Technical data

9 Triggering Commands
96 U2761A Programmer’s Reference
TRIGger[:SEQuence]:SOURce
Syntax
TRIGger[:SEQuence]:SOURce {IMMediate|EXTernal|BUS|STRG}
This command sets the source from which the U2761A will accept a
trigger.
• When the Immediate (internal) source is selected, the U2761A outputs
continuously when the sweep mode is enabled.
• When the External source is selected, the U2761A accepts a hardware
trigger applied to the Trig In connector. The U2761A initiates one sweep
each time Trig In receives a TTL pulse with the specified edge.
• When the Bus (software) source is selected, the U2761A initiates one
sweep each time a bus trigger command is received. You may send the
*TRG command to trigger the U2761A from the remote interface when
the Bus source is selected.
• Star trigger (STRG) is the synchronized trigger source from the U2781A
modular instrument chassis.
TRIGger[:SEQuence]:SOURce?
This query returns the selected trigger source as IMM, EXT, BUS, or STRG.
Parameter
Item Type Range of values Default value
source Discrete IMMediate|EXTernal|BUS|STRG IMMediate
TRIG :SEQ space:SOUR IMM
EXT
BUS
STRG
?