EXFO FLS-5800 CD/PMD Analyzer Source - Manual (Page 75)

Remote Control Commands
CD/PMD Analyzer Source 69
IEEE 488.2 Commands—Description
*OPC
Description The *OPC command allows synchronization
between the instrument and an external
controller.
The *OPC command causes the instrument to
set bit 0 (Operation Complete) in the Standard
Event Status Register to the TRUE (logic 1) state
when the instrument completes all pending
operations.
Detection of the Operation Complete message
can be accomplished by continuous polling of
the Standard Event Status Register using the
*ESR? common query command. However,
using a service request eliminates the need to
poll the Standard Event Status Register thereby
freeing the controller to do other useful work.
Syntax *OPC
Parameter(s) None
See Also *OPC?
*WAI