Agilent Technologies Agilent E5250A - Manual (Page 177)

Agilent E5250A User’s Guide, Edition 11 7-9
Command Reference
*OPC
*OPC
This command starts to monitor pending operations, and sets/clears the Operation
Complete (OPC) bit in the Standard Event Status Register as follows:
• If there is no pending operation, sets the OPC bit to 1.
• If there are any pending operations, sets the OPC bit to 0. The bit will be set to 1
again when all pending operations are completed.
So, *OPC command is required to enable the OPC bit. To stop monitoring pending
operations (disable OPC bit), execute the *CLS command.
For details about the Standard Event Status Register, refer to “Standard Event Status
Register” on page 7-53. Also, see *WAI command.
Syntax *OPC
Query response 1 <newline><^END>
*OPC? places ASCII character 1 into the Output Queue when all pending
operations are completed. For details, refer to “Output Queue” on page 7-55.
Example OUTPUT @Hp5250;"*OPC"
The following example is for query:
OUTPUT @Hp5250;"*OPC?"
ENTER @Hp5250;A