User manual

Front Panel Operation
3-72 2001-900-01 Rev. K/ August 2010
The BENCH RESET condition arms the Model 2001
and places multimeter operation at point A in the flowchart,
where it is waiting for a Trigger Link trigger. Note that since
both the arm layer and scan layer are programmed for
Immediate Source, operation immediately drops down to the
measure layer at point A.
Pressing STEP takes the Model 7001 out of the idle state
and places operation at point B in the flowchart. Since both
the arm layer and scan layer are programmed for Immediate
Spacing, operation drops down to the channel layer at point
B.
Since Channel Trigger Source is set to Source, the scan
does not wait at point B for a trigger. Instead, it bypasses
“Wait for Trigger Link Trigger” and closes the first channel
(point C). Note that the Bypass is in effect only on the first
pass through the model into a layer.
After the relay settles, the Model 7001 outputs a
Channel Ready pulse (point D). Since the instrument is
programmed to scan ten channels, operation loops back up to
point B, where it waits for an input trigger. Note that Bypass
is no longer in effect.
and Remember that the Model 2001 operation is at
point A waiting for a trigger. The output Channel Ready
pulse from the Model 7001 triggers the multimeter to
measure DUT #1 (point E). After the measurement is
complete, the Model 2001 outputs a completion pulse (point
F) and then loops back to point A, where it waits for another
input trigger.
The trigger applied to the Model 7001 from the Model 2001
closes the next channel in the scan. This triggers the
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Operation model for asynchronous trigger link example #1
Idle
Bypass
B
Wait for
Trigger Link
Trigger
Scan
Channel
C
Output
Trigger
Trigger
D
No
Scanned
10
Channels
?
Yes
7001
Make
Measurement
Made
10
Measurements
?
2001
Press STEP to start scan
Arm
A
Wait for
Trigger Link
Trigger
E
Output
Trigger
Trigger
F
No
Yes
A
B
C
D
E
F