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Introduction to ProgrammingChapters 1 and 2 introduce the basics for remote programming of anoscilloscope. The programming instructions in this manual

Talking to the InstrumentComputers acting as controllers communicate with the instrument bysending and receiving messages over a remote interface. Ins

Program Message SyntaxTo program the instrument remotely, you must understand the commandformat and structure expected by the instrument. The IEEE 488

InstructionsInstructions (both commands and queries) normally appear as a stringembedded in a statement of your host language, such as BASIC, Pascal,

Header TypesThere are three types of headers:Simple Command headers.Compound Command headers.Common Command headers.Simple Command Header Simple comma

Combining Commands from the Same SubsystemTo execute more than one function within the same subsystem a semi-colon(;) is used to separate the function

Query CommandCommand headers immediately followed by a question mark (?) are queries.After receiving a query, the instrument interrogates the requeste

Program Header OptionsProgram headers can be sent using any combination of uppercase orlowercase ASCII characters. Instrument responses, however, are

Program Data Syntax RulesProgram data is used to convey a variety of types of parameter informationrelated to the command header. At least one space m

Programmer’s GuidePublication number 54600-97032April 2001This guide contains programming information for the following Agilent oscilloscope models:54

All numbers are expected to be strings of ASCII characters. Thus, whensending the number 9, you would send a byte representing the ASCII code forthe c

Program Message TerminatorThe program instructions within a data message are executed after theprogram message terminator is received. The terminator

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Programming Getting Started This chapter explains how to set up the instrument, how to retrievesetup information and measurement results, how to digit

InitializationTo make sure the bus and all appropriate interfaces are in a known state,begin every program with an initialization statement. Agilent B

AutoscaleThe AUTOSCALE feature performs a very useful function on unknownwaveforms by setting up the vertical channel, time base, and trigger level of

Example ProgramThis program demonstrates the basic command structure used to programthe oscilloscope.10 CLEAR 707 ! Initialize instrument interface20

Using the DIGitize CommandThe DIGitize command is a macro that captures data satisfying thespecifications set up by the ACQuire subsystem. When the di

The following program example shows a typical setup:OUTPUT 707;":ACQUIRE:TYPE AVERAGE"<terminator>OUTPUT 707;":ACQUIRE:COMPLETE 1

Receiving Information from the InstrumentAfter receiving a query (command header followed by a question mark), theinstrument interrogates the requeste

Programming the OscilloscopeWhen you attach an interface module to the rear of the Agilent 54600-Series Oscilloscopes, the oscilloscope becomes progra

String VariablesThe output of the instrument may be numeric or character data dependingon what is queried. Refer to the specific commands for the form

Numeric VariablesThe following example shows the data being returned to a numeric variable:10 OUTPUT 707;":CHANNEL1:RANGE?"20 ENTER 707;Rang

Definite-Length Block Response DataDefinite-length block response data allows any type of device-dependent datato be transmitted over the system inter

Multiple QueriesYou can send multiple queries to the instrument within a single programmessage, but you must also read them back within a single progr

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Programming over GPIB This section describes the GPIB interface functions and some generalconcepts. In general, these functions are defined by IEEE 48

Interface CapabilitiesThe interface capabilities of the oscilloscope, as defined by IEEE 488.1, areSH1, AH1, T5, L4, SR1, RL1, PP0, DC1, DT1, C0, and

AddressingSet the instrument address by using the front panel controls on theoscilloscope after the GPIB interface has been installed on the rear pane

Communicating over the busSince GPIB can address multiple devices through the same interface card,the device address passed with the program message m

LockoutYou can use the SYSTem:LOCK ON command to disable front-panel controlwhile a program is running. By default, the instrument accepts and execute

CaptureOnce you initialize the oscilloscope, you can begin capturing data formeasurement. Remember that while the oscilloscope is responding tocommand

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Programming over RS-232-CThis section describes the interface functions and some generalconcepts of the RS-232-C. The RS-232-C interface on this instr

Interface OperationThe oscilloscope can be programmed with a controller over RS-232-C usingeither a minimum three-wire or extended hardwire interface.

Minimum three-wire interface with software protocolWith a three-wire interface, the software (as compared to interfacehardware) controls the data flow

Extended interface with hardware handshakeWith the extended interface, both the software and the hardware can controlthe data flow between the oscillo

The TD (Transmit Data) line from the oscilloscope must connect to the RD(Receive Data) line on the controller. Likewise, the RD line from theoscillosc

Configuring the InterfaceSet the baud rate and handshake protocol by using the front panel controlson the oscilloscope after the RS-232-C interface ha

Interface CapabilitiesThe baud rate, stop bits, parity, handshake protocol, and data bits must beconfigured exactly the same for both the controller a

Data BitsData bits are the number of bits sent and received per character thatrepresent the binary code of that character. Information is stored in by

Lockout CommandTo lockout the front panel controls use the system command LOCK. Whenthis function is on, all controls (except the power switch) are en

In This BookThe Agilent 54600-Series Oscilloscopes Programmer’s Guide is yourintroduction to programming the Agilent 54600-Series Oscilloscopes using

5Programming and DocumentationConventionsArtisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Programming and DocumentationConventionsThis chapter covers conventions which are used in programming theinstrument, as well as conventions used in th

Command Set OrganizationThe command set is divided into common commands, root level commandsand sets of subsystem commands. Each of the groups of comm

Table 5-1Alphabetic Command Cross-ReferenceCommand SubsystemWhere UsedCommand SubsystemWhere UsedCommand SubsystemWhere UsedALLASToreAUToscaleBLANkBWL

Command SubsystemWhere UsedCommand SubsystemWhere UsedCommand SubsystemWhere UsedRANGeRANGeRANGe*RCLREFerenceREFerenceREJectRESetRISetimeROW*RSTRUN*SA

The Command TreeThe command tree shows all of the commands and the relationship of thecommands to each other. The IEEE 488.2 common commands are not l

TDELtaTHREsholdsTSTArtTSTOpTVOLtUPPerVAMPlitudeVAVerageVBASeVDELtaVMAXVMINVPPVPSTArtVPSTOpVRMSVSTArt54600S13.CDRTIMebaseDELayMODERANGeREFerenceSETupVE

Subsystem CommandsSubsystem commands are grouped together under a common node of thecommand tree, such as the TIMEBASE commands. Only one subsystem ma

ExamplesThe OUTPUT statements in the examples are written using Agilent BASIC5.0. The quoted string is placed on the bus, followed by a carriage retur

Truncation RulesThe truncation rule for the mnemonics used in headers and alpha argumentsis:The mnemonic is the first four characters of the keyword

For information on oscilloscopeoperation, see the Agilent 54600-SeriesOscilloscopes User and Service Guide.For information on interfaceconfiguration,

Infinity RepresentationThe representation of infinity is 9.9E+37. This is also the value returnedwhen a measurement cannot be made.Sequential and Over

Notation Conventions and DefinitionsThe following conventions and definitions are used in this manual and theonline Agilent 54600-Series Oscilloscopes

Program ExamplesThe program examples given for commands in the onlineAgilent 54600-Series Oscilloscopes Programmer’s Reference were writtenusing the A

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Status ReportingIEEE 488.2 defines data structures, commands, and common bitdefinitions for status reporting on the interface. There are alsoinstrumen

Status Reporting Data StructuresFigure 6–1Status Reporting6–3Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www

Bit DefinitionsMAV - message available. Indicates whether there is a response in theoutput queue.ESB - event status bit. Indicates if any of the condi

Operation Complete (*OPC)The IEEE 488.2 structure provides one technique which can be used to findout if any operation is finished. The *OPC command,

Serial PollThis oscilloscope supports the IEEE 488.1 serial poll feature. When a serialpoll of the instrument is requested, the RQS bit is returned on

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After the serial poll is completed, the RQS bit in the oscilloscope Status ByteRegister is reset if it was set. Once a bit in the Status Byte Register

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7Installing and Using theProgrammer’s ReferenceArtisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Installing and Using the Programmer’sReferenceThe Programmer’s Reference is supplied as an online help filereadable with the Microsoft Windows help vi

To install the help file under Microsoft WindowsThe help file requires Microsoft Windows 95/98/NT running on anIBM-compatible PC. The file uses the Mi

To get updated help and program files via the InternetThe latest versions of the help and example program files are available viathe internet using yo

To start the help fileTo open the help file under Microsoft Windows, double-click the“Programmer’s Reference” icon in the “Agilent 54600-SeriesOscillo

To navigate through the help fileNavigate through the help file by clicking on highlighted text andbuttons.See your Microsoft Windows documentation fo

8Programmer’s Quick ReferenceArtisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

IntroductionThe Programmer’s Quick Reference provides the commands andqueries with their corresponding arguments and returned formats forthe Agilent 5

Contents1 Introduction to Programming Talking to the Instrument 1–3Program Message Syntax 1–4Combining Commands from the Same Subsystem 1–7Duplicat

ConventionsThe following conventions used in this guide include:< > Indicates that words or characters enclosed in angularbrackets symbolize a p

Commands and QueriesThe following tables facilitate easy access to each command and query forthe Agilent 54600-Series Oscilloscopes. The commands and

Command Query Options and Query Returns:ACQuire:COMPlete <complete_argument>:ACQuire:COMPlete? <complete_argument> ::= 0 to 100; an integ

Command Query Options and Query Returns:CHANnel<n>:PROBe <attenuation>:CHANnel<n>:PROBe? <attenuation> ::= X1, X10, X100 for

Command Query Options and Query Returns:DISPlay:GRID {ON | OFF | SIMPle | TV}:DISPlay:GRID? {ON | OFF | SIMPle | TV}:DISPlay:INVerse {ON | OFF}:DISP

Command Query Options and Query Returnsn/a :DISPlay:SETup? :DISPlay:ROW <row_number>; <row_number> ::= 1...20; an integer in NR1 formatCOL

Command Query Options and Query Returnsn/a :EXTernal:SETup? For the 54610:EXTernal:OFFSet <offset_value>; COUPling {DC | AC | GND}; PROBe {X1 |

Command Query Options and Query Returnsn/a *IDN? HEWLETT-PACKARD,<model>, 0, X.X<model> ::= the model number of the instrument<X.X>

Command Query Options and Query Returns:MEASure:FALLtime :MEASure:FALLtime? <return_value> ::= time in seconds between the 10% and 90% voltagele

Command Query Options and Query Returns:MEASure:UPPer <voltage>:MEASure:UPPer? <voltage> ::= the user-defined upper threshold in volts in

Minimum three-wire interface with software protocol 4–4Extended interface with hardware handshake 4–5Configuring the Interface 4–7Interface Capabil

Command Query Options and Query Returns:MENU <integer>:MENU? <integer> ::= the following:Menu NumberNo menu selected 0Channel 1 1Channel

Command Query Options and Query Returns:SEQuence:SETup {MASK | STEP}, <number>, <header> <setup_string>:SEQuence:SETup?{MASK | STEP

Command Query Options and Query Returns:STOP n/a n/a:SYSTem:DSP <string>n/a <string> ::= quoted ASCII stringn/a :SYSTem:ERRor? <error&g

Command Query Options and Query Returns:TRACe:MODE <N> {ON | OFF}:TRACe:MODE? <N> <N> ::= 1 to 100<return_state> ::= {ON | OFF

Command Query Options and Query Returns:TRIGger:SOURce <source>:TRIGger:SOURce? <source> ::= {CHANnel1 | CHANnel2 | EXTernal | LINE} for 5

Command Query Options and Query Returnsn/a :WAVeform:PREamble? <preamble_block> ::= <format NR1>, <type NR1>, <points NR1>, &

IndexAAddressing, 3–4 to 3–5alpha argument, 5–10Arguments, 1–5BBASIC, 1–3Baud rate, 4–7 to 4–8Block data, 1–5, 2–11CCableRS-232-C, 4–3carriage return,

OOPC - operation complete, 6–4Operation Complete, 6–5Output command, 1–4OUTPUT statement, 1–3Overlapped Commands, 5–11PParallel Poll, 6–6Parameters, 1

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