Fluke Calibration 5730A, Operator'S Manual, Page: 172 / 260

5730A
Operators Manual
6-38
Table 6-5. Commands (cont.)
OLDREF
Description
Overlapped command, ignored if not in remote.
Sets the Calibrator output to the previously-programmed reference value. (The same as
pushing the

in local operation.)
Parameter None
ONTIME?
Description
Sequential command.
Returns the time in minutes since the Calibrator was turned on.
Parameter None
Response (Integer) Number of minutes since power-up this session.
*OPC
Description
Sequential command.
Sets bit 0 (OPC for "Operation Complete") in the Event Status Register to 1 when all
pending device operations are complete.
Parameter None
Response
Sets bit 0 (OPC for "Operation Complete") in the Event Status Register to 1 when all
pending device operations are complete.
Example
After sending an OUT command, check if the output has settled by sending *OPC. As
soon as the output has settled, a pending *OPC command sets bit 0 (OPC for "Operation
Complete") in the Event Status Register to 1. The command to read the ESR is *ESR?.
*OPC?
Description
Sequential command.
Causes program execution to pause until all operations are complete; returns a 1 upon
completion of these operations. (See also *WAI.)
Parameter None
Response (Integer) "1" after all operations are complete.
Example
If an OUT command had been sent, check if the output has settled by sending *OPC or
*OPC?. As soon as the OUT command has completed (output settled), a pending *OPC
command places a "1" in the output buffer to be read by the controller.
OPER
Description
Overlapped command, ignored if not in remote.
Activates the Calibrator output if in standby. OPER is inhibited for outputs 22V and over,
if there are faults in the fault queue (see "Fault Queue").
Parameter None