Table of Contents
Advertisement
8-12
1.
2.
A.
B.
C.
Press EX TRIG to place the Model 2790 in the external trigger mode.
Press STEP on the Model 7002 to take it out of idle and start the scan. The scan-
ner's output pulse triggers the Model 2790 to take a reading, store it, and send a
trigger pulse. The following explanation on operation is referenced to the operation
model shown in
Figure
Figure 8-8
Operation model for triggering example
Model 7002
2
Press STEP to start scan
Idle
Bypass
Wait for
Trigger Link
Trigger
Scan
C
Channel
Output
D
Trigger
No
Scanned
400
Channels
?
Yes
Pressing EX TRIG on the Model 2790 places it at point A in the flowchart, where it
is waiting for an external trigger.
Pressing STEP on the Model 7002 takes it out of the idle state and places operation
at point B in the flow chart.
For the first pass through the model, the scanner does not wait at point B for a trig-
ger. Instead, it closes the first channel.
Model 2790 SourceMeter
8-8.
B
Trigger
Trigger
®
Switch System Reference Manual
Model 2790
1
Press EX TRIG
A
Wait for
Trigger Link
Trigger
E
Make
Measurement
Output
F
Trigger
Advertisement
Table of Contents
