARN?

:SYSTem:WARNing[:COUNt]?

Query

Form

*RST value

Description

Not applicable

Use this command to read the number of warnings which are currently

active. Note that the warning status of voltage, current, time and

frequency are also summarized by bits in the QUESTionable Status

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Programming Reference

SCPI Instrument Command List

Command

Long

:SYST:WARN:STR?

:SYSTem:WARNing:STRing?

Query

Form

*RST value

Description

Not applicable

Use this command to read all the currently active warning messages. The

warning messages are concatenated to form a single string with a ; as

separator between the messages.

Command

Long

:SYST:WARN:BUFF?

:SYSTem:WARNing:BUFFer?

Query

Form

*RST value

Description

Not applicable

Use this command to read the maximum possible number of characters

which could be returned by :SYST:WARN:STR?if all warnings were

active.

Command

Long

:TRIG:COUN

:TRIGger[:SEQuence[1] | :STARt]:COUNt

Form

Set & Query

Numeric

Parameter

*RST value

Specified limits 1 to 65504

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Programming Reference

SCPI Instrument Command List

Description

Use this command to set/read the number of trigger events (pulse

periods) to be generated for each arming event in pulse and burst mode

(in pattern mode the number of trigger events depends on the used

sequence). This corresponds to selecting the event mode on the MODE/

TRG screen:

Set a trigger count of 1 so that a single pulse period is

generated for each arming event.

PULSES

Set a trigger count of 2 to 65504 so that a burst of 2 to 65504

pulse periods is generated for each arming event. Switch off

pattern mode so that a pulse is generated in each pulse

period. (:DIG:PATT OFF)

BURST of

NOTE

For a started burst this command will reduce the number of pulses on

channel 1 and channel 2 (:TRIGger:COUNt:PULSes[1|2]) to the value

set by :TRIGger:COUNt. Changes of the number of pulses on the

channels will increase the value to of :TRIGger:COUNtto reflect the

changes on the channels.

Examples

To set STARTED BURST of 16 pulse periods and 6 Pulses at

Out1, the burst are started by a positive level at the EXT INPUT:

:ARM:SOUR EXT1

:ARM:MODE STAR

:ARM:SENS POS

:TRIG:COUN 16

:TRIG:COUN:PULS1 6

:TRIG:SOUR INT1

:DIG:PATT OFF

Set arming from EXT INPUT

Set started mode

Set arming on positive level

Burst length 16

Number of pulses at OUTPUT 1

Pulse period trigger from internal PLL.

Disable pattern operating mode

To set GATED PULSES Pulses at Out1, gated by a positive level at the

EXT INPUT:

:ARM:SOUR EXT1

:ARM:MODE GAT

:ARM:SENS POS

:TRIG:COUN 1

Set arming from EXT INPUT

Set arming on levels

Set arming on positive level 1 pulse period

Single pulse output mode

:TRIG:SOUR INT1

:DIG:PATT OFF

Pulse period trigger from internal PLL.

Disable pattern data

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Programming Reference

SCPI Instrument Command List

Influence of :TRIGger:COUNtand :TRIGger:COUNt:PULSes[1|2]in

started burst mode:

:ARM:SOUR IMM

TRIG:COUN 1

Set continuous mode

Set Pulse mode

:ARM:MODE STAR

:TRIG:COUN:PULS1 20

:TRIG:COUN 5

Prepare started mode

Set number of pulses on channel 1 to 20

Set Burst mode with a length of 5 clocks,

the number of pulses on both channels

will be reduced to 5 if necessary.

Request number of pulses on channel 1

^{:TRIG:COUN:PULS1?}⇒ ⁵

^:TRIG:COUN?⇒ ⁵

Request number of clock within the

started burst

:TRIG:COUN:PULS1 10

Set number of pulses on channel 1 to 10

Request number of clocks within the

started burst

^:TRIG:COUN?⇒ ¹⁰

:TRIG:COUN 20

Set number of clocks within the started

burst to 20

Request the number of clocks with in

the started burst. The return value is 10,

because none of the channels will gener-

ate more than 10 pulses.

^:TRIG:COUN?⇒ ¹⁰

:TRIG:COUN 8

Set the number of clocks within the

started burst to 8.

Request the number of pulses on chan-

nel 1. The return value is 8, because the

number of clocks has been decreased to

a value less than the currently used

number of pulses on channel 1.

^{:TRIG:COUN:PULS1?}⇒ ⁸

:TRIG:COUN 1

Set Pulse mode

Request the number of pulses on chan-

nel 1. The value stays unchanged, since

the instrument is no longer in started

burst mode.

^{:TRIG:COUN:PULS1?}⇒ ⁸

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Programming Reference

SCPI Instrument Command List

Command

Long

:TRIG:COUN:PULS[1|2]

:TRIGger[:SEQuence[1] | :STARt]:COUNt:PULSes[1|2]

Form

Set & Query

Numeric

Parameter

*RST value

Specified limits 2 to 65504

Description

Use this command to set/read the number of pulses within a burst at

OUTPUT 1 or OUTPUT 2.

Examples

To set STARTED BURST of 16 pulse periods and 6 Pulses at

Out1, the burst is started by a positive level at the EXT INPUT:

:ARM:SOUR EXT1

:ARM:MODE STAR

:ARM:SENS POS

:TRIG:COUN 16

:TRIG:COUN:PULS1 6

:TRIG:SOUR INT1

:DIG:PATT OFF

Set arming from EXT INPUT

Set started mode

Set arming on positive level

Burst length 16

Set 6 pulses at OUTPUT 1

Pulse period trigger from internal PLL.

Disable pattern operating mode

Command

Long

:TRIG:LEV:TERM

:TRIGger[:SEQuence[1] | :STARt]:LEVel:TERMination

Form

Set & Query

Numeric

Parameter

Parameter Suffix Vwith engineering prefixes.

*RST value

0.0 V

Specified Limits –2.1V to +3.3V

Description

Use this command to program the termination voltage compensation of

the CLK IN connector.

:TRIG:LEV:TERM 2.5V

Set CLK IN termination voltage to 2.5 V

Example

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Programming Reference

SCPI Instrument Command List

Command

Long

:TRIG:SOUR

:TRIGger[:SEQuence[1] | :STARt]:SOURce

Form

Set & Query

Parameter

*RST value

Description

IMMediate | INTernal[1] | EXTernal2

INT

Use this command to select the pulse period source of the

Agilent 81130A by selecting the source of the pulse period trigger signal:

Pulse period sources set by :TRIG:SOUR

Pulse period source

:TRIG:SOURce

IMMediate | INTernal[1]

EXTernal2

internal PLL

CLK IN

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Programming Reference

SCPI Instrument Command List

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3Specifications

In this chapter you will find the specifications of the Agilent 81130A

Pulse Generator and its output modules Agilent 81131A and Agilent

81132A.

At the end of this chapter, “Pulse Parameter Definitions” on page 111

provides detailed information on the definition of the pulse parameters

used by the instrument.

NOTE

Warranted Performance

Specifications describe the instrument’s warranted performance. Non-

warranted values are described as typical. All specifications apply after a

30 minute warm-up phase with 50 Ohm source, a 50 Ohm load resistance

and separate channels. They are valid from 0 °C to 55 °C ambient

temperature.

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Specifications

Declaration of Conformity

Manufacturer

Agilent Technologies

Boeblingen Verification Solutions

Herrenberger Str.130

D-71034 Boeblingen/Germany

We declare that the system:

Agilent 81100

Family of Pulse-/Data Generators

Agilent 81110 A

Agilent 81104 A

Agilent 81101 A

Agilent 81112 A

Agilent 81130 A *

Agilent 81131 A *

Agilent 81132 A *

330/165 MHz Pulse/Pattern Generator

80 MHz Pulse Pattern Generator

50 MHz Pulse Pattern Generator

330 MHz , 3.5V Output Module

400/660 MHz Puls-/Pattern Generator

400 MHz , 3.5V Output Module

660 MHz , 2.5V Output Module

Agilent E 8305 A *

Agilent E 8306 A *

VXI Plugin 250 MHz Pulse Generator

VXI Plugin 100 MHz Clock Generator

conforms to the following standards:

Safety

EMC

IEC 1010-1:1990 +A1:1992 +A2:1995 EN61010-1:1993

EN 55011:1991 / CISPR 11 Group 1, Class B

EN 55011:1991 / CISPR 11 Group 1, Class A

EN 61000-4-2:1995

EN 61000-4-3:1995

ENV 50204: 1995

EN 61000-4-4:1995

EN 61000-4-5:1995

EN 61000-4-6:1995

EN 61000-4-8:1993

IEC1000-4-11:1994

ESD: 4kVcd; 8 kVad;4kV c.p.

Radiated Immunity: 3V/m 80%AM

Radiated Immunity: 3V/m; 50%Dty

Fast Transients/Bursts: 0.5kV, 1kV

Surges: 1kVdiff; 2kV com.mode

Conducted Immunity

Power freq. magn. field 3A/m; 50Hz

Voltage Dips and Interruptions

Supplementary

Information

The product herewith complies with the requirements of the

•

Low Voltage Directive (73/23/EEC) and the

EMC Directive (89/336/EEC).

During the measurements against EN55011, the I/O ports were terminated with their

nominal impedance, the GP-IB connection was terminated with the cable Agilent 10833B.

When the product is connected to other devices, the user must ensure that the connecting

cables and the other devices are adequately shielded to prevent radiation.

Boeblingen, June 09th 1998

Wolfgang Fenske

Update, Oct. 13 1998

Regulation Consultant

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Specifications

Agilent 81130A Specifications

General

Environmental Conditions

0 C to +55 C

Operating temperature:

–40 C to +70 C

Storage temperature:

Humidity:

Altitude:

95% r.h. up to 40 C ambient temperature

up to 2000 m

Installation:

Pollution:

EMC:

Category II

Degree 2

conforms to EN50082-1, EN55011, Class A

Battery:

Lithium, type CR2477-N

(Agilent part number 1420-0557)

Safety

IEC1010, CSA1010

Power requirements

100–240 Vac, ±10%, 50–60 Hz;

100–120 Vac, ±10%, 400 Hz

Power consumption: 300 VA max.

Maximum Dimensions (H x W x D)

89 mm x 426 mm x 521 mm

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Specifications

Agilent 81130A Specifications

Weight

Net

8.5 kg Single Channel

9.2 kg Dual Channel

Shipping

13.8 kg Dual Channel

Recalibration period

1 year recommended

Warranty

3 years standard

Acoustic Noise Emission

For ambient temperature up to 30°C,

under normal operation and at the typical operator position:

LpA = 52 dB (5.9 bel) typical {47 dB (5.3 bel) at 23°C) typical}

Measured in accordance with ISO 7779/EN 27779.

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Specifications

Agilent 81130A Specifications

Timing Specifications

The timing characteristics are measured at 50% amplitude at fastest

transitions in continuous mode and 50 Ω load impedance.

NOTE

The Agilent 81130A is designed and recommended for an operation in the

frequency range of 170 kHz to 400/660 MHz. However it can be operated

in the extended range down to 1 kHz. Changes in specifications below

170 kHz are set in brackets [].

Period & Frequency

Period can also be entered as frequency.

Agilent 81130A with

Agilent 81131A

Agilent 81130A with

Agilent 81132A

Period & Frequency

Period range:

2.5 ns to 1 ms

1.5 ns to 1 ms

Frequency range:

1 kHz to 400.0 MHz

1 kHz to 660.0 MHz

Period/frequency

resolution:

4 digits, 2 ps best case

± 100 ppm [0.01%]

0.001% + 15 ps

Period accuracy :

RMS-jitter:

(internal reference,

internal clock)

In burst mode the first period may be decreased by 150 ps.

Repeatability is typically four times better than accuracy.

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Specifications

Agilent 81130A Specifications

Width

The width can be entered as absolute width, duty cycle, or trailing edge

delay.

Agilent 81130A with

Agilent 81131A

Agilent 81130A with

Agilent 81132A

Width

Width range:

Resolution:

Accuracy:

Jitter:

1.25 ns to (period – 1.25 ns)

750 ps to (period – 750 ps)

4 digits, 2 ps best case [0.05% of period]

100 ppm 200 ps [ 0.06% of period]

0.001% 15 ps

Delay

Measured between trigger output and main output. Can be entered as

absolute delay, phase ° or % of period.

Agilent 81130A with

Agilent 81131A

Agilent 81130A with

Agilent 81132A

Delay

Variable delay range:

0 to 3.00 µs: independent of period

> 3.00 µs: 0 ns to 1 period

Resolution:

Accuracy:

4 digits, 2 ps best case [0.05% of period]

(0.01% + 100 ps) relative to the zero-delay

[±0.035% of period]

Jitter:

0.001% + 15 ps

32 ns typ.

Fixed Delay:

100

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Specifications

Agilent 81130A Specifications

Deskew

Compensation for different cable delays.

Agilent 81130A with

Agilent 81132A

Deskew

Agilent 81131A

Range:

25 ns

Resolution:

4 digits, 2 ps best case

For frequencies >170 kHz only.

Transition Times

Measured between 10% and 90% of amplitude, except for ECL levels (20%

and 80% of amplitude).

Agilent 81130A with

Agilent 81131A

Agilent 81130A with

Agilent 81132A

Transition Times

800 ps or 1600 ps

(selectable)

fixed

Range:

≤

600 ps for Vpp 1 V

900 ps for Vpp > 1 V

500 ps typ.

Minimum transition:

At ECL levels:

<450 ps

< 350 ps (200 ps typ.)

Digital Channel Add

In this mode, channel 1 and channel 2 are added and fed to channel 1

output. Channel 2 is still available.

101

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Specifications

Agilent 81130A Specifications

Main Output Level Specifications

Level parameters can be entered as high/low level in terms of voltage or

current or offset/amplitude.

Agilent 81130A with

Agilent 81131A

Agilent 81130A with

Agilent 81132A

Level

Specifications

Ω

50 ± 1% typ.

Ω

50 ± 5% typ.

Output impedance:

Max. external voltage: –2.2 V to +5.5 V

–2.0 V to +4.0 V

Amplitude:

0.10 Vpp to 3.80 Vpp

–2.00 V to +3.80 V

0.10 Vpp to 2.50 Vpp

–2.00 V to +3.00 V

Level window:

Accuracy:

(2% + 50 mV)

(5% + 50 mV)

Limits:

high and low level can be limited to protect the DUT

3 digits (10 mV best case)

Resolution:

Short circuit current:

Baseline noise:

Connectors:

–80 mA to +152 mA

4 mV RMS typ.

–80 mA to +120 mA

8 mV RMS typ.

SMA(f) 3.5 mm

Overshoot/preshoot/

ringing:

(5% +50 mV) of amplitude typ.

Normal/inverted:

ON/OFF:

differential outputs

relays connect/disconnect output (HiZ)

102

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Specifications

Agilent 81130A Specifications

External Input, External Clock/PLL

Reference Input

External Input

The external input EXT INPUT is used as trigger/gate input in started and

gated mode. It is sampled once per period.

External Clock/PLL Reference Input

The CLK-IN/REF input can either be used for external clock input or

Phase Locked Loop (PLL) reference.

• External Clock

–

The output period is determined by the signal at clock input.

Frequency accuracy can be increased by using a precise external

clock.

• PLL Reference

–

PLL locks either to an external frequency reference at the PLL

Reference Input or to an instrument’s internal reference.

–

PLL is a high accuracy period (frequency) source.

When locked to the internal reference, period accuracy,

resolution, and jitter are improved.

When locked to an external frequency reference, the external

frequency affects these accuracies.

103

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Specifications

Agilent 81130A Specifications

Specifications of EXT INPUT/CLK-IN REF Input

External clock/PLL

Input Parameters

External Input (EXT IN)

reference (CLK-IN/REF)

Connectors:

SMA(f) 3.5 mm

Termination voltage:

–2.10 V to +3.30 V

50 mV

Termination voltage

resolution:

Input Transitions:

< 20 ns

Maximum input

voltage:

–3 V to +6 V

Threshold:

–1.4 V to +3.7 V

ac coupled

Threshold resolution: 50 mV

not applicable

Ω

50 typ. / dc

Ω

50 typ. / ac

Input impedance/

coupling:

Input frequency:

0 to 330 MHz

External Clock:

170 kHz to 660 MHz

PLL Reference:

1, 2, 5, 10 MHz

50% 10% duty cycle

Duty cycle:

DC-coupled

Typical delay to

trigger out:

21 ns

22 ns + 0 ... 1 period

Typical delay to

output:

53 ns

54 ns + 0 ... 1 period

Sensitivity:

< 400 mVpp

The uncertainty of 1 period can be eliminated if an external clock is used and the

following setup and hold times are observed:

setup time: 0.3 ns to 4.3 ns, hold time: –2.8 ns to 4.0 ns.

104

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Specifications

Agilent 81130A Specifications

Trigger Modes

Continuous

Generate continuous pulses, bursts, or patterns.

Externally Started

Each active input transition (rising or falling) generates pulses, a burst,

or a pattern.

The trigger source can be selected from:

• External Input

• MAN key

Externally Gated

The active input level (high or low) enables pulses, bursts, or patterns.

The output is stopped immediately on an external gate signal, therefore

the last cycle may be incomplete.

The gate source can be selected from:

• External Input

• MAN key

105

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Specifications

Agilent 81130A Specifications

Specification of Trigger Output

This output provides one pulse per period with 50% duty cycle typically.

In pattern mode, the trigger pulse can be set to mark the start of any

segment.

Trigger Output Specification

Agilent 81130A

Ω

Level (into 50 ):

selectable:

TTL into GND

PECL into +3 V

ECL into –2 V

ECL into GND

Ω

50 typ.

Output impedance:

Trigger pulse width:

50% of period typ.

–2 V to +3 V

600 ps typ.

Maximum external voltage:

Transition times:

Delay from trigger to output:

32 ns typ.

Output Modes

The output mode determines whether the output signal consists of

• pulses

• bursts of pulses

• patterns of pulses

The output signal is controlled by the Trigger mode.

106

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Specifications

Agilent 81130A Specifications

Burst Mode

Burst

Agilent 81130A

Burst count:

2 to 65504

2 to 65504 clocks

Burst period :

Minimum number of clocks is twice the segment length resolution (see table “Patterns

and Sequences”).

Patterns and Sequences

Patterns/Sequences Specifications

Agilent 81130A

Number of segments:

Number of infinite loops:

Number of counted loops:

Loop count:

1 to 2

Memory depth per channel:

Segment length:

65504 (– PRBS repetition length)

1 to 65504

(Frequency dependent resolution, see ta-

ble below)

Data types:

Data (editable)

High

Low

PRBS (2 -1 with n = 7, 8, ... 15)

Data formats:

RZ, R1, NRZ

107

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Specifications

Agilent 81130A Specifications

The following rules apply for pattern sequences:

• The resolution of the segment length value depends on the frequency:

Resolution

Frequency in MHz Period in ns

333.4 ... 666.7

166.7 ... 333.3

83.4 ... 166.6

41.7 ... 83.3

1.500 ... 2.999

3.000 ... 5.999

6.000 ... 11.99

12.00 ... 23.99

min. freq. ... 41.6

24.00 ... max. period

• If the counted loop is used, the minimum length of the first segment is

twice the resolution.

• An infinite loop over a single segment requires a minimum segment

length of twice the resolution.

• Within a segment, PRBS is allowed to be combined with data type

PRBS, High or Low only.

• PRBS must be combined with always the same data type in all

segments.

Human Interface

Overprogramming

Parameter values can be entered exceeding the specified range.

Warnings and Errors

Warning messages indicate potentially conflicting parameters due to

accuracy tolerances.

Error messages indicate conflicting parameters.

108

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Specifications

Agilent 81130A Specifications

Help Key

Displays a context-sensitive message about the selected parameter.

Concept help for getting started is also available. If warnings or errors

occur, the HELP key displays the warning/error list accordingly.

Memory

Non-Volatile Memory

Actual setting is saved on power down. 4 user settings and 1 default

setting are also stored in instrument.

Memory Card

99 settings can be stored per 1 MB (MS-DOS, PCMCIA) memory card.

Also used for convenient firmware updates.

Remote Control

Operates according to IEEE standard 488.2, 1987 and SCPI 1992.0.

Function Code

SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT1,C0.

109

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Specifications

Agilent 81130A Specifications

Programming Times

(all checks and display off)

Command

Typical execution time

Width, delay, transition times:

40 ms to 70 ms

100 ms to 260 ms

Period within one range :

Period between different ranges ...

... in pulse/burst mode: 140 ms to 300 ms

... in pattern mode: 100 ms to 5.05 s

Levels:

43 ms

Trigger modes:

Input parameters:

Save setting:

Recall setting ...

< 75 ms

28 ms

200 ms

... in pulse/burst mode: 515 ms to 800 ms

... in pattern mode with data and PRBS

1.15 s to 5.5 s

Complete pattern memory transfer:

1.25 ms

Pattern and Sequencing

190 ms to 5.1 s

Range depends on segment length resolution.

Depends on PRBS polynom setting.

110

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Specifications

Pulse Parameter Definitions

Here you find the pulse parameter definitions of terms used in the

instrument specifications. In the following figure a graphical overview of

the pulse parameters is provided:

Pulse Period

External

Trigger

Signal

Trigger

Delay

Trigger

Output

Pulse

Width

Transition

Times

Pulse Delay

Output

Delay A

Channel A

Output

Interchannel

Delay Skew

Channel B

Output

Delay B

111

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Specifications

Pulse Parameter Definitions

Time Reference Point

The time reference point is at the median of the amplitude (50%

amplitude point on pulse edge):

100%

Median

50%

Pulse Period

The time interval between the leading edge medians of consecutive

output pulses:

50%

Pulse Period

Trigger Delay

Interval between trigger point of the external trigger input signal and the

trigger output pulse’s leading edge median.

Pulse Width

Interval between leading and trailing edge medians:

50%

Specified

Width

The specified and displayed value is that obtained with fastest edges,

essentially equal to the interval from the start of the leading edge to the

start of the trailing edge. By designing so that the pulse edges turn about

their start points, the interval from leading edge start stays unchanged (in

112

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Specifications

Pulse Parameter Definitions

practice, start points may shift with changes in transition time) when

transition times are varied. This is more convenient for programming and

the width display is easy to interpret.

Pulse Delay

Interval between leading edge medians of trigger output pulse and output

pulse:

Trigger

Output

Signal

Fixed Delay

Variable Delay

The specified and displayed value is that obtained with the fastest

leading edge. Pulse delay has two components, a fixed delay from trigger

output to output signal and a variable delay with respect to the trigger

output.

Interchannel Delay (Skew)

Interval between corresponding leading edge medians of the output

signals.

113

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Specifications

Pulse Parameter Definitions

Transition Time

Interval between the 10% and 90% amplitude points on the leading/

trailing edge:

100%

90% Amplitude

Transition

Time

10% Amplitude

Linearity

Peak deviation of an edge from a straight line through the 10% and 90%

amplitude points, expressed as percentage of pulse amplitude:

100% Amplitude

90% Amplitude

Deviation

10% Amplitude

0% Amplitude

114

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Specifications

Pulse Parameter Definitions

Jitter

Short-term instability of one edge relative to a reference edge. Usually

specified as rms value, which is one standard deviation or “sigma”. If

distribution is assumed Gaussian, six sigma represents 99.74% of the

peak-peak jitter.

The reference edge for period jitter is the previous leading edge. That for

delay jitter is the leading edge of the trigger output. Width jitter is the

stability of the trailing edge with regard to the leading edge.

Stability

Long-term average instability over a specific time, for example, hour,

year. Jitter is excluded.

Pulse Levels

Pulse output is specified as pulse top and pulse base (usually referred to

as high level and low level), or as peak to peak amplitude and median

offset. A “window” specification shows the limits within which the pulse

can be positioned.

High Level

Median

Max

High

Amplitude

Level

Window

Offset

Low Level

Min

Low

Level

Zero Volts

115

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Specifications

Pulse Parameter Definitions

Preshoot, Overshoot, Ringing

Preshoot and overshoot are peak distortions preceding/following an

edge. Ringing is the positive-peak and negative-peak distortion,

excluding overshoot, on pulse top or base. For example, a combined

preshoot, overshoot, and ringing specification of 5% implies:

• Overshoot/undershoot < 5%

• Largest pulse-top oscillation

<+ 5%, of pulse amplitude.

Overshoot

e.g. 5%

Ringing (POSITIVE)

e.g. +3%

100

Amplitude

(NEGATIVE)

Ringing

e.g. –2%

0% Amplitude

Preshoot

e.g. 2%

Settling Time

Time taken for pulse levels to settle within level specifications, measured

from 90% point on leading edge.

Amplitude

Accuracy

Band

90%

Amplitude

Settling Time

116

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Specifications

Pulse Parameter Definitions

Repeatability

When an instrument operates under the same environmental conditions

and with the same settings, the value of a parameter will lie within a band

inside the accuracy window. Repeatability defines the width of this band.

Accuracy Window

Repeatability Band

117

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Specifications

Pulse Parameter Definitions

118

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Index

Acoustic Noise Emission 98

transition time 114

trigger delay 112

^{Delay 69}, ⁷⁰

Added at Output 1 45

Amplitude

definition 115

specification 100

^{Delay% 68}, ⁶⁹, ⁷⁰

Deskew

Amplitude current 60

Amplitude voltage 77

Automatic restart the instrument 45

specification 101

^{Digital Channel Add}⁴⁵, ¹⁰¹

Dimensions 97

DIR 56

BURST

DISPLAY

ON/OFF 55

^{length 89}, ⁹²

^{mode 89}, ⁹²

number of pulses 92

^{period 89}, ⁹²

Duty Cycle 67

Enable Register 21

Burst Mode

specification 107

Environmental Conditions 97

Error Queue 84

Certification

met specifications 5

Errors 108

Event Register 20

EXT INPUT

Channel addition 45

Termination Voltage 43

Threshold 43

Clear Error Queue 82

Clear Status 82

External Clock 103

External Input 103

CLK-IN Termination 92

Common Commands 18

Condition Register 20

^{CONTINUOUS mode}⁴⁴, ⁴⁶, ⁴⁷

^{Counted Loop}⁴⁵, ⁴⁷, ⁴⁸, ¹⁰⁸

Current Limits 64

Frequency

specification 99

Functional Coupling 42

DATA 53

GATED

level 44

^mode⁴³, ⁴⁴

Declaration

of Conformity 96

Default Units 70

Definition

Gated by 44

General

interchannel delay 113

jitter 115

Linearity 114

Specifications 97

GP-IB

information 14

pulse delay 113

pulse levels 115

pulse parameters 111

pulse performance 116

pulse period 112

pulse width 112

repeatability 117

settling time 116

stability 115

HELP Key 109

HIGH 53

High-level

current 62

current limit 63

definition 115

voltage 78

time reference point 112

voltage limit 80

119

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Index

Human Interface 108

Non-Volatile Memory 109

NRZ/RZ 54

^{Infinite Loop}⁴⁶, ⁴⁷, ¹⁰⁸

Instrument Setting 88

Interchannel Delay

definition 113

Offset

current 61

definition 115

voltage 77

Jitter

definition 115

Operation Status 23

Output modes

specification 106

OUTPUT ON/OFF 59

Overprogramming 108

Overshoot

Key-code Reference 86

Last Key Pressed 84

definition 116

Leading Edge 72

definition 114

Level

PATTERN

Data 49

specification 102

Linearity

definition 114

Load

file into memory 58

Loop Length 48

Loop Start 47

LOW 53

LENGTH 52

^{LOOP 45}, ⁴⁶, ⁴⁷, ⁴⁸

mode 48

PRBS 48

Update 54

Pattern

Clock/n 53

Patterns

specification 107

Period

Low-level

current 63

specification 99

Phase 67

current limit 64

definition 115

voltage 79

PLL Reference 76

frequency 76

Input 103

voltage limit 80

Main Output Level Specification 102

Power requirements 97

^{PRBS 53}, ¹⁰⁸

Preshoot

Measure CLK-IN

frequency 66

period 71

definition 116

Programming

BURST mode 40

CONTINUOUS mode 39

GATED mode 39

PATTERN mode 40

PULSES mode 39

STARTED mode 39

Programming Times

specification 110

Pulse Delay

Memory Card

catalog/DIR 56

change directory 56

copy file 57

delete file 57

format 58

initialize 58

load from Form 58

store to 59

definition 113

120

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Index

Pulse Frequency 65

Pulse Levels

Specifications 95

burst mode 107

delay 100

definition 115

Pulse Parameter

definitions 111

Pulse Performance

definition 116

Pulse Period 70

definition 112

source 93

deskew 101

frequency 99

general 97

level 102

memory card 109

output modes 106

patterns 107

period 99

PLL 103

Pulse Width 75

definition 112

programming times 110

pulse width 100

remote control 109

sequences 107

timing 99

Questionable Status 24

Group 82

timing (PLL) 103

transition times 101

trigger modes 105

width 100

Range Coupling 42

Reading

Error Queue 84

Keyboard 84

Recalibration period 98

Repeatability

definition 117

Reset 87

Stability

definition 115

Standard Event Status 22

Start instrument 45

STARTED

level 44

Ringing

definition 116

RZ/NRZ 54

^mode⁴³, ⁴⁴

Started by 44

Status Byte 22

Status Group

definition 19

questionable 82

Status Model 19

Preset 82

Safety 97

symbols 8

SCPI

command dictionary 42

version 88

Stop instrument 45

Store

from memory to file 58

System

Preset 87

Segment

data 49

^{length 49}, ⁵², ⁵³

type 53

Security 87

Separate Channels 45

Sequences

specification 107

Setting

load into memory 58

Settling Time

definition 116

Simulating Key-presses 84

Skew

Time Reference Point

definition 112

Timing

specifications 99

Trailing Edge

definition 114

delay 72

definition 113

Transition Filters 20

121

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Index

Transition Times 72

definition 114

specification 101

Transition Units 72

Trigger Delay

definition 112

Trigger Modes

specification 105

TRIGGER OUT

level 74

mode 74

position 74

Value Coupling 42

Voltage Limits 81

^{Warnings 88}, ¹⁰⁸

Warranted Performance 95

Warranty 98

Weight 98

Width

specification 100

122

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Front Panel Controls

DATA ENTRY

CURSOR/DIGIT

MODIFY

nano

MAN

RECALL

STORE

PERIOD

DELAY

WIDTH

PATTERN

micro

Mega

AUTOSET

HELP

LEAD

TRAIL

HIGH

LOW

milli

kilo

ON | OFF1

ON | OFF2

+/-

ON | OFF2

ENTER

SHIFT

LOCAL

CURSOR

Keys

DATA ENTRY /

QUICK ACCESS

Keys

KNOB

Special

FUNCTION

Keys

ENTER &

UNIT Keys

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Edition E0300

Printed in Germany

81130-91021

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