5500A
Operator Manual
6-26
*OPC
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Operations Complete command) Set bit 0 (OPC) of the Event Status Register to 1 when
all pending device operations are complete. Also see the *ESR? command.
Parameter: (None)
Example: *OPC
Set bit 0 of the Event Status Register to 1 when all pending device operations are done.
*OPC?
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Operations Complete query) Return a 1 after all pending operations are complete. This
command causes program execution to pause until operations are complete. (See *WAI.)
Response: 1 (all operations are complete)
Example: *OPC? returns 1
Return 1 when all pending operations are complete.
OPER
Overlapped CoupledIEEE-488 RS-232 Sequential
xx xxx
(Operate command) Activate the 5500A Calibrator output if it is in standby. This is the
same as pressing the 5500A Calibrator front panel O key. If there are errors in the
error queue, the OPER command is inhibited for outputs 33V and over. (Also see the
ERR? command and STBY command.)
Parameter: (None)
Example: OPER
Connect the selected output to the 5500A Calibrator front panel terminals. Also lights
the annunciator in the O key.
OPER?
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Operate query) Return the operate/standby setting.
Response: 1 (Operate)
0 (Standby)
Example: OPER? returns 1
Return 1 when the 5500A Calibrator is in operate.
*OPT?
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
Returns a list of the installed hardware and software options, including any 5725A
Amplifiers that are attached.
Responses: <option string>,<option string>,... (options list, separated by commas)
0 (no options are installed)
Example: *OPT? returns 5725A, 5500A-SC
Return 5725A, 5500A-SC when the 5725A Amplifier option is attached and the
Oscilloscope Calibration Option is installed.
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