Agilent Technologies 668xA Status Reporting, Power Supply Status Structure, Register Functions

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Status Reporting

4

Status Reporting

Power Supply Status Structure

Figure 4-1 shows the status register structure of the power supply. The Standard Event, Status Byte, and Service Request Enable registers and the Output Queue perform standard GPIB functions as defined in the IEEE 488.2 Standard Digital Interface for Programmable Instrumentation. The Operation Status and Questionable Status registers implement status functions specific to the power supply. Table 4-2 and Figure 4-1 show the bit configuration of each status register.

Operation Status Group

Register Functions

The Operation Status registers record signals that occur during normal operation. The group consists of the following registers:

•A Condition register that holds real-time status of the circuits being monitored. It is a read-only register.

•A PTR/NTR (positive transition/negative transition) Filter that functions as described under STAT:OPER:NTRPTR COMMANDS in "Chapter 3 - Language Dictionary". This is a read/write register.

•An Event register that latches any condition that is passed through the PTR or NTR filters. Reading the Event register clears it.

•An Enable register that functions as described under STAT:OPER:ENAB in "Chapter 3 - Language Dictionary". This is a read/write register.

The outputs of the Operation Status group are logically-ORed into the OPER(ation) summary bit (7) of the Status Byte register.

Register Commands

Commands that access this group are derived from the STAT:OPER commands described in "Chapter 3 - Language Dictionary" and summarized in Table 4-1.

Table 4-1. Status Operation Commands
Register

Command

Query
Cleared By

Condition

(None)

STAT:OPER:COND?

Cannot be cleared

PTR Filter

STAT:OPER:PTR <NRf>

STAT:OPER:PTR?

Programming 0

NTR Filter

STAT:OPER:NTR <NRf>

STAT:OPER:NTR?

Programming 0 or

 

 

 

STAT:PRES

Event

(None)

STAT:OPER:EVEN?

Reading or *CLS

Enable

STAT:OPER:ENAB <NRf>

STAT:OPER:ENAB?

Programming 0

 

 

 

 

Status Reporting 51

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Contents Agilent Part No PROGRAMMING GUIDE GPIB DC POWER SUPPLIESMicrofiche Part No JulyPrinting History Safety GuidelinesGENERAL INFORMATION ContentsREMOTE PROGRAMMING LANGUAGE DICTIONARYDescription of Subsystem Commands STATUS REPORTING ERROR MESSAGESSCPI CONFORMANCE INFORMATION COMPATIBILITY LANGUAGEAbout this Guide General InformationDocumentation Summary User’s GuideVXIplug&play Power Product Instrument Drivers Prerequisites for Using this GuideDownloading and Installing the Driver Accessing Online HelpRemote Programming GPIB Capabilities Of The Power SupplyIntroduction To SCPI ConventionsSCPI Messages Types of SCPI CommandsStructure of a SCPI Message Common CommandsFigure 2-1.Command Message Structure Parts of a SCPI MessageMessage Component VOLT LEV PROT CURRQuery Indicator Traversing the Command TreeMessage Unit Separator Root SpecifierActive Header Path Figure 2-2.Partial Command TreeThe Effect of Optional Headers Moving Among SubsystemsSCPI Queries Including Common CommandsValue Coupling SCPI Data FormatsListening Formats ExamplesTable 2-2.Suffixes and Multipliers ClassDisable the output Controlling the OutputEnable the output Programming Voltage and CurrentWriting to the Display Saving and Recalling StatesProgramming Status Programming the Digital I/O Port System ConsiderationsThe GPIB Address A direct primary address and a secondary address Agilent BASIC Controllers DOS DriversSample Program Code Error HandlingController Using Agilent 82335A Interface Programming Some Power Supply Functions22 Remote Programming Programming Some Power Supply Functions continued1130 24 Remote Programming Common Commands Related CommandsSubsystem Commands Language DictionaryFigure 3-1.Common Commands Syntax Diagram Description Of Common CommandsDescription Meaning and Type0 to IDN? ESR?Related Commands Query SyntaxOPT? OPC?Power-onStatus Clear Device Initialization PSC 0 *PSCDescription Meaning and TypeDescription Bit Configuration of Status Byte Register STB?TST? Calibration Commands Description of Subsystem CommandsABOR Figure 3-2.Subsystem Commands Tree DiagramCURR CURR TRIG Current SubsystemCURR PROT STAT CURRENT:LEVEL 200 MADIG DATA Display SubsystemDISP Digital I/O Port Programming ChartDISP TEXT DISP MODEDISP TEXT DEFAULT MODE enclosed in either single ‘ or double quotesMeasure Subsystem Initiate SubsystemINIT INIT:CONT MEAS CURR? MEAS VOLT?OUTP Output SubsystemOUTP PROT CLE OUTP PROT DEL 0 orOUTP REL POL OUTP RELOUTP REL 1 OUTP REL OFF OUTP REL POL NORMSTAT PRES Status SubsystemStatus Operation Registers STAT OPER?STAT OPER NTR STAT OPER PTR STAT OPER ENABSTATUS OPERATION ENABLE? STAT QUES? Status Questionable RegistersSTAT:QUES:COND? STAT QUES ENABSTAT QUES NTR STAT QUES PTR System CommandsSYST ERR? corresponding Questionable Event registerSYST LANG Trigger SubsystemSYST VERS? TRIGTRIG SOUR Voltage SubsystemVOLT VOLT TRIG VOLTAGE LEVEL 200 MVVOLT:PROT Command SummaryCommand Summary CommandCommand Parameters Programming Parameters Characteristics in the Operating GuideParameter Agilent Model and ValueRegister Commands Power Supply Status StructureStatus Reporting Operation Status GroupSignal Table 4-2.Bit Configurations of Status RegistersFigure 4-1.Power Supply Status Model MeaningStandard Event Status Group Questionable Status GroupTable 4-3.Status Questionable Commands CLS *ESR?Initial Conditions At Power On Service Request Enable RegisterDetermining the Cause of a Service Interrupt Status Byte RegisterServicing an Operation Status Mode Event The PON Power-OnBitTable 4-4.Default Power On Register States Caused ByAdding More Operation Events Monitoring Both Phases of a Status TransitionServicing Questionable Status Events Table 4-5.Generating RQS from the CC EventDFI Discrete Fault Indicator SCPI Command CompletionRI Remote Inhibit Techniques in ANSI/IEEE StdPower Supply Hardware Error Messages Error MessagesCalibration Error Messages System Error Messages60 Error Messages SCPI Approved Commands SCPI Confirmed Commands1SCPI Conformance Information SCPI VersionNON-SCPICommands1 Compatibility Language ARPS Command1 Table B-1.ARPS CommandsSimilar SCPI Table B-1.ARPS Commands continued ARPS Command1 Index 68 Index Page United States Agilent Sales and Support OfficeLatin America Canada
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668xA, 669xA, 667xA, 664xA, 665xA specifications

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