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Models 2500 and 2502 User’s Manual Triggering 10-15

/ ↑↓STEST — Event detection occurs when the SOT line of the Digital I/O port

is pulsed either high or low. After selecting this arm event, you will be

prompted to select the state of the event detection bypass.

– ARM OUT — Use to conﬁgure the arm layer output trigger:

/ LINE — Select the Trigger Link line for the output trigger: line #1, #2, #3, #4,

#5, or #6.

/ EVENTS — Enable (ON) or disable (OFF) the arm layer output triggers.

TRIG-LAYER-DONE ON enables an output trigger on exiting the trigger

layer.

– COUNT — Specify the arm count, FINITE (programmable count) or INFINITE

(never ending count).

• TRIG-LAYER — Use this menu item to conﬁgure the trigger layer of the trigger

model:

– TRIGGER-IN — Use to select the detection event for the trigger layer:

/ IMMEDIATE — Event detection occurs immediately.

/ TRIGGER-LINK — After selecting this trigger-in source, you will be

prompted in sequence as follows:

> TRIG-IN TLINK LINE — Select the input line (#1, #2, #3, #4, #5, or #6)

for the Trigger Link.

> EVENT-DETECT-BYPASS — Set the bypass for the Source Event Detec-

tor. With ONCE, operation will loop around the Source Event Detector.

With NEVER selected, operation will wait for an input trigger.

> TRIGGER-IN-EVENTS — Enable (ON) or disable (OFF) trigger-in events

(SOURCE, DELAY, and MEAS). With a trigger-in event ON, operation

will wait at that event for an input trigger. With the trigger-in event OFF,

operation will not wait. It will simply continue and perform the appropriate

action.

– TRIGGER OUT — Use to conﬁgure the trigger layer output trigger:

/ LINE — Select the Trigger Link line for the output trigger; line #1, #2, #3, #4,

#5, or #6.

/ EVENTS — Enable (ON) or disable (OFF) output triggers that occur after the

SOURCE, DELAY, and MEAS actions.

– DELAY — Specify the time delay (in seconds) for the trigger delay.

– COUNT — Specify the trigger count.

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Keithley 2500 User Manual

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