
Section 5: Switching and scanning
Series 3700A System Switch/Multimeter Reference Manual
5-24
3700AS-901-01 Rev. D/June 2018
Trigger model
When you run a scan, the scan sequence follows a trigger model. The trigger model is shown in the
following flowchart.
In Series 3700A, only scanning operations use the trigger model. Individual open, close, and
measure commands do not affect the trigger model.
The trigger model is used during a scan only. For front panel operation, you use the
SCAN
and
STEP
keys to perform scan actions. For remote operation, you use the scan functions and attributes
commands, for example,
scan.execute()
and
scan.mode
.
You cannot use an external trigger event (for example, digital I/O) for the channel stimulus setting of
the trigger model when using the front-panel STEP key.
Figure 84: Trigger model