Xantrex Technology GPIB-XPD manual Gpib Operation

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Section 3. Operation

Introduction

This section covers GPIB interface programming, starting with IEEE-488 functions, continuing with an extensive set of device-dependent commands, and, finally, providing error codes, and status and fault register information.

GPIB Operation

A GPIB interface controller card enables you to control an IEEE-488 bus system via computer, identifying which of its interconnected devices are to send and receive data. Interconnected devices could include programmable AC or DC power supplies, oscilloscopes, signal generators, digital voltmeters, universal counters, readouts, relays, and printers.

Use the GPIB interface to relay GPIB instructions from a computer controller to a power supply located at a selected IEEE-488 address and then to return responses from the power supply to the computer. You will also use the computer controller to issue device-dependent commands such as output voltage level and status queries.

Note: This text employs National Instruments' IBIC (Interface Bus Interactive Control) program commands developed for their GPIB interface for computer controllers as examples only.

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Contents GPIB-XPD Page Internal Gpib Interface for XPD 500 Watt Series Phone 604 422 Toll Free North America 800 667 Fax 604 421 How do you get service?What does this warranty not cover? Disclaimer Product Model Number Serial Number Purchased From Purchase Date Information About Your Power SupplySupply SafetyMain Sections Installation and ConfigurationManual Revisions About This Manual Contents Contents Description Features and SpecificationsReadback Features and FunctionsFeatures and Specifications FunctionsModels 18-30 33-16 60-9 120-4.5 SpecificationsOVP Features and Specifications Initial Inspection IntroductionPower Supply Front Panel with Gpib Interface Installed Gpib Interface Subplate Located on Power Supply Rear Panel Gpib Interface PCB Step # Description Action Reference Basic Setup ProcedurePON SRQ Address IEEE-488 Primary Address SelectionRear Panel SRQ Switch Position PON SRQ State Power On Service Request PON SRQSwitch Position Power on results Iset Condition Default Settings Model ExampleInternal PCB Jumper Selections IEEE-488 Controller ConnectionOVP Control Mode Selection High OFF LOW User SignalsHigh LOW OFF User Signals J21 Connector J21 User Signal Connector Circuit Block Diagram J21 User Cable with Ferrite Block Gpib Operation OperationExample Command directed to entire bus, or LSB Bit Decimal Description Reset By Position WeightRequest Service SRQ Set when Power On PON Set when unitComputer Entry Command SyntaxFormat Floating Number Definition Example Description FormIset 2.0A Vset Command Summary DLY? AUXA?AUXB? CMODE?IHI FAULT?Cmode IdataAuxb 1 on Command ReferenceCommand Description Auxa 1 onChanging an output setting Response Fold mode where mode is Mask None = Unmask ALL SnspStatus, and Fault Registers on SNSP, ALL, None Accumulated Status, Status, and Fault Registers onResponse Vmax voltage Condition Mnemonic Bit Position Bit Weight Accumulated Status, Status, and Fault Registers11 Error Codes Error CodesLEDs TroubleshootingCalibration Voltage Voltage Mode CalibrationSetup Voltage Program Calibration Procedure ReadbackCalibration Current Calibration Setup Current Mode CalibrationCurrent Program Calibration Procedure Current Readback Calibration Procedure Over Voltage Protection OVP Calibration Page Xantrex Technology Inc