Variations On This Implementation | Agilent Technologies 66lxxA

Variations On This Implementation

1.The module could be set to begin generating the waveform in response to an external or backplane TTL Trigger.

2.The module could be set to generate external triggers for each point in the List. This trigger could be routed to other instruments to synchronize external measurements to the change in voltage. (see application #7) Using this technique, parametric measurements could be made on the device during the thermal cycling.

3.Multiple modules could be programmed to cycle together in response to the computer trigger command.

4.To determine how many times the hybrid was cycled before it failed, you can use the SRQ (that was generated when the hybrid failed and the module went into CC) to timestamp the failure. The elapsed time will give the number of cycles executed.

84 Application Programs

Image 83

Agilent Technologies 66lxxA manual Variations On This Implementation

Contents

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