Relay Driver Module Command Reference
87
TRIGger:SOURce <source>
Specifies the trigger
source
to advance the channel list during scanning.
Parameters
Comments
•
Enabling the Trigger Source:
The TRIGger:SOURce command only selects
the trigger source. The INITtate[:IMMediate] command enables the trigger
source. The trigger source must be selected using the TRIGger:SOURce
command before executing the INIT command.
•
One Trigger Input Selected at a Time:
Only one input (ECLT0 or1;
TTLTrg0, 1, 2,3, 4, 5, 6 or 7; or EXTernal) can be selected at one time.
Enabling a different trigger source will automatically disable the active input.
For example, if TTLTrg1 is the active input and TTLTrg4 is enabled,
TTLTrg1 will become disabled and TTLTrg4 will become the active input.
•
Using the TRIGger Command:
You can use TRIGger[:IMMediate] to
advance the scan when TRIGger:SOURce BUS or TRIGger:SOURce HOLD
is set.
•
Drivers Must be Downloaded (Does not Apply to Embedded Computers):
TRIG:SOURce EXTernal is available only if the ZSWITCHBOX or Agilent
E1339 driver has been downloaded to the Agilent E1406 Command Module. If
you do not use the Command Module or have not downloaded one of these
drivers to the Command Module, a "Trigger source non-existent" error is
generated.
•
Using External Trigger Inputs:
With TRIGger:SOURce EXTemal selected,
only one switchbox at a time can use the external trigger input at the E1406
Command Module "Trig In" port. The trigger input is assigned to the first
switchbox that requested the external trigger source (with a TRIGger:SOURce
EXTernal command).
•
Using TTL or ECL Trigger Bus Inputs:
These triggers are from the VXI
backplane trigger lines ECL[0,1] and TTL[0-7]. These triggers may be used to
trigger the Agilent E1339A driver from other VXI instruments.
Parameter Name
Parameter Type
Parameter Description
BUS
discrete
*TRG or GET command
ECLT
n
numeric
ECL Trigger bus line 0 or 1
EXTernal
discrete
"Trig In" port
HOLD
discrete
Hold triggering
IMMediate
discrete
Immediate triggering
TTLTrg
n
numeric
TTL Trigger bus line 0 - 7
Содержание E1339A
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Страница 21: ...20 Getting Started ...
Страница 47: ...46 Using the Relay Driver Module ...
Страница 81: ...80 Relay Driver Module Command Reference Figure 5 1 Relay Driver Module Status System Register Diagram GPIB ...
Страница 95: ...94 Relay Driver Specifications ...
Страница 103: ...102 Relay Driver Register Definitions ...
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