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TRIGger[:A] Subsystem
2–242
TVS600 & TVS600A Command Reference
TRIGger:LEVel
TRIGger:SOURce
TRIGger:SOURce?
Sets or queries the source of the trigger signal for the trigger A circuit. You can
specify only one source at a time.
Setting source to INTernal1 selects the signal from INPut1 and [SENSe:]VOLT-
age1 as the trigger source. The ECLTrg and TTLTrg sources are digital trigger
signals from the VXI P2 backplane. The EXTernal signal is from the front-panel
BNC connector labeled External Trigger Input.
Many commands in the TRIGger subsystem are dependent on the trigger source
you select. For instance, the TRIGger:LEVel setting is ignored when you set the
trigger source to TTLTrg0. The dependencies for each command are listed with
the command description.
TRIGger[:A]:SOURce <trigger_source>
TRIGger[:A]:SOURce?
<trigger_source> Query response
ECLTrg0
ECLTrg1
EXTernal
INTernal1
INTernal2
INTernal3
1
INTernal4
1
TTLTrg0
. . .
TTLTrg7
ECLT0
ECLT1
EXT
INT1
INT2
INT3
INT4
TTLT0
. . .
TTLT7
1
The selections INTernal3 and INTernal4 are not valid with the TVS621 and TVS625.
INT1
Execution Error –141, “Invalid character data”
Attempted to set trigger source to IMMediate or another illegal value.
Execution Error –241, “Hardware missing”
Attempted to set trigger source to INTernal3 or INTernal4
when the instrument has two channels.
Related Commands
Syntax
Parameters
Reset Value
Errors and Events