Crystal APM Advanced Pressure Module Manual de usuario descargar pdf (Pagina 10)

Communications  8

APM CPF Series Operation Manual

In order to avoid interruptions in the command execution process:

•

Turn on software ( XON / XOFF ) ow control on the PC side.

•

Avoid long command lines (lines more than 96 characters).

•

Send the *CLR command before starting the communication procedure.

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Check the error buer sending the FAULT? command after the communication procedure is nished.

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REMOTE COMMANDS AND ERROR CODES

The following tables list all the commands, and their descriptions, accepted by the APM.

Common Commands

Command Description

*CLS (Clear Status) Clears the error queue.

*IDN? (Identication Query) Returns the manufacturer, model number, and rmware revision of the module.

*RST Resets the module to the power up state.

Module Commands

Command Description

DAMP Turns Damp on or o.

DAMP? Returns if Damp is on or o.

FAULT? Returns the most recent error code.

PRES_UNIT Sets the pressure unit for the indicated display.

PRES_UNIT? Returns the pressure unit from the indicated display.

VAL? Returns the measured values.

ZERO_MEAS Zeros the pressure module.

ZERO_MEAS? Returns the zero oset of the pressure module.

CAL_STORE This command must be sent anytime a parameter has changed.

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Crystal APM Advanced Pressure Module Manual de usuario Pagina 10