8-6
Triggering
Model 6220/6221 Reference Manual
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Trigger-In source
— The Trigger-In control sources, which control individual
sweep steps, are explained as follow:
•
IMMEDIATE
(TRIGger:SOURce IMMediate) — Event detection for the trig-
ger layer is satisfied immediately allowing operation to continue to perform
a sweep step.
•
TRIGGER LINK
(TRIGger:SOURce TLINk) — Event detection for the trig-
ger layer is satisfied when an input trigger via the TRIGGER LINK connec-
tor is received by the Model 622x. Note that if the source bypass is set to
ONCE (TRIGger:DIRection SOURce), operation will loop around the
source detector on the initial pass through the arm layer. Detection for each
subsequent pass is satisfied by an input trigger. The bypass resets when
the Model 622x leaves the trigger layer.
•
TRIGger:SIGNal (remote only)
— Used as a one-time bypass for the
TRIGGER layer control source and move on to the next layer in the trigger
model (the device action in this case).
Device action
The device action block of the trigger model is where a sweep step is performed
(
). Each step sets the current source to the programmed value, and the
unit then waits the programmed sweep delay before going on to the next step. See
for more information.
Figure 8-3
Device action block of trigger model
Device Action
Set Source
to Step Value
Wait Sweep
Delay Period
Output Trigger
After Source Phase*
Output Trigger
After Delay Phase*
* If enabled
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