HP E1368A - Manual (Page 68)

TRIGger
The TRIGger subsystem controls the triggering operation of the Microwave
Switch modules in a switchbox.
Subsystem Syntax TRIGger
[:IMMediate]
:SOURce BUS | EXTernal | HOLD | IMMediate
:SOURce?
[:IMMediate]
TRIGger[:IMMediate] causes a trigger to occur when the defined trigger
source is TRIGger:SOURce HOLD or TRIGger:SOURce BUS .
Comments
•
Executing the TRIGger[:IMMediate] Command: A channel list
must be defined with [ROUTe:]SCAN < channel_list > and an
INITiate[:IMMediate] command must be executed before
TRIGger[:IMMediate] can trigger the switchbox.
•
HOLD or BUS Source Remains: If selected, the TRIGger:SOURce
HOLD or TRIGger:SOURce BUS commands remain in effect after
triggering the switchbox with the TRIGger[:IMMediate] command.
•
Related Commands: INITiate , [ROUTe:]SCAN
Example Advancing Scan Using the TRIGger Command
This example uses the TRIGger command to advance the scan of a
single-module switchbox from channel 00 through 02. Since
TRIGger:SOURce HOLD is set, the scan is advanced one channel each time
TRIGger is executed.
TRIG:SOUR HOLD Sets trigger source to HOLD.
SCAN (@100:202) Defines channel list.
INIT Begin scan, close channel 00.
loop statement Start count loop.
TRIG Advance scan to next channel.
increment loop Increment loop count.
:SOURce
TRIGger:SOURce BUS | EXTernal | HOLD | IMMediate specifies the
trigger source to advance the channel list during scanning.
Parameters
Parameter Name Parameter Type Range of Values
BUS discrete *TRG command
EXTernal discrete Event In BNC port
HOLD discrete Hold triggering
IMMediate discrete Continuous triggering
Chapter 4 HP E1368A/69A/70A Command Reference 67
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