Status Reporting | Agilent Technologies 66lxxA manual

4

Status Reporting

Power Module Status Structure

Figure 4-1 shows the status register structure of the power module. 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 module.

Status Register Bit Configuration

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.

Register

Condition

PTR Filter

NTR Filter

Table 4-1. Status Operation Commands

Command	Query
(None)	STAT:OPER:COND?

STAT:OPER:PTR <NRf>	STAT:OPER:PTR?

STAT:OPER:NTR <NRf>	STAT:OPER:NTR?

Cleared By

Cannot be cleared

Programming 0 or

STAT:PRES

Programming 0

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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Agilent Technologies 66lxxA manual Status Reporting, Power Module Status Structure, Status Register Bit Configuration

Contents

Agilent Part No Microfiche Part No Update April Programming Guide Safety Guidelines Contents Abor Status Reporting Synchronizing Power Module Output Changes Error Messages Documentation Summary IntroductionAbout This Guide External References Accessing Online Help VXIplug&play Power Products Instrument DriversDownloading and Installing the Driver Supported Applications Module Gpib Address Gpib Capabilities Of The Power ModuleIntroduction To Programming Introduction To Scpi RST *IDN? *SRE Volt LEV Prot Curr Voltlev 8.0 Prot 8.8 CURR? Outpprotdel Traversing the Command Tree Effect of Optional Headers Voltagelevel 7PROTECTION 8CURRENTLEVEL 3MODE List Outputprotectionclear STATUSOPERATIONCONDITION?OUTPUTPROTECTIONCLEARSTATUSOPERATIONCONDITION? Volttrig 7.5INIT*TRG Outp OFF*RCL 2OUTP on Listening Formats SymbolNumerical Data Formats Talking Formats Suffixes and Multipliers Class Unit Unit with Multiplier System Considerations Assign @PM3TO Error Handling Agilent Basic Controllers Using the National Instruments Gpib Interface Sending the Command Volt 5 in Basic Sending the Command Volt 5 in C Receiving Data from the Module Receiving Module Data with Basic Receiving Module Data with C Language Dictionary Introduction Meaning and Type Description Of Common CommandsCLS Description ESE Bit Configuration of Standard Event Status Enable RegisterESE ESR? OPC? IDN?OPC OPT? PSC RST RCLRCL SRE SAVSRE TRG Bit Configuration of Status Byte RegisterSTB? WAI Description of Subsystem CommandsTST? Abor Subsystem Tree Diagram Calibration Subsystem Calauto Calcurrlev Calauto 1 Calauto OnceCalcurr Calpass Calvolt CalsaveCalstat Calvoltlev Curr 500 MA Currlev CalvoltprotCurr Currmode Currtrig CurrprotstatCurrprotstat OFF Currtrig 1200 MA Currlevtrig Listcoun Listcoun INF Init Initcont 1 Initcont onListcoun Listcurr LISTDWELPOIN? LISTCURRPOIN?Listdwel Liststep LISTVOLTPOIN? ListvoltListvolt 2.0,2.5,3.0 Listvolt MAX,2.5,MIN MEASCURR? MEASVOLT? Outp Outpstat ON,NORELAY Outpprot Outprelpol Outpprotcle Outpprotdel 75E-1Outprel Norm Outpttltlink OutpttltOutpttlt 1 Outpttlt OFF Outpttltsour Link STATOPERCOND? STATOPER?STATOPEREVEN? Statoperenab Stat Oper NTR 32 Stat Oper PTR Statpres STATQUESCOND? STATQUES?STATQUESEVEN? Stat Ques COND? Trigger Subsystem SYSTERR?SYSTVERS? Trig Trigdel .25 Trigdel MAX Trig Trig IMMTrigdel Triglink Voltmode VoltVoltlev Voltmode List Voltmode FIX Volttrig 1200 MV Voltlevtrig VOLTSENSSOUR?Volttrig Power Module Programming Parameters Link Parameter List Status Reporting Power Module Status StructureStatus Register Bit Configuration Operation Status Group Questionable Status Group Bit Signal Bit Configurations of Status Registers MeaningStatus Questionable Commands Query Power Module Status Model Standard Event Status Group Location Of Event Handles Status Byte RegisterOutput Queue Initial Conditions At Power On Examples STATOPEREVEN?QUESEVEN? Statoperptr 5376ENABStatquesptr 18ENAB Statoperptr 1024NTR Statoperenab 1024*SRE Model of Fixed-Mode Trigger Operation Synchronizing Power Module Output ChangesTrigger Subsystem Initiated State Delaying StateIdle State Trigger Status and Event Signals Model of List Mode Trigger OperationINITiateCONTinuous Command Output Change State Outpttltsour List Subsystem Listcurr 2,3,12,15 Listvolt 3.0,3.25,3.5,3.75 Listdwel 10,10,25,40Automatically Repeating a List Triggering a List Timing diagrams of Liststep Operation RI Remote Inhibit Subsystem DFI Discrete Fault Indicator SubsystemScpi Command Completion System Error Messages Error MessagesPower Module Hardware Error Messages Standard Event Status Register Error Bits 222 -223 -241 -310 -330 -350 -400 -410 -420 -430 Scpi Conformance Information Scpi Confirmed CommandsScpi Approved Commands Scpi Version Non-SCPI Commands Application Programs Application 1. Sequencing Multiple Modules During Power Up Figure B1-1. Block Diagram of Application #1 Variations On This Implementation Figure B1-2. Timing Diagram of Application #1 Enable Output Reset and Clear ModuleEnable Backplane TTL Trigger Drive Enable Response to Trigger Implementation Details How The MPS Implements The Solution MPS Set Up Figure B2-1. Block Diagram of Application #2 Enable Response to TTL Trigger When a CV-TO-CC Transition OccursEnable TTL Trigger Drive Start AT 15 Application 3. Controlling Output Voltage Ramp Up at Turn On Figure B3-1. Simulating a Slow Voltage Ramp Generating the Desired Voltage Ramp for Application #3 Stop Voltage for Ramp Option BaseStart Voltage for Ramp Seconds Application 4. Providing Time-Varying Voltages Figure B4-1. Voltage Waveform for Application #4 Module set up Variations On This Implementation Enable Detection of OC Condition Enable OCPNo Delay Before Protection Occurs Enables Detection on Positive TRANSITION, I.E Application 5. Providing Time-Varying Current Limiting Figure B5-1. Typical DUT Current vs. Time Implementation Details How The MPS Implements The Sequence Dwell Time Data GO to 12 V When TriggeredCurrent Limit Data SET to GET Current from List Application 6. Output Sequencing Paced by the Computer Nominal 12 MPS Set Up Figure B6-1. Block Diagram of Application #6 To be Tested These are the BiasSupply Limit Conditions Number of Bias Supply Limit C0MBINATIONS Return Overview Of Application Advantages/Benefits Of The MPS Solution Figure B7-1. Block Diagram of Application #7 Enable SRQ Interrupt When the Module Indicates SIC Step CompletedWhen IT Completes the LIST. OPC Generates SRO Enable Intr Identify Handler Subroutine Supplemental Information ‘ Conversion to Send Real Numbers Over the BUS CMD$ = Output on ‘ Enable OutputCMD$ = Initiate ‘ Enable Trigger to Start List CMD$ = Voltmode List ‘ SET to GET Voltage from List CONDITION.DATA = Call Iooutputs SLOTO, CMDS, LWaiting for Trigger BIT 5 of the Operation Status Register Wend ‘ Program N3.BAS ‘ Disable Auto Serial PollIf IBSTA% 0 then Goto ‘ AS Part of the Command String ‘ INSTRUMENT.NAME$ = Sloto Stop ‘ General Error HandlerIf IBSTA% 0 then Goto Selected AS a Trigger Source Application #3 Controlling Voltage Ramp UP AT Turn on Dwell = ramptime To terminate the iooutputa Int error Char *badstring If error != EOl enabled for both read and write Strcatvlist, vpoint This is a generalized error checking routine Index Index Index Index Index Agilent Sales and Support Offices United States Latin America Manual Updates