GW Instek AFG-125, AFG-225, AFG-125P, AFG-225P User guide

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Arbitrary Function Generator

AFG-125/AFG-225/AFG-125P/AFG-225P

USER MANUAL

GW INSTEK PART NO. 82AF-12500E01

ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information, which is protected by

photocopied, reproduced or translated to another language without

prior written consent of Good Will Corporation.

The information in this manual was correct at the time of printing.

However, Good Will continues to improve its products and therefore

reserves the right to change the specifications, equipment, and

maintenance procedures at any time without notice.

Good Will Instrument Co., Ltd.

No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

Table of Contents

SAFETY INSTRUCTIONS.................................. 7

Safety Symbols .......................................................................7

Safety Guidelines.................................................................... 8

GETTING STARTED........................................ 11

Main Features ...................................................................11

Panel Overview..................................................................13

Front Panel ...........................................................................13

Rear Panel............................................................................. 14

System Requirements.........................................................15

Software Installation ............................................................15

Setup the Signal Generator..................................................16

Default Settings ................................................................17

REMOTE INTERFACE ..................................... 19

Establishing a Remote Connection ....................................19

Configure USB interface.......................................................19

Remote control terminal connection...................................20

Command Syntax .................................................................21

System Command .............................................................26

SYSTem:ERRor? ...................................................................26

*IDN? ...................................................................................26

*RST .....................................................................................27

SYSTem:VERSion?................................................................27

*OPC ....................................................................................27

*OPC?................................................................................... 28

*WAI ..................................................................................... 28

Status Register Commands ...............................................29

*CLS......................................................................................29

*ESE...................................................................................... 29

*ESR?....................................................................................30

*STB?.................................................................................... 30

*SRE .....................................................................................31

Apply Commands ..............................................................32

SOURce[1|2]:APPLy:SINusoid..............................................34

SOURce[1|2]:APPLy:SQUare ................................................ 34

SOURce[1|2]:APPLy:RAMP...................................................35

AFG-200 SERIES USER MANUAL

SOURce[1|2]:APPLy:PULSe.................................................. 35

SOURce[1|2]:APPLy:NOISe.................................................. 36

SOURce[1|2]:APPLy:USER ...................................................36

SOURce[1|2]:APPLy?............................................................ 37

Output Commands............................................................38

SOURce[1|2]:FUNCtion .......................................................38

SOURce[1|2]:FREQuency ..................................................... 39

SOURce[1|2]:AMPlitude....................................................... 41

SOURce[1|2]:DCOffset......................................................... 42

SOURce[1|2]:SQUare:DCYCle.............................................. 43

SOURce[1|2]:RAMP:SYMMetry............................................ 44

OUTPut[1|2] .........................................................................45

OUTPut[1|2]:LOAD .............................................................. 45

SOURce[1|2]:VOLTage:UNIT............................................... 46

Pulse Configuration Commands ........................................48

SOURce[1|2]:PULSe:PERiod ................................................48

SOURce[1|2]:PULSe:WIDTh................................................. 49

Amplitude Modulation (AM) Commands ...........................50

AM Overview........................................................................ 50

SOURce[1|2]:AM:STATe....................................................... 51

SOURce[1|2]:AM:INTernal:FUNCtion ................................. 51

SOURce[1|2]:AM:INTernal:FREQuency............................... 52

SOURce[1|2]:AM:DEPTh...................................................... 52

Frequency Modulation (FM) Commands............................54

FM Overview........................................................................ 54

SOURce[1|2]:FM:STATe....................................................... 55

SOURce[1|2]:FM:INTernal:FUNCtion .................................55

SOURce[1|2]:FM:INTernal:FREQuency............................... 56

SOURce[1|2]:FM:DEViation................................................. 56

Frequency-Shift Keying (FSK) Commands ..........................59

FSK Overview ....................................................................... 59

SOURce[1|2]:FSKey:STATe................................................... 59

SOURce[1|2]:FSKey:FREQuency .......................................... 60

SOURce[1|2]:FSKey:INTernal:RATE..................................... 61

Phase Modulation (PM)Commands ...................................62

PM Overview........................................................................ 62

SOURce[1|2]:PM:STATe....................................................... 63

SOURce[1|2]:PM:INTernal:FUNction.................................. 63

SOURce[1|2]:PM:INTernal:FREQuency............................... 64

SOURce[1|2]:PM:DEViation................................................. 64

SUM Modulation (SUM) Commands ..............................66

SUM Overview .....................................................................66

SOURce[1|2]:SUM:STATe .................................................... 67

Table of Contents

SOURce[1|2]:SUM:INTernal:FUNction................................67

SOURce[1|2]:SUM:INTernal:FREQuency.............................68

SOURce[1|2]:SUM:AMPL.....................................................68

Frequency Sweep Commands ............................................70

Sweep Overview ...................................................................70

SOURce[1|2]:SWEep:STATe ................................................. 71

SOURce[1|2]:FREQuency:STARt ..........................................72

SOURce[1|2]:FREQuency:STOP...........................................72

SOURce[1|2]:FREQuency:CENTer........................................73

SOURce[1|2]:FREQuency:SPAN........................................... 74

SOURce[1|2]:SWEep:SPACing..............................................75

SOURce[1|2]:SWEep:TIME................................................... 75

SOURce[1|2]:SWEep:SOURce.............................................. 76

SOURce[1|2]:MARKer:FREQuency....................................... 77

SOURce[1|2]:MARKer........................................................... 77

Burst Mode Commands.....................................................79

Burst Mode Overview...........................................................79

SOURce[1|2]:BURSt:STATe..................................................81

SOURce[1|2]:BURSt:MODE ................................................. 81

SOURce[1|2]:BURSt:NCYCles..............................................82

SOURce[1|2]:BURSt:INTernal:PERiod .................................83

SOURce[1|2]:BURSt:PHASe................................................. 83

SOURce[1|2]:BURSt:TRIGger:SOURce ................................ 84

SOURce[1|2]:BURSt:TRIGger:DELay....................................85

SOURce[1|2]:BURSt:TRIGger:SLOPe................................... 86

SOURce[1|2]:BURSt:GATE:POLarity .................................... 86

SOURce[1|2]:BURSt:OUTPut:TRIGger:SLOPe ....................87

SOURce[1|2]:BURSt:OUTPut[1|2]:TRIGger..........................88

Arbitrary Waveform Commands .........................................89

Arbitrary Waveform Overview..............................................89

SOURce[1|2]:FUNCtion USER .............................................90

SOURce[1|2]:DATA:DAC ...................................................... 90

SOURce[1|2]:ARB:EDIT:COPY .............................................91

SOURce[1|2]:ARB:EDIT:DELete ...........................................92

SOURce[1|2]:ARB:EDIT:DELete:ALL .................................... 92

SOURce[1|2]:ARB:EDIT:POINt.............................................92

SOURce[1|2]:ARB:EDIT:LINE............................................... 93

SOURce[1|2]:ARB:EDIT:PROTect.........................................93

SOURce[1|2]:ARB:EDIT:PROTect:ALL .................................94

SOURce[1|2]:ARB:EDIT:UNProtect......................................94

SOURce[1|2]:ARB:OUTPut...................................................94

Phase ................................................................................95

SOURce[1|2]:PHASe............................................................. 95

SOURce[1|2]:PHASe:SYNChronize......................................95

AFG-200 SERIES USER MANUAL

Couple...............................................................................96

SOURce[1|2]:FREQuency:COUPle:MODE .......................... 96

SOURce[1|2]:FREQuency:COUPle:OFFSet.......................... 96

SOURce[1|2]:FREQuency:COUPle:RATio ............................ 97

SOURce[1|2]:AMPlitude:COUPle:STATe ............................. 97

SOURce[1|2]:TRACk............................................................. 97

Sync ..................................................................................99

OUTPut:SYNC...................................................................... 99

OUTPut[1|2]:SYNC:MODE .................................................. 99

OUTPut[1|2]:SYNC:POLarity.............................................. 100

OUTPut:SYNC:SOURce..................................................... 101

Power Commands............................................................102

VOUTput............................................................................ 102

VSET ................................................................................... 102

Save and Recall Commands .............................................104

*SAV................................................................................... 104

*RCL ................................................................................... 104

MEMory:STATe:DELete .....................................................104

MEMory:STATe:DELete ALL .............................................. 105

Error Messages................................................................106

Command Error Codes...................................................... 106

Execution Errors................................................................. 108

Query Errors....................................................................... 115

Arbitrary Waveform Errors................................................. 115

SCPI Status Register........................................................117

AFG-200 SERIES Status System ........................................ 118

Questionable Status Register ............................................ 119

Standard Event Status Registers ....................................... 119

The Status Byte Register .................................................... 121

Output Queue.................................................................... 122

Error Queue........................................................................ 122

APPDENIX.................................................... 123

AFG-200 Specifications....................................................123

TABLE OF CONTENTS

SAFETY INSTRUCTIONS

This chapter contains important safety instructions that should be followed when operating and storing the function generator. Read the following before any operation to ensure your safety and to keep the function generator in the best condition.

Safety Symbols

These safety symbols may appear in this manual or on the instrument.

WARNING

CAUTION

Warning: Identifies conditions or practices that could result in injury or loss of life.

Caution: Identifies conditions or practices that could result in damage to the function generator or to other objects or property.

DANGER High Voltage

Attention: Refer to the Manual

Protective Conductor Terminal

Earth (Ground) Terminal

DANGER Hot Surface

AFG-200 SERIES USER MANUAL

Double Insulated

Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased.

Safety Guidelines

General Guideline

CAUTION

• Do not place heavy objects on the instrument.

• Do not place flammable objects on the

• Avoid severe impact or rough handling that

• Avoid discharges of static electricity on or near

• Use only mating connectors, not bare wires, for

• The instrument should only be disassembled by

instrument.

may damage the function generator.

the function generator.

the terminals.

a qualified technician.

Power Supply

WARNING

Fuse

WARNING

• DC Input voltage: 5V/2A.

• Do not exceed an input voltage of 5V±5%.

• Fuse type: F3.15A/125V.

• Only qualified technicians should replace the

fuse.

• To ensure fire protection, replace the fuse only

with the specified type and rating.

• Disconnect the power and all test leads before

replacing the fuse.

• Make sure the cause of fuse blowout is fixed

before replacing the fuse.

AFG-200 SERIES USER MANUAL

Cleaning the function generator

Operation Environment

Storage environment

• Disconnect the power cord before cleaning the

function generator.

• Use a soft cloth dampened in a solution of mild

detergent and water. Do not spray any liquid into the function generator.

• Do not use chemicals containing harsh products

such as benzene, toluene, xylene, and acetone.

• Location: Indoor, no direct sunlight, dust free,

almost non-conductive pollution (Note below) and avoid strong magnetic fields.

• Relative Humidity: < 80%

• Altitude: < 2000m

• Temperature: 0°C to 40°C

(Pollution Degree) EN 61010-1:2010 specifies pollution degrees and their requirements as follows. The function generator falls under degree 2.

Pollution refers to “addition of foreign matter, solid, liquid, or gaseous (ionized gases), that may produce a reduction of dielectric strength or surface resistivity”.

• Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The pollution has no influence.

• Pollution degree 2: Normally only non-conductive pollution occurs. Occasionally, however, a temporary conductivity caused by condensation must be expected.

• Pollution degree 3: Conductive pollution occurs, or dry, non-conductive pollution occurs which becomes conductive due to condensation which is expected. In such conditions, equipment is normally protected against exposure to direct sunlight, precipitation, and full wind pressure, but neither temperature nor humidity is controlled.

• Location: Indoor

• Relative Humidity: < 70%

• Temperature: -10°C ~ 70°C

AFG-200 SERIES USER MANUAL

Disposal

Do not dispose this instrument as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Please make sure discarded electrical waste is properly recycled to reduce environmental impact.

AFG-200 SERIES USER MANUAL

GETTING STARTED

The Getting started chapter introduces the function generator’s main features, appearance and introduces a quick instructional summary of some of the basic functions. For comprehensive operation instructions, please see the operation chapter.

Main Features

Model AFG-125 AFG-125P AFG-225 AFG-225P

Frequency Range

Output Channels 1 1 2 2

Power Output None Yes None Yes

Performance

Features

• DDS signal generator

• 1μHz resolution over the full range

• 20ppm frequency stability

• Arbitrary Waveform Capability

120 MSa/s sample rate 60 MSa/s repetition rate 4 k-point waveform length 4k waveform memory, 10 groups User-defined output DWR (Direct waveform reconstruction) capability PC waveform editing

• Sine, Square, Ramp, Pulse & Noise as standard

waveforms

• Internal LIN/LOG sweeps with marker output

• AM, FM, FSK, SUM modulation

• Triggered burst function

• Save/recall 10 setup memories

• Output overload protection

1uHz-25MHz

AFG-200 SERIES USER MANUAL

Interface

Power Supply (AFG-125P/ 225P only)

• USB interface as standard

• AWES (arbitrary waveform editing software) PC

software

• 2.5V/3.3V/5V supply output

• 0.6A current output

AFG-200 SERIES USER MANUAL

YNC

Panel Overview

Front Panel

Power Supply Status LEDs

Negative Output

GND

Positive Output

SYNC

CH1

These LEDs indicate the immediate status of the power supply function on the AFG-125P/225P:

2.5V

3.5V

OVER LOAD

2.5V output is on

3.5V output is on

5V output is on

Overload condition

Negative output port

Ground port

Positive output port

Sync output. A TTL signal is output as the sweep marker or sync output signal.

CH1 (Signal 1) output.

50Ω

AFG-200 SERIES USER MANUAL

CH2

Rear Panel

Ven t

USB Device Port

Input Power

50Ω

Vent USB Device Port Input Power

Cooling vent.

CH1 (Signal 2) output (AFG-225/AFG-225P only).

DC 5V

INPUT

2A MAX.

Interfaces with the GDS-2000A and can also provide power.

Input power source: DC 5V; 2A max.

AFG-200 SERIES USER MANUAL

System Requirements

Operating System

Microsoft Windows XP

Microsoft Windows 7

Microsoft Windows Vista

CPU

Memory

Hard Disk Space

Supports USB2.0(compatible with USB1.1)

300MHz

256MB

100MB

The USB 2.0 Universal Serial Bus specification is supported with transfer rates from USB1.1 to USB2.0.

Software Installation

Close all the programs that are currently running. Insert the included installation CD into your CD-ROM drive, and execute the following steps:

1. Execute the installer on the CD. Install the software step by step by following the prompts.

2. Connect hardware after the installation is completed. The computer will automatically search for the new hardware and install its driver. You can start to use the signal generator after the driver is installed.

AFG-200 SERIES USER MANUAL

Setup the Signal Generator

PC Communication

1. Plug the power adapter into the power input port on the rear panel.

2. Connect the type B end of the accessory USB cable to the USB B port on the signal generator, and then connect the type A end of the USB cable to the USB A port on the computer.

3. Turn on the PC and control the signal generator through the PC software.

The signal generator is ready for use.

AFG-200 SERIES USER MANUAL

Default Settings

The command *RST is used to restore the default panel settings.

Output Settings

Modulation

(AM/FM/FSK/

PM/SUM)

Function Sine Wave

Frequency 1kHz

Amplitude 1.000 Vpp

Offset 0.00V dc

Output units Vpp

Output terminal 50Ω

Power OFF

Sync OFF

Carrier wave 1kHz sine wave

Modulation wave 100Hz sine wave

AM depth 100%

FM deviation 100Hz

*RST

Sweep

FSK hop frequency 100Hz

FSK frequency 10Hz

PM phase deviation 180˚

SUM amplitude 50%

Modem status Off

Start/Stop frequency 100Hz/1kHz

Sweep time 1s

Sweep type Linear

AFG-200 SERIES USER MANUAL

Burst

System Settings

Sweep status Off

Burst frequency 1kHz

Ncycle 1

Burst period 10ms

Burst starting phase 0˚

Burst status Off

Power off signal On

Error queue Cleared

Memory settings No change

Output Off

AFG-200 SERIES USER MANUAL

REMOTE INTERFACE

Establishing a Remote Connection ....................................19

Configure USB interface.......................................................19

Remote control terminal connection...................................20

Command Syntax .................................................................21

Establishing a Remote Connection

The AFG-200 supports USB remote connections

Configure USB interface

USB configuration

PC side connector

AFG-200 series side connector

Type B, slave

Speed

Panel Operation

1. Connect the USB cable to the rear panel USB B (slave) port.

2. When the PC asks for the USB driver, select XXXXXXX.inf included in the software package or download the driver from the GW website,

www.gwinstek.com

1.1/2.0 (full speed)

AFG-200 SERIES USER MANUAL

Remote control terminal connection

Te rm i na l application

Functionality check

PC Software

Invoke the terminal application such as MTTTY (Multi-Threaded TTY). For USB, set the COM port, baud rate, stop bit, data bit, and parity accordingly.

To check the COM port No, see the Device Manager in the PC. For WinXP, Control panel → System → Hardware tab.

Run this query command via the terminal.

*idn?

This should return the Manufacturer, Model number, Serial number, and Firmware version in the following format.

GW INSTEK, AFG-X25X, SN:XXXXXXXX,Vm.mm

Note: ^j or ^m can be used as the terminal character when using a terminal program.

The proprietary PC software, downloadable from GWInstek website, can be used for remote control.

AFG-200 SERIES USER MANUAL

Command Syntax

Compatible standard

• IEEE488.2, 1992 (fully compatible)

• SCPI, 1994 (partially compatible)

Command Tree

The SCPI standard is an ASCII based standard that defines the command syntax and structure for programmable instruments.

Commands are based on a hierarchical tree structure. Each command keyword is a node on the command tree with the first keyword as the root node. Each sub node is separated with a colon.

Shown below is a section of the SOURce[1|2] root node and the :PM and :PULSe sub nodes.

Command types

Commands can be separated in to three distinc types, simple commands, compound commands and queries.

Simple

A single command with/without a parameter

Example *OPC

Compound

Two or more commands separated by a colon (:) with/without a parameter

Example SOURce1:PULSe:WIDTh

AFG-200 SERIES USER MANUAL

Query

A query is a simple or compound command followed by a question mark (?). A parameter (data) is returned. The maximum or minimum value for a parameter can also be queried where applicable.

Example

SOURce1:FREQuency? SOURce1:FREQuency? MIN

Command forms

Commands and queries have two different forms, long and short. The command syntax is written with the short form of the command in capitals and the remainder (long form) in lower case.

The commands can be written in capitals or lower-case, just so long as the short or long forms are complete. An incomplete command will not be recognized.

Below are examples of correctly written commands:

LONG SOURce1:DCOffset

SOURCE1:DCOFFSET

source1:dcoffset

SHORT

SOUR1:DCO

sour1:dco

AFG-200 SERIES USER MANUAL

Command Format

1: command header

2: single space

3: parameter

4: message terminator

Square Brackets []

Commands that contain squares brackets indicate that the contents are optional. The function of the command is the same with or without the square bracketed items. Brackets are not sent with the command.

For example, the frequency query below can use any of

the following 3 forms:

SOURce1:FREQuency? [MINimum|MAXimum]

SOURce1:FREQuency? MAXimum

SOURce1:FREQuency? MINimum

SOURce1:FREQuency?

Braces {}

Commands that contain braces indicate one item within the braces must be chosen. Braces are not sent with the command.

Angled Brackets <>

Angle brackets are used to indicate that a value must be specified for the parameter. See the parameter description below for details. Angled brackets are not sent with the command.

Bars |

Bars are used to separate multiple parameter choices in the command format.

Parameters Type Description Example

<NR1>

<NR2>

<NR3>

<NRf>

Boolean logic 0, 1/ON,OFF

integers 0, 1, 2, 3

decimal numbers

0.1, 3.14, 8.5

floating point 4.5e-1, 8.25e+1

any of NR1, 2, 3 1, 1.5, 4.5e-1

AFG-200 SERIES USER MANUAL

<NRf+>

NRf type with a suffix including MINimum, MAXimum or DEFault parameters.

<aard>

Arbitrary ASCII characters.

Discrete ASCII character parameters

NRf+ type including frequency unit suffixes.

NRf+ type including voltage peak to peak.

NRf+ type including volt unit suffixes.

1, 1.5, 4.5e-1

MAX, MIN,

IMM, MAN

1 KHZ, 1.0 HZ, ΜHZ

VPP

NRf+ type including time unit suffixes.

NRf type N/A

Message terminators

EOI

Note

LF CR

line feed code (new line) and carriage return.

line feed code (new line)

IEEE-488 EOI (End-Or-Identify)

^j or ^m should be used when using a terminal program.

NS, S MS US

AFG-200 SERIES USER MANUAL

Command Separators

Semicolon (;)

Colon +

Comma (,)

Space

Colon (:)

Semicolon (:;)

A space is used to separate a parameter from a keyword/command header.

A colon is used to separate keywords on each node.

A semi colon is used to separate subcommands that have the same node level.

For example: SOURce[1|2]:DCOffset?

SOURce[1|2]:OUTPut? ÆSOURce1:DCOffset?;OUTPut?

A colon and semicolon can be used to combine commands from different node levels.

For example: SOURce1:PM:SOURce?

SOURce:PULSe:WIDTh? ÆSOURce1:PM:SOURce?:;SOURce: PULSe:WIDTh?

When a command uses multiple parameters, a comma is used to separate the parameters.

For example: SOURce:APPLy:SQUare 10KHZ, 2.0

VPP, -1V

AFG-200 SERIES USER MANUAL

System Command

SYSTem:ERRor?

Description

Query Syntax SYSTem:ERRor?

Return parameter <string> Returns an error string,

Example SYSTem:ERRor?

Reads an error from the error queue. See page 122 for details regarding the error queue.

-138 Suffix not allowed

Returns an error string.

*IDN?

Description

Query Syntax *IDN?

Return parameter <string>

Example *IDN?

Returns the function generator manufacturer, model number, serial number and firmware version number in the following format:

GW INSTEK,AFG-X25X,SN:XXXXXXXX,Vm.mm

GW INSTEK,AFG-225,SN:XXXXXXXX,Vm.mm

System Query

<256 ASCII characters.

System Query

Returns the identification of the function generator.

AFG-200 SERIES USER MANUAL

*RST

Description

Reset the function generator to its factory default

System Command

state.

Note

Note the *RST command will not delete instrument save states in memory.

Syntax *RST

SYSTem:VERSion?

Description

Performs a system version query. Returns a string

System Query

with the instrument, firmware version, FPGA revision

Query Syntax SYSTem:VERSion?

Return parameter <string>

Example SYST:VERS?

AFG-225 VX.XXX_XXXX

*OPC

Description

Returns the year and version for that year (1).

System Command

This command sets the Operation Complete Bit (bit 0) of the Standard Event Status Register after the function generator has completed all pending operations. For the AFG-200 series, the *OPC command is used to indicate when a sweep or burst has completed.

Note

Before the OPC bit is set, other commands may be executed.

Syntax *OPC

AFG-200 SERIES USER MANUAL

*OPC?

Description

Note

Query Syntax *OPC?

Return parameter 1

Example *OPC?

Returns the OPC bit to the output buffer when all pending operations have completed. I.e. when the OPC bit is set.

Commands cannot be executed until the *OPC? query has completed.

Returns a “1” when all pending operations are complete.

*WAI

Description

Note

This command waits until all pending operations have completed before executing additional commands. I.e., when the OPC bit is set.

This command is only used for triggered sweep and burst modes.

System Query

System Command

Syntax *WAI

AFG-200 SERIES USER MANUAL

Status Register Commands

*CLS

Description

Syntax *CLS

The *CLS command clears all the event registers, the error queue and cancels an *OPC command.

*ESE

Description

Note

Syntax *ESE <enable value>

Parameter

Example *ESE 20

The Standard Event Status Enable command determines which events in the Standard Event Status Event register can set the Event Summary Bit (ESB) of the Status Byte register. Any bit positions set to 1 enable the corresponding event. Any enabled events set bit 5 (ESB) of the Status Byte register.

The *CLS command clears the event register, but not the enable register.

<enable value> 0~255

Sets a bit weight of 20 (bits 2 and 4).

System Command

Query Syntax *ESE?

Return Parameter

Bit Register Bit Register 0 Not used 4 Message Available

1 Not used 5 Standard Event

2 Error Queue 6 Master Summary

3 Questionable

Data

7 Not used

AFG-200 SERIES USER MANUAL

Example *ESE?

*ESR?

Description

Bit 2 is set.

System Command

Reads and clears the Standard Event Status Register. The bit weight of the standard event status register is returned.

Note

The *CLS will also clear the standard event status register.

Query Syntax *ESR?

Return Parameter Bit Register Bit Register

0 Operation

4 Execution Error

Complete

1 Not Used 5 Command Error

2 Query Error 6 Not Used

3 Device Error 7 Power On

Query Example *ESR?

Returns the bit weight of the standard event status register (bit 0 and 2).

*STB?

Description

Note

Syntax *STB?

Reads the Status byte condition register.

Bit 6, the master summary bit, is not cleared.

System Command

AFG-200 SERIES USER MANUAL

*SRE

Description

Note

Syntax *SRE <enable value>

Parameter

Example *SRE 12

Query Syntax *SRE?

Return Parameter

Query Example *SRE?

The Service Request Enable Command determines which events in the Status Byte Register are allowed to set the MSS (Master summary bit). Any bit that is set to “1” can cause the MSS bit to be set.

The *CLS command clears the status byte event register, but not the enable register.

<enable value> 0~255

Sets a bit weight of 12 (bits 2 and 3) for the service request enable register.

Bit Register Bit Register 0 Not used 4 Message Available

1 Not used 5 Standard Event

2 Error Queue 6 Master Summary

3 Questionable

Data

System Command

7 Not used

Returns the bit weight of the status byte enable register.

AFG-200 SERIES USER MANUAL

Apply Commands

The APPLy command has 5 different types of outputs (Sine, Square, Ramp, Pulse, Noise, ). The command is the quickest, easiest way to output waveforms remotely. Frequency, amplitude and offset can be specified for each function.

As only basic parameters can be set with the Apply command, other parameters use the instrument default values.

The Apply command will set the trigger source to immediate and disable burst, modulation and sweep modes. Turns on the output commandOUTPut[1|2] ON. The termination setting will not be changed.

As the frequency, amplitude and offset parameters are in nested square brackets, amplitude can only be specified if the frequency has been specified and offset can only be specified if amplitude has been set. For the example:

SOURce[1|2]:APPLy:SINusoid [<frequency> [,<amplitude> [,<offset>] ]]

Output Frequency

For the output frequency, MINimum, MAXimum and DEFault can be used. The default frequency for all functions is set to 1 kHz. The maximum and minimum frequency depends on the function used. If a frequency output that is out of range is specified, the max/min frequency will be used instead. A “Data out range error will be generated” from the remote terminal.

AFG-200 SERIES USER MANUAL

Output Amplitude

When setting the amplitude, MINimum, MAXimum and DEFault can be used. The range depends on the function being used and the output termination (50Ω or high impedance). The default amplitude for all functions is 100 mVpp (50Ω).

If the amplitude has been set and the output termination is changed from 50Ω to high impedance, the amplitude will double. Changing the output termination from high impedance to 50Ω will half the amplitude.

Vrms, dBm or Vpp units can be used to specify the output unit to use with the current command. The VOLT:UNIT command can be used to set the units when no unit is specified with the Apply command. If the output termination is set to high impedance, dBm units cannot be used. The units will default to Vpp.

The output amplitude can be affected by the function and unit chosen. Vpp and Vrms or dBm values may have different maximum values due to differences such as crest factor. For example, a 5Vrms square wave must be adjusted to 3.536 Vrms for a sine wave.

DC Offset voltage

The offset parameter can be set to MINimum, MAXimum or DEFault. The default offset is 0 volts. The offset is limited by the output amplitude as shown below.

|Voffset| < Vmax – Vpp/2

If the output specified is out of range, the maximum offset will be set.

AFG-200 SERIES USER MANUAL

The offset is also determined by the output termination (50Ω or high impedance). If the offset has been set and the output termination has changed from 50Ω to high impedance, the offset will double. Changing the output termination from high impedance to 50Ω will half the offset.

SOURce[1|2]:APPLy:SINusoid

Description

Syntax

Parameter <frequency>

Outputs a sine wave from the selected channel when the command has executed. Frequency, amplitude and offset can also be set.

SOURce[1|2]:APPLy:SINusoid [<frequency> [,<amplitude> [,<offset>] ]]

Source Specific Command

1μHz~25MHz

1mVpp~2.5Vpp (50Ω) (0.883 Vrms)

-1.25V~1.25V (50Ω)

Example SOUR1:APPL:SIN 2KHZ,MAX,MAX

Sets frequency to 2kHz and sets the amplitude and offset to the maximum.

Source Specific

SOURce[1|2]:APPLy:SQUare

Description

Outputs a square wave from the selected channel

Command

when the command has executed. Frequency, amplitude and offset can also be set. The duty cycle is set to 50%.

Syntax

SOURce[1|2]:APPLy:SQUare [<frequency> [,<amplitude> [,<offset>] ]]

Parameter <frequency>

1μHz~25MHz

1mVpp~2.5Vpp (50Ω)

-1.25V~1.25V (50Ω)

Example SOUR1:APPL:SQU 2KHZ,MAX,MAX

AFG-200 SERIES USER MANUAL

Sets frequency to 2kHz and sets the amplitude and offset to the maximum.

Source Specific

SOURce[1|2]:APPLy:RAMP

Description

Outputs a ramp wave from the selected channel

Command

when the command has executed. Frequency, amplitude and offset can also be set. The symmetry is set to 50%.

Syntax SOURce[1|2]:APPLy:RAMP [<frequency>

[,<amplitude> [,<offset>] ]]

Parameter <frequency>

1μHz~1MHz

1mVpp~2.5Vpp (50Ω)

-1.25V~1.25V (50Ω)

Example SOUR1:APPL:RAMP 2KHZ,MAX,MAX

Sets frequency to 2kHz and sets the amplitude and offset to the maximum.

Source Specific

SOURce[1|2]:APPLy:PULSe

Description

Outputs a pulse waveform from the selected

Command

channel when the command has executed. Frequency, amplitude and offset can also be set.

Note

The PW settings from the SOURce[1|2]:PULS: WIDT command are preserved. Edge and pulse width may be adjusted to supported levels.

Repetition rates will be approximated from the frequency. For accurate repetition rates, the period should be adjusted using the SOURce[1|2]:PULS:PER command

Syntax SOUR[1|2]:APPLy:PULSe [<frequency> [,<amplitude>

[,<offset>] ]]

Parameter <frequency>

500μHz~25MHz

AFG-200 SERIES USER MANUAL

1mVpp~2.5Vpp (50Ω)

-1.25V~1.25V (50Ω)

Example SOUR1:APPL:PULS 1KHZ,MIN,MAX

Sets frequency to 1kHz and sets the amplitude to minimum and the and offset to the maximum.

Source Specific

SOURce[1|2]:APPLy:NOISe

Description

Outputs Gaussian noise. Amplitude and offset can

Command

also be set.

Note

Frequency cannot be used with the noise function; however a value (or DEFault) must be specified. The frequency is remembered for the next function used.

Syntax SOURce[1|2]:APPLy:NOISe [<frequency|DEFault>

[,<amplitude> [,<offset>] ]]

Parameter <frequency> Not applicable

1mVpp~2.5Vpp (50Ω)

-1.25V~1.25V (50Ω)

Example SOUR1:APPL:NOIS DEF, 1, 1.0

Sets the amplitude to 1 volts with an offset of 1 volt.

SOURce[1|2]:APPLy:USER

Description

Note

Outputs an arbitrary waveform from the selected channel. The output is that specified from the FUNC:USER command.

Frequency and amplitude cannot be used with the DC function; however a value (or DEFault) must be specified. The values are remembered for the next function used.

Source Specific Command

AFG-200 SERIES USER MANUAL

Syntax SOURce[1|2]:APPLy:USER [<frequency> [,<amplitude>

[,<offset>] ]]

Parameter <frequency>

Example SOUR1:APPL:USER

SOURce[1|2]:APPLy?

Description

Note

Syntax SOURce[1|2]:APPLy?

Return Parameter <string> Function, frequency,

Example SOUR1:APPL?

Outputs a string with the current settings.

The string can be passed back appended to the Apply Command.

SIN +5.0000000000000E+03,+1.0000E+00,-1.0E+00

Returns a string with the current function and parameters, Sine, 5kHz, 1 Vpp, -1V offset.

1μHz~60MHz

1mVpp~2.5Vpp (50Ω)

-1.25V~1.25V (50Ω)

Source Specific Command

amplitude, offset

AFG-200 SERIES USER MANUAL

Output Commands

Unlike the Apply commands, the Output commands are low level commands to program the function generator.

This section describes the low-level commands used to program the function generator. Although the APPLy command provides the most straightforward method to program the function generator, the low-level commands give you more flexibility to change individual parameters.

Source Specific

SOURce[1|2]:FUNCtion

Description

The FUNCtion command selects and outputs the selected output. The User parameter outputs an arbitrary waveform previously set by the SOURce[1|2]:FUNC:USER command.

Command

Note

If the function mode is changed and the current frequency setting is not supported by the new mode, the frequency setting will be altered to next highest value.

Vpp and Vrms or dBm amplitude values may have different maximum values due to differences such as crest factor. For example, if a 5Vrms square wave is changed to a sinewave, then the Vrms is automatically adjusted to 3.536.

The modulation, burst and sweep modes can only be used with some of the basic waveforms. If a mode is not supported, the conflicting mode will be disabled. See the table below.

AFG-200 SERIES USER MANUAL

FSK

SUM

SWEEP

BURST

Sine Square Ramp Pulse Noise ARB

9 9 9 9

9 9 9

× × ×

9 9 9 9

× ×

9 9 9 9 9

9 9 9

× × ×

× ×

√

Syntax SOURce[1|2]:FUNCtion {SINusoid|SQUare|RAMP|

PULSe|NOISe| USER}

Example SOUR1:FUNC SIN

Sets the output as a sine function.

Query Syntax SOURce[1|2]:FUNCtion?

Return Parameter SIN, SQU, RAMP, PULS,

NOIS, USER

Returns the current output type.

Example SOUR1:FUNC?

SIN

Current output is sine.

Source Specific

SOURce[1|2]:FREQuency

Description

The SOURce[1|2]:FREQuency command sets the

Command

output freuquency for the selected channel. The query command returns the current frequency setting.

Note

The maximum and minimum frequency depends on the function mode.

Sine, Square Ramp

Pulse

1μHz~25MHz

1μHz~1MHz

500μHz~25MHz

AFG-200 SERIES USER MANUAL

Noise

User

If the function mode is changed and the current frequency setting is not supported by the new mode, the frequency setting will be altered to next highest value.

The duty cycle of square waveforms depends on the frequency settings.

1.0% to 99.0%(frequency≤100 KHz)

10% to 90% (100 KHz ≤ frequency ≤1MHz)

50% (frequency ≤ 25 MHz)

If the frequency is changed and the set duty cycle cannot support the new frequency, the highest duty cycle available at that frequency will be used. A “settings conflict” error will result from the above scenario.

Syntax SOURce[1|2]:FREQuency

{<frequency>|MINimum|MAXimum}

Example SOUR1:FREQ MAX

Sets the frequency to the maximum for the current mode.

Not applicable

1μHz~60MHz

Query Syntax SOURce[1|2]:FREQuency?

Return Parameter <NR3> Returns the frequency for

the current mode.

Example SOUR1:FREQ? MAX

+1.0000000000000E+06

The maximum frequency that can be set for the current function is 1MHz.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:AMPlitude

Description

The SOURce[1|2]:AMPLitude command sets the output amplitude for the selected channel. The query command returns the current amplitude settings.

Source Specific Command

Note

The maximum and minimum amplitude depends on the output termination. The default amplitude for all functions is 100 mVpp (50Ω). If the amplitude has been set and the output termination is changed from 50Ω to high impedance, the amplitude will double. Changing the output termination from high impedance to 50Ω will half the amplitude.

The offset and amplitude are related by the following equation.

|Voffset| < Vmax – Vpp/2

If the output termination is set to high impedance, dBm units cannot be used. The units will default to Vpp.

The amplitude units can be explicitly used each time the SOURce[1|2]:AMPlitude command is used. Alternatively, the VOLT:UNIT command can be used to set the amplitude units for all commands.

AFG-200 SERIES USER MANUAL

Syntax SOURce[1|2]:AMPlitude {< amplitude>

|MINimum|MAXimum}

Example SOUR1:AMP MAX

Sets the amplitude to the maximum for the current mode.

Query Syntax SOURce[1|2]:AMPlitude? {MINimum|MAXimum}

Return Parameter <NR3> Returns the amplitude for

the current mode.

Example SOUR1:AMP? MAX

+2.50000E+00

The maximum amplitude that can be set for the current function is 2.5 volts.

Source Specific

SOURce[1|2]:DCOffset

Description

Sets or queries the DC offset for the current mode.

Command

Note

The offset parameter can be set to MINimum, MAXimum or DEFault. The default offset is 0 volts. The offset is limited by the output amplitude as shown below.

|Voffset| < Vmax – Vpp/2

If the output specified is out of range, the maximum offset will be set.

AFG-200 SERIES USER MANUAL

Syntax SOURce[1|2]:DCOffset {< offset>

|MINimum|MAXimum}

Example SOUR1:DCO MAX

Sets the offset to the maximum for the current mode.

Query Syntax SOURce[1|2]:DCOffset? {MINimum|MAXimum}

Return Parameter <NR3> Returns the offset for the

current mode.

Example SOUR1:DCO?

+1.0000E+00

The offset for the current mode is set to +1 volts.

Source Specific

SOURce[1|2]:SQUare:DCYCle

Description

Sets or queries the duty cycle for square waves

Command

only. The setting is remembered if the function mode is changed. The default duty cycle is 50%.

Note The duty cycle of square waveforms depend on the

frequency settings.

1.0% to 99.0%(frequency≤100 KHz)

10% to 90% (100 KHz ≤ frequency ≤1MHz)

50% (frequency ≤ 25 MHz)

For square waveforms, the Apply command and AM/FM modulation modes ignore the duty cycle settings.

Syntax SOURce[1|2]:SQUare:DCYCle {< percent>

|MINimum|MAXimum}

AFG-200 SERIES USER MANUAL

Example SOUR1:SQU:DCYC MAX

Sets the duty cycle to the highest possible for the current frequency.

Query Syntax SOURce[1|2]:SQUare:DCYCle?

{MINimum|MAXimum}

Return Parameter <NR3> Returns the duty cycle as a

percentage.

Example SOUR1:SQU:DCYC?

+5.00E+01

The duty cycle is set 50%.

Source Specific

SOURce[1|2]:RAMP:SYMMetry

Description

Sets or queries the symmetry for ramp waves only.

Command

The setting is remembered if the function mode is changed. The default symmetry is 50%.

Note

For ramp waveforms, the Apply command and AM/FM modulation modes ignore the current symmetry settings.

Syntax SOURce[1|2]:RAMP:SYMMetry {< percent>

|MINimum|MAXimum}

Example SOUR1:RAMP:SYMM MAX

Sets the symmetry to the 100%.

Query Syntax SOURce[1|2]:RAMP:SYMMetry?

{MINimum|MAXimum}

Return Parameter <NR3> Returns the symmetry as a

percentage.

Example SOUR1:RAMP:SYMMetry?

+1.0000E+02

The symmetry is set as 100%.

OUTPut[1|2]

Description

AFG-200 SERIES USER MANUAL

Source Specific Command

Enables/Disables or queries the front panel output from the selected channel. The default is set to off.

Note

If the output is overloaded by an external voltage, the output will turn off and an error message will be displayed. The overload must first be removed before the output can be turned on again with output command.

Using the Apply command automatically sets the front panel output to on.

Syntax OUTPut[1|2] {OFF|ON}

Example OUTP1 ON

Turns the channel 1 output on.

Query Syntax OUTPut[1|2]?

Return Parameter 1

Example OUTP1?

The channel 1 output is currently on.

OUTPut[1|2]:LOAD

Description

Sets or queries the output termination. Two impedance settings can be chosen, DEFault (50Ω) and INFinity (high impedance >10 kΩ).

The output termination is to be used as a reference only. If the output termination is set 50Ω but the actual load impedance is not 50Ω, then the amplitude and offset will not be correct.

OFF

Source Specific Command

Note

If the amplitude has been set and the output termination is changed from 50Ω to high

AFG-200 SERIES USER MANUAL

impedance, the amplitude will double. Changing the output termination from high impedance to 50Ω will half the amplitude.

If the output termination is set to high impedance, dBm units cannot be used. The units will default to Vpp.

Syntax OUTPut[1|2]:LOAD {DEFault|INFinity}

Example OUTP1:LOAD DEF

Sets the channel 1 output termination to 50Ω.

Query Syntax OUTPut[1|2]:LOAD?

Return Parameter DEF Default

INF INFinity

Example OUTP1:LOAD?

DEF

The output termination for channel 1 is set to 50Ω.

Source Specific

SOURce[1|2]:VOLTage:UNIT

Description

Sets or queries the output amplitude units. There

Command

are three types of units: VPP, VRMS and DBM.

Note

The units set with the VOLTage:UNIT command will be used as the default unit for all amplitude units unless a different unit is specifically used for a command.

If the output termination is set to high impedance, dBm units cannot be used. The Units will automatically default to Vpp.

Syntax SOURce[1|2]:VOLTage:UNIT {VPP|VRMS|DBM}

Example SOUR1:VOLT:UNIT VPP

Sets the amplitude units to Vpp.

Query Syntax SOURce[1|2]:VOLTage:UNIT?

Return Parameter VPP Vpp

AFG-200 SERIES USER MANUAL

VRMS Vrms

Example

DBM dBm

SOUR1:VOLT:UNIT?

VPP

The amplitude units are set to Vpp.

AFG-200 SERIES USER MANUAL

Pulse Configuration Commands

The pulse chapter is used to control and output pulse waveforms. Unlike the APPLy command, low level control is possible including setting the rise time, fall time, period and pulse width.

Period

90%

50%

10%

Fall timeRise time

10%

50%

Pulse Width

SOURce[1|2]:PULSe:PERiod

Description

Note

Syntax SOURce[1|2]:PULSe:PERiod

Sets or queries the pulse period. The default period is 1 ms.

The pulse period must be greater than the pulse width and edge time(1.6x) combined.

Pulse Width + (1.6 * Edge Time) < Period

If the edge time or pulse width are too great, they will automatically be reduced to fit the period by the function generator.

The PULSe:PERiod function will change the period for all functions, not just for the pulse waveforms. If a different function is chosen and the current period is out of range, the period will be automatically adjusted to suit the new function.

{<seconds>|MINimum|MAXimum}

Source Specific Command

Example SOUR1:PULS:PER MIN

Sets the period to the minimum time allowed.

Query Syntax SOURce[1|2]:PULSe:PERiod? [MINimum|MAXimum]

AFG-200 SERIES USER MANUAL

Return Parameter <seconds> 40ns~2000s

Example SOUR1:PULS:PER?

+1.0000E+01

The period is set to 10 seconds.

SOURce[1|2]:PULSe:WIDTh

Description

Note

Syntax SOURce[1|2]:PULSe:WIDTh

Sets or queries the pulse width. The default pulse width is 100us.

The minimum pulse width is affected by the period time. If the period is over 20 or 200 seconds, then the minimum pulse width is 1us and 10us, respectively.

Pulse width is defined as the time from the rising to falling edges (at a threshold of 50%).

The pulse width cannot be less than the edge time times 1.6.

Pulse Width > 1.6 * Edge Time

The pulse width must be less than the period minus the edge time (x1.6).

Pulse Width < Period – (1.6 *Edge Time)

{<seconds>|MINimum|MAXimum}

Source Specific Command

Example SOUR1:PULS:WIDT MAX

Sets the pulse width to the maximum allowed.

Query Syntax SOURce[1|2]:PULSe:WIDTh? [MINimum|MAXimum]

Return Parameter <seconds> 20 ns ~ 1999.9 seconds

Example SOUR1:PULS:WIDT? MIN

+8.0000E-09

The pulse width is set to 8 nanoseconds.

AFG-200 SERIES USER MANUAL

Amplitude Modulation (AM) Commands

AM Overview

To successfully create an AM waveform, the following commands must be executed in order.

Enable AM

Modulation

Configure Carrier

Select

Modulation

Source

Select Shape

Set Modulating

Frequency

Set Modulation

Depth

3. Turn on AM modulation using the SOURce[1|2]: AM:STAT ON command

4. Use the APPLy command to select a carrier waveform. Alternatively the equivalent FUNC, FREQ, AMPl, and DCOffs commands can be used to create a carrier waveform with a designated frequency, amplitude and offset.

5. Select an internal or external modulation source using the SOURce[1|2]:AM:SOUR command.

6. Use the SOURce[1|2]:AM:INT:FUNC command to select a sine, square, upramp, dnramp or triangle modulating waveshape. For internal sources only.

7. Set the modulating frequency using the SOURce[1|2]: AM:INT:FREQ command. For internal sources only.

8. Set the modulation depth using the SOURce[1|2]: AM:DEPT command.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:AM:STATe

Description

Sets or disables AM modulation. By default AM modulation is disabled. AM modulation must be enabled before setting other parameters.

Source Specific Command

Note

Burst or sweep mode will be disabled if AM modulation is enabled. As only one modulation is allowed at any one time, other modulation modes will be disabled when AM modulation is enabled.

Syntax SOURce[1|2]:AM:STATe {OFF|ON}

Example SOUR1:AM:STAT ON

Enables AM modulation.

Query Syntax SOURce[1|2]:AM:STATe?

Return Parameter

0 Disabled (OFF)

1 Enabled (ON)

Example SOUR1:AM:STAT?

AM modulation mode is currently enabled.

Source Specific

SOURce[1|2]:AM:INTernal:FUNCtion

Description

Sets the shape of the modulating waveform from

Command

sine, square, triangle, upramp and dnramp. The default shape is sine.

Note

Square and triangle waveforms have a 50% duty cycle. Upramp and dnramp have a symmetry of 100% and 0%, respectively.

Syntax SOURce[1|2]:AM:INTernal:FUNCtion

{SINusoid|SQUare|TRIangle|UPRamp|DNRamp}

Example SOUR1:AM:INT:FUNC SIN

Sets the AM modulating wave shape to sine.

AFG-200 SERIES USER MANUAL

Query Syntax SOURce[1|2]:AM:INTernal:FUNCtion?

Return Parameter

SIN Sine UPRAMP Upramp

SQU Square DNRAMP Dnramp

TRI Triangle

Example SOUR1:AM:INT:FUNC?

SIN

The shape for the modulating waveform is Sine.

Source Specific

SOURce[1|2]:AM:INTernal:FREQuency

Description

Sets the frequency of the internal modulating

Command

waveform only. The default frequency is 100Hz.

Syntax SOURce[1|2]:AM:INTernal:FREQuency

{<frequency>|MINimum|MAXimum}

Parameter <frequency> 2 mHz~ 20 kHz

Example SOUR1:AM:INT:FREQ +1.0000E+02

Sets the modulating frequency to 100Hz.

Query Syntax SOURce[1|2]:AM:INTernal:FREQuency?

[MINimum|MAXimum]

Return Parameter

<NR3> Returns the frequency in

Hz.

Example SOUR1:AM:INT:FREQ? MIN

+1.0000E+02

Returns the minimum frequency allowed.

SOURce[1|2]:AM:DEPTh

Description

Sets or queries the modulation depth for internal sources only. The default is 100%.

Source Specific Command

AFG-200 SERIES USER MANUAL

Note

Syntax SOURce[1|2]:AM:DEPTh {<depth in percent>

Parameter <depth in percent> 0~120%

Example SOUR1:AM:DEPT 50

Query Syntax SOURce[1|2]:AM:DEPTh? [MINimum|MAXimum]

Return Parameter

Example SOUR1:AM:DEPT?

The function generator will not output more than ±5V, regardless of the modulation depth.

The modulation depth of an external source is controlled using the ±5V MOD INPUT terminal on the rear panel, and not the SOURce[1|2]:AM:DEPTh command.

|MINimum|MAXimum}

Sets the modulation depth to 50%.

<NR3> Return the modulation

depth as a percentage.

+1.0000E+02

The modulation depth is 100%.

AFG-200 SERIES USER MANUAL

Frequency Modulation (FM) Commands

FM Overview

The following is an overview of the steps required to generate an FM waveform.

Enable FM

Modulation

Configure Carrier

Select

Modulation

Source

Select shape

Set Modulating

Frequency

Set Peak

Frequency

Deviation

9. Turn on FM modulation using the SOURce[1|2]: FM:STAT ON command.

10. Use the APPLy command to select a carrier waveform. Alternatively, the FUNC, FREQ, AMPl, and DCOffs commands can be used to create a carrier waveform with a designated frequency, amplitude and offset.

11. Select an internal or external modulation source using the SOURce[1|2]:FM:SOUR command.

12. Use the SOURce[1|2]:FM:INT:FUNC command to select a sine, square, upramp, dnramp or triangle modulating waveshape. For internal sources only.

13. Set the modulating frequency using the SOURce[1|2]: FM:INT:FREQ command. For internal sources only.

14. Use the SOURce[1|2]:FM:DEV command to set the frequency deviation.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:FM:STATe

Description

Sets or disables FM modulation. By default FM modulation is disabled. FM modulation must be enabled before setting other parameters.

Source Specific Command

Note

Burst or sweep mode will be disabled if FM modulation is enabled. As only one modulation is allowed at any one time, other modulation modes will be disabled when FM modulation is enabled.

Syntax SOUR[1|2]:FM:STATe {OFF|ON}

Example SOUR1:FM:STAT ON

Enables FM modulation.

Query Syntax SOURce[1|2]:FM:STATe?

Return Parameter

0 Disabled (OFF)

1 Enabled (ON)

Example SOUR1:FM:STAT?

FM modulation mode is currently enabled.

Source Specific

SOURce[1|2]:FM:INTernal:FUNCtion

Description

Sets the shape of the modulating waveform from

Command

sine, square, triangle, upramp and dnramp. The default shape is sine.

Note

Square and triangle waveforms have a 50% duty cycle. Upramp and dnramp have a symmetry of 100% and 0%, respectively.

Syntax SOURce[1|2]:FM:INTernal:FUNCtion

{SINusoid|SQUare|TRIangle|UPRamp|DNRamp}

Example SOUR1:FM:INT:FUNC SIN

Sets the FM modulating wave shape to sine.

AFG-200 SERIES USER MANUAL

Query Syntax SOURce[1|2]:FM:INTernal:FUNCtion?

Return Parameter

SIN Sine UPRAMP Upramp

SQU Square DNRAMP Dnramp

TRI Triangle

Example SOUR1:FM:INT:FUNC?

SIN

The shape for the modulating waveform is Sine.

Source Specific

SOURce[1|2]:FM:INTernal:FREQuency

Description

Sets the frequency of the internal modulating

Command

waveform only. The default frequency is 10Hz.

Syntax SOURce[1|2]:FM:INTernal:FREQuency

{<frequency>|MINimum|MAXimum}

Parameter <frequency> 2 mHz~ 20 kHz

Example SOUR1:FM:INT:FREQ 100

Sets the modulating frequency to 100Hz.

Query Syntax SOURce[1|2]:FM:INTernal:FREQuency?

[MINimum|MAXimum]

Return Parameter

<NR3> Returns the frequency in

Hz.

Example SOUR1:FM:INT:FREQ? MAX

+2.0000E+04

Returns the maximum frequency allowed.

SOURce[1|2]:FM:DEViation

Source Specific Command

AFG-200 SERIES USER MANUAL

Description

Note

Sets or queries the peak frequency deviation of the modulating waveform from the carrier waveform. The default peak deviation is 100Hz.

The frequency deviation of external sources is controlled using the ±5V MOD INPUT terminal on the rear panel. A positive signal (>0~+5V) will increase the deviation (up to the set frequency deviation), whilst a negative voltage will reduce the deviation.

The relationship of peak deviation to modulating frequency and carrier frequency is shown below.

Peak deviation = modulating frequency – carrier frequency.

The carrier frequency must be greater than or equal to the peak deviation frequency. The sum of the deviation and carrier frequency must not exceed the maximum frequency for a specific carrier shape. If an out of range deviation is set for any of the above conditions, the deviation will be automatically adjusted to the maximum value allowed and an “out of range” error will be generated.

For square wave carrier waveforms, the deviation may cause the duty cycle frequency boundary to be exceeded. In these conditions the duty cycle will be adjusted to the maximum allowed and a “settings conflict” error will be generated.

Syntax SOURce[1|2]:FM:DEViation {<peak deviation in

Hz>|MINimum|MAXimum}

Parameter <peak deviation in Hz> DC~25MHz

DC~15MHz(square)

DC~1MHz (Ramp)

Example SOUR1:FM:DEV MAX

Sets the frequency deviation to the maximum value allowed.

AFG-200 SERIES USER MANUAL

Query Syntax SOURce[1|2]:FM:DEViation? [MINimum|MAXimum]

Return Parameter

Example SOURce[1|2]:FM:DEViation? MAX

<NR3> Returns the frequency

deviation in Hz.

+1.0000E+01

Returns the maximum frequency deviation allowed.

AFG-200 SERIES USER MANUAL

Frequency-Shift Keying (FSK) Commands

FSK Overview

The following is an overview of the steps required to generate an

FSK modulated waveform.

Enable FSK

Modulation

Configure Carrier

Select FSK Source

Select FSK HOP

Frequency

Set FSK Rate

15. Turn on FSK modulation using the SOURce[1|2]: FSK:STAT ON command.

16. Use the APPLy command to select a carrier waveform. Alternatively, the FUNC, FREQ, AMPl, and DCOffs commands can be used to create a carrier waveform with a designated frequency, amplitude and offset.

17. Select an internal or external modulation source using the SOURce[1|2]:FSK:SOUR command.

18. Set the hop frequency using the SOURce[1|2]:FSK:FREQ command.

19. Use the SOURce[1|2]: FSK:INT:RATE command to set the FSK rate. The FSK rate can only be set for internal sources.

SOURce[1|2]:FSKey:STATe

Description

Turns FSK Modulation on or off. By default FSK modulation is off.

Source Specific Command

Note

Syntax SOURce[1|2]:FSKey:STATe {OFF|ON}

Burst or sweep mode will be disabled if FSK modulation is enabled. As only one modulation is allowed at any one time, other modulation modes will be disabled when FSK modulation is enabled.

AFG-200 SERIES USER MANUAL

Example SOUR1:FSK:STAT ON

Enables FSK modulation

Query Syntax SOURce[1|2]:FSKey:STATe?

Return Parameter

0 Disabled (OFF)

1 Enabled (ON)

Example SOUR1:FSK:STAT?

FSK modulation is currently enabled.

Source Specific

SOURce[1|2]:FSKey:FREQuency

Description

Sets the FSK hop frequency. The default hop

Command

frequency is set to 100Hz.

Note

For FSK, the modulating waveform is a square wave with a duty cycle of 50%.

Syntax SOURce[1|2]:FSKey:FREQuency

{<frequency>|MINimum|MAXimum}

Parameter <frequency>

1 μHz~25MHz(sine)

1 μHz~15MHz(Square、 Pulse)

1 μHz~1MHz(Ramp)

Example SOUR1:FSK:FREQ +1.0000E+02

Sets the FSK hop frequency to to 100Hz.

Query Syntax SOURce[1|2]:FSKey:FREQuency?

[MINimum|MAXimum]

Return Parameter

<NR3> Returns the frequency in

Hz.

Example SOUR1:FSK:FREQ? MAX

+2.5000E+06

Returns the maximum hop frequency allowed.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:FSKey:INTernal:RATE

Description

Sets or queries the FSK rate for internal sources only.

Source Specific Command

Note

External sources will ignore this command.

Syntax SOURce[1|2]:FSKey:INTernal:RATE {<rate in Hz>

|MINimum|MAXimum}

Parameter <rate in Hz> 2 mHz~100 kHz

Example SOUR1:FSK:INT:RATE MAX

Sets the rate to the maximum (100kHz).

Query Syntax SOURce[1|2]:FSKey:INTernal:RATE?

[MINimum|MAXimum]

Return Parameter

<NR3> Returns the FSK rate in

Hz.

Example SOUR1:FSK:INT:RATE? MAX

+1.0000E+05

Returns the maximum FSK rate allowed.

AFG-200 SERIES USER MANUAL

Phase Modulation (PM)Commands

PM Overview

The following is an overview of the steps required to generate a PM modulated waveform.

Enable PM

Modulation

Configure Carrier

Select

Modulation

Source

Select Shape

Select

Modulating

Frequency

Set DEViation

20. Turn on PM modulation using the SOURce[1|2]: PM:STATe ON command.

21. Use the APPLy command to select a carrier waveform. Alternatively, the FUNC, FREQ, AMPl, and DCOffs commands can be used to create a carrier waveform with a designated frequency, amplitude and offset.

22. Select an internal or external modulation source using the SOURce[1|2]:PM:SOUR command.

23. Use the SOURce[1|2]: PM:INT:FUNC command to select a sine, square, upramp, dnramp or triangle modulating waveshape. For internal sources only.

24. Set the modulating frequency using the SOURce[1|2]:PM:INT:FREQ command. For internal sources only.

25. Use the SOURce[1|2]:PM:DEV command to set the phase DEViation.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:PM:STATe

Description

Turns PM Modulation on or off. By default PM modulation is off.

Source Specific Command

Note

Burst or sweep mode will be disabled if PM modulation is enabled. As only one modulation is allowed at any one time, other modulation modes will be disabled when PM

modulation is enabled.

Syntax SOURce[1|2]:PM:STATe {OFF|ON}

Example SOUR1:PM:STAT ON

Enables PM modulation

Query Syntax SOURce[1|2]:PM:STATe?

Return Parameter

0 Disabled (OFF)

1 Enabled (ON)

Example SOUR1:PM:STAT?

PM modulation is currently enabled.

Source Specific

SOURce[1|2]:PM:INTernal:FUNction

Description

Sets the shape of the modulating waveform from

Command

sine, square, triangle, upramp and dnramp. The default shape is sine.

Note

Square and triangle waveforms have a 50% duty cycle. Upramp and dnramp have a symmetry to 100% and 0%, respectively. .

Syntax SOURce[1|2]:PM:INTernal:FUNction

{SINusoid|SQUare|TRIangle|UPRamp|DNRamp}

Example SOUR1:PM:INT:FUN SIN

Sets the PM modulating wave shape to sine. .

Query Syntax SOURce[1|2]:PM:INTernal:FUNction?

AFG-200 SERIES USER MANUAL

Return Parameter

SIN Sine UPRAMP Upramp

SQU Square DNRAMP Dnramp

TRI Triangle

Example SOUR1:PM:INT:FUNC?

SIN

The shape for the modulating waveform is Sine.

Source Specific

SOURce[1|2]:PM:INTernal:FREQuency

Description

Sets the modulating waveform frequency for

Command

internal sources. The default frequency is set to 100Hz.

Syntax SOURce[1|2]:PM:INTernal:FREQuency

{<frequency>|MINimum|MAXimum}

Parameter <frequency> 2 mHz~ 20 kHz

Example SOUR1:PM:INT:FREQ MAX

Sets the frequency to the maximum value.

Query Syntax SOURce[1|2]:PM:INTernal:FREQuency?

Return Parameter

<NR3> Returns the frequency in

Hz.

Example SOUR1:PM:INT:FREQ? MAX

+2.0000E+04

Returns the modulating frequency. (20kHz)

SOURce[1|2]:PM:DEViation

Description

Sets or queries the phase deviation of the modulating waveform from the carrier waveform. The default phase deviation is 180°.

Source Specific Command

AFG-200 SERIES USER MANUAL

Note

For external sources, the phase deviation is controlled by the ±5V MOD Input terminal on the rear panel. If the phase deviation is set to 180 degrees, then +5V represents a deviation of 180 degrees. A lower input voltage will decrease the set phase deviation.

Syntax SOURce[1|2]:PM:DEViation {< phase>|minimum

|maximum}

Parameter <percent> 0°~360°

Example SOUR1:PM:DEViation +3.0000E+01

Sets the deviation to 30°.

Query Syntax SOURce[1|2]:PM:DEViation?

Return Parameter

<NR3> Returns the deviation .

Example SOUR1:PM:DEViation?

+3.0000E+01

The current deviation is 30°.

AFG-200 SERIES USER MANUAL

SUM Modulation (SUM) Commands

SUM Overview

The following is an overview of the steps required to generate a SUM modulated waveform.

Enable SUM

Modulation

Configure Carrier

Select

Modulation

Source

Select Shape

Select

Modulating

Frequency

Set AMPL

26. Turn on SUM modulation using the SOURce[1|2]: SUM:STATe ON command.

27. Use the APPLy command to select a carrier waveform. Alternatively, the FUNC, FREQ, AMPl, and DCOffs commands can be used to create a carrier waveform with a designated frequency, amplitude and offset.

28. Select an internal or external modulation source using the SOURce[1|2]:SUM:SOUR command.

29. Use the SOURce[1|2]: SUM:INT:FUNC command to select a sine, square, upramp, dnramp or triangle modulating waveshape. For internal sources only.

30. Set the modulating frequency using the SOURce[1|2]:SUM:INT:FREQ command. For internal sources only.

31. Use the SOURce[1|2]:SUM:AMPL command to set the modulating amplitude.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:SUM:STATe

Description

Turns SUM Modulation on or off. By default SUM modulation is off.

Source Specific Command

Note

Burst or sweep mode will be disabled if SUM modulation is enabled. As only one modulation is allowed at any one time, other modulation modes will be disabled when SUM modulation is enabled.

Syntax SOURce[1|2]:SUM:STATe {OFF|ON}

Example SOUR1:SUM:STAT ON

Enables SUM modulation

Query Syntax SOURce[1|2]:SUM:STATe?

Return Parameter

0 Disabled (OFF)

1 Enabled (ON)

Example SOUR1:SUM:STAT?

SUM modulation is currently enabled.

Source Specific

SOURce[1|2]:SUM:INTernal:FUNction

Description

Sets the shape of the modulating waveform from

Command

sine, square, triangle, upramp and dnramp. The default shape is sine.

Note

Square and triangle waveforms have a 50% duty cycle. Upramp and dnramp have a symmetry to 100% and 0%, respectively. .

Syntax SOURce[1|2]:SUM:INTernal:FUNction

{SINusoid|SQUare|TRIangle|UPRamp|DNRamp}

Example SOUR1:SUM:INT:FUN SIN

Sets the SUM modulating wave shape to sine.

AFG-200 SERIES USER MANUAL

Query Syntax SOURce[1|2]:SUM:INTernal:FUNction?

Return Parameter

SIN Sine UPRAMP Upramp

SQU Square DNRAMP Dnramp

TRI Triangle

Example SOUR1:SUM:INT:FUNC?

SIN

The shape for the modulating waveform is Sine.

Source Specific

SOURce[1|2]:SUM:INTernal:FREQuency

Description

Sets the modulating waveform frequency for

Command

internal sources. The default frequency is set to 100Hz.

Syntax SOURce[1|2]:SUM:INTernal:FREQuency

{<frequency>|MINimum|MAXimum}

Parameter <frequency> 2 mHz~ 20 kHz

Example SOUR1:SUM:INT:FREQ MAX

Sets the frequency to the maximum value.

Query Syntax SOURce[1|2]:SUM:INTernal:FREQuency?

Return Parameter

<NR3> Returns the frequency in

Hz.

Example SOUR1:SUM:INT:FREQ? MAX

+2.0000E+04

Returns the modulating frequency (20kHz).

SOURce[1|2]:SUM:AMPL

Description

Sets or queries the amplitude of the modulating waveform from the carrier waveform. The default phase amplitude is 50%.

Source Specific Command

AFG-200 SERIES USER MANUAL

Note

If an external SUM source is selected, the amplitude of the modulated waveform is controlled using the ±5V MOD INPUT terminal on the rear panel. A positive signal (>0~+5V) will increase the AMPLitude (up to the set amplitude), whilst a negative voltage will reduce the amplitude.

Syntax SOURce[1|2]:SUM:AMPL{< percent>|minimum

|maximum}

Parameter <percent> 0%~100%

Example SOUR1:SUM:AMPLitude +3.0000E+01

Sets the amplitude to 30%.

Query Syntax SOURce[1|2]:SUM:AMPLitude?

Return Parameter

<NR3> Returns the amplitude .

Example SOUR1:SUM:AMPLitude?

+3.0000E+01

The current amplitude is 30%.

AFG-200 SERIES USER MANUAL

Frequency Sweep Commands

Sweep Overview

Below shows the order in which commands must be executed to perform a sweep.

Enable Sweep

Mode

Select waveform

shape, amplitude

and offset

Select Sweep

Boundaries

Select Sweep

Mode

1. Turn on Sweep mode modulation using the SOURce[1|2]: SWE:STAT ON command.

2. Use the APPLy command to select the waveform shape. Alternatively, the FUNC, FREQ, AMPl, and DCOffs commands can be used to create a waveform with a designated frequency, amplitude and offset.

3. Set the frequency boundaries by setting start and stop frequencies or by setting a center frequency with a span.

Start~Stop

Span

4. Choose Linear or Logarithmic spacing using the SOURce[1|2]:SWE:SPAC command.

Use the SOURce[1|2]:FREQ:STAR and SOURce[1|2]:FREQ:STOP to set the start and stop frequencies. To sweep up or down, set the stop frequency higher or lower than the start frequency.

Use the SOURce[1|2]:FREQ:CENT and SOURce[1|2]:FREQ:SPAN commands to set the center frequency and the frequency span. To sweep up or down, set the span as positive or negative.

AFG-200 SERIES USER MANUAL

Select Sweep

Time

5. Choose the sweep time using the SOURce[1|2]:SWE:TIME command.

Select the sweep

trigger source

6. Select an internal or external sweep trigger source using the SOURce[1|2]:SOUR command.

Select the marker

frequency

7. To output a marker frequency from the trigger out, use The SOURce[1|2]:MARK:FREQ command. To enable marker frequency output, use the SOURce[1|2]:MARK ON command.

The marker frequency can be set to a value within the sweep span.

SOURce[1|2]:SWEep:STATe

Description

Note

Sets or disables Sweep mode. By default Sweep is disabled. Sweep modulation must be enabled before setting other parameters.

Any modulation modes or Burst mode will be disabled if sweep mode is enabled.

Source Specific Command

Syntax SOURce[1|2]:SWEep:STATe {OFF|ON}

Example SOUR1:SWE:STAT ON

Enables sweep mode.

Query Syntax SOURce[1|2]:SWEep:STATe?

Return Parameter

0 Disabled (OFF)

1 Enabled (ON)

Example SOUR1:SWE:STAT?

Sweep mode is currently enabled.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:FREQuency:STARt

Description

Sets the start frequency of the sweep. 100Hz is the default start frequency.

Source Specific Command

Note

To sweep up or down, set the stop frequency higher or lower than the start frequency.

Syntax SOURce[1|2]:FREQuency:STARt

{<frequency>|MINimum|MAXimum}

Parameter <frequency>

1μHz~ 25MHz

1μHz~ 15MHz(Square)

1μHz~ 1MHz (Ramp)

Example SOUR1:FREQ:STAR +2.0000E+03

Sets the start frequency to 2kHz.

Query Syntax SOURce[1|2]:FREQuency:STARt? [MINimum|

MAXimum]

Return Parameter

<NR3> Returns the start frequency

in Hz.

Example SOUR1:FREQ:STAR? MAX

+8.0000E+0

Returns the maximum start frequency allowed.

Source Specific

SOURce[1|2]:FREQuency:STOP

Description

Sets the stop frequency of the sweep. 1 kHz is the

Command

default start frequency.

Note

To sweep up or down, set the stop frequency higher or lower than the start frequency.

Syntax SOURce[1|2]:FREQuency:STOP

{<frequency>|MINimum|MAXimum}

AFG-200 SERIES USER MANUAL

Parameter <frequency>

1μHz~ 25MHz

1μHz~ 15MHz(Square)

1μHz~ 1MHz (Ramp)

Example SOUR1:FREQ:STOP +2.0000E+03

Sets the stop frequency to 2kHz.

Query Syntax SOURce[1|2]:FREQuency:STOP? [MINimum|

MAXimum]

Return Parameter

<NR3> Returns the stop frequency

in Hz.

Example SOUR1:FREQ:STOP? MAX

+8.0000E+00

Returns the maximum stop frequency allowed.

Source Specific

SOURce[1|2]:FREQuency:CENTer

Description

Sets and queries the center frequenc

Command

of the sweep.

550 Hz is the default center frequency.

Note

The maximum center frequency depends on the sweep span and maximum frequency:

max center freq = max freq – span/2

Syntax SOURce[1|2]:FREQuency:CENTer

{<frequency>|MINimum|MAXimum}

Parameter <frequency> 450Hz~ 25MHz

450Hz~ 15MHz(Square)

450Hz~ 1MHz (Ramp)

Example SOUR1:FREQ:CENT +2.0000E+03

Sets the center frequency to 2kHz.

Query Syntax SOURce[1|2]:FREQuency:CENTer? [MINimum|

MAXimum]

Return Parameter

<NR3> Returns the stop frequency

in Hz.

AFG-200 SERIES USER MANUAL

Example SOUR1:FREQ:CENT? MAX

+8.0000E+00

Returns the maximum center frequency allowed, depending on the span.

SOURce[1|2]:FREQuency:SPAN

Description

Note

Syntax SOURce[1|2]:FREQuency:SPAN

Parameter <frequency>

Example SOUR1:FREQ:SPAN +2.0000E+03

Sets and queries the frequency span of the sweep. 900 Hz is the default frequency span. The span frequency is equal to the stop-start frequencies.

To sweep up or down, set the span as positive or negative.

The maximum span frequency has a relationship to the center frequency and maximum frequency:

max freq span= 2(max freq – center freq)

{<frequency>|MINimum|MAXimum}

+/-1μHz~+/- 25MHz

+/-1μHz~+/-15MHz(Squa)

+/-1μHz~ +/-1MHz (Ramp)

Source Specific Command

Sets the frequency span to 2kHz.

Query Syntax SOURce[1|2]:FREQuency:SPAN? [MINimum|

MAXimum]

Return Parameter

<NR3> Returns the frequency

span in Hz.

Example SOUR1:FREQ:SPAN?

+2.0000E+03

Returns the frequency span for the current sweep.

AFG-200 SERIES USER MANUAL

Source Specific

SOURce[1|2]:SWEep:SPACing

Description

Sets linear or logarithmic sweep spacing. The

Command

default spacing is linear.

Syntax SOURce[1|2]:SWEep:SPACing {LINear|LOGarithmic}

Example SOUR1:SWE:SPAC LIN

Sets the spacing to linear.

Query Syntax SOURce[1|2]:SWEep:SPACing?

Return Parameter

LIN Linear spacing

LOG Logarithmic spacing

Example SOUR1:SWE:SPAC?

LIN

The spacing is currently set as linear.

Source Specific

SOURce[1|2]:SWEep:TIME

Description

Sets or queries the sweep time. The default sweep

Command

time is 1 second.

Note

The function generator automatically determines the number of frequency points that are used for the sweep based on the sweep time.

Syntax SOURce[1|2]:SWEep:TIME

{<seconds>|MINimum|MAXimum}

Parameter <seconds> 1 ms ~ 500 s

Example SOUR1:SWE:TIME +1.0000E+00

Sets the sweep time to 1 second.

Query Syntax SOURce[1|2]:SWEep:TIME? {<seconds>|

MINimum|MAXimum}

Return Parameter

<NR3> Returns sweep time in

seconds.

AFG-200 SERIES USER MANUAL

Example SOUR1:SWE:TIME?

+2.0000E+01

Returns the sweep time (20 seconds).

Source Specific

SOURce[1|2]:SWEep:SOURce

Description

Sets or queries the trigger source as immediate

Command

(internal)or manual. Immediate (internal) is the default trigger source. IMMediate will constantly output a swept waveform. Manual will ouput a swept waveform after the trigger softkey is pressed.

Note

If the APPLy command was used to create the waveform shape, the source is automatically set to IMMediate.

The *OPC/*OPC? command/query can be used to signal the end of the sweep.

Syntax SOURce[1|2]: SWEep:SOURce {IMMediate|MANual}

Example SOUR1: SWE:SOUR IMM

Sets the sweep source to immediate.

Query Syntax SOURce[1|2]: SWEep:SOURce?

Return Parameter

IMM Immediate

MANual Manual

Example SOUR1:SWE:SOUR?

IMM

The sweep source is set to immediate.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:MARKer:FREQuency

Description

Sets or queries the marker frequency. The default marker frequency is 550 Hz. The marker frequency is used to output a trigger out signal from the trigger terminal on the front panel.

Source Specific Command

Note

Syntax SOURce[1|2]:MARKer:FREQuency

Parameter <frequency>

Example SOUR1:MARK:FREQ +1.0000E+03

Query Syntax SOURce[1|2]:MARKer:FREQuency? [MINimum|

Return Parameter

Example SOUR1:MARK:FREQ? MAX

SOURce[1|2]:MARKer

The marker frequency must be between the start and stop frequencies. If the marker frequency is set to a value that is out of the range, the marker frequency will be set to the center frequency and a “settings conflict” error will be generated.

{<frequency>|MINimum|MAXimum}

1μHz ~ 25 MHz 1 μHz ~ 1 MHz (Ramp)

Sets the marker frequency to 1 kHz.

MAXimum]

<NR3> Returns the marker

frequency in Hz.

+1.0000E+03

Returns the marker frequency (1 kHz).

Source Specific Command

Description

AFG-200 SERIES USER MANUAL

Turns the marker frequency on or off. The default is off.

Note

Syntax SOURce[1|2]:MARKer {OFF|ON}

Example SOUR1:MARK ON

Query Syntax SOURce[1|2]:MARKer?

Return Parameter

1 Enabled

Example SOUR1:MARK?

MARKer ON

MARKer OFF The SYNC signal turn off

Enables the marker frequency.

0 Disabled

The marker frequency is enabled.

The SYNC signal goes logically high/low at the start of each sweep and goes low/high at the marker frequency.

AFG-200 SERIES USER MANUAL

Burst Mode Commands

Burst Mode Overview

Burst mode can be configured to use an internal trigger (N Cycle mode). Using N Cycle mode, each time the function generator receives a trigger, the function generator will output a specified number of waveform cycles (burst). After the burst, the function generator will wait for the next trigger before outputting another burst. N Cycle is the default Burst mode.

*assuming the Trigger polarity is not inverted.

The burst mode depends on the source of the trigger (internal, manual) and the source of the burst.

Function

Burst Mode & Source N Cycle* Cycle Phase

Triggered – IMMediate, BUS Available Available Available

Triggered - MANual Available Unused Available

Gated pulse - IMMediate Unused Unused Available

*burst count

AFG-200 SERIES USER MANUAL

The following is an overview of the steps required to generate a burst waveform.

Enable Burst

Mode

Configuration

Choose

Triggered/Gated

Mode

Set Burst Count

Set the burst

period

Set Burst Starting

Phase

Select the trigger

1. Turn on Burst mode using the SOURce[1|2]:BURS:STAT ON command.

2. Use the APPLy command to select a sine, square, ramp, pulse burst waveform*. Alternatively, the FUNC, FREQ, AMPl, and DCOffs commands can be used to create the burst waveform* with a desi

nated frequency,

amplitude and offset.

*2 mHz minimum for internally triggered bursts.

3. Use the SOURce[1|2]: BURS:MODE command to select from triggered or gated burst modes.

4. Use the SOURce[1|2]:BURS:NCYC command to set the burst count. This command is only for triggered burst mode only.

5. Use the SOURce[1|2]:BURS:INT:PER command to set the burst period/cycle. This command is only applicable for triggered burst mode (internal trigger).

6. Use the SOURce[1|2]:BURS:PHAS command to set the burst starting phase.

7. Use the SOURce[1|2]:BURS:TRIG:SOUR command to select the trigger source for triggered burst mode only.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:BURSt:STATe

Description

Turns burst mode on or off. By default burst mode is turned off.

Source Specific Command

Note

When burst mode is turned on, sweep and any modulation modes are disabled.

Syntax SOURce[1|2]:BURSt:STATe {OFF|ON}

Example SOUR1:BURS:STAT ON

Turns burst mode on.

Query Syntax SOURce[1|2]:BURSt:STATe?

Return Parameter

0 Disabled

1 Enabled

Example SOUR1:BURS:STAT?

Burst mode is off.

Source Specific

SOURce[1|2]:BURSt:MODE

Description

Sets or queries the burst mode is triggered. The

Command

default burst mode is triggered.

Syntax SOURce[1|2]:BURSt:MODE TRIGgered

Example SOUR1:BURS:MODE TRIG

Sets the burst mode to triggered.

Query Syntax SOURce[1|2]:BURSt:MODE?

Return Parameter

TRIG Triggered mode

Example SOUR1:BURS:MODE?

TRIG

The current burst mode is triggered.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:BURSt:NCYCles

Description

Sets or queries the number of cycles (burst count) in triggered burst mode. The default number of cycles is 1. The burst count is ignored in gated mode.

Source Specific Command

Note

If the trigger source is set to immediate, the product of the burst period and waveform frequency must be greater than the burst count:

Burst Period X Waveform frequency > burst count

If the burst count is too large, the burst period will automatically be increased and a “Settings conflict” error will be generated.

Only sine and square waves are allowed infinite burst above 15 MHz.

Syntax SOURce[1|2]:BURSt:NCYCles{< # cycles>

|INFinity|MINimum |MAXimum}

Parameter <# cycles> 1~65535 cycles.

INFinity Sets the number to continuous.

MINimum Sets the number to minimum allowed.

MAXimum Sets the number to maximum allowed.

Example SOUR1:BURS:NCYCl INF

Sets the number of burst cycles to continuous (infinite).

Query Syntax SOURce[1|2]:BURSt:NCYCles? [MINimum|MAXimum]

Return Parameter <NR3> Returns the number of cycles.

INF INF is returned if the number of cycles

is continuous.

Example SOUR1:BURS:NCYC?

+1.0000E+02

The burst cycles are set to 100.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:BURSt:INTernal:PERiod

Description

Sets or queries the burst period. Burst period settings are only applicable when the trigger is set to immediate. The default burst period is 10 ms.

During manual triggering, external triggering or Gate burst mode, the burst period settings are ignored.

Source Specific Command

Note

The burst period must be long enough to output the designated number of cycles for a selected frequency.

Burst period > burst count/(waveform frequency + 200 ns)

If the period is too short, it is automatically increased so that a burst can be continuously output. A “data out of range” error will also be generated.

Syntax SOURce[1|2]:BURSt:INTernal:PERiod

{<seconds>|MINimum|MAXimum}

Parameter <seconds > 1 ms ~ 500 seconds

Example SOUR1:BURS:INT:PER +1.0000E+01

Sets the period to 10 seconds.

Query Syntax SOURce[1|2]:BURSt:INTernal:PERiod?

[MINimum|MAXimum]

Return Parameter

<NR3> Returns the burst period in seconds.

Example SOUR1:BURS:INT:PER?

+1.0000E+01

The burst period is 10 seconds.

Source Specific

SOURce[1|2]:BURSt:PHASe

Command

AFG-200 SERIES USER MANUAL

Description

Sets or queries the starting phase for the burst. The default phase is 0 degrees. At 0 degrees, sine square and ramp waveforms are at 0 volts.

In gated burst mode, waveforms are continuously output (burst) when the Trig signal is true. The voltage level at the starting phase is used to determine the voltage level of the signal in-between bursts.

Note

The phase command is not used with pulse waveforms.

Syntax SOURce[1|2]:BURSt:PHASe

{<angle>|MINimum|MAXimum}

Parameter <angle> -360 ~ 360 degrees

Example SOUR1:BURS:PHAS MAX

Sets the phase to 360 degrees.

Query Syntax SOURce[1|2]:BURSt:PHASe? [MINimum|MAXimum]

Return Parameter

<NR3> Returns the phase angle in degrees.

Example SOUR1:BURS:PHAS?

+1.2000E+02

The burst phase is 120 degrees.

SOURce[1|2]:BURSt:TRIGger:SOURce

Description

Sets or queries the trigger source for triggered burst mode. In trigged burst mode, a waveform burst is output each time a trigger signal is received and the number of cycles is determined by the burst count.

There are three trigger sources for triggered burst mode:

Immediate A burst is output at a set

frequency determined by the burst period.

Source Specific Command

AFG-200 SERIES USER MANUAL

Manual Manual triggering will output a

burst waveform after the trigger softkey is pressed.

Note

If the APPLy command was used, the source is automatically set to IMMediate.

The *OPC/*OPC? command/query can be used to signal the end of the burst.

Syntax SOURce[1|2]:BURSt:TRIGger:SOURce

{IMMediate|MANual}

Example SOUR1:BURS:TRIG:SOUR IMM

Sets the burst trigger source to immediate.

Query Syntax SOURce[1|2]:BURSt:TRIGger:SOURce?

Return Parameter

IMM Immediate

MANual Manual

Example SOUR1:BURS:TRIG:SOUR?

IMM

The burst trigger source is set to immediate.

Source Specific

SOURce[1|2]:BURSt:TRIGger:DELay

Description

The DELay command is used to insert a delay (in

Command

seconds) before a burst is output. The delay starts after a trigger is received. The default delay is 0 seconds.

Syntax SOURce[1|2]: BURSt:TRIGger:DELay

{<seconds>|MINimum|MAXimum}

Parameter <seconds> 0~655350 nS

Example SOUR1:BURS:TRIG:DEL +1.0000E+01

Sets the trigger delay to 10 seconds.

Query Syntax SOURce[1|2]:BURSt:TRIGger:DELay?

[MINimum|MAXimum]

AFG-200 SERIES USER MANUAL

Return Parameter

<NRf> Delay in seconds

Example SOUR1:BURS:TRIG:DEL ?

+1.0000E+01

The trigger delay is 10 seconds.

Source Specific

SOURce[1|2]:BURSt:TRIGger:SLOPe

Description

Sets or queries the trigger edge for externally

Command

triggered bursts from the Trigger INPUT terminal on the rear panel. By default the trigger is rising edge (Positive).

Syntax SOURce[1|2]:BURSt:TRIGger:SLOPe

{POSitive|NEGative}

Parameter POSitive rising edge

NEGative falling edge

Example SOUR1:BURS:TRIG:SLOP NEG

Sets the trigger slope to negative.

Query Syntax SOURce[1|2]:BURSt:TRIGger:SLOPe?

Return Parameter

POS rising edge

NEG falling edge

Example SOUR1:BURS:TRIG:SLOP ?

NEG

The trigger slope is negative.

Source Specific

SOURce[1|2]:BURSt:GATE:POLarity

Description

In gated mode, the function generator will output

Command

a waveform continuously while the external trigger receives logically true signal from the Trigger INPUT terminal. Normally a signal is logically true when it is high. The logical level can be inverted so that a low signal is considered true.

AFG-200 SERIES USER MANUAL

Syntax SOURce[1|2]:BURSt:GATE:POLarity

{NORMal|INVertes}

Parameter NORMal Logically high

INVertes Logically low

Example SOUR1:BURS:GATE:POL INV

Query Syntax SOURce[1|2]:BURSt:GATE:POLarity?

Return Parameter

INV Inverted (low) logical level

Example SOUR1:BURS:GATE:POL?

SOURce[1|2]:BURSt:OUTPut:TRIGger:SLOPe

Description

Sets the state to logically low (inverted).

NORM Normal(High) logical level

INV

The true state is inverted(logically low).

Source Specific Command

Sets or queries the trigger edge of the trigger output signal. The signal is output from the trigger out terminal on the rear panel. The default trigger output slope is positive.

Immediate 50% duty cycle square wave is

output at the start of each burst.

External Trigger output disabled.

Gated mode Trigger output disabled.

Manual A >1 ms pulse is output at the

start of each burst.

Syntax SOURce[1|2]:BURSt:OUTPut:TRIGger:SLOPe

{POSitive|NEGative}

Parameter POSitive Rising edge.

NEGative Falling edge.

Example SOUR1:BURS:OUTP:TRIG:SLOP POS

AFG-200 SERIES USER MANUAL

Query Syntax SOURce[1|2]:BURSt:OUTPut:TRIGger:SLOPe?

Return Parameter

NEG Falling edge.

Example SOUR1:BURS:OUTP:TRIG:SLOP?

SOURce[1|2]:BURSt:OUTPut[1|2]:TRIGger

Description Sets or queries the trigger output signal on or off.

Syntax

Parameter

Example

Turns the output on.

Query Syntax

Return

Parameter

Query Example

The trigger output is enabled.

Sets the trigger output signal slope to positive (rising edge).

POS Rising edge.

POS

The trigger output signal slope to positive.

Source Specific Command

By default the signal is disabled. When enabled, a

TTL compatible square wave is output.

SOURce[1|2]:BURSt:OUTPut[1|2]:TRIGger {OFF|ON}

OFF

SOURce[1|2]:BURSt:OUTP1:TRIG ON

SOURce[1|2]:BURSt:OUTPut[1|2]:TRIGger?

SOURce[1|2]:BURSt:OUTP1:TRIG?

Turns the output off.

Turns the output on.

Disabled

Enabled

AFG-200 SERIES USER MANUAL

Arbitrary Waveform Commands

Arbitrary Waveform Overview

Use the steps below to output an arbitrary waveform over the remote interface.

Output Arbitrary

Wavef orm

Select Waveform

Frequency,

amplitude and

offset

Load Waveform

Data

Set Waveform

Rate

1. Use the SOURce[1|2]:FUNCtion USER command to output the arbitrary waveform currently selected in memory.

2. Use the APPLy command to select frequency, amplitude and DC offset. Alternatively, the FUNC, FREQ, AMPl, and DCOffs commands can be used.

3. Waveform data (1 to 4096 points per waveform) can be downloaded into volatile memory using the DATA:DAC command. Binary integer or decimal integer values in the range of ± 511 can be used.

4. The waveform rate is the product of the number of points in the waveform and the waveform frequency.

Rate = Hz × # points Range:

Rate: 120MHz Frequency: 60MHz # points: 1~4096

AFG-200 SERIES USER MANUAL

SOURce[1|2]:FUNCtion USER

Description

Syntax SOURce[1|2]:FUNCtion USER

Example SOUR1:FUNC USER

Use the SOURce[1|2]:FUNCtion USER command to output the arbitrary waveform currently selected in memory. The waveform is output with the current frequency, amplitude and offset settings.

Source Specific Command

Selects and outputs the current waveform in memory.

SOURce[1|2]:DATA:DAC

Description

Note

The SOURce[1|2]:DATA:DAC command is used to download binary or decimal integer values into memory using the IEEE-488.2 binary block format or as an ordered list of values.

The integer values (±511) correspond to the maximum and minimum peak amplitudes of the waveform. For instance, for a waveform with an amplitude of 5Vpp (0 offset), the value 511is the equivalent of 2.5 Volts. If the integer values do not span the full output range, the peak amplitude will be limited.

The IEEE-488.2 binary block format is comprised of three parts:

1 3

Source Specific Command

1. Initialization character (#)

2. Digit length (in ASCII) of the number of bytes

3. Number of bytes

IEEE 488.2 uses two bytes to represent waveform

AFG-200 SERIES USER MANUAL

data (16 bit integer). Therefore the number of bytes is always twice the number of data points.

Syntax

SOURce[1|2]:DATA:DAC VOLATILE, <start>，{<binary block>|<value>, <value>, . . . }

Parameter <start> Start address of the

arbitrary waveform

<value> Decimal or integer values

±511

Example SOURce[1|2]:DATA:DAC VOLATILE, #210 Binary Data

The command above downloads 5 data values (stored in 16 bytes) using the binary block format.

SOURce[1|2]:DATA:DAC VOLATILE, 1000, 511, 200, 0,

-200, -511

Downloads the data values (511, 200, 0, -200, -511) to address 1000.

Source Specific

SOURce[1|2]:ARB:EDIT:COPY

Description

Copies a segment of a waveform to a specific

Command

starting address.

Syntax SOURce[1|2]:ARB:EDIT:COPY

[<start>[,<length>[,<paste>]]]

Parameter <start> Start address: 0~4095

<length> 1 ~ 4096

<paste> Paste address: 0~4095

Example SOUR1:ARB:EDIT:COPY 1000, 256, 1257

Copies 256 data values starting at address 1000 and copies them to address 1257.

AFG-200 SERIES USER MANUAL

SOURce[1|2]:ARB:EDIT:DELete

Description

Deletes a segment of a waveform from memory. The segment is defined by a starting address and length.

Source Specific Command

Note

A waveform/waveform segment cannot be deleted when output.

Syntax SOURce[1|2]:ARB:EDIT:DELete [<STARt>[,<LENGth>]]

Parameter <STARt> Start address: 0~4095

<LENGth> 1 ~ 4096

Example SOURce1:ARB:EDIT:DEL 1000, 256

Deletes a section of 256 data points from the waveform starting at address 1000.

Source Specific

SOURce[1|2]:ARB:EDIT:DELete:ALL

Description

Deletes all user-defined waveforms from

Command

non-volatile memory and the current waveform in volatile memory.

Note

A waveform cannot be deleted when output.

Syntax SOURce[1|2]:ARB:EDIT:DELete:ALL

Example SOUR1:ARB:EDIT:DEL:ALL

Deletes all user waveforms from memory.

Source Specific

SOURce[1|2]:ARB:EDIT:POINt

Description

Edit a point on the arbitrary waveform.

Command

Note

A waveform/waveform segment cannot be deleted when output.

Syntax SOURce[1|2]:ARB:EDIT:POINt [<address> [, <data>]]

AFG-200 SERIES USER MANUAL

Parameter <address> Address of data point:

0~4095

<data> Value data: ± 511

Example SOUR1:ARB:EDIT:POIN 1000, 511

Creates a point on the arbitrary waveform at address 1000 with the highest amplitude.

Source Specific

SOURce[1|2]:ARB:EDIT:LINE

Description

Edit a line on the arbitrary waveform. The line is

Command

created with a starting address and data point and a finishing address and data point.

Note

A waveform/waveform segment cannot be deleted when output.

Syntax SOURce[1|2]:ARB:EDIT:LINE

[<address1>[,<data>[,<address2>[,<data2>]]]]

Parameter <addrress1> Address of data point1:

0~4095

<data1> Value data2: ± 511

<address2> Address of data point2:

0~4095

<data2> Value data2: ± 511

Example SOUR1:ARB:EDIT:LINE 40, 50, 100, 50

Creates a line on the arbitrary waveform at 40,50 to 100,50.

Source Specific

SOURce[1|2]:ARB:EDIT:PROTect

Description

Protects a segment of the arbitrary waveform from

Command

deletion or editing.

Syntax SOURce[1|2]:ARB:EDIT:PROTect

[<STARt>[,<LENGth>]

Parameter <STARt> Start address: 0~4095

AFG-200 SERIES USER MANUAL

<LENGth> 1 ~ 4096

Example SOUR1:ARB:EDIT:PROT 40, 50

Protects a segment of the waveform from address 40 for 50 data points.

Source Specific

SOURce[1|2]:ARB:EDIT:PROTect:ALL

Description

Protects the arbitrary waveform currently in

Command

non-volatile memory/ currently being output.

Syntax SOURce[1|2]:ARB:EDIT:PROTect:ALL

Example SOUR1:ARB:EDIT:PROT:ALL

Source Specific

SOURce[1|2]:ARB:EDIT:UNProtect

Description

Uprotects the arbitrary waveform currently in

Command

non-volatile memory/currently being output.

Syntax SOURce[1|2]:ARB:EDIT:UNProtect

Example SOUR1:ARB:EDIT:UNP

Source Specific

SOURce[1|2]:ARB:OUTPut

Description

Output the current arbitrary waveform in volatile

Command

memory. A specified start and length can also be designated.

Syntax SOURce[1|2]:ARB:OUTPut [<STARt>[,<LENGth>]]

Parameter <STARt> Start address*: 0~4096

<LENGth> Length*: 0 ~ 4096

* Start + Length ≤ currently output arbitrary waveform

Example SOUR1:ARB:OUTP 20,200

Outputs the current arbitrary waveform in memory.

AFG-200 SERIES USER MANUAL

Phase

The phase command remotely controls the phase and channel synchronization.

Instrument

SOURce[1|2]:PHASe

Description

Syntax SOURce[1|2]:PHASe {<phase>|<MIN>|<MAX>}

Sets the phase.

Command

Parameter

Example SOURce1:PHASe 25

Query Syntax SOURce[1|2]:PHASe? {MAX|MIN}

Return Parameter

Example SOURce1:PHASe?

SOURce[1|2]:PHASe:SYNChronize

Description Sychronizes the phase of channel 1 and channel 2.

Syntax

Example

Synchronizes the phase of channel 1 and channel 2.

phase -180~180

min Sets the phase to the minimum

value.

max Sets the phase to the maxium

value.

Sets the phase of channel 1 to 25°.

phase Returns the current phase.

Returns the phase of channel 1 as 26°.

Instrument Command

SOURce1 or SOURce2 has not effect on this command.

SOURce[1|2]:PHASe:SYNChronize

SOURce1:PHASe:SYNChronize

AFG-200 SERIES USER MANUAL

Couple

The Couple commands can be used to remotely set the frequency coupling and amplitude coupling.

Instrument

SOURce[1|2]:FREQuency:COUPle:MODE

Description

Syntax SOURce[1|2]:FREQuency:COUPle:MODE

Example SOURce1:FREQuency:COUPle:MODE Offset

Set the frequency coupling mode.

{Off|Offset|Ratio}

Command

Query Syntax

Ratio Sets frequency coupling to ratio mode.

Example

SOURce[1|2]:FREQuency:COUPle:OFFSet

Description

Syntax SOURce[1|2]:FREQuency:COUPle:OFFSet {frequency}

Example SOURce1:FREQuency:COUPle:OFFSet 2khz

Syntax SOURce[1|2]:FREQuency:COUPle:OFFSet?

Example SOURce1:FREQuency:COUPle:OFFSet?

Sets the frequency coupling mode to offset.

SOURce[1|2]:FREQuency:COUPle:MODE？

Off Disables frequency coupling. Return Parameter

Offset Set frequency coupling to offset mode.

SOURce1:FREQuency:COUPle:MODE？

Off

Frequency coupling is turned off.

Instrument Command

Sets the offset frequency when the frequency coupling mode is set to offset.

Sets the offset frequency to 2kHz (the frequency of CH2 minus CH1 is 2kHz).

+2.0000E+03

AFG-200 SERIES USER MANUAL

The offset of channel 2 from channel 1 is 2kHz.

Instrument

SOURce[1|2]:FREQuency:COUPle:RATio

Description

Sets the frequency coupling ratio when frequency

Command

coupling is set to ratio mode.

Syntax SOURce[1|2]:FREQuency:COUPle:RATio {ratio}

Example SOURce1:FREQuency:COUPle:RATio 2

Set the CH2 to CH1 frequency ratio to 2.

Query Syntax SOURce[1|2]:FREQuency:COUPle:RATio?

Example SOURce1:FREQuency:COUPle:RATio?

+2.0000E+00

Returns the CH2 to CH1 frequency ratio as 2.

Instrument

SOURce[1|2]:AMPlitude:COUPle:STATe

Description

Syntax

Enables or disables the amplitude coupling.

SOURce[1|2]:AMPlitude:COUPle:STATe

Command

{ON|Off}

Example SOURce1:AMPlitude:COUPle:STATe on

Description

Turns amplitude coupling on.

Query Syntax SOURce[1|2]:AMPlitude:COUPle:STATe?

Return Parameter

Off

Example SOURce1:AMPlitude:COUPle:STATe?

Amplitude coupling has been enabled.

Instrument

SOURce[1|2]:TRACk

Command

AFG-200 SERIES USER MANUAL

Description

Turns tracking on or off.

Syntax SOURce[1|2]:TRACk {ON|OFF|INVerted}

Example SOURce1:TRACk ON

Turns tracking on. Channel 2 will “track” the changes of channel 1.

Query Syntax SOURce[1|2]:TRACk?

Return Parameter

INV

OFF

INVerted

Example SOURce1:TRACk?

Channel tracking is turned on.

AFG-200 SERIES USER MANUAL

Sync

A sync output is provided on the front panel SYNC port. All of the standard output functions (except noise) have an associated Sync signal. For Applications where you may not want to output the Sync signal, you can disable the sync connector. The Sync signal may be derived from either output channel in a two-channel instrument. By default the Sync signal is derived from Channel 1.

Instrument

OUTPut:SYNC

Description

Syntax OUTPut:SYNC {OFF|ON}

Example OUTPut:SYNC ON

Enables/Disables or queries the front panel Sync output from the selected channel. The default is set to off.

Command

Query Syntax OUTPut:SYNC?

Return Parameter

0 OFF

Example OUTPut:SYNC?

OUTPut[1|2]:SYNC:MODE

Description

Syntax OUTPut[1|2]:SYNC:MODE {CARRier|MARKer}

Example OUTP1:SYNC:MODE CARR

Turns the Sync output on.

1 ON

The Sync output is on.

Instrument Command

This command is able to set the Sync output signal in a different mode.

Synchronizes the Sync output to the carrier signal

AFG-200 SERIES USER MANUAL

Query Syntax OUTPut[1|2]:SYNC:MODE?

Return Parameter CARR

The output is synchronized with the carrier.

MARK

For scan, pulse, and arbitrary waveforms the marker signal is output from the Sync output.

Example OUTP1:SYNC:MODE?

CARR

Indicates that the Sync output signal is synchronized

to the carrier signal.

Instrument

OUTPut[1|2]:SYNC:POLarity

Description

This command controls the Sync signal output

Command

polarity.

Note

The normal Sync signal polarity is from a TTL low to high level. The inverted Sync signal polarity is from a TTL high to low level.

Syntax OUTPut[1|2]:SYNC:POLarity{INVerted|NORMal}

Example OUTP1:SYNC:POLarity INV

Sets the Sync output signal polarity to inverted.

Query Syntax OUTPut[1|2]:SYNC:POL?

Return Parameter

INV

NORM

Example OUTP1:SYNC:POL?

INV

Indicates that the output Sync signal for CH1 is inverted.

100

Inverted

Normal

GW Instek AFG-125, AFG-225, AFG-125P, AFG-225P User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY INSTRUCTIONS

Safety Symbols

Safety Guidelines

GETTING STARTED

Main Features

Panel Overview

Front Panel

Rear Panel

System Requirements

Software Installation

Setup the Signal Generator

Default Settings

Establishing a Remote Connection

Configure USB interface

Remote control terminal connection

Command Syntax

System Command

SYSTem:ERRor?

*IDN?

*RST

SYSTem:VERSion?

Status Register Commands

Amplitude Modulation (AM) Commands

SOURce[1|2]:AM:INTernal:FUNCtion

SOURce[1|2]:AM:INTernal:FREQuency

Frequency Modulation (FM) Commands

SOURce[1|2]:FM:INTernal:FUNCtion

SOURce[1|2]:FM:INTernal:FREQuency

Frequency-Shift Keying (FSK) Commands

Phase Modulation (PM)Commands

SOURce[1|2]:PM:INTernal:FUNction

SUM Modulation (SUM) Commands

SOURce[1|2]:SUM:INTernal:FUNction

Frequency Sweep Commands

Burst Mode Commands

Arbitrary Waveform Commands

SOURce[1|2]:ARB:EDIT:DELete:ALL