Model 6485 and 6487 User’s Manual Remote Operation and Commands 7-5
Common commands
Common commands are summarized in Table 7-2.
Table 7-2
IEEE-488.2 common commands and queries
Mnemonic Name Description
*CLS Clear status Clears all event registers and error queues.
*ESE <NRf> Event enable command Program the standard event enable register.
*ESE? Event enable query Read the standard event enable register.
*ESR? Event status register query Read the standard event enable register and clear it.
*IDN? Identification query Returns the manufacturer, model number, serial number, and
firmware revision levels of the unit.
*OPC Operation complete command Set the operation complete bit in the standard event register
after all pending commands have been executed.
*OPC? Operation complete query Places an ASCII “1” into the output queue when all pending
selected device operations have been completed.
*OPT? Option query Returns model number of any installed options.
*RCL <NRf> Recall command Returns Model 6485/6487 to the user-saved setup.
*RST Reset command Returns Model 6485/6487 to the *RST default conditions.
*SAV <NRf> Save command Saves the present setup as the user-saved setup.
*SRE <NRf> Service request enable command Programs the service request enable register.
*SRE? Service request enable query Reads the service request enable register.
*STB? Status byte query Reads the status byte register.
*TRG Trigger command Sends a bus trigger to Model 6485/6487.
*TST? Self-test query Performs a checksum test on ROM and returns the result.
*WAI Wait-to-continue command Wait until all previous commands are executed.
Signal oriented commands.
Signal oriented commands used to make basic measurements are shown in Table 7-3.
Table 7-3
Signal oriented commands
Command Description
CONFigure[:<function>]
CONFigure?
FETCh?
READ?
MEASure[:<function>]?
Places Model 6485/6487 in a “one-shot” measure-
ment mode. <function> = CURR[:DC]
Queries the selected function. Returns ‘CURR’.
Requests the latest reading(s).
Performs an INITiate and a :FETCh?.
Performs a CONFigure:<function> and a :READ?.
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