Generates a trigger signal and initiates a sweep under the
following conditions.
10. Trigger source is set to the BUS (set by the command
TRIG:SOUR BUS), otherwise an error occurs and the
command is ignored.
11. Analyzer must be in the trigger waiting state, otherwise (the
analyzer is in the measurement state or in the hold state) an
error occurs and the command is ignored.
As opposed to the TRIG command this command is pending till the
end of the sweep. The end of the sweep initiated by the TRIG:SING
command can be waited using the *OPC? query.
(no query)