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Chapter 5 Remote Interface Reference
Scanning Commands
5
Scanning Commands
These commands enable the scan, stop the scan, and provide triggers for
arm and trigger layer sources.
INITiate
This command takes the instrument out of the idle state and moves it to
the arm layer. If the
ARM:SOURce
is set to
IMMediate
, the instrument
moves directly to the trigger layer. If the
TRIGger:SOURce
is set to
IMMediate
, the scan begins.
You must always send the
INITiate
command to move the instrument
out of the idle state, regardless of the arm and trigger sources used. For
example, if you set the arm source to
EXTernal
, the instrument will not
move to the trigger layer until the
INITiate
command is received and
then an external trigger occurs.
ABORt
This command stops a scan in progress. This command does not affect
the scan configuration or the scan list. A reset (
*RST
) command will also
stop a scan in progress, but the scan configuration and scan list are lost.
When a scan is aborted, the channel last scanned before the interruption
will remain closed. A scan cannot resume from where it is interrupted.
TRIGger[:IMMediate]
This command is used as a trigger source in the arm or trigger layer
when the
SOURce
is set to
HOLD
.
*TRG
This IEEE-488.2 common command is used as a trigger source in the
arm or trigger layer when the
SOURce
is set to
BUS
.