Agilent 81133A Programming Guide

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Agilent 81133A/81134A Pulse Generator

Programming Guide

Important Notice

CAUTION

WARNING

Manual Part Number

5988-7402EN

Revision

March 2007

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The material contained in this document is provided "as is," and is subject to being changed, without notice, in future editions. Further, to the maximum extent permitted by applicable law, Agilent disclaims all warranties, either express or implied, with regard to this manual and any information contained herein, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing, use, or performance of this document or of any information contained herein. Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms, the warranty terms in the separate agreement shall control.

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Safety Notices

A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met.

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2 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

About This Programming Guide

This guide provides information about programming the Agilent 81133A/81134A Pulse/Pattern Generator through the available remote interfaces.

• “Introduction” on page 9 provides information about the different remote programming interfaces.

• “Connecting to the Pulse/Pattern Generator for Remote Programming” on page 11 provides information about how to connect to the instrument and gives examples.

• “SCPI Commands Reference” on page 17 provides detailed information about the available SCPI commands.

• “Troubleshooting” on page 97 lists the error messages and shows how to solve the errors.

• “Differences between the 8133A and the 81133A/81134A” on page 101 provides information on how to adapt a program written for the 8133A to the 81133A/81134A instrument.

For examples for setting up generic and advanced signals, please refer to the User Guide.

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 3

About This Programming Guide

4 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

Introduction 9

Connecting to the Pulse/Pattern Generator for Remote Programming 11

SCPI Commands Reference 17

About This Programming Guide 3

Connecting to the Instrument via GPIB 11

Example for Connecting via GPIB 12

Connecting to the Instrument via LAN 13

Configuring the Agilent IO Libraries 13 Example for Connecting via LAN 14

Connecting to the Instrument via USB 15

Common Commands 19

Standard Settings 21

DIAGnostic Commands 23

:CAL:TIM 24 :DIAG:CHANnel[1|2]:PPERformance 24

DIGital Commands 25

CROSsover:[VALue] 32 :DIGital[1|2][:STIMulus]:SIGNal:

CROSsover:[STATe] 34

DISPlay Commands 35

:DISPlay[:WINDow][:STATe] 35

MEASure Commands 36

:MEASure:FREQuency? 37

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 5

:MEASure:PERiod? 38

OUTPut Commands 39

SOURce Commands 45

[:IMMediate][:AMPLitude] 60 [:SOURce]:VOLTage[0|1|2][:LEVel]

[:IMMediate]:OFFSet 61 [:SOURce]:VOLTage[0|1|2][:LEVel]

[:IMMediate]:HIGH 62 [:SOURce]:VOLTage[0|1|2][:LEVel]

[:IMMediate]:LOW 63 [:SOURce]:VOLTage[0|1|2][:LEVel]

[:IMMediate]:TERM 64 [:SOURce]:VOLTage[1|2]:LIMit

[:AMPLitude]? 64 [:SOURce]:VOLTage[1|2]:LIMit:OFFSet? 65 [:SOURce]:VOLTage[1|2]:LIMit:HIGH? 65 [:SOURce]:VOLTage[1|2]:LIMit:LOW? 65 [:SOURce]:VOLTage[1|2]:LIMit:STATe 66

Status Handling Commands 67

6 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

:STATus:OPERation 70 :STATus:PRESet 70 :STATus:QUEStionable 71 :STATus:QUEStionable:VOLTage 73 :STATus:QUEStionable:FREQuency 74 :STATus:QUEStionable:MONotony 76

SYSTem Commands 79

:SYSTem:ERRor? 81 :SYSTem:PRESet 81 :SYSTem:SET 82 :SYSTem:VERSion? 82 :SYSTem:COMMunicate:LAN[:SELF]:DHCP 83 :SYSTEM:COMMunicate:LAN[:SELF]:NAME 83 :SYSTem:COMMunicate:LAN[:SELF]

:ADDRess 84 :SYSTem:COMMunicate:LAN[:SELF]

:SMASk 84 :SYSTem:COMMunicate:LAN[:SELF]

:DGATeway 85 :SYSTem:COMMunicate:GPIB[:SELF]:ADDR 85

TRIGger Commands 86

:TRIGger:SOURce 87 :TRIGger:TERM 88 :TRIGger:TERM:STATE[?] 89

ARM Commands 90

:ARM[:SEQuence][:LAYer]:LEVel 91 :ARM[:SEQuence][:LAYer]:SLOPe 92 :ARM[:SEQuence][:LAYer]:SOURce 93 :ARM[:SEQuence][:LAYer]:TERM 94 :ARM[:SEQuence][:LAYer][:STARt] 94 :ARM[:SEQuence][:LAYer]:STOP 95

Troubleshooting 97

Differences between the 8133A and the 81133A/81134A 101

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 7

8 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

Introduction

For controlling the Agilent 81133A/81134A remotely, the instrument provides three different interfaces:

•GPIB

•LAN

•USB

NOTE Your instrument’s firmware might not be set up for USB. USB

functionality is not available with the first release but will be included in a later release of the firmware. Check the Agilent Web page for update information.

Using the GPIB connector, the instrument can be controlled from a PC or a UNIX Workstation.

Using the LAN connector, the instrument can be connected to a local area network and can be programmed from a PC.

USB is the replacement for GPIB when used on the bench. The language is the same as with GPIB.

Firmware Server and SCPI Commands All interfaces use the same SCPI- like language to communicate

with the instrument’s firmware server. The firmware server implements a client server architecture, allowing to connect multiple clients simultaneously.

The GUI also uses this language to communicate with the firmware server. Therefore, everything that can be done via the user interface can also be done via the programming interfaces.

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 9

Introduction

10 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

Connecting to the Pulse/Pattern Generator for Remote Programming

The following sections show how to establish the connection between your control PC and the instrument through the available remote interfaces.

Connecting to the Instrument via GPIB

You can use GPIB connections only for controlling the instrument by means of SCPI commands.

To connect to the instrument via GPIB you have to:

• Use GPIB cables to connect the instrument to the test environment.

• Specify the instrument’s GPIB address.

The address is displayed on the user interface. The default address is 13. It can be changed on the user interface in the Config Page or with the command

“:SYSTem:COMMunicate:GPIB[:SELF]:ADDR” on page 85

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 11

Connecting to the Pulse/Pattern Generator for Remote Programming Connecting to the Instrument via GPIB

Example for Connecting via GPIB

The following code example shows how to use the VISA library to connect to the instrument via GPIB.

This example queries a GPIB device for an identification string and prints the results.

Implementation

#include <visa.h> #include <stdio.h>

void main () {

ViSession defaultRM, vi; char buf [256] = {0};

/* Open session to GPIB device at address 22 */

viOpenDefaultRM (&defaultRM); viOpen (defaultRM, "GPIB0::22::INSTR", VI_NULL,VI_NULL, &vi);

/* Initialize device */

viPrintf (vi, "*RST\n");

/* Send an *IDN? string to the device */

viPrintf (vi, "*IDN?\n");

/* Read results */

viScanf (vi, "%t", &buf);

/* Print results */

printf ("Instrument identification string: %s\n", buf);

/* Close session */

viClose (vi); viClose (defaultRM);

}

12 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

Connecting to the Instrument via LAN Connecting to the Pulse/Pattern Generator for Remote Programming

Connecting to the Instrument via LAN

For connecting over the LAN, you would do have the following:

• Connect the instrument to the LAN physically.

• Configure the Agilent IO Libraries on the remote machine.

• On the user interface, either specify the LAN address or—if a DHCP server is available—enable the DHCP. The DHCP will automatically set up the LAN connection.

• After the connection has been established, the following commands can be used to modify the settings:

– Enable/disable DHCP with

:SYST:COMMunicate:LAN[:SELF]:DHCP

– Set the instrument’s LAN name with

:SYST:COMMunicate:LAN[:SELF]:NAME

– Set the instrument's IP address with

:SYST:COMMunicate:LAN[:SELF]:ADDRess

– Set the instrument’s subnet mask with

:SYST:COMMunicate:LAN[:SELF]:SMASk

– Set the instrument’s gateway with

:SYST:COMMunicate:LAN[:SELF]:DGATeway

Configuring the Agilent IO Libraries

Suite 14 of the Agilent IO Libraries does not directly support interfaces with a SICL name of “lan0”. When you add a LAN interface, the default SICL name is “inst0”. To ensure compatability with current code, it is recommended that you change the SICL name to “lan0”.

To set up and configure the interface:

1 Run Agilent Connection Expert and configure your TCPIP

instrument according to the instructions provided with the Agilent Connection Expert.

2 Close Agilent Connection Expert.

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 13

Connecting to the Pulse/Pattern Generator for Remote Programming Connecting to the Instrument via LAN

3 Run IO Config.

The IO Config utility (iocfg32.exe) can be found at (default location): C:\Program Files\Agilent\IO Libraries Suite\bin

Note that you can also open the IO Config from the Agilent IO Libraries Control icon in the task bar.

4 Edit “inst0” to “lan0”.

Select “TCPIP Lan”, then click Edit. This will bring up the list of TCPIP devices already configured. Select the device you need to change, then click Edit Device. You can now change the device name to “lan0”.

NOTE You will see a red circle with “!” in the Agilent Connection Expert.

Example for Connecting via LAN

Implementation

The following code snippet shows how to use the VISA library to connect to the instrument via LAN.

This example queries a device for an identification string and prints the results.

#include <visa.h> #include <stdio.h>

void main () {

ViSession defaultRM, vi; char buf [256] = {0};

/* Open session to the device */ viOpenDefaultRM (&defaultRM); viOpen (defaultRM, "TCPIP0::123.123.123.123::lan0::INSTR" VI_NULL,VI_NULL, &vi);

/* Initialize device */ viPrintf (vi, "*RST\n");

/* Send an *IDN? string to the device */ viPrintf (vi, "*IDN?\n");

/* Read results */ viScanf (vi, "%t", &buf);

/* Print results */ printf ("Instrument identification string: %s\n", buf);

/* Close session */ viClose (vi);

14 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

Connecting to the Instrument via USB Connecting to the Pulse/Pattern Generator for Remote Programming

viClose (defaultRM);

}

Connecting to the Instrument via USB

NOTE The control PC must have USB capability for USB connections

(Windows NT is not supported).

For connecting over the USB, please refer to the Help delivered with the USB driver.

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 15

Connecting to the Pulse/Pattern Generator for Remote Programming Connecting to the Instrument via USB

16 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

SCPI Commands Reference

The following sections describe the SCPI Commands available to program the 81133A/81134A remotely. The commands are divided into the following functional blocks:

• “Common Commands” on page 19

• “DIAGnostic Commands” on page 23

• “DIGital Commands” on page 25

• “DISPlay Commands” on page 35

• “MEASure Commands” on page 36

• “OUTPut Commands” on page 39

• “SOURce Commands” on page 45

• “Status Handling Commands” on page 67

• “SYSTem Commands” on page 79

• “TRIGger Commands” on page 86

• “ARM Commands” on page 90

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 17

SCPI Commands Reference

Command Structure Each command description has at least some of the following

items:

• Full command syntax

•Form

–Set

The command can be used to program the instrument.

–Query

The command can be used to interrogate the instrument. A question mark (?) is added to the command, the parameters may also change.

• Brief description

• Parameters

• 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 parameter whose valid ranges may be changed by the command.

• *RST value

The value/state following a *RST command

•Specified Limits

•Short example

18 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

Common Commands SCPI Commands Reference

Common Commands

The following table shows the IEEE 488.2 Common Commands available with the Agilent 81133A/81134A Pulse Generator.

Command Parameter Description

*CLS

*ESE

*ESR?

*IDN?

*LRN?

*OPC

*OPT?

*RCL

*RST

*SAV

*SRE

*STB?

*TST?

*WAI

- Clears the status register

<0–255> Sets the event status register mask

- Reads the event status register

- Reads the instrument's identification string

- Reads a complete instrument setting

- Sets the operation complete bit when all pending actions are complete

- Reads the installed options

<1–9> Reads a complete instrument setting from memory

<0> Reads the standard settings from the memory.

For a list of standard settings, see “Standard Settings” on page 21.

- Resets the instrument to standard settings.

For a list of standard settings, see “Standard Settings” on page 21.

<1–9> Saves the complete instrument setting to the

memory

<0–255> Sets the service request enable mask

- Reads the status byte

- Executes the instrument's self-test

- Waits until all pending actions are complete

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 19

SCPI Commands Reference Common Commands

*RCL

*TST

*SAV

Commands in the User Interface The following figure shows how the IEEE 488.2 Common

commands are implemented in the 81133A/81134A user interface.

20 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

Common Commands SCPI Commands Reference

Standard Settings

The following table shows the standard settings (Memory 0).

Parameter SCPI Command Reset Value Range

Outputs On/Off :OUTP[0|1|2] <value> 0 (OFF) 0 | 1| ON | OFF

Output Normal :OUTP[1|2]:POS <value> 0 (OFF) 0 | 1 | ON | OFF

Output Complement :OUTP[1|2]:NEG 0 (OFF) 0 | 1 | ON | OFF

Instrument Mode :FUNC <value> PATT PATTern|BURSt, <number>|RBURSt,

Burst :FUNC BURSt, <value> 1 1 … 16384

Repeated Burst :FUNC RBURS 4, 4 For both, 4 … 16384 in increments of 4

Frequency :FREQ <value> 15 MHz 15 MHz … 3.35 GHz

Period :PER <value> 66.666667ns 0.298507 ps … 66.666667 ns

Clock Mode :TRIG:SOUR Internal IMMediate, EXTernal, REFerence,

IDIRect, EDIRect

Channel Mode :FUNC:MOD[1|2]

<value>

PRBS Number :FUNC:MOD[1|2] PRBS,

<value>

Freq. Divider :OUTP[0|1|2]:DIV

<value>

Data Signal Mode :DIG[1|2]:SIGN:FORM

<value>

Var. Crossover :DIG[1|2]:SIGN:CROS

<value>

Var. Crossover mode :DIG[1|2]:SIGN:CROS:ST

AT <value >

Data Polarity :DIG[1|2]:SIGN:POL

<value>

Pulse Perf. DIAG:CHAN[1|2]:PPER

<value>

Delay Control Input :PM[1|2] <value> OFF OFF, ON

Delay Control Input Sensitivity

Delay :DEL[1|2] <value> 0 ns -5 ns … +230 ns

Phase :PHAS[1|2] <value> 0 see Delay

Pulse Width :WIDT[1|2] <value> 33.333333 ns 100 ps … (period -100 ps)

Duty Cycle :DCYC[1|2] <value> 50 % See Pulse Width

Deskew :DESK[1|2] <value> 0ps -10 ns … +10 ns

Polarity :POL[1|2] <value> NORMal NORMal|COMPlement

:PM[1|2]:SENS <value> 25 ps 25 ps | 250 ps

PULSe PULSe |SQUAre |DATa |PRBS,

23 (223 - 1) 5|6|7|8|9|10|11|12|13|14|15|23|

1 1, 2, 4, … 128

NRZ R1, RZ, NRZ

50 % 30 … 70 %

0 (disabled) 0| 1 | OFF | ON

NORMal NORMal, INVerted

NORMal NORMal|FAST|SMOoth

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 21

SCPI Commands Reference Common Commands

Parameter SCPI Command Reset Value Range

Low Level :VOLT[0|1|2]:LOW

<value>

High :VOLT[0|1|2]:HIGH

<value>

Offset :VOLT[0|1|2]:OFFS

<value>

Amplitude :VOLT[0|1|2] <value> 100 mV 50 mV … 2.00 V

Term. Voltage :VOLT[0|1|2]:TERM

<value>

Limit to current levels :VOLT[1|2]:LIM <value> OFF OFF, ON

Data Length :DIG:PATT:LENG <value> 32 32 … 8192 (in increments of 32)

Clock Input Termination

Clock Input Term. Voltage

Trigger Output Mode :OUTP0:SOUR <value> PERiodic PERiodic, BITStream

Trigger Output Divider :OUTP0:DIV <value> 1 1, 2, 3, … (231 - 1)

Trigger Output High see High Level 50 mV -1.95 V … +3.00 V

Trigger Output Low see Low Level -50 mV -2.00 … +2.95 V

Trigger Output Term. Voltage

Start Input Start Mode :ARM:SOUR <value> IMMediate IMMediate|MANual|EXTernal

Start Input Term. Voltage

Start Input Threshold :ARM:LEV <value> 100 mV -2.00 … +3.00 V

Start Input Start On :ARM:SLOP <value> POS (rising) POS, NEG (rising/falling)

:TRIG:TERM:STATE <value>

:TRIG:TERM <value> 0 mV -2.00 … +3.00 V

see Term. Voltage 0 mV -2.00 … +3.00 V

:ARM:TERM <value> 0 mV -2.00 … +3.00 V

-50 mV -2.00 V … +2.95 V

50 mV -1.95 V … +3.00 V

0 mV -1.975 V … +2.975 V

0 mV -2.00 V … +3.00 V

OFF ON, OFF

22 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

DIAGnostic Commands SCPI Commands Reference

:CAL:TIM

:DIAG:CHANnel[1|2] :PPERformance[?]

:TEST?

DIAGnostic Commands

The following table shows the Agilent 81133A/81134A Pulse Generator DIAGnostic Commands.

Command Parameter Description

:CAL:TIM

:DIAG

:CHANnel[1|2]

:PPERformance[?] NORMal | FAST

| SMOoth

Commands in the User Interface The following figure shows how the DIAGnostic commands are

implemented in the 81133A/81134A user interface.

Calibrates the timing system of the instrument

Sets/reads channel peak performance

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 23

SCPI Commands Reference DIAGnostic Commands

:CAL:TIM

Syntax

Form Set

Description Calibrates the timing system of the instrument.

NOTE Execution of this command can take about 15 minutes.

*RST value –

:CAL:TIM

:DIAG:CHANnel[1|2]:PPERformance

Syntax

Form Set & Query

Description This command is used to modify the specified transition time of

:DIAG:CHAN[1|2]:PPER[?]

the signal.

For the specified transition time, please refer to the Technical Specification delivered on the product CD.

Parameter NORMal|FAST|SMOoth

•Normal

Produces pulses with the standard transition time specified for the instrument.

For the specified transition time, please refer to the Technical Specification delivered on the product CD.

•Fast

Reduces the transition time. This leads to a higher slew rate but more overshoot.

• Smooth

Produces a rounder output pulse, with lower slew rate and less overshoot.

*RST value Normal

Example Set the Peak Performance to Fast.

:DIAG:CHANnel:PPER FAST

24 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

DIGital Commands SCPI Commands Reference

DIGital Commands

The following table shows the Agilent 81133A/81134A Pulse Generator DIGital commands:

Command Parameter Description

:DIGital[1|2]

[:STIMulus]

:PATTern

[:DATa][?] <data>, [HEX |

BIN | DUAL]

:LDATa <data>

:LENGth[?]

:SIGNal

:FORMat[?] RZ | NRZ | R1

:POLarity[?] NORMal |

:CROSsover :[VALUE][?]

:STATe[?] ON | OFF | 1 | 0Switches crossover on/off

Numeric Sets/reads data pattern length

COMPlement | INVerted

Numeric Sets/reads crossover

Sets/reads data in hexadecimal (default), binary or dual format; this command is for data pat terns with maximum 8192 bits

Sets data in hexadecimal format; this command is for data patterns larger than 8192 bits

in bits (32 ... 8192) in steps of 32

Sets/reads the signal mode

Sets/reads data polarity

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 25

SCPI Commands Reference DIGital Commands

:DIGital[1|2]:PATTern:LENGth[?]

:DIGital[1|2]:PATTern:[DATa][?]

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

:DIGital[1|2]:SIGNal:POLarity[?]

:DIGital[1|2]:SIGNal:CROSsover:[VALue][?]

:DIGital[1|2]:SIGNal:CROSsover:STATE[?]

Commands in the User Interface The following figures show how the DIGital commands are

implemented in the 81133A/81134A user interface.

26 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

DIGital Commands SCPI Commands Reference

:DIGital[1|2][:STIMulus]:PATTern[:DATa]

Syntax

Form Set & Query

Description This command is used to set or read the pattern data of one of

:DIG[1|2][:STIM]:PATT[:DAT][?]

the channels. The minimum length of these patterns is 32 bits, the maximum length is 8192 bits, the granularity is 32 bits. For patterns larger than 8192 bits, see “:DIGital[1|2][:STIMulus]:PATTern:LDATa” on page 29.

The data can be written in either hexadecimal, binary or dual format. The query returns the data in hexadecimal format.

For the command, the format is specified by the format parameter; HEX is the default.

• Hexadecimal

With the hexadecimal format, the characters passed as the data pattern will be interpreted as hexadecimal values.

The MSB of the first character becomes bit 0 of the data pattern.

•Binary

With the binary format, the ASCII values of the characters passed are used to build the data pattern.

•Dual

With the dual format, you can use “0” and “1” to build the data pattern.

Parameter <data>, [HEX | BIN | DUAL]

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 27

SCPI Commands Reference DIGital Commands

The <data> is an arbitrary block of program data as defined in IEEE 488.2 7.7.6.2, for example:

#181CF1011E, HEX

# Start of block

1 Length of the length of the data

8 Length of the data (in bytes)

1CF1011E 32 bits of pattern data

HEX Data in hex format

#23201001001001001010100101010100110, DUAL

# Start of block

2 Length of the length of the data

32 Length of the data (in bytes)

010...110 32 bits of pattern data

DUAL Data in dual format

#14@@@@, BIN

# Start of block

1 Length of the length of the data

4 Length of the data (in bytes)

@@@@ 32 bits of pattern data

BIN Data in binary format

*RST value 4 bytes with the binary value 00010001

Example The examples above would be sent as follows:

:DIG:PATT #181CF1011E[, HEX] :DIG:PATT? >#181CF1011E

:DIG:PATT #23201001001001001010100101010100110, DUAL :DIG:PATT? >#1849254AA6

:DIG:PATT #14@@@@, BIN :DIG:PATT? >#1840404040

28 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

DIGital Commands SCPI Commands Reference

Max. pattern size =

Max. pattern size (@ freq)

Frequency divider

:DIGital[1|2][:STIMulus]:PATTern:LDATa

Syntax

Form Set

Description This command is used to program long data patterns in

Parameter <data>

:DIG[1|2][:STIM]:PATT:LDAT

hexadecimal format. The minimum length of these patterns is 128 bits, the maximum length is 12 Mbits, the granularity is 128 bits. Patterns generated with this command are subject to various restrictions (see below). See also “:DIGital[1|2][:STIMulus]:PATTern[:DATa]” on page 27.

The <data> is an arbitrary block of hex program data as defined in IEEE 488.2 7.7.6.2, for example:

#532768AB03CDAD......

# Start of block

5 Length of the length of the data

32768 Length of the data

AB03CD... 32768 bytes of data for pattern

length of 131072 bits

Restrictions This command is subject to the following restrictions:

• Only pattern up to 12 Mbits and a granularity of 128 bits are allowed.

• Because of hardware restrictions, a complete 12 Mbit pattern can only be sent at higher frequency ranges:

Range Maximum Pattern Length

60 – 3360 Mhz 12 Mbit

30 – 60 Mhz 6 Mbit

15 – 30 Mhz 3 Mbit

• The frequency divider of a two- channel instrument also restricts the maximum pattern. The following equation is valid:

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 29

SCPI Commands Reference DIGital Commands

• The complete pattern is stored temporarily in the instrument. If there are no restrictions to the maximum pattern length regarding frequency and frequency divider, the complete pattern will always be continually emitted. If there are restrictions to the maximum pattern length, the stored pattern will be emitted up to the maximum pattern length and then repeated from the beginning.

• The channel mode must be data mode.

• The main mode of the instrument must be Pulse/Pattern. Burst and RBurst mode are not allowed.

• The extended pattern is lost by any of the following actions:

– Modifying the pattern in the pattern editor of the user

interface

– Sending another pattern by :DIG:PATT:DATA or

:DIG:PATT:LDAT

– Changing channel mode or main mode of the instrument

– Recalling a setting or resetting the instrument

– Restarting the instrument

In all these cases, the pattern length is set to the actual data length.

*RST value –

Example The above example would be sent as:

:DIG:PATT:LDAT #532768AB03CDAD......

30 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

DIGital Commands SCPI Commands Reference

:DIGital[1|2][:STIMulus]:PATTern:LENGth

Syntax

Form Set & Query

Description Defines the length of the data pattern. If the current pattern is

Parameter Numeric

*RST value 32

Example Define a data pattern length of 64 bits.

:DIG[1|2][:STIM]:PATT:LENG[?]

longer than the new value for :LENGth, the pattern is truncated. If the current pattern is shorter than the new value for :LENGth, the pattern is lengthened and the new bits are set to ’0’.

Valid values are: 32 … 8192 in steps of 32.

:DIG:PATT:LENG 64

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

Syntax

:DIG[1|2][:STIM]:SIGN:FORM[?]

Form Set & Query

Description This command is used to program the signal format for data and

PRBS signals:

Parameter RZ|NRZ|R1

•RZ Return to Zero. A pulse of 50% duty cycle is generated for each

•NRZ Non- Return to Zero. A pulse of 100% duty cycle is generated for each 1.

•R1 Return to One. A pulse of 100% duty cycle is generated for each

*RST value NRZ

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 31

SCPI Commands Reference DIGital Commands

Example Set data format to R1.

:DIG:SIGN:FORM R1

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

Syntax

Form Set & Query

Description This command is used to program the data polarity for Data and

NOTE This is not the same as the

Parameter NORMal|COMPlement|INVerted

*RST value NORMal

Example Logically invert the 32- bit data.

:DIG[1|2][:STIM]:SIGN:POL[?]

PRBS signals. The 32- bit data pattern is logically inverted, that is, 1 s are replaced with 0 s and vice versa.

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

command, which physically inverts the signal by swapping the OUTPUT and

INVerted are synonyms (INVerted is included for backwards compatibility).

:DIG:SIGN:POL INV

OUTPUT signals.

:DIGital[1|2][:STIMulus]:SIGNal: CROSsover:[VALue]

Syntax

Form Set & Query

Description If variable crossover mode is enabled, this command specifies a

32 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

:DIG[1|2][:STIM]:SIGN:CROS[?]

value to adjust the crossover point of the NRZ signal in PRBS or data mode, individually for each channel.

To enable the variable crossover mode, use “:DIGital[1|2][:STIMulus]:SIGNal: CROSsover:[STATe]” on page 34.

The variable crossover is used to artificially close the eye pattern, which simulates distortion.

DIGital Commands SCPI Commands Reference

50 %

Normal

Out

50 %

Compl.

Out

70 %

Compl.

Out

Normal

Out

70 %

NOTE This parameter has no influence if the delay control input for the

channel is switched on (

:PM[1|2] ON

The figure below shows the normal and complement output with the crossover point set to 50% and 70% respectively.

Parameter Numeric values (in %) in the range of 20 … 80.

*RST value 50

Example Set the variable crossover point to 70%.

:DIG:SIGN:CROS 70

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 33

SCPI Commands Reference DIGital Commands

:DIGital[1|2][:STIMulus]:SIGNal: CROSsover:[STATe]

Syntax

Form Set & Query

Description For each channel, the crossover mode of the NRZ signal in PRBS

Parameter ON|OFF|1|0

*RST value OFF|0

Example Enable the variable crossover mode.

:DIG[1|2][:STIM]:SIGN:CROS:STAT[?]

or data pattern mode can be enabled. This is used to artificially close the eye pattern, simulating distortion.

If you enabled the variable crossover mode, specify the variable crossover point with CROSsover:[VALue]” on page 32.

:DIG:SIGN:CROS:STAT ON

“:DIGital[1|2][:STIMulus]:SIGNal:

34 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

DISPlay Commands SCPI Commands Reference

DISPlay Commands

The following table shows the Agilent 81133A/81134A Pulse Generator DISPlay commands.

Command Parameter Description

:DISPlay

[:WINDow]

[:STATe][?] ON | OFF | 1 | 0Sets/reads front panel display

state

:DISPlay[:WINDow][:STATe]

Syntax

Form Set & Query

Description This command is used to turn the front panel display on and off.

NOTE The display is switched back on if a key on the instrument is

Parameter ON|OFF|1|0

*RST value ON

Example Switch off the front panel display.

:DISP[:WIND][:STAT][?]

Switching off the display improves the programming speed of the instrument.

pressed. The command

:SYSTem:PRESet

back on.

:DISP OFF

to perform a

*RST

switches the display back on. Use

*RST

without switching the display

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 35

SCPI Commands Reference MEASure Commands

:MEASure:FREQuency?

:MEASure:PERiod?

MEASure Commands

The following table shows the Agilent 81133A/81134A Pulse Generator MEASure commands:

Command Parameter Description

:MEASure

:FREQuency?

:PERiod?

Commands in the User Interface The following figure shows how the MEASure commands are

implemented in the 81133A/81134A user interface.

Read time base frequency

Read time base period

36 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

MEASure Commands SCPI Commands Reference

:MEASure:FREQuency?

Syntax

Form Query

Description This command is used to measure the operating frequency of the

NOTE The instrument is stopped when this command is executed. Thus,

NOTE When working in an automated test system, if the clock frequency

:MEAS:FREQ?

instrument.

In internal mode ( returned is the measured internal clock frequency (not the programmed value).

In external mode ( is that measured at the Clock Input connector. If an invalid signal, or no signal, is present at the Clock Input connector, a value of zero is returned.

The query does not return a value immediately, but waits for the internal frequency counter to complete its next measurement cycle. This can take about half a second.

during the measurement, no signals will be output.

is known, it is better to set it directly instead of reading it from the instrument. This is because:

:TRIGger:SOURce IMMediate

:TRIGger:SOURce EXTernal

) the frequency

) the frequency returned

• This method is faster since it eliminates the measurement time.

• The instrument is not stopped.

Parameter –

*RST value –

Example

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 37

:MEAS:FREQ?

SCPI Commands Reference MEASure Commands

:MEASure:PERiod?

Syntax

Form Query

Description This command is used to read the operating period of the

NOTE The instrument is stopped when this command is executed. Thus,

NOTE When working in an automated test system, if the clock frequency

:MEAS:PER?

instrument.

In internal mode ( the internal clock period.

In external mode ( that measured at the Clock Input connector. If an invalid signal, or no signal, is present at the Clock Input connector, a value of zero is returned.

The query does not return a value immediately, as it waits for the internal frequency counter to complete its next measurement cycle. This can take about half a second.

during the measurement, no signals will be output.

is known, it is better to set it directly instead of reading it from the instrument. This is because:

:TRIGger:SOURce IMMediate

:TRIGger:SOURce EXTernal

) the period returned is

• This method is faster since it eliminates the measurement time.

• The instrument is not stopped.

Parameter –

*RST value –

Example

:MEAS:PER?

38 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

OUTPut Commands SCPI Commands Reference

OUTPut Commands

The following table shows the Agilent 81133A/81134A Pulse Generator OUTPut commands.

Command Parameter Description

:OUTPut

[0|1|2]:DIVider[?] Numeric | MIN |

MAX

[0]:SOURce[?] PERiodic |

BITStream

[0|1|2][:STATe][?] ON | OFF | 1 | 0

[1|2]:NEG[?] ON | OFF | 1 | 0

[1|2]:POS[?] ON | OFF | 1 | 0

:CENTral[?] ON | OFF | 1 | 0

Set/read channel frequency divider

Set/read trigger source mode

Set/read channel outputs on and off

Set/read negative channel output on and off

Set/read positive channel output on and off

Set/read central output settings

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 39

SCPI Commands Reference OUTPut Commands

:OUTPut[0]:DIVider[?]

:OUTPut[1]:DIVider[?]

:OUTPut:CENTral[?]

OUTPut[1]:NEG[?]

OUTPut[1]:POS[?]

:OUTPut[0|1|2][:STATe][?]

Commands in the User Interface The following figures show how the DIAGnostic commands are

implemented in the 81133A/81134A user interface.

40 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

OUTPut Commands SCPI Commands Reference

:OUTPut[0|1|2]:DIVider

Syntax

Form Set & Query

Description This command is used to program the frequency divider

Parameter Numeric|MIN|MAX

:OUTP[0|1|2]:DIV[?]

parameters of the trigger output (0) and the channel outputs (1,

2).

The trigger output frequency is divided only when the trigger output is in Pulse mode (

You can program the divider in Data mode (

BITstream

output to pulse mode.

The channel output frequency is divided in square and pulse pattern mode only (

You can program the divider in data and PRBS pattern mode (

[SOURce]:FUNCtion:MODe[1|2] DATa|PRBS

until you select the square or pulse pattern mode.

) but it will have no effect until you select the trigger

:OUTPut0:SOURce PERiodic

[SOURce]:FUNCtion:MODe[1|2] SQUare|PULSe

), but it will have no effect

:OUTPut0:SOURce

*RST value 1

Specified Limits For trigger output (channel 0): 1 ... 231 – 1

For channels 1 and 2: 1, 2, 4, 8, 16, 32, 64, 128

Example Set Trigger Output Divider to 8.

:OUTP0:DIV 8

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 41

SCPI Commands Reference OUTPut Commands

:OUTPut0:SOURce

Syntax

Form Set & Query

Description This command programs the trigger output source mode.

:OUTP0:SOUR[?]

•PERiodic

This corresponds to Pulse mode on the front panel.

The trigger source is the internal clock, and a trigger pulse is generated every clock period, unless the divider parameter has been set to a value other than 1. The trigger signal always has 50% nominal duty cycle.

•BITStream

This corresponds to the Data mode on the front panel.

If the clock source is external, the trigger is always synchronized to the clock with a fixed delay (± a few picoseconds over the frequency range). PERiodic means that a trigger pulse is generated for every X clocks, BITStream means that X is set to the data length.

The trigger divider does not take the frequency divider of the channels into account. For a frequency divider of n, n trigger pulses are generated for each data packet, starting with the first edge of bit 0 of the data packet.

To get one trigger pulse per data packet when the channel divider factor is not equal to 1, the trigger mode must set to Trigger on pulse and the divider to n x X, where n is the frequency divider and X is the data length. For example, if the data length = 32 bits and the frequency divider of channel 1 = 2, the frequency divider of the trigger output has to be 64.

Parameter PERiodic|BITStream

*RST value PERiodic

Example Synchronize the trigger output signal to the data.

:OUTP0:SOUR BITS

42 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

OUTPut Commands SCPI Commands Reference

:OUTPut[0|1|2][:STATe]

Syntax

Form Set & Query

Description Switches the trigger output and channel outputs on or off, where 0

Parameter ON|OFF|1|0

*RST value OFF

Example Switch on the channel 1 outputs.

:OUTP[0|1|2][:STAT][?]

is the trigger output.

For the two channel outputs, both OUTPUT and OUTPUT are switched simultaneously. In query form, OFF is returned only if both OUTPUT and separately from the front panel, or by adding command.

:OUTP1 ON

OUTPUT are off. They can be controlled

:POS

:NEG

to the

:OUTPut[1|2]:NEG

Syntax

Form Set & Query

Description Switches the specified channel OUTPUT on or off.

Parameter ON|OFF|1|0

*RST value OFF

Example Switch off the channel 1 OUTPUT.

:OUTP[1|2]:NEG[?]

:OUTP1:NEG OFF

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 43

SCPI Commands Reference OUTPut Commands

:OUTPut[1|2]:POS

Syntax

Form Set & Query

Description Switches the specified channel OUTPUT on or off.

Parameter ON|OFF|1|0

*RST value OFF

Example Switch off the channel 1 OUTPUT.

:OUTP[1|2]:POS[?]

:OUTP1:POS OFF

:OUTPut:CENTral

Syntax

Form Set & Query

Description Sets or reads the central output settings.

:OUTP:CENT[?]

The OFF command forces all outputs (trigger output and channel outputs) to be switched off, the ON command switches on every output that is set to on by the other

:OUTPut

commands.

Parameter ON|OFF|1|0

*RST value 1

Example Switches off all output channels.

:OUTP:CENT OFF

44 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

SOURce Commands SCPI Commands Reference

SOURce Commands

The following table shows the Agilent 81133A/81134A Pulse Generator SOURce commands:

Command Parameter Description

[:SOURce]

:FUNCtion

[:SHAPe][?] PATTern|

BURSt, <numeric>| RBURSt, <numeric>, <numeric>

:MODE[1|2][?] PULSe|SQUare|

DATa|PRBS <numeric>

:FREQuency

[:CW|:FIXed][?] Numeric

[GHz|MHz|kHz|Hz] | MIN|MAX

:PHASe

[:ADJ][1|2][?] Numeric|MIN|MAX

[:PULSe]

:DCYCle[1|2][?] Numeric|MIN|MAX

:DELay[1|2][?] Numeric

[ps|ns|us|ms|s] | MIN|MAX

:DESKew[1|2][?] Numeric

[ps|ns|us|ms|s]| MIN|MAX

:DHOLd[1|2][?] DELay|PHASe

:PERiod[?] Numeric

[ps|ns|us|ms|s] | MIN|MAX

:POLarity[1|2][?] NORMal|

COMPlement| INVerted

:WIDTh[1|2][?] Numeric

[ps|ns|us|ms|s] | MIN|MAX

Sets/reads instrument mode

Sets instrument main mode

Sets/reads internal clock frequency

Sets/reads channel phase

Sets/reads channel duty cycle

Sets/reads channel delay

Sets/reads channel deskew

Holds Delay|Phase fixed with varying frequency

Sets/reads internal clock period

Sets/reads channel polarity

Sets/reads channel width

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 45

SCPI Commands Reference SOURce Commands

Command Parameter Description

PM[1|2][?] OFF|ON

:SENSitivity 25ps|250ps

:VOLTage

[0|1|2][:LEVel]

[:IMMediate]

[:AMPLitude][?] Numeric [uV|mV|V]

|MIN|MAX

:OFFSet[?] Numeric [uV|mV|V]

|MIN|MAX

:HIGH[?] Numeric [uV|mV|V]

|MIN|MAX

:LOW[?] Numeric [uV|mV|V]

|MIN|MAX

:TERM[?] Numeric [uV|mV|V]

[1|2]:LIMit

[:AMPLitude]?

:OFFSet?

:HIGH?

:LOW?

:STATe[?] ON|OFF|1|0

Sets/reads jitter modulation

Sets jitter modulation sensitivity

Sets/reads channel amplitude

Sets/reads channel offset

Sets/reads channel high-level

Sets/reads channel lowlevel

Sets/reads termination voltage

Reads channel amplitude limit

Reads channel offset limit

Reads channel high-level limit

Reads channel low-level limit

Sets/reads limited output mode on and off

46 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

SOURce Commands SCPI Commands Reference

[:SOURce]:FUNCtion[:SHAPe]

[:SOUR]:FREQ[:CW|:FIX][?]

[:SOUR][:PULS]:PER[?]

[:SOUR]:FUNC:MOD[1|2][?]

[:SOUR]:PHAS[:ADJ][1|2][?]

[:SOUR][:PULS]:DEL[1|2][?]

[:SOUR][:PULS]:DESK[1|2][?]

[:SOUR][:PULS]:DCYC[1|2][?]

[:SOUR][:PULS]:WIDT[1|2][?]

[:SOUR]:PM[1|2][?]

[:SOUR]:VOLT[0|1|2][:LEV][:IMM]:TERM[?]

Commands in the User Interface The following figures show how the DIAGnostic commands are

implemented in the 81133A/81134A user interface.

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 47

SCPI Commands Reference SOURce Commands

[:SOUR]:VOLT[1|2]:LIM:STAT[?]

[:SOUR]:VOLT[1|2]:LEV[:IMM]:AMPL[?]

[:SOUR]:VOLT[1|2]:LEV[:IMM]:OFFS[?]

[:SOUR]:VOLT[1|2]:LEV[:IMM]:HIGH[?]

[:SOUR]:VOLT[1|2]:LEV[:IMM]:LOW[?]

[:SOUR]:VOLT[1|2]:LEV[:IMM]:TERM[?]

48 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

SOURce Commands SCPI Commands Reference

[:SOUR]:VOLT0:LEV[:IMM]:OFFS[?]

[:SOUR]:VOLT0:LEV[:IMM]:AMPL[?]

[:SOUR]:VOLT0:LEV[:IMM]:HIGH[?]

[:SOUR]:VOLT0:LEV[:IMM]:LOW[?]

[:SOUR]:VOLT0:LEV[:IMM]:TERM[?]

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 49

SCPI Commands Reference SOURce Commands

[:SOURce]:FUNCtion[:SHAPe]

Syntax

Form Set & Query

Description Defines the main mode of the signal to be generated

Parameter PATTern|BURSt, <numeric>|RBURSt, <numeric>, <numeric>

[:SOUR]:FUNC[:SHAP][?]

(pulse/pattern, burst, or repetitive burst mode).

•PATTern

In this mode, each channel can be set independently to generate:

– Square waves of fixed width

– Pulses with selectable width or duty cycle

– Data in either RZ, R1 or NRZ format

– Pseudo random bit stream (PRBS) polynomials

To generate these signals, use “[:SOURce]:FUNCtion:MODe[1|2]” on page 51.

• BURSt, <number of repeated data>

This mode enables you to generate a burst consisting of data repeated n times followed by continuous zero data.

*RST value: 1

• RBURSt, <number of repeated data>, <p>

This mode enables you to generate a repeated burst consisting of data repeated n times. A pause of zeros is inserted between two successive bursts. The pause of zeros is calculated by:

Length of the pause = Burst Length × p

*RST values: 4, 4

*RST value PAT T

Example Generate a burst of data repeated 5 times:

:FUNC BURSt, 5

50 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

SOURce Commands SCPI Commands Reference

[:SOURce]:FUNCtion:MODe[1|2]

Syntax

Form Set & Query

Description Use this command to set the pattern mode for each channel. The

Parameter PULSe | SQUare | DATa | PRBS, <numeric>

[:SOUR]:FUNC:MOD[1|2][?]

pattern modes specify pulses, clocks, data patterns or PRBS signals.

•SQUare

Generates a square wave (clock) of fixed width (50% duty cycle). The frequency of the square wave can optionally be divided by 1,

2, 4, …, 128 with

•PULSe

Generates pulses with selectable width or duty cycle. The frequency of the pulses can optionally be divided by 1, 2, 4, …,

128 with

•DATa

Generates data in either RZ, R1 or NRZ format as specified with

:DIG[1|2][:STIM]:SIGN:FORM[?]

In RZ and R1 mode, the pulse width can be set. Set the pulse width with

The frequency of the data can optionally be divided by 1, 2, 4, …, 128 with

:OUTPut[1|2]:DIVider

[:SOUR][:PULS]:WIDT[1|2][?]

:OUTPut[1|2]:DIVider

• PRBS, <numeric>

Generates a PRBS polynomial of selectable type in either RZ, R1 or NRZ format. In RZ and R1 mode, the pulse width can be set. Set the pulse width with

The frequency of the PRBS signals can optionally be divided by 1,

2, 4, …, 128 with

Valid values are: 25–1 ... 231–1

*RST value PULSe

Example Generate a PRBS signal of 25–1 on channel 1:

1. Set the Pulse/Pattern mode:

[:SOUR]:FUNC[:SHAP] PATT

2. Set the PRBS signal:

[:SOUR]:FUNC:MOD[1|2] PRBS, 31

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 51

[:SOUR][:PULS]:WIDT[1|2][?]

:OUTPut[1|2]:DIVider

SCPI Commands Reference SOURce Commands

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

Syntax

Form Set & Query

Description This command programs the internal clock frequency, and also

Parameter Numeric [GHz|MHz|kHz|Hz] | MIN|MAX

Value coupling Period = 1 / Frequency

*RST value 15.0E6 Hz

Specified limits 15E6 ... 3.35E9 Hz, with overclocking up to 3.35E9 Hz

Example Select the clock with frequency 1.2 GHz.

[:SOUR]:FREQ[:CW|:FIX][?]

selects the internal clock as time base if it is not already selected.

:FREQ 1.2GHz

52 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

SOURce Commands SCPI Commands Reference

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

Syntax

Form Set & Query

Description This command programs the pulse phase for a channel.

Parameter Numeric | MIN|MAX

Parameter Suffix DEG or RAD. A parameter without suffix is interpreted as degrees.

Functional coupling Programming the pulse phase also executes

Value coupling Delay = (Phase / 360) * Period

Range coupling Deskew

*RST value 0.0

Specified limits –6000° … +279000°, constrained by delay and period limits.

Absolute limits –6000° … +279000°, constrained by delay and period limits.

[:SOUR]:PHAS[:ADJ][1|2][?]

[:SOURce][:PULSe]:HOLD PHASe

constant when the signal frequency is changed.

so that the pulse phase is held

Example Set channel 1 phase delay to –180°.

:PHAS1 -180

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 53

SCPI Commands Reference SOURce Commands

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

Syntax

Form Set & Query

Description This command programs the duty cycle for a channel.

NOTE The duty cycle cannot be set:

Parameter Numeric|MIN|MAX

Functional coupling Programming the pulse duty cycle also executes

Value coupling Width = (duty cycle / 100) * Period

Range coupling Frequency, Period

[:SOUR][:PULS]:DCYC[1|2][?]

• In direct mode. To query the clock source, see “:TRIGger:SOURce” on page 87.

• If signal mode is set to NRZ. To query the signal mode, see “:DIGital[1|2][:STIMulus]:SIGNal:FORMat” on page 31.

[:SOURce][:PULSe]:HOLD DCYCLE

constant when the signal frequency is changed.

so that the pulse duty cycle is held

*RST value 50% (derived from WIDth and PERiod)

NOTE The DCYCle command holds the PERiod and WIDth values in

proportion (if one value is increased 50 %, the other value is also increased 50 %). Its limits are therefore dependent on the limits of PERiod and WIDth.

Example Set channel 1 duty cycle to 66%.

:DCYC1 66

54 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

SOURce Commands SCPI Commands Reference

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

Syntax

Form Set & Query

Description This command programs the pulse delay for a channel.

Parameter Numeric [ps|ns|us|ms|s]|MIN|MAX

Functional coupling Programming the pulse delay also executes the

Value coupling Phase = (Delay / Period) * 360

Range coupling Deskew

*RST value 0.0

Specified limits –5 ns … + 230 ns

Absolute limits –5 ns <= <value in absolute delay time> + <Deskew> <= 230 ns

Example Set Channel 1 Delay to 500 ps.

[:SOUR][:PULS]:DEL[1|2][?]

[:SOURce][:PULSe]:DHOLD DELay

constant when the signal frequency is changed.

s so that the pulse delay is held

:DEL1 500PS

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 55

SCPI Commands Reference SOURce Commands

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

Syntax

Form Set & Query

Description This command programs the deskew for a channel. The deskew

Parameter Numeric [ps|ns|us|ms|s]|MIN|MAX

Range coupling Delay, Phase

*RST value 0.0

Specified limits –10E–9 … 10E–9, but deskew and delay must be within the delay

Absolute limits –10E–9 … 10E–9

Example Set Channel 1 deskew to –155 ps.

[:SOUR][:PULS]:DESK[1|2][?]

allows you to move the zero-point of the delay (and phase) parameter by ±

The final delay at the output is Delay + Deskew.

limits.

:DESK1 -155PS

10 ns.

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

Syntax

Form Set & Query

Description Defines whether the pulse delay or the pulse phase of a channel is

Parameter DELay|PHASe

*RST value DELay

Example Hold Channel 1 Delay fixed when frequency varies.

56 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

[:SOUR][:PULS]:DHOL[1|2][?]

held constant when the signal frequency is changed.

:DHOL1 DEL

SOURce Commands SCPI Commands Reference

[:SOURce][:PULSe]:PERiod

Syntax

Form Set & Query

Description This command programs the internal clock period, and also selects

Parameter Numeric [ps|ns|us|ms|s]|MIN|MAX

Functional coupling Programming the signal period, or frequency, also executes

Value coupling Frequency = 1 / Period

Range coupling Width, Dutycycle, Phase and Pulse/Data mode selection.

*RST value 66.6 ns

Specified limits 299E–12 sec … 66.6E–9 sec

Instrument limits 297.61905E–12 sec … 66.66667E–9 sec

Example Select internal clock with period 750 ps.

[:SOUR][:PULS]:PER[?]

the internal clock time base if it has not already been selected.

:TRIGger:SOURce IMMediate

to select the internal clock.

:PER 750PS

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

Syntax

Form Set & Query

Description This command programs the output polarity of a channel.

Parameter NORMal|COMPlement|INVerted

*RST value NORMal

Example Invert the Channel 1 outputs.

[:SOUR][:PULS]:POL[1|2][?]

COMPlement and INVerted are synonyms (INVerted is included for backwards compatibility).

:POL1 INV

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SCPI Commands Reference SOURce Commands

NOTE This is not the same as the

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

inverts the 32- bit data on the channels by swapping 1s with 0s and vice- versa.

command, which logically

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

Syntax

Form Set & Query

Description Programs the pulse width for a channel.

Parameter Numeric [ps|ns|us|ms|s]|MIN|MAX

Functional coupling Programming the pulse width also executes

Value coupling Dutycycle = (Width / Period) * 100

Range coupling Frequency, Period

*RST value 50% of Period

Specified limits 100E–12 … (Period – 100E–12) sec

Absolute limits 100 ps <= <value> <= <Period value> –100 ps && <value> < 10 ns

Example Set Channel 1 pulse width to 1 ns.

[:SOUR][:PULS]:WIDT[1|2][?]

[:SOURce][:PULSe]:HOLD WIDTh

constant when the signal frequency is changed.

so that the pulse width is held

:WIDT1 1NS

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[:SOURce]:PM[1|2]

Syntax

Form Set & Query

Description Enables the jitter modulation.

Parameter OFF|ON

*RST value OFF

Example Enable the jitter modulation on channel 1.

[:SOUR]:PM[1|2][?]

PM1 ON

[:SOURce]:PM[1|2]:SENSitivity

Syntax

Form Set

Description Sets jitter modulation sensitivity.

[:SOUR]:PM[1|2]:SENS

You now have to apply an external source (–0.5 V … 0.5 V max) for jitter modulation to the Delay Control Input at the instrument’s front panel:

• If you apply a source of 500 mV, the signal delay will be increased by 250 ps/25 ps.

• If you apply a source of –500 mV, the signal delay will be decreased by 250 ps/25 ps.

Between –500 mV and +500 mV, the signal delay increases/decreases lineally to the Delay Control Input, for example, a source of +200 mV results in a delay of 250 ps/V * 200 mV = 50 ps.

Parameter 25ps|250ps

Jitter modulation is turned on with fixed sensitivity of 50 ps/V or 500

ps/V.

*RST value 25 ps

Example Set the delay control input to 25 ps.

[:SOUR]:PM[1|2]:SENS 25ps

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SCPI Commands Reference SOURce Commands

[:SOURce]:VOLTage[0|1|2][:LEVel] [:IMMediate][:AMPLitude]

Syntax

Form Set & Query

Description Programs the amplitude of the output signal for the trigger output

Parameter Numeric [uV|mV|V] |MIN|MAX

Value coupling High = Offset + (Amplitude / 2)

Range coupling Offset

*RST value Trigger output (0): 100 mV

Specified limits Trigger output (0): 50 mV... 2.0 V

Absolute limits Trigger output (0): 2.0 V

[:SOUR]:VOLT[0|1|2][:LEV][:IMM][:AMPL][?]

and the channels.

Low = Offset – (Amplitude / 2)

Channels 1 and 2: 100 mV

Channels 1 and 2: 50 mV… 2.0 V

Channels 1 and 2: 2.0 V

Example Set Trigger Output amplitude to 1 V.

:VOLT0 1V

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[:SOURce]:VOLTage[0|1|2][:LEVel] [:IMMediate]:OFFSet

Syntax

Form Set & Query

Description Programs the offset of the output signal for the trigger output and

Parameter Numeric [uV|mV|V] |MIN|MAX

Value coupling High = Offset + (Amplitude / 2)

Range coupling Amplitude

*RST value Trigger output (0): 0 V

Specified limits Trigger channel (0): –1.975 V … +2.975 V

Example Set Trigger Output offset to –100 mV.

[:SOUR]:VOLT[0|1|2][:LEV][:IMM]:OFFS[?]

the channels.

Low = Offset – (Amplitude / 2)

Channels 1 and 2: 0 V

Channels 1 and 2: –1.975 V … +2.975 V

:VOLT0:OFFS -100MV

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SCPI Commands Reference SOURce Commands

[:SOURce]:VOLTage[0|1|2][:LEVel] [:IMMediate]:HIGH

Syntax

Form Set & Query

Description Programs the high- level of the output signal for the trigger output

Parameter Numeric [uV|mV|V] |MIN|MAX

Value coupling Amplitude = High – Low

Range coupling Low- level

*RST value Trigger channel (0): 0.1 V

Specified limits Trigger channel (0): –1.95 … +3.0 V

Absolute limits Trigger output (0): –2.2 … +3.2 V

[:SOUR]:VOLT[0|1|2][:LEV][:IMM]:HIGH[?]

and the channels.

Offset = (High – Low) / 2

Channels 1 and 2: 0.1 V

Channels 1 and 2: –1.95 ... +3.0 V

Channels 1 and 2: –2.2 … +3.2 V

Example Set Channel 1 high- level to –200 mV.

:VOLT1:HIGH -200MV

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[:SOURce]:VOLTage[0|1|2][:LEVel] [:IMMediate]:LOW

Syntax

Form Set & Query

Description Programs the low- level of the output signal for the trigger output

Parameter Numeric [uV|mV|V] |MIN|MAX

Value coupling Amplitude = High – Low

Range coupling High- level

*RST value Trigger channel (0): 0.0 V

Specified limits Trigger channel (0): –2.0 … +2.95 V

Absolute limits Trigger output (0): –2.2 … +3.2 V

[:SOUR]:VOLT[0|1|2][:LEV][:IMM]:LOW[?]

and the channels.

Offset = (High – Low) / 2

Channels 1 and 2: 0.0 V

Channels 1 and 2: –2.0 … +2.95 V

Channels 1 and 2: –2.2 … +3.2 V

Example Set Channel 1 low-level to –1 V.

:VOLT1:LOW -1V

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SCPI Commands Reference SOURce Commands

[:SOURce]:VOLTage[0|1|2][:LEVel] [:IMMediate]:TERM

Syntax

Form Set & Query

Description Programs the termination voltage of the output signal for the

Parameter Numeric [uV|mV|V]

*RST value Trigger output (0): 0.0 V

Specified limits Trigger output (0): –2.0 V … +3.0 V

Example Set Channel 1 termination voltage to 1 V.

[:SOUR]:VOLT[0|1|2][:LEV][:IMM]:TERM[?]

trigger output and the channels.

Channels 1 and 2: 0.0 V

Channels 1 and 2: –2.0 V … +3.0 V

:VOLT1:TERM 1V

[:SOURce]:VOLTage[1|2]:LIMit [:AMPLitude]?

Syntax

Form Query

Description Reads the current setting of the amplitude limit. The result is only

*RST value 100 mV

Example Read Channel 1 amplitude limit.

[:SOUR]:VOLT[1|2]:LIM[:AMPL]?

valid if the “Limit to current levels” output mode is currently on (

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

:VOLT1:LIM?

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SOURce Commands SCPI Commands Reference

[:SOURce]:VOLTage[1|2]:LIMit:OFFSet?

Syntax

Form Query

Description This command reads the current setting of the offset limit. The

*RST value 0 mV

Example Read Channel 1 offset limit.

[:SOUR]:VOLT[1|2]:LIM:OFFS?

result is only valid if “Limit to current levels” output mode is currently on (

:VOLT1:LIM:OFFS?

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

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

Syntax

Form Query

Description This command reads the current setting of the high- level limit. The

[:SOUR]:VOLT[1|2]:LIM:HIGH?

result is only valid if Limited output mode is currently on (

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

*RST value 100 mV

Example Read Channel 1 high- level limit.

:VOLT1:LIM:HIGH?

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

Syntax

Form Query

Description This command reads the current setting of the low- level limit. The

*RST value 0 V

Example Read Channel 1 low-level limit.

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 65

[:SOUR]:VOLT[1|2]:LIM:LOW?

result is only valid if “Limit to current values” mode is currently on (

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

:VOLT1:LIM:LOW?

SCPI Commands Reference SOURce Commands

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

Syntax

Form Set & Query

Description Switches the “Limit to current values” output mode on or off.

Parameter ON|OFF|1|0

*RST value OFF

Example Switch on Channel 1 Limited output mode.

[:SOUR]:VOLT[1|2]:LIM:STAT[?]

When you switch on Limited output mode the current high-level and low-level parameters are taken as limit values restricting the available ranges of all output- level parameters. You cannot program the output- levels beyond these temporary limits, until you switch off Limited output mode. The limits apply whether you program high/low levels or amplitude/offset levels.

:VOLT1:LIM:STAT ON

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:QUEStionable:VOLTage

(not used)

:QUEStionable:FREQuency

Frequency Range

PLL Unlocked

Ext. Ref. Missing

:QUEStionable:MONotony

(not used)

*ESR?

Operation Complete

Query Error

Standard Event Status

Device Dep. Error

Execution Error

Command Error

Power On

Questionable Status

Operation Status

(not used)

*STB?

Standard Byte

Status Handling Commands

The IEEE 488.2 specification requires status registers that contain information about the instrument’s hardware and firmware. For the Agilent 81133A/81134A Pulse Generator, the status registers have the following structure:

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SCPI Commands Reference Status Handling Commands

The following table shows the Agilent 81133A/81134A Pulse Generator Status Handling Commands:

Command Parameter Description

:STATus

:OPERation

[:EVENt]?

:CONDition?

:ENABle[?]

:NTRansition[?]

:PTRansition[?]

:PRESet

:QUEStionable

[:EVENt]?

:CONDition?

:ENABle[?]

:NTRansition[?]

:PTRansition[?]

:VOLTage

[:EVENt]?

:CONDition?

:ENABle[?]

:NTRansition[?]

:PTRansition[?]

:FREQuency

[:EVENt]?

:CONDition?

:ENABle[?]

Numeric Sets/reads operation enable register

Numeric Sets/reads operation negative-

Numeric Sets/reads operation positive-

Numeric Sets/reads questionable enable

Numeric Sets/reads questionable negative-

Numeric Sets/reads questionable positive-

Numeric Sets/reads questionable voltage

Numeric Sets/reads questionable frequency

Reads operation event register

Reads operation condition register

transition filter

Clears and presets status groups

Reads questionable event register

Reads questionable condition register

transition filter

Reads questionable voltage event register

Reads questionable voltage condition register

enable register

negative-transition register

positive-transition register

Reads questionable frequency event register

Reads questionable frequency condition register

enable register

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Command Parameter Description

:NTRansition[?]

:PTRansition[?]

:MONotony

[:EVENt]?

:CONDition?

:ENABle[?]

:NTRansition[?]

:PTRansition[?]

Numeric Sets/reads questionable frequency

negative-transition register

Numeric Sets/reads questionable frequency

positive-transition register

Reads questionable monotony event register

Reads questionable monotony condition register

Numeric Sets/reads questionable monotony

enable register

Numeric Sets/reads questionable monotony

negative-transition register

Numeric Sets/reads questionable monotony

positive-transition register

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SCPI Commands Reference Status Handling Commands

:STATus:OPERation

This command tree accesses the OPERation status group.

The OPERation status group is not used by the Agilent 81133A/81134A Pulse Generator, therefore this command tree is redundant.

:STATus:PRESet

Syntax

Form Event

Description This command

:STAT:PRES

• clears all status group event- registers

• clears the error queue

• presets the status group enable, PTR, and NTR registers as follows

Status Group Register Preset Value

OPERation ENABle 0000000000000000

QUEStionable ENABle 0000000000000000

QUEStionable:VOLTage ENABle 0111111111111111

QUEStionable:FREQuency ENABle 0111111111111111

QUEStionable:MONotony ENABle 0111111111111111

PTR 0111111111111111

NTR 0000000000000000

PTR 0111111111111111

NTR 0000000000000000

PTR 0111111111111111

NTR 0000000000000000

PTR 0111111111111111

NTR 0000000000000000

PTR 0111111111111111

NTR 0000000000000000

Parameter –

*RST value –

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:STATus:QUEStionable

This command tree accesses the QUEStionable status group.

The QUEStionable status group contains the summary bits from the QUEStionable:VOLTage, :FREQuency and MONotony status group.

The following commands are used to access the registers within the status group.

:STATus:QUEStionable[:EVENt]?

Syntax

Form Query

Description Reads the event register in the QUEStionable status group.

Parameter –

*RST value –

:STAT:QUES[:EVEN]?

:STATus:QUEStionable:CONDition?

Syntax

Form Query

Description Reads the condition register in the QUEStionable status group.

NOTE The Agilent 81133A/81134A Pulse Generator does not use this

:STAT:QUES:COND?

condition register, therefore, this command is redundant.

Parameter –

*RST value –

:STATus:QUEStionable:ENABle

Syntax

Form Set & Query

Description Sets or queries the enable register in the QUEStionable status

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:STAT:QUES:ENAB[?]

group.

SCPI Commands Reference Status Handling Commands

Parameter Numeric

*RST value –

Specified limits 0 … 32767

:STATus:QUEStionable:NTRansition

Syntax

Form Set & Query

Description Sets or queries the negative- transition register in the QUEStionable

NOTE The Agilent 81133A/81134A Pulse Generator does not use the

Parameter Numeric

*RST value –

Specified limits 0 … 32767

:STAT:QUES:NTRansition[?]

status group.

transition registers of the QUEStionable status group, therefore, this command is redundant.

:STATus:QUEStionable:PTRansition

Syntax

:STAT:QUES:PTRansition[?]

Form Set & Query

Description Sets or queries the positive- transition register in the QUEStionable

status group.

NOTE The Agilent 81133A/81134A Pulse Generator does not use the

transition registers of the QUEStionable status group, therefore, this command is redundant.

Parameter Numeric

*RST value –

Specified limits 0 … 32767

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Status Handling Commands SCPI Commands Reference

:STATus:QUEStionable:VOLTage

This command tree accesses the QUEStionable:VOLTage status group. The QUEStionable:VOLTage status group monitors the currently programmed output voltage levels against their specified ranges.

The following commands are used to access the registers within the status group.

:STATus:QUEStionable:VOLTage[:EVENt]?

Syntax

Form Query

Description Reads the event register in the QUEStionable:VOLTage status

Parameter –

*RST value –

:STAT:QUES:VOLT[:EVEN]?

group.

:STATus:QUEStionable:VOLTage:CONDition?

Syntax

Form Query

Description Reads the condition register in the QUEStionable:VOLTage status

Parameter –

*RST value –

:STAT:QUES:VOLT:COND?

group.

:STATus:QUEStionable:VOLTage:ENABle

Syntax

Form Set & Query

Description Sets or queries the enable register in the QUEStionable:VOLTage

Parameter Numeric

*RST value –

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 73

:STAT:QUES:VOLT:ENAB[?]

status group.

SCPI Commands Reference Status Handling Commands

Specified limits 0 … 32767

:STATus:QUEStionable:VOLTage:NTRansition

Syntax

Form Set & Query

Description Sets or queries the negative- transition register in the

Parameter Numeric

*RST value –

Specified limits 0 … 32767

:STAT:QUES:VOLT:NTR[?]

QUEStionable:VOLTage status group.

:STATus:QUEStionable:VOLTage:PTRansition

Syntax

Form Set & Query

Description Sets or queries the positive- transition register in the

:STAT:QUES:VOLT:PTR[?]

QUEStionable:VOLTage status group.

Parameter Numeric

*RST value –

Specified limits 0 … 32767

:STATus:QUEStionable:FREQuency

This command tree accesses the QUEStionable:FREQuency status group.

The QUEStionable:FREQuency status group monitors the currently programmed frequency against the specified range, detects if the PLL in unlocked and indicates if there is a valid signal at the time base external input.

The following commands are used to access the registers within this status group.

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Status Handling Commands SCPI Commands Reference

:STATus:QUEStionable:FREQuency[:EVENt]?

Syntax

Form Query

Description Reads the event register in the QUEStionable:FREQency status

Parameter –

*RST value –

:STAT:QUES:FREQ[:EVEN]?

group.

:STATus:QUEStionable:FREQuency:CONDition?

Syntax

Form Query

Description Reads the condition register in the QUEStionable:FREQency status

Parameter –

:STAT:QUES:FREQ:COND?

group.

*RST value –

:STATus:QUEStionable:FREQuency:ENABle

Syntax

Form Set & Query

Description Sets or queries the enable register in the QUEStionable:FREQency

Parameter Numeric

*RST value –

Specified limits 0 … 32767

:STAT:QUES:FREQ:ENAB[?]

status group.

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SCPI Commands Reference Status Handling Commands

:STATus:QUEStionable:FREQuency:NTRansition

Syntax

Form Set & Query

Description Sets or queries the negative- transition register in the

Parameter Numeric

*RST value –

Specified limits 0 … 32767

:STAT:QUES:FREQ:NTR[?]

QUEStionable:FREQency status group.

:STATus:QUEStionable:FREQuency:PTRansition

Syntax

FormForm Set & Query

Description Sets or queries the positive- transition register in the

:STAT:QUES:FREQ:PTR[?]

QUEStionable:FREQency status group.

Parameter Numeric

*RST value –

Specified limits 0 … 32767

:STATus:QUEStionable:MONotony

This command tree accesses the QUEStionable:MONotony status group.

The QUEStionable:MONotony status group monitors the frequency, width, delay and amplitude parameters. The range of these parameters is made up of several internal ranges and when the parameter moves from one internal range to the next a discontinuity can occur. For example, increasing the frequency at a range boundary could cause the actual output frequency to decrease slightly. The range boundaries also vary with temperature, and a significant temperature change could cause the instrument to move to the next range in order to maintain the current parameter within specification.

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Status Handling Commands SCPI Commands Reference

When a parameter range change occurs, the corresponding bit in the QUEStionable:MONotony status event register is set to indicate that the output signal may not vary monotonically with the programmed parameter value.

The following commands are used to access the registers within the status group.

:STATus:QUEStionable:MONotony[:EVENt]?

Syntax

Form Query

Description This command reads the event register in the

Parameter –

*RST value –

:STAT:QUES:MON[:EVEN]?

QUEStionable:MONotony status group.

:STATus:QUEStionable:MONotony:CONDition?

Syntax

Form Query

Description This command reads the condition register in the

NOTE The Agilent 81133A/81134A Pulse Generator does not use the

:STAT:QUES:MON:COND?

QUEStionable:MONotony status group.

condition register of the QUEStionable:MONotony status group, therefore, this command is redundant.

Parameter –

*RST value –

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SCPI Commands Reference Status Handling Commands

:STATus:QUEStionable:MONotony:ENABle

Syntax

Form Set & Query

Description Sets or queries the enable register in the QUEStionable:MONotony

Parameter Numeric

*RST value –

Specified limits 0 … 32767

:STAT:QUES:MON:ENAB[?]

status group.

:STATus:QUEStionable:MONotony:NTRansition

Syntax

Form Set & Query

Description Sets or queries the negative- transition register in the

:STAT:QUES:MON:NTR[?]

QUEStionable:MONotony status group.

NOTE The Agilent 81133A/81134A Pulse Generator does not use the

transition registers of the QUEStionable:MONotony status group, therefore, this command is redundant.

Parameter Numeric

*RST value –

Specified limits 0 … 32767

:STATus:QUEStionable:MONotony:PTRansition

Syntax

Form Set & Query

Description This command sets or queries the positive- transition register in

:STAT:QUES:MON:PTR[?]

the QUEStionable:MONotony status group.

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SYSTem Commands SCPI Commands Reference

NOTE The Agilent 81133A/81134A Pulse Generator does not use the

transition registers of the QUEStionable:MONotony status group, therefore, this command is redundant.

Parameter Numeric

*RST value –

Specified limits 0 … 32767

SYSTem Commands

The following table shows the Agilent 81133A/81134A Pulse Generator SYSTem Commands:

Command Parameter Description

:SYSTem

:ERRor?

:KEY[?]

:PRESet

:SET[?]

:VERSion?

:COMMunicate

:LAN

[:SELF]

:ADDRess

:SMASk

:DGATeway

Numeric Simulates key press or reads key

Block data Sets/reads complete instrument

String Sets/reads instrument's LAN

String Sets/reads subnet mask of current

String Sets/reads default Gateway for the

Reads error queue

queue

*RST without changing display state

setting

Reads SCPI compliance version

address. String format is A.B.C.D with A,B,C,D is number between 1 and 255

LAN. String format is similar to :ADDR

instrument. String format is similar to :ADDR

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SCPI Commands Reference SYSTem Commands

:COMMunicate:GPIB[:SELF]:ADDR

:COMMunicate::LAN[:SELF]:ADDRess

:COMMunicate::LAN[:SELF]:SMASk

:COMMunicate::LAN[:SELF]:DHCP

:COMMunicate::LAN[:SELF]:DGATeway

Command Parameter Description

:HADDRess

:NAME

:DHCP 1|0|ON|OFF

:GPIB

[:SELF]

:ADDR

String Set/read host LAN address for the

alphanumeric Sets the LAN name for the

Numeric Sets/reads GPIB bus No. A value

instrument. This setting is important for FTP transfer

instrument

Enables/disables DHCP configuration

between 0 to 30 is required

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SYSTem Commands SCPI Commands Reference

:SYSTem:ERRor?

Syntax

Form Query

Description This command is used to read the Agilent 81133A/81134A Pulse

Parameter –

*RST value –

:SYST:ERR?

Generator error queue. The Agilent 81133A/81134A Pulse Generator error queue can store up to 32 error codes on a firstin- 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 error 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 –350 meaning Queue Overflow.

Refer to “Troubleshooting” on page 97 for a list of the error messages.

:SYSTem:PRESet

Syntax

Form Event

Description This command is equivalent to

Parameter –

*RST value –

:SYST:PRES

to the if you want the display to remain switched off during program execution.

:DISPlay[:WINDow][:STATe]

*RST

, except that there is no change

. Use this command instead of

*RST

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SCPI Commands Reference SYSTem Commands

:SYSTem:SET

Syntax

Form Set & Query

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

Parameter Block data

:SYST:SET[?]

instrument’s complete setup. The setup 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]

ASCII, and cannot be edited.

In set form, the block data must be a complete instrument setup that was produced with the query form of this command.

. The data is in a binary format, not

:SYSTem:VERSion?

Syntax

Form Query

:SYST:VERS?

Description This command reads the SCPI revision to which the instrument

complies.

*RST value –

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SYSTem Commands SCPI Commands Reference

:SYSTem:COMMunicate:LAN[:SELF]:DHCP

Syntax

Form Set

Description Enables/disables the DHCP.

Parameter 1|0|ON|OFF

*RST value –

:SYST:COMM:LAN[:SELF]:DHCP

•DHCP enabled

If DHCP is enabled, the instrument will request its own LAN settings from the network. You only need to specify the LAN name with page 83.

•DHCP disabled

If DHCP is disabled, you have to set the instrument IP address, subnet mask, gateway and host address with:

– “:SYSTem:COMMunicate:LAN[:SELF] :ADDRess” on page 84

– “:SYSTem:COMMunicate:LAN[:SELF] :SMASk” on page 84

– “:SYSTem:COMMunicate:LAN[:SELF] :DGATeway” on page 85

“:SYSTEM:COMMunicate:LAN[:SELF]:NAME” on

Example

Disable DHCP:

:SYST:COMM:LAN[:SELF]:DHCP OFF

:SYSTEM:COMMunicate:LAN[:SELF]:NAME

Syntax

Form Set

Description Sets the LAN name. This command is only necessary for DHCP.

Parameter alphanumeric

*RST value –

Example

:SYST:COMM:LAN[:SELF]:NAME <LAN name>

:SYST:COMM:LAN:NAME PP81134A01

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 83

SCPI Commands Reference SYSTem Commands

:SYSTem:COMMunicate:LAN[:SELF] :ADDRess

Syntax

Form Set & Query

Description Sets the instrument's IP address.

NOTE This parameter must only be set if DHCP is not available. See

Parameter String <no>.<no>.<no>.<no> in quotes, where <no> is in the range 1

*RST value –

Example

:SYST:COMM:LAN[:SELF]:ADDR[?]

“:SYSTem:COMMunicate:LAN[:SELF]:DHCP” on page 83.

… 255.

:SYST:COMM:LAN:ADDR "150.215.17.9"

:SYSTem:COMMunicate:LAN[:SELF] :SMASk

Syntax

:SYST:COMM:LAN[:SELF]:SMAS[?]

Form Set & Query

Description Sets the instrument’s subnet mask.

NOTE This parameter must only be set if DHCP is not available. See

“:SYSTem:COMMunicate:LAN[:SELF]:DHCP” on page 83.

Parameter String <no>.<no>.<no>.<no> in quotes, where <no> is in the range 0

… 255.

*RST value –

Example

:SYST:COMM:LAN:SMAS "255.255.240.000"

84 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

SYSTem Commands SCPI Commands Reference

:SYSTem:COMMunicate:LAN[:SELF] :DGATeway

Syntax

Form Set & Query

Description Sets the instrument’s gateway.

NOTE This parameter must only be set if DHCP is not available. See

Parameter String <no>.<no>.<no>.<no> in quotes, where <no> is in the range 1

*RST value –

Example

:SYST:COMM:LAN[:SELF]:DGAT[?]

“:SYSTem:COMMunicate:LAN[:SELF]:DHCP” on page 83.

… 255.

:SYST:COMM:LAN:DGAT "150.215.001.001"

:SYSTem:COMMunicate:GPIB[:SELF]:ADDR

Syntax

Form Set & Query

:SYST:COMM:GPIB[:SELF]:ADDR[?]

Description Sets/reads the instrument’s GPIB bus number.

Parameter Numeric

*RST value 13

Example

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 85

:SYST:COMM:GPIB[:SELF]:ADDR 15

SCPI Commands Reference TRIGger Commands

:TRIG:SOUR[?]

:TRIG::TERM[?]

:TRIG::TERMSTATe[?]

TRIGger Commands

The following table shows the Agilent 81133A/81134A Pulse Generator TRIGger Commands:

Command Parameter Description

:TRIGger

:SOURce[?] IMMediate|EXTernal

| REFerence| IDIRect| EDIRect

:TERM[?] Numeric [uV|mV|V]

:TERMSTATe[?] ON|OFF

Sets/reads timebase mode internal, external, external 10 MHz reference, internal direct and external direct

Sets/reads termination voltage

Sets/reads termination state.

Defines whether the external clock input (Clock In) connector is AC or DC terminated

86 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

TRIGger Commands SCPI Commands Reference

:TRIGger:SOURce

Syntax

Form Set & Query

Description This command is used to switch the timebase mode between

Parameter IMMediate|EXTernal|REFerence|IDIRect|EDIRect

:TRIG:SOUR[?]

Internal (

With (or period) is controlled with the

[:SOURce][:PULSe]:PERiod

With controlled by the external signal applied to the external clock input connector (Clock In).

•IMMediate

The clock is derived from the internal oscillator.

•EXTernal

Enables the external clock input (Clock In) to accept an external clock signal that forms the time base. The frequency is measured once by selecting the Measure function from the user interface or as a remote SCPI command (

This value is then used to calculate frequency- dependent values, like the pulse width or the phase (available at the Channel page).

IMMediate

:TRIGger:SOURce IMMediate

:TRIGger:SOURce EXTernal

) and External (

) command.

EXTernal

(internal timebase) the frequency

[:SOURce]:FREQuency

, the frequency (or period) is

:MEASure:FREQuency?

(or

•REFerence

Enables the external clock input (Clock In) to apply a 10 MHz reference clock. This clock is used as a reference for all timing parameters.

• IDIRect|EDIRect

The direct modes allow changes of frequency without dropouts in the range of 1:2. They are used for applications (precise clock source), where dropouts would make a measurement impossible, for example, PLL frequency sweep and micro processor clock sweep.

–IDIRect

Allows you to vary the clock derived from the internal oscillator in the range of one octave.

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SCPI Commands Reference TRIGger Commands

–EDIRect

Allows you to vary the frequency of the external clock signal in the range of one octave.

Range switching occurs at the following frequency values:

• 1680 MHz

• 840 MHz

• 420 MHz

• 210 MHz

• 105 MHz

• 51.5 MHz

• 25.75 MHz

These values are based on 1680 MHz, subject to the frequency divider.

*RST value IMMediate

Example Select the external timebase mode.

:TRIG:SOUR EXT

:TRIGger:TERM

Syntax

Form Set & Query

Description Sets/reads the termination voltage for the external clock input. See

NOTE The termination voltage can only be specified if the Clock In

Parameter Numeric [uV|mV|V]

*RST value 0 mV

:TRIG:TERM[?]

“:TRIGger:SOURce” on page 87.

connector is DC terminated.

Specified limits –2.0 V … 3.0 V

Example Set the termination voltage of the signal applied to the external

clock input to 1V.

:TRIG:TERM 1V

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TRIGger Commands SCPI Commands Reference

:TRIGger:TERM:STATE[?]

Syntax

Form Set & Query

Description Defines whether the external clock input connector (Clock In) is

Parameter ON|OFF where ON = DC and OFF = AC terminated.

*RST value OFF

Example Set the coupling of the external clock input connector to DC.

:TRIG:TERM:STATE[?]

AC or DC terminated.

:TRIG:TERM:STATE ON

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 89

SCPI Commands Reference ARM Commands

:ARM[:SEQ][:LAY]:LEV

:ARM[:SEQ][:LAY]:TERM[?]

:ARM[:SEQ][:LAY]:SLOP

:ARM[:SEQ][:LAY][:START]

:ARM[:SEQ][:LAY]:SOURce

:ARM[:SEQ][:LAY]:STOP

ARM Commands

The following table shows the Agilent 81133A/81134A Pulse Generator ARM Commands:

Command Parameter Description

:ARM

[:SEQuence]

[:LAYer]

:LEVel Numeric[mV|V]

:SLOPe POSitive|NEGative

:SOURce IMMediate|

MANual|EXTernal

:TERM[?] Numeric [mV|V]

[:STARt]

:STOP

The following figure shows how the ARM commands are implemented in the 81133A/81134A user interface.

External start input

Sets the trigger threshold

Trigger set to leading/trailing edge of external signal

Sets the start input to disabled/manual (by key)/external started

Sets/reads termination voltage

Starts signal output

Stops signal output

90 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

ARM Commands SCPI Commands Reference

:ARM[:SEQuence][:LAYer]:LEVel

Syntax

Form Set & Query

Description Specifies the threshold voltage for the external start signal.

NOTE The threshold can only be specified if the external start mode is

Parameter Numeric [mV|V]

Specified limits –2 V … 3.0 V

Absolute limits –2.0 V … 3.0 V

*RST value 100 mV

Example Sets the threshold voltage to 2.0 V.

:ARM[:SEQ][:LAY]:LEV

selected (

:ARM:LEV 2.0 V

“:ARM:SOURce EXT”)

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SCPI Commands Reference ARM Commands

:ARM[:SEQuence][:LAYer]:SLOPe

Syntax

Form Set & Query

Description Specifies whether the signal is generated at the rising or falling

NOTE The threshold can only be specified if the external start mode is

Parameter POSitive|NEGative

*RST value POS

Example Specifies that the signal is generated at the falling edge.

:ARM[:SEQ][:LAY]:SLOP

edge of the external start signal.

selected (

•POSitive

The signal is generated at the rising edge.

•NEGative

The signal is generated at the falling edge.

:ARM:SLOP NEG

“:ARM:SOURce EXT”)

92 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

ARM Commands SCPI Commands Reference

:ARM[:SEQuence][:LAYer]:SOURce

Syntax

Form Set & Query

Description Specifies when the generated signal is output immediately, by

Parameter IMMediate|MANual|EXTernal

:ARM[:SEQ][:LAY]:SOUR

manual start or depending on an external signal at the Start In connector.

The instrument provides the following start modes:

•IMMediate

The generated signal is always available at the outputs (assumed that the outputs are enabled).

•MANual

The generated signal is output after Start at the instrument panel is pressed.

•EXTernal

Select this start mode to send the generated signal to the outputs depending on the external signal applied at the Start In connector.

You can define the following parameters that the external signal must meet:

– Threshold (voltage)

Set the threshold with “:ARM[:SEQuence][:LAYer]:LEVel” on page 91.

– Termination voltage

Set the termination voltage with “:ARM[:SEQuence][:LAYer]:TERM” on page 94.

– Edge (rising/falling)

Set the edge with “:ARM[:SEQuence][:LAYer]:SLOPe” on page 92.

*RST value

Example Set the start mode to external.

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 93

IMMediate

:ARM:SOUR EXT

SCPI Commands Reference ARM Commands

:ARM[:SEQuence][:LAYer]:TERM

Syntax

Form Set & Query

Description Sets/reads the termination voltage for the start input signal.

Parameter Numeric [mV|V]

Specified limits –2.0 V … 3.0 V

*RST value 0 mV

Example Set the termination voltage to 1 V.

:ARM[:SEQ][:LAY]:TERM[?]

:ARM:TERM 1V

:ARM[:SEQuence][:LAYer][:STARt]

Syntax

Form Event

Description Puts the instrument in armed mode. This means, that the

:ARM[:SEQ][:LAY][STAR]

instrument waits for the selected edge to appear.

NOTE The instrument can only be put in armed mode if the external

start mode is selected (

Parameter –

*RST value –

Example Set the armed mode:

:ARM

“:ARM:SOURce EXT”)

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ARM Commands SCPI Commands Reference

:ARM[:SEQuence][:LAYer]:STOP

Syntax

Form Event

Description Deactivates the armed mode for the instrument.

Parameter –

*RST value –

Example Deactivate the armed mode:

:ARM[:SEQ][:LAY]:STOP

:ARM:STOP

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 95

SCPI Commands Reference ARM Commands

96 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

Troubleshooting

This chapter provides basic troubleshooting tips that you can use if the instrument is not performing as expected.

Error Generated

The instrument generates error messages as follows:

-221:Settings conflict:String describing the error

The string describing the error could be one of the following:

• "divider of channel [1|2] leads to a frequency below minimum frequency"

This occurs if the frequency below one of the channels is set below the minimum (15 MHz). This could happen if the frequency is decreased or if the frequency divider is increased.

• "pulsewidth of channel [1|2] is too small"

May happen:

– If the frequency is decreased and the channel is in duty

mode, or

– if the signal mode is switched from NRZ to RZ or R1, or

– if clock mode is switched from internal/external direct to a

none direct mode

• "pulse width of channel [1|2] is too large"

May happen:

– If the frequency is increased and the channel is in duty mode,

– if the signal mode is switched from NRZ to RZ or R1, or

– if clock mode is switched from internal/external direct to a

none direct mode.

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 97

Troubleshooting

• "delay of channel [1|2] below minimum"

May happen:

– If the frequency is decreased and the channel is in phase

mode, or

– if the square mode is switched from square to another mode,

– if clock mode is switched from internal/external direct to a

none direct mode.

• "delay of channel [1|2] above maximum"

May happen:

– If the frequency is increased and the channel is in phase

mode, or

– if the channel mode is switched from SQUARE to another

mode, or

– if clock mode is switched from internal/external direct to a

none direct mode.

• "amplitude of trigger is too small"

May happen:

– If the trigger high level is decreased, or

– if the low level is increased.

• "amplitude of channel [1|2] is too small"

May happen:

– If the channel high level is decreased, or

– if the low level is increased.

• "amplitude of trigger is too large"

May happen:

– If the trigger high level is increased, or

– if the low level is decreased.

• "amplitude of channel [1|2] is too large"

May happen

– If the channel high level is increased, or

– if the low level is decreased.

• "low level of trigger is below minimum"

May happen:

98 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

– If the trigger amplitude is increased, or

– if the offset is decreased.

• "low level of channel [1|2] is below minimum"

May happen:

– If the channel amplitude is increased, or

– if the offset is decreased.

• "high level of trigger exceeds maximum"

May happen:

– If the trigger amplitude is increased, or

– if the offset is increased.

• "high level of channel [1|2] exceeds maximum"

May happen:

– If the channel amplitude is increased, or

Troubleshooting

– if the offset is increased.

• "high level of trigger is lower than low level"

May happen:

– If the trigger amplitude is set to a negative value, or

– if high level and low level are set in parallel by list of

semicolon- separated SCPI commands.

• "high level of channel [1|2] is lower than low level"

May happen:

– If the channel amplitude is set to a negative value, or

– if high level and low levels are set in parallel by list of

semicolon- separated SCPI commands.

Instrument not Operable via LAN

If the instrument cannot be programmed via LAN, make sure that you have installed the latest Agilent I/O library on your computer.

Visit the Agilent web site for the newest version.

Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007 99

Troubleshooting

100 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007

Agilent 81133A Programming Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

About This Programming Guide

Contents

Introduction

Connecting to the Pulse/Pattern Generator for Remote Programming

Connecting to the Instrument via GPIB

Example for Connecting via GPIB

Connecting to the Instrument via LAN

Configuring the Agilent IO Libraries

Example for Connecting via LAN

Connecting to the Instrument via USB

SCPI Commands Reference

Common Commands

Standard Settings

DIAGnostic Commands

:CAL:TIM

:DIAG:CHANnel[1|2]:PPERformance

DIGital Commands

:DIGital[1|2][:STIMulus]:PATTern[:DATa]

:DIGital[1|2][:STIMulus]:PATTern:LDATa

:DIGital[1|2][:STIMulus]:PATTern:LENGth

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

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

:DIGital[1|2][:STIMulus]:SIGNal: CROSsover:[VALue]

:DIGital[1|2][:STIMulus]:SIGNal: CROSsover:[STATe]

DISPlay Commands

:DISPlay[:WINDow][:STATe]

MEASure Commands

:MEASure:FREQuency?

:MEASure:PERiod?

OUTPut Commands

:OUTPut[0|1|2]:DIVider

:OUTPut0:SOURce

:OUTPut[0|1|2][:STATe]

:OUTPut[1|2]:NEG

:OUTPut[1|2]:POS

:OUTPut:CENTral

SOURce Commands

[:SOURce]:FUNCtion[:SHAPe]

[:SOURce]:FUNCtion:MODe[1|2]

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

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

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

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

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

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

[:SOURce][:PULSe]:PERiod

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

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

[:SOURce]:PM[1|2]

[:SOURce]:PM[1|2]:SENSitivity

[:SOURce]:VOLTage[0|1|2][:LEVel] [:IMMediate][:AMPLitude]

[:SOURce]:VOLTage[0|1|2][:LEVel] [:IMMediate]:OFFSet

[:SOURce]:VOLTage[0|1|2][:LEVel] [:IMMediate]:HIGH

[:SOURce]:VOLTage[0|1|2][:LEVel] [:IMMediate]:LOW

[:SOURce]:VOLTage[0|1|2][:LEVel] [:IMMediate]:TERM

[:SOURce]:VOLTage[1|2]:LIMit [:AMPLitude]?

[:SOURce]:VOLTage[1|2]:LIMit:OFFSet?

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

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

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

Status Handling Commands

:STATus:OPERation

:STATus:PRESet

:STATus:QUEStionable

:STATus:QUEStionable:VOLTage

:STATus:QUEStionable:FREQuency

:STATus:QUEStionable:MONotony

SYSTem Commands

:SYSTem:ERRor?

:SYSTem:PRESet

:SYSTem:SET

:SYSTem:VERSion?

:SYSTem:COMMunicate:LAN[:SELF]:DHCP

:SYSTEM:COMMunicate:LAN[:SELF]:NAME

:SYSTem:COMMunicate:LAN[:SELF] :ADDRess

:SYSTem:COMMunicate:LAN[:SELF] :SMASk