10. Remote Commands
10.1 Introduction
Remote commands duplicate actions that can be initiated from the front panel in local
operating mode. Following the summary table is a complete alphabetical listing of all
commands complete with protocol details. Separate headings in the alphabetical listing
provide the parameters and responses, plus an example for each command. For
information on using the commands, see section 9.
10.2 Command Summary by Function
Common Commands
Command Description
*CLS Clear status. Clears the ESR, the error queue, and the RQS bit in the status
byte. This command terminates any pending operation complete com-
mands, *OPC or *OPC?.
*ESE Loads a byte into the Event Status Enable register.
*ESE? Returns the contents of the Event Status Enable register.
*ESR? Returns the contents of the Event Status register and clears the register.
*IDN? Identification query. Returns the manufacturer, model number, serial number,
and firmware revision level of the Calibrator.
*OPC Sets bit 0 (OPC for Operation Complete) in the Event Status Register to 1
when all pending device operations are complete.
*OPC? Returns a 1 after all pending operations are complete. This command caus-
es program execution to pause until all operations are complete. See also
the *WAI command.
*OPT? Returns a list of the installed hardware and software options.
*RST Resets the state of the instrument to the power-up state. This command
holds off execution of subsequent commands until it is complete.
*SRE Loads a byte into the Service Request Enable register (SRE).
*SRE? Returns the byte from the Service Request Enable register.
*STB? Returns the status byte.
*TST? Runs a series of self-tests and returns a "0" for pass or a "1" for fail. If any
faults are detected, they are logged into the fault queue where they can be
read by the FAULT? query.
*WAI Prevents further remote commands from being executed until all previous
remote commands have been completed.
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