Keysight 34461A - Page 271

*OPC?
Returns 1 to the output buffer after all pending commands complete. Other commands cannot be
executed until this command completes.
Parameter Typical Return
(none) 1
Configure 100 DC voltage measurements and return "1" when the measurements complete:
CONF:VOLT:DC
SAMP:COUN 100
INIT
*OPC?
l Use this command to synchronize your application with the instrument.
l The difference between *OPC and *OPC? is that*OPC sets a status bit when the operation completes,
and *OPC? outputs "1" when the operation completes.
*OPT?
Returns a string identifying any installed options.
Parameter Typical Return
(none) (see below)
Return the installed options:
*OPT?
l This query returns a string with the following format:
34460A: {GPB|0},{LAN|0},{SEC|0}
34461A: {GPB|0},{SEC|0}
34465A/70A: {GPB|0},{SEC|0},{DIG|0},{MEM|0}
A 0 is returned for options that are not installed. For example, a 34461A with only GPIB installed
returns GPB,0. A 34460A with only GPB and SEC installed returns GPB,0,SEC.
l Options vary by model, as shown here.
SCPI Programming Reference
272
Keysight Truevolt Series Operating and Service Guide