Keithley 6514 User Manual

9-14 Triggering
a. Operation of Model 6514 starts at point A in the flowchart, where it waits for an external
trigger.
b. Pressing STEP takes Model 7001/2 out of idle and places operation at point B in the
flowchart.
c. For the first pass through Model, the scanner does not wait at point B. Instead, it closes
the first channel (point C).
d. After the relay settles, Model 7001/2 outputs a trigger pulse. Since the instrument is pro-
grammed to scan 10 channels, operation loops back to point B, where it waits for an
input trigger.
e. and f. With Model 6514 at point A, the output trigger pulse from Model 7001/2 triggers a mea-
surement of DUT #1 (point E). After the measurement is complete, Model 6514 outputs
a trigger pulse and then loops back to point A, where it waits for another input trigger.
The trigger applied to Model 7001/2 from Model 6514 closes the next channel in the scan,
which then triggers Model 6514 to measure that DUT. This process continues until all 10 chan-
nels are scanned and measured.
Idle
Bypass
B
Wait for
Trigger Link
Trigger
Scan
Channel
C
Output
Trigger
Trigger
D
No
Scanned
10
Channels
?
Yes
7001or 7002
Make
Measurement
Made
10
Measurements
?
6514
Press STEP to start scan
A
Wait for
Trigger Link
Trigger
E
Output
Trigger
Trigger
F
No
Yes
Idle
Figure 9-9
Operation model for
triggering example

Keithley 6514 Specifications

General

Brand	Keithley
Model	6514
Category	Measuring Instruments
Language	English