Agilent Technologies 66lxxA manual Questionable Status Group, Status Questionable Commands Query

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Bit Signal

Table 4-2. Bit Configurations of Status Registers

Meaning		Bit Signal	Meaning
Operation Status Group			Standard Event Status Group

0CAL

5WTG

8CV

10CC

12DWE

The interface is computing new calibration constants

The interface is waiting for a trigger The power module is in constant voltage mode

The power module is in constant current mode

The list step is active (dwelling)

Questionable Status Group

0

2

3

4

5

7

OPC

QYE DDE

EXE

CME PON

Operation complete

Query error

Device-dependent error

Execution error

Command error

Power on

Status Byte and Service Request

Enable Registers

0OV

1OC

4OT

9RI

10UNR

The power module overvoltage protection circuit has tripped The power module overcurrent protection circuit has tripped The power module has an overtemperature condition

The power module remote inhibit state is active

The power module output is unregulated

3

4

5

6

7

QUES

MAV

ESB

MSS RQS OPER

Questionable status summary bit

Message Available summary bit

Event Status summary bit

Master Status summary bit Request Service bit Operation status summary bit

Questionable Status Group

Register Functions

The Questionable Status registers record signals that indicate abnormal operation of the power module. As shown in Figure 4-1, the group consists of the same type of registers as the Status Operation group. The outputs of the Questionable Status group are logically-ORed into the QUES(tionable) summary bit (3) of the Status Byte register.

Register Commands

Programming for this group is derived from the STAT:QUES commands described in "Chapter 3 - Language Dictionary" and summarized in Table 4-3.

Register

Condition

PTR Filter

NTR Filter

Event

Table 4-3. Status :Questionable Commands

Command	Query
(None)	STAT:QUES:COND?

STAT:QUES:PTR <NRf>	STAT:QUES:PTR?

STAT:QUES:NTR <NRf>	STAT:QUES:NTR?

(None)	STAT:QUES:EVEN?

Cleared By

Cannot be cleared

Programming 0

Programming 0 or

STAT:PRES

Reading or *CLS

Enable

STAT:QUES:ENAB <NRf>

STAT:QUES:ENAB?

Programming 0

52 Status Reporting

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Contents Programming Guide Agilent Part No Microfiche Part No Update AprilSafety Guidelines Contents Abor Status Reporting Error Messages Synchronizing Power Module Output ChangesExternal References IntroductionAbout This Guide Documentation SummarySupported Applications VXIplug&play Power Products Instrument DriversDownloading and Installing the Driver Accessing Online HelpIntroduction To Scpi Gpib Capabilities Of The Power ModuleIntroduction To Programming Module Gpib AddressRST *IDN? *SRE Voltlev 8.0 Prot 8.8 CURR? Volt LEV Prot CurrOutpprotdel Effect of Optional Headers Traversing the Command TreeVolttrig 7.5INIT*TRG Outp OFF*RCL 2OUTP on Outputprotectionclear STATUSOPERATIONCONDITION?OUTPUTPROTECTIONCLEARSTATUSOPERATIONCONDITION? Voltagelevel 7PROTECTION 8CURRENTLEVEL 3MODE ListSuffixes and Multipliers Class Unit Unit with Multiplier SymbolNumerical Data Formats Talking Formats Listening FormatsAssign @PM3TO System ConsiderationsAgilent Basic Controllers Error HandlingUsing the National Instruments Gpib Interface Sending the Command Volt 5 in C Sending the Command Volt 5 in BasicReceiving Module Data with Basic Receiving Data from the ModuleReceiving Module Data with C Introduction Language DictionaryDescription Description Of Common CommandsCLS Meaning and TypeESR? Bit Configuration of Standard Event Status Enable RegisterESE ESEIDN? OPCOPC? PSC OPT?RCL RCLRST SAV SRESRE Bit Configuration of Status Byte Register STB?TRG Abor Description of Subsystem CommandsTST? WAICalauto Subsystem Tree Diagram Calibration SubsystemCalpass Calauto 1 Calauto OnceCalcurr CalcurrlevCalvoltlev CalsaveCalstat CalvoltCurrmode CalvoltprotCurr Curr 500 MA CurrlevCurrtrig 1200 MA Currlevtrig CurrprotstatCurrprotstat OFF CurrtrigListcurr Init Initcont 1 Initcont onListcoun Listcoun Listcoun INFListstep LISTCURRPOIN?Listdwel LISTDWELPOIN?MEASCURR? MEASVOLT? ListvoltListvolt 2.0,2.5,3.0 Listvolt MAX,2.5,MIN LISTVOLTPOIN?Outpprot Outp Outpstat ON,NORELAYNorm Outpprotcle Outpprotdel 75E-1Outprel OutprelpolOutpttltsour Link OutpttltOutpttlt 1 Outpttlt OFF OutpttltlinkStatoperenab STATOPER?STATOPEREVEN? STATOPERCOND?Statpres Stat Oper NTR 32 Stat Oper PTRStat Ques COND? STATQUES?STATQUESEVEN? STATQUESCOND?Trig SYSTERR?SYSTVERS? Trigger SubsystemTriglink Trig Trig IMMTrigdel Trigdel .25 Trigdel MAXVoltmode List Voltmode FIX VoltVoltlev VoltmodeVOLTSENSSOUR? VolttrigVolttrig 1200 MV Voltlevtrig Link Parameter List Power Module Programming ParametersOperation Status Group Power Module Status StructureStatus Register Bit Configuration Status ReportingBit Signal Bit Configurations of Status Registers Meaning Status Questionable Commands QueryQuestionable Status Group Standard Event Status Group Power Module Status ModelStatus Byte Register Output QueueLocation Of Event Handles Examples Initial Conditions At Power OnStatoperptr 1024NTR Statoperenab 1024*SRE Statoperptr 5376ENABStatquesptr 18ENAB STATOPEREVEN?QUESEVEN?Synchronizing Power Module Output Changes Trigger SubsystemModel of Fixed-Mode Trigger Operation Delaying State Idle StateInitiated State Output Change State Model of List Mode Trigger OperationINITiateCONTinuous Command Trigger Status and Event SignalsOutpttltsour List Subsystem Triggering a List Listvolt 3.0,3.25,3.5,3.75 Listdwel 10,10,25,40Automatically Repeating a List Listcurr 2,3,12,15Timing diagrams of Liststep Operation DFI Discrete Fault Indicator Subsystem Scpi Command CompletionRI Remote Inhibit Subsystem Standard Event Status Register Error Bits Error MessagesPower Module Hardware Error Messages System Error Messages222 -223 -241 -310 -330 -350 -400 -410 -420 -430 Scpi Version Scpi Confirmed CommandsScpi Approved Commands Scpi Conformance InformationNon-SCPI Commands Application Programs Application 1. Sequencing Multiple Modules During Power Up Variations On This Implementation Figure B1-1. Block Diagram of Application #1Figure B1-2. Timing Diagram of Application #1 Enable Response to Trigger Reset and Clear ModuleEnable Backplane TTL Trigger Drive Enable OutputImplementation Details How The MPS Implements The Solution MPS Set Up Figure B2-1. Block Diagram of Application #2 Start AT 15 When a CV-TO-CC Transition OccursEnable TTL Trigger Drive Enable Response to TTL TriggerApplication 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 Seconds Option BaseStart Voltage for Ramp Stop Voltage for RampFigure B4-1. Voltage Waveform for Application #4 Application 4. Providing Time-Varying VoltagesModule set up Variations On This Implementation Enables Detection on Positive TRANSITION, I.E Enable OCPNo Delay Before Protection Occurs Enable Detection of OC ConditionApplication 5. Providing Time-Varying Current Limiting Figure B5-1. Typical DUT Current vs. Time Implementation Details How The MPS Implements The Sequence SET to GET Current from List GO to 12 V When TriggeredCurrent Limit Data Dwell Time DataNominal 12 Application 6. Output Sequencing Paced by the ComputerMPS Set Up Figure B6-1. Block Diagram of Application #6 Number of Bias Supply Limit C0MBINATIONS These are the BiasSupply Limit Conditions To be TestedReturn Overview Of Application Advantages/Benefits Of The MPS Solution Figure B7-1. Block Diagram of Application #7 Enable Intr Identify Handler Subroutine When the Module Indicates SIC Step CompletedWhen IT Completes the LIST. OPC Generates SRO Enable SRQ InterruptSupplemental Information CMD$ = Voltmode List ‘ SET to GET Voltage from List CMD$ = Output on ‘ Enable OutputCMD$ = Initiate ‘ Enable Trigger to Start List ‘ Conversion to Send Real Numbers Over the BUSWend Call Iooutputs SLOTO, CMDS, LWaiting for Trigger BIT 5 of the Operation Status Register CONDITION.DATA =‘ INSTRUMENT.NAME$ = Sloto ‘ Disable Auto Serial PollIf IBSTA% 0 then Goto ‘ AS Part of the Command String ‘ Program N3.BAS‘ General Error Handler If IBSTA% 0 then Goto Selected AS a Trigger SourceStop Dwell = ramptime Application #3 Controlling Voltage Ramp UP AT Turn onTo 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 IndexIndex Index Index United States Latin America Agilent Sales and Support OfficesManual Updates