1Interfacing XMP, Gpib interface | Xantrex Technology XMP 2600

Interfacing the XMP 2600

The GPIB interface

1Interfacing the

XMP 2600

The XMP 2600 has two types of interfaces used for remotely controlling it: a GPIB (IEEE 488) Interface and a Serial (RS232) Interface. The two interfaces differ only in the communication hardware and protocol. Input and Output Queues, Command and Query Parsing and Execution are identical no matter which interface is being used to remotely control the XMP 2600.

The XMP 2600 has two remote controlling modes. Unless otherwise required, the IEEE

488.2compatible mode should be used. The controlling mode in effect is DIP-Switch selected (at the rear panel – please refer to the user’s guide) and may be overridden by a Remote command.

The GPIB interface

The GPIB Interface is an IEEE 488.1 hardware interface with IEEE 488.2 capabilities. The capabilities of the GPIB Interface are summarized below:

SH1	Source handshake - FULL.
AH1	Acceptor handshake - FULL.
T6	Talker - basic, serial poll, unaddressed if MLA.
L3	Listener - basic, listen only, unaddressed if MTA.
SR1	Service request - FULL.
RL1	Remote local - FULL.
PP1/PP2	Parallel poll - remote and local configuration.
DC1	Device clear - FULL.
DT1	Device trigger - FULL.

The size of the Input and Output Queues is 256 Bytes.

The XMP 2600 uses an Input Queue rather than an Input Buffer (as required by IEEE 488.2). This enhancement practically prevents Lock- Ups.

XMP 2600 Programming Manual rev. 1.1

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Xantrex Technology XMP 2600 manual 1Interfacing XMP, Gpib interface

Contents

Xantrex Multiple Output Power System XMP XMP Warranty Limited What does this warranty cover and how long does itHow do you get service? Last? What does this warranty not cover? Disclaimer Product Information About Your Power Supply Information Power Supply Grounding Safety SummaryDescription Power Supply Symbols Do Not Open The Unit Air Inlets And Air Outlet Input Mains Voltage RatingOutput Voltages Nonoperative Modules Power Supply Safety Regulatory Approvals and Safety Agency ComplianceSafety Agency Compliance Regulatory Approvals Who should use this manual About this manualChapters Terminology Table of contents Basic Programming Commands and Queries Reference Error Codes summary Byte 1Interfacing XMP Gpib interface Serial interface ACK Programming messages formats Listening Formats Talking Formats Response Data Separator Using the Gpib bus How to communicate with the XMPUsing the comm. channels Using an RS232 link Using commands Recovering from communication haltsUsing queries Programming the XMP Recommendations on using the XMP Initialize the XMP Query installed Power Modules Enforce power-on conditionsSetup the XMP 2600 status system Identify the XMP Setup system level protection shutdown features Initial setup of the Power Modules Activation Protection setupOutput settings Status reporting On-going usage of the XMP Using advanced featuresHandling SRQ and the IEEE488.2 Status Structures Use queries Event registers Event enable registersStatus registers Mask registers Output message Queue Main status byteMain controller events Responding to SRQ events Remote communication time out Summary of power modules statusPower modules status structure Primary engine status structure Faults Register What happens when power is turned onError Code Events Register Usage Guidelines Basic setup and usage Output Setup Power Module output rating Overview of output setup parameters Output activation Output settingsOutput control Globally enabling the outputs Foldback Voltage / current modeCurrent limiting schemes Polarity and disconnect relays Shutdown on current limit Reprogramming DelayRetry Linear foldback Basic Programming Usage guidelines Setting the window thresholdsWorkpoint window warning Enabling the window thresholds Voltage mode example Using the events mechanismUsing the warnings Checking the status Additional usages Protection using the workpoint windowLoad protection OVP Set output to stored values Arm, trigger, sync and rampTrigger mechanism Toggle the output state on/off Sync output What is output ramping? Output ramping Output ramping initiation Output ramping setupSynchronization of operations Simultaneous operations Other operations Using hardware Trig and Sync to serialize operationsOutput on/off Sequential Operations Using software OPC mechanism to serialize operations Controller notification of Operation Complete Shutdown grouping single, group, global Commands to program shutdown groupingSelective shutdown Different shutdown grouping of modules Comm. time out Shutdown on non-fault eventsResponding to communication time out events Turn-on and reset behavior Time out events as reflected in the status structure Categories Ieee 488.1 BUS CommandsSystem Commands Queries GLBL? ResetGlbl Gpib Settings Commands Queries Output Control Protection Read-Back Queries Commands QueriesTrigger Sync Commands Queries Status Reporting Commands Queries Synch Alphabetical reference Mnemonic Parameters None Category System Type Sequential PRE Stores settings of all the Power Modules same as STO command Result register Syntax Return two decimal numbers, in the range 0 to 255. Each bit Cmask Close relay and a value of 1 is returned for an open relay Remove a user message from the XMP 2600 front panel display Set-up the operating mode of the XMP 2600. Re-calculate rqs Response is a series of values one for each installed Power Return output Current measurement of the Power Module. Return the state of the XMP 2600 Local Lock Flag. a value Ocrst Decimal value in the range 0 to Syntax Presence of the Polarity Reversal Relay Option Parameters None Category Settings Type Sequential Master mainframe. For the XMP 2600 this value is String in the following format mssnnn where m=minutes Result is two decimal numbers the first being the level 0t o SN? = Stop = Goto= OFF Module. Result is a decimal number in the range 0 to Shut-down when a remote communication time out occurs. Time out feature Syntax Minus sigh Syntax VLIM? Vset Commands and Queries Reference Ieee 488.2 compatible Status Structures Events Register Events Enable Register Faults RegisterError Code Output Register Events Filtering Positive Mask Register Events Filtering Negative Mask Register Standard Event Status Register read with *ESR? PON CME EXE DDE QYE OPC Primary Status Register read with PSR? Primary Event Status Register read with PER? Status Byte Register read with *STB? Primerr Power Modules Self Test Results Byte Main Controller Errors Detected by the Main Controller Error Codes summaryPower Modules Errors Reported by the Power Module Main Power Modules Communications errors Parser and Execution errors RS232 Communications errorsGpib Communications errors Status reporting Xantrex Technology Inc