Keysight N6700C Series - Page 249

l To be reported to the Standard Event Register, the corresponding bits in the event register must
be enabled using *ESE.
l Once a bit is set, it remains set until cleared by this query or *CLS.
l The value returned is the binary-weighted sum of all bits set in the register.
*IDN?
Identification Query. Returns instrument’s identification string, which contains four comma-separated
fields. The first field is the manufacturer's name, the second field is the instrument model number, the
third field is the serial number, and the fourth field is the firmware revision.
Parameter Typical Return
(none) <ASCII string with comma-separated fields>
Return the instrument's identification string: *IDN?
l Example response: Keysight Technologies,N6700C,MY55123456,E.00.02.2266
*LRN?
Learn Query. Returns a sequence of SCPI commands that can later be used to put the instrument in
the same state that it was in when the *LRN? query was sent. The scope of the returned settings is the
same as for the *SAV and *RCL commands.
Parameter Typical Return
(none) <ASCII string with semicolon-separated fields>
Returns the sequence of SCPI commands: *LRN?
l To read the string into your computer, first dimension a string variable with at least 2500 char-
acters.
*OPC
*OPC?
Operation Complete Command and Query. *OPC sets the OPC (Operation Complete) status bit in the
Standard Event register when the instrument has completed all pending operations sent before *OPC.
This occurs at the completion of the current operation. Refer to Status Tutorial for more information.
*OPC? returns a 1 to the Output buffer when all pending operations complete. The response is
delayed until all pending operations complete.
Parameter Typical Return
(none) 1
Sets the Operation Complete bit: *OPC
Returns a 1 when commands complete: *OPC?
Keysight N6700C Operating and Service Guide 249
5 SCPI Programming Reference