Trigger - Keithley 2002 Getting Started Manual

Trigger

The following overview is intended to acquaint you with basic triggering. For a complete ex-
planation, see the Model 2002 User's Manual. The simplified model for triggering is shown in
Figure 9. It is known as the trigger model.
Figure 9
Simplified
trigger model
Idle
The instrument is in idle whenever it is not within one of the layers of the model. The front
panel ARM indicator is off when in idle.
When the Model 2002 is taken out of idle by pressing TRIG (or sending :INIT or
:INIT:CONT ON over the bus), the ARM indicator turns on and operation proceeds into the Arm
Layer.
Idle
Arm
Layer
Arm
Event
Scan
Layer
Scan
Event
Measure
Layer
Measure
Event
Device
Action
Measurement Options
No
Yes Another Arm
Arm Count
?
No
Yes Another Scan
Count
Scan
?
No
Another
Measure
Yes
Measure-
Count
ment
?
Output
Trigger
2-11