Serial interface, Ack | Xantrex Technology XMP 2600 manual

The serial interface

Interfacing the XMP 2600

The serial interface

The Serial Interface is RS232 hardware interface with three types of operating modes: Monitor Mode, Remote Terminal Control Mode and Remote Computer Control Mode.

Serial

Interface

Capabilities

Computer

Versus

Terminal

Operation

Pressing the terminal’s ENTER key while the Serial Interface is in Monitor Mode and the GPIB Interface is OFF will cause the Serial Interface to switch to the Remote Terminal Control Mode.

In addition to the Transmit and Receive lines, the interface implements the following hardware handshake lines:

DTR -	Data Terminal Ready.
CTS -	Clear To Send.
RTS -	Request To Send.
DCD -	Data Carrier Detected.

The interface has the following programmable parameters:

Baud Rate -	2400, 4800, 9600.
Xon/Xoff -	Yes, No.
Stop Bits -	1 or 2 depending on the Parity settings.
Parity -	Odd, Even, None.
Echo -	Yes, No.

The number of Start Bits is fixed at 1.

The Serial Interface Parameters are set in the SERIAL SET-UP MODE (see: User’s Guide).

The Serial Interface always uses “hardware handshake” (signals CTS and RTS). If you do not wish to utilize those signals, short pins 7 and 8 of the connecting cable, on the XMP’s side (see the User’s Guide for further details).

The selection of the ECHO parameter determines the Remote Control Mode of operation by changing some aspects of the behavior of the Serial Interface, as detailed below:

echo	Yes (terminal)	No (computer)

echo	echo each received character	no echo

prompt	'>'	{ACK}

SRQ string	'{bell}SRQ<'	'SRQ<'

terminators	{CR} echoed as {CR}{LF}	{CR}{LF} or {LF}

In the Computer Remote Control mode of operation, the XMP 2600 will respond to each command string with an ASCII {ACK} - 06 HEX.

2	XMP 2600 Programming Manual rev. 1.1

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Xantrex Technology XMP 2600 manual Serial interface, Ack

Contents

Xantrex Multiple Output Power System XMP XMP Last? Limited What does this warranty cover and how long does itHow do you get service? Warranty Disclaimer Product What does this warranty not cover? Information Information About Your Power Supply Safety Summary Description Power Supply SymbolsPower Supply Grounding Nonoperative Modules Input Mains Voltage RatingOutput Voltages Do Not Open The Unit Air Inlets And Air Outlet Regulatory Approvals Regulatory Approvals and Safety Agency ComplianceSafety Agency Compliance Power Supply Safety About this manual Chapters TerminologyWho should use this manual Table of contents Basic Programming Commands and Queries Reference Byte Error Codes summary Gpib interface 1Interfacing XMP ACK Serial interface Listening Formats Programming messages formats Response Data Separator Talking Formats Using an RS232 link How to communicate with the XMPUsing the comm. channels Using the Gpib bus Programming the XMP Recovering from communication haltsUsing queries Using commands Initialize the XMP Recommendations on using the XMP Identify the XMP Enforce power-on conditionsSetup the XMP 2600 status system Query installed Power Modules Initial setup of the Power Modules Setup system level protection shutdown features Status reporting Protection setupOutput settings Activation Use queries Using advanced featuresHandling SRQ and the IEEE488.2 Status Structures On-going usage of the XMP Mask registers Event enable registersStatus registers Event registers Responding to SRQ events Main status byteMain controller events Output message Queue Primary engine status structure Summary of power modules statusPower modules status structure Remote communication time out Events Register What happens when power is turned onError Code Faults Register Usage Guidelines Output Setup Basic setup and usage Overview of output setup parameters Power Module output rating Globally enabling the outputs Output settingsOutput control Output activation Polarity and disconnect relays Voltage / current modeCurrent limiting schemes Foldback Linear foldback Reprogramming DelayRetry Shutdown on current limit Basic Programming Enabling the window thresholds Setting the window thresholdsWorkpoint window warning Usage guidelines Checking the status Using the events mechanismUsing the warnings Voltage mode example OVP Protection using the workpoint windowLoad protection Additional usages Toggle the output state on/off Arm, trigger, sync and rampTrigger mechanism Set output to stored values Sync output Output ramping What is output ramping? Simultaneous operations Output ramping setupSynchronization of operations Output ramping initiation Sequential Operations Using hardware Trig and Sync to serialize operationsOutput on/off Other operations Controller notification of Operation Complete Using software OPC mechanism to serialize operations Different shutdown grouping of modules Commands to program shutdown groupingSelective shutdown Shutdown grouping single, group, global Shutdown on non-fault events Responding to communication time out eventsComm. time out Time out events as reflected in the status structure Turn-on and reset behavior Ieee 488.1 BUS Commands System Commands QueriesCategories Gpib ResetGlbl GLBL? Settings Commands Queries Output Control Protection Commands Queries Trigger Sync Commands QueriesRead-Back Queries Status Reporting Commands Queries Synch Mnemonic Alphabetical reference 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? = Goto = OFF= Stop 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 Events Register Ieee 488.2 compatible Status Structures Output Register Faults RegisterError Code Events Enable Register Events Filtering Negative Mask Register Events Filtering Positive Mask Register PON CME EXE DDE QYE OPC Standard Event Status Register read with *ESR? Primary Event Status Register read with PER? Primary Status Register read with PSR? Primerr Status Byte Register read with *STB? Self Test Results Power Modules Main Controller Byte Main Power Modules Communications errors Error Codes summaryPower Modules Errors Reported by the Power Module Errors Detected by the Main Controller RS232 Communications errors Gpib Communications errorsParser and Execution errors Status reporting Xantrex Technology Inc