HP E1367A - Manual (Page 58)

Example Scanning Using External Triggers
This example uses external triggering ( TRIG:SOUR EXT ) to scan channels
00 through 03 of a single-module switchbox. The trigger source to advance
the scan is the input to the “ Event In” BNC on an HP E1300A/E1301A
mainframe. When
INIT is executed, the scan is started and channel 00 is
closed. Then each trigger received at the “ Event In” BNC advances the
scan to the next channel.
TRIG:SOUR EXT ! Select external triggering
SCAN (@100:103) ! Scan channels 00 through 03
INIT ! Begin scan, close channel 00
trigger externally ! Advance scan to next channel
Example Scanning Using Bus Triggers
This example uses bus triggering ( TRIG:SOUR BUS ) to scan channels 00
through 03 of a single-module switchbox. The trigger source to advance the
scan is the
*TRG command (as set with TRIGger:SOURce BUS ). When
INIT is executed, the scan is started and channel 00 is closed. Then each
*TRG command advances the scan to the next channel.
TRIG:SOUR BUS ! Select interface (bus) triggering
SCAN (@100:103) ! Scan channels 00 through 03
INIT ! Start scan, close channel 00
loop statement ! Loop to scan all channels
*TRG ! Advance scan using bus triggering
increment loop ! Increment loop count
:SOURce?
TRIGger:SOURce? returns the current trigger source for the switchbox.
Command returns either "BUS" , "EXT" , " HOLD ", or "IMM" for trigger
sources BUS , EXTernal, HOLD , or IMMediate , respectively.
Example Query Trigger Source
This example sets external triggering and queries the trigger source. Since
external triggering is set,
TRIG:SOUR? returns " EXT ".
TRIG:SOUR EXT ! Set external trigger source
TRIG:SOUR? ! Query trigger source
58 HP E1366A/E1367A RF Multiplexers Command Reference Chapter 5