Keithley SourceMeter 2400, User Manual

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11-28 Triggering 2400 Series SourceMeter
®
User’s Manual
The trigger applied to the Model 7001/2 from the SourceMeter closes the next channel in
the scan, which then triggers the SourceMeter to measure that DUT. This process contin-
ues until all 10 channels are scanned and measured.
Remote trigger example
Table 11-2 summarizes the command sequence for basic trigger operation, while Figure
11-12 shows a trigger model flowchart. These commands set up the SourceMeter as
follows:
• Arm layer source: bus
• Arm layer count: 2
• Trigger layer delay: 0.1s
• Trigger layer count: 10
• Trigger layer output events: source and sense
• Trigger layer trigger link output line: 1
After the unit is set up, :INIT is sent to take the unit out of idle. *TRG is sent to trigger the
unit, after which it cycles 10 times through the trigger layer. A second *TRG is required to
trigger the unit the second time, and it then completes the second cycle through the trigger
layer.
NOTE You must allow sufficient time between the first and second *TRG commands, or
the second trigger will be ignored.
Table 11-2
Commands for remote triggering example
Command Description
*RST
:SOUR:VOLT 10
:ARM:SOUR BUS
:ARM:COUN 2
:TRIG:DEL 0.1
:TRIG:COUN 10
:TRIG:OUTP SOUR,SENS
:TRIG:OLIN 1
:OUTP ON
:INIT
*TRG
*TRG
:OUTP OFF
:FETC? Restore GPIB defaults.
Source 10V.
Select bus arm layer source (*TRG command).
Arm layer count = 2.
0.1s trigger layer delay.
Trigger layer count = 10.
Source, sense output trigger events.
Trigger output line = #1.
Turn on output.
Take unit out of idle.
Trigger first sequence.
Trigger second sequence.
Turn off output.
Request readings.
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