Keysight N777 C Series Programming Manual page 30

3 Instrument Setup and Status
Example:
Command:
Syntax:
Description:
Parameters:
Response:
Example:
Command:
Syntax:
Description:
Parameters:
Response:
Example:
Command: *OPC?
Syntax: *OPC?
Description: The OPeration Complete query *OPC? parses all program message units in the input queue, sets the operation complete bit
in the Standard Event Status register, and places an ASCII '1' in the output queue, when the contents of the input queue
have been processed.
Taking advantage of this feature, and using *OPC? in a loop to query until the instrument returns 1, can lead to useful gains
in program execution efficiency.
30
1 Not used
0 (LSB) Operation Complete
->
*ESR? +128
*IDN?
*IDN?
The IDeNtification query *IDN? gets the instrument identification over the interface.
none
The identification, for example:
MMMMMMMM
mmmm
ssssssss
rrrrrrrrrr
*IDN? -> Keysight Technologies,N7776C,N71130PP02,V1.000
*OPC
*OPC
Generates the OPC message in the standard event status register when all pending overlapped operations have been
completed.
none
none
*OPC
2
1
manufacturer, for example Keysight Technologies
instrument model number (for example N7776C)
serial number
firmware revision level
Keysight N777xC Series Tunable Laser Family Programming Guide