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Remote control commands
R&S
®
NRPM
98
User Manual 1425.8663.02 ─ 07
The query form returns a "1" when all previous commands have been processed.
It is important that the read timeout is set sufficiently long.
Since
*OPC?
waits until all previous commands are executed, "1" is returned in all
cases.
*OPC?
command, but
does not return a
response.
*OPC?
because with
*OPC?
, the execution of commands can
be queried from a controller program before new commands are sent. This pre-
vents overflow of the input queue when too many commands are sent that cannot
be executed.
*OPC?
must be sent at the end of a program message.
*OPT?
OPTion identification query
Returns a comma-separated list of installed options.
Usage:
Query only
*PRE
<register>
Parallel poll Register Enable
Sets the parallel poll enable register to the specified value or queries the current
value.
Parameters:
<register>
Range:
0 to 255
*RST:
0
*RCL
<number>
ReCaLl
Calls the device state which has been stored with the
command under the
specified number.
Common commands