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Language Dictionary - 3
113
Common Commands
Common commands begin with an * and consist of three letters (command) IEEE 488.2 standard to
perform some common interface functions. The Agilent ac sources respond to the required common
commands that control status reporting, synchronization, and internal operations. The ac sources also
respond to optional common commands that control triggers, power-on conditions, and stored operating
parameters.
Common commands and queries are listed alphabetically. If a command has a corresponding query that
simply returns the data or status specified by the command, then both command and query are included
under the explanation for the command. If a query does not have a corresponding command or is
functionally different from the command, then the query is listed separately. The description for each
common command or query specifies any status registers affected. Refer to Chapter 4 under
“Programming the Status Registers”, which explains how to read specific register bits and use the
information that they return.
Common Commands Syntax
*CLS Clear status
*ESE <n> Standard event status enable
*ESE? Return standard event status enable
*ESR? Return event status register
*IDN? Return instrument identification
*OPC Enable "operation complete" bit in ESR
*OPC? Return a "1" when operation complete
*OPT? Return option number
*PSC <bool> Power-on status clear state set/reset
*PSC? Return power-on status clear state
*RCL <n> Recall instrument state
*RST Reset
*SAV <n> Save instrument state
*SRE <n> Set service request enable register
*SRE? Return service request enable register
*STB? Return status byte
*TRG Trigger
*TST? Perform selftest, then return result
*WAI Hold off bus until all device commands done