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Agilent Technologies 665xA Examples, controlled GPIB interfaces, Listening Formats, Class, Suffix

Models: 668xA 669xA 667xA 664xA 665xA

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Listening Formats

	Listening Formats
<NRf>	Extended format that includes <NR1>, <NR2> and <NR3>. Examples: 273 273.
	2.73E2
<NRf+>	Expanded decimal format that includes <NRf>, MIN and MAX. Examples: 273
	273. 2.73E2 MAX. MIN and MAX are the minimum and maximum limit values
	that are implicit in the range specification for the parameter.

Table 2-2. Suffixes and Multipliers

Class	Suffix	Unit	Unit with Multiplier
Current	A	Ampere	MA (milliampere)
Amplitude	V	Volt	MV (millivolt)
Time	S	second	MS (millisecond)
		Common Multipliers
	lE3	K	kilo
	1E-3	M	milli
	1E-6	U	micro

Boolean Data

Either form {10} or {ONOFF} may be sent with commands. Queries always return 1 or 0.

OUTPut OFF

CURRent:PROTection 1

Character Data

For query statements, character strings may be returned in either of the forms shown in Table 2-3, depending on the length of the returned string.

	Table 2-3. Character Data Formats
<CRD>	Character Response Data. Permits the return of character strings.
<AARD>	Arbitrary ASCII Response Data. Permits the return of undelimited 7-bit ASCII. This data type has
	an implied message terminator.
Note:	The IEEE 488.2 format for a string parameter requires that the string be enclosed within either single
	(' ') or double (" ") quotes. Be certain that your program statements comply with this requirement.

Examples

The examples given here are generic, without regard to the programming language or type of GPIB interface. Because SCPI commands are sent as ASCII output strings within the programming language statements, the SCPI syntax is independent of both programming language and interface.

Note	The examples are followed by sample program code written for three popular types of BASIC-
	controlled GPIB interfaces.

Remote Programming 15

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Agilent Technologies 665xA Examples, controlled GPIB interfaces, Listening Formats, 2. Suffixes and Multipliers, Class

Contents

Microfiche Part No PROGRAMMING GUIDE GPIB DC POWER SUPPLIESAgilent Technologies Models 664xA, 665xA, 667xA, 668xA, and 669xA Agilent Part NoPrinting History Safety GuidelinesLANGUAGE DICTIONARY ContentsGENERAL INFORMATION REMOTE PROGRAMMINGDisplay Subsystem Description of Subsystem CommandsSystem Commands Current SubsystemCOMPATIBILITY LANGUAGE ERROR MESSAGESSTATUS REPORTING SCPI CONFORMANCE INFORMATIONPage User’s Guide General InformationAbout this Guide Documentation SummaryAccessing Online Help Prerequisites for Using this GuideVXIplug&play Power Product Instrument Drivers Downloading and Installing the DriverConventions GPIB Capabilities Of The Power SupplyRemote Programming Introduction To SCPISCPI Messages Types of SCPI CommandsCommon Commands Subsystem CommandsExample Figure 2-1. Command Message StructureParts of a SCPI Message Message ComponentRoot Specifier Traversing the Command TreeQuery Indicator Message Unit SeparatorOUTPUTPROTECTIONCLEAR STATUSOPERATIONCONDITION? Figure 2-2. Partial Command Tree Active Header PathThe Effect of Optional Headers Moving Among SubsystemsValue Coupling Including Common CommandsSymbol SCPI QueriesTable 2-2. Suffixes and Multipliers Examplescontrolled GPIB interfaces Listening FormatsProgramming Voltage and Current Disable the outputEnable the output Controlling the OutputSaving and Recalling States Writing to the DisplayProgramming Status System Considerations Programming the Digital I/O PortThe GPIB Address A stand-alone primary address and a direct primary address A direct primary address and a secondary addressAssigning the GPIB Address In Programs Sample Program Code Error HandlingDOS Drivers Agilent BASIC ControllersProgramming Some Power Supply Functions Controller Using Agilent 82335A Interface‘ --------------- Merge SETUP.BAS here 22 Remote Programming Programming Some Power Supply Functions continuedFOR I=1 TO Programming Some Power Supply Functions continuedSPOL%=O IF SPOL% AND 128 = 128 THEN POLL = 1 Set interrupt flag on OPER bit24 Remote Programming Programming Some Power Supply Functions continuedLanguage Dictionary Related CommandsCommon Commands Subsystem CommandsFigure 3-1. Common Commands Syntax Diagram Description Of Common Commands0 to Bit Configuration of Standard Event Status Enable RegisterMeaning and Type DescriptionQuery Syntax Related CommandsESR? IDN?PSC 0 *PSC Power-on Status Clear Device InitializationOPC? OPT?Description Meaning and TypeDescription Meaning and TypeDescription Meaning and TypeDescription Bit Configuration of Status Byte RegisterSTB? Meaning and TypeMeaning and Type TST?Meaning and Type DescriptionABOR Description of Subsystem CommandsCalibration Commands Figure 3-2. Subsystem Commands Tree DiagramCURRENTLEVEL 200 MA Current SubsystemCURR CURRTRIG CURRPROTSTATDisplay Subsystem Digital I/O Port Programming ChartPin Configuration1 ConfigurationDISPMODE NORM DISPTEXT DEFAULTMODEDISPMODE DISPTEXTMEASCURR? MEASVOLT? Initiate SubsystemMeasure Subsystem INIT INITCONTOUTP OUTPUTPROTECTIONDELAY 75E-1OUTPUTPROTDELAY MAX Output SubsystemOUTPRELPOL NORM OUTPRELOUTPRELPOL OUTPREL 1 OUTPREL OFFSTATPRES Bit Configuration of Operation RegistersBit Weight Status SubsystemSTATUSOPERATIONENABLE? STATOPERENABSTATOPER NTR STATOPER PTR STATQUESCOND? Bit Configuration of Questionable RegistersStatus Questionable Registers STATQUES?corresponding Questionable Event register System CommandsSTATQUES NTR STATQUES PTR SYSTERR?TRIG Trigger SubsystemSYSTLANG SYSTVERS?VOLTAGELEVEL 200 MV Voltage SubsystemTRIGSOUR VOLT VOLTTRIGVOLTPROT Command SummaryCommand Summary CommandSubsystem Commands Command ParametersCommand Summary CommandParameter Characteristics in the Operating GuideTable 3-1. Power Supply Programming Parameters see note Programming ParametersPage Status Reporting Power Supply Status StructureRegister Commands Table 4-1. Status Operation CommandsMeaning Table 4-2. Bit Configurations of Status RegistersSignal Figure 4-1. Power Supply Status ModelCLS *ESR? Table 4-3. Status Questionable CommandsQuestionable Status Group Standard Event Status GroupStatus Byte Register Service Request Enable RegisterInitial Conditions At Power On Determining the Cause of a Service InterruptTable 4-4. Default Power On Register States The PON Power-On BitServicing an Operation Status Mode Event information about encoding the commands as language stringsTable 4-5. Generating RQS from the CC Event Monitoring Both Phases of a Status TransitionAdding More Operation Events Servicing Questionable Status EventsTechniques in ANSI/IEEE Std SCPI Command CompletionDFI Discrete Fault Indicator RI Remote InhibitPage System Error Messages Error MessagesPower Supply Hardware Error Messages Calibration Error Messages60 Error Messages Table 6-1. Summary of System Error Messages continuedError Error String Description/Explanation/ExamplesSCPI Version SCPI Confirmed Commands1SCPI Approved Commands SCPI Conformance InformationNON-SCPI Commands1 Compatibility Language Command Table B-1. ARPS CommandsARPS Command1 Similar SCPIDescription Table B-1. ARPS Commands continuedARPS Command1 CommandDescription Table B-1. ARPS Commands continuedARPS Command1 CommandIndex 68 Index Page Canada Agilent Sales and Support OfficeUnited States Latin America