Agilent Technologies 8712ET Programmer's Manual page 127

Operation complete command. The analyzer will
*OPC
generate the OPC message in the Standard Event
Status Register when all pending overlapped
operations have been completed (e.g. a sweep, or a
preset). For more information about overlapped
operations, refer to
page
Operation complete query. The analyzer will return an
*OPC?
ASCII "1" when all pending overlapped operations
have been completed.
Returns a string identifying the analyzer's option
*OPT?
configuration. The string is of the form "1E1,100".
The options are identified by the following:
Sets the pass-control-back address (the address of the
*PCB <num>
controller before a pass control is executed).
Sets the state of the Power-on Status Clear flag — flag
*PSC <num>
is saved in non-volatile memory. This flag determines
whether or not the Service Request enable register and
the Event Status enable register are cleared at
powerup.
Programmer's Guide
"Overlapped Commands" on
2-3.
1EC 75 ohm
1E1 60 dB step attenuator
100 SRL and Fault Location
Introduction to SCPI
IEEE 488.2 Common Commands
9-17