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4 Using the Measurement Functions
Trigger Source
BNC Trigger In
Remote Command
If a trigger source is grayed out, it is unavailable. For example, current levels are not available as
trigger sources on outputs that have been grouped (paralleled). Note also that a trace must be turned
on for it to be used as a trigger source.
Level - specifies a trigger level if you selected a Voltage level or Current level as the trigger source.
Along with the level, you must also specify a slope.
Slope - specifies if the measurement will be triggered on the positive (up-slope) or negative (down-
slope) portion of the waveform.
Trigger Position % of Duration - specifies a trigger offset. This allows the specified percent of pre-
trigger data to be logged to the file. The trigger position is expressed as a percentage of the data log
duration. For example, if you specified a data log duration of 30 minutes and a trigger position of 50%,
the Data Logger will log 15 minutes of pre-trigger data to the file before the trigger occurs.
Subsequently, 15 minutes of post-trigger data will then be logged to the data file.
From the remote interface:
To select the immediate trigger source (triggers the Data Logger immediately when initiated):
TRIG:DLOG:SOUR IMM
To select the rear panel trigger input BNC connector:
TRIG:DLOG:SOUR EXT
To select a BUS trigger source:
TRIG:DLOG:SOUR BUS
To select a voltage level of another output as the trigger (output 3 will generate the voltage level
trigger):
TRIG:DLOG:SOUR VOLT3
To select a current level of another output as the trigger (output 4 will generate the current level
trigger):
TRIG:DLOG:SOUR CURR4
To select the Arb Run/Stop key as the trigger source:
TRIG:DLOG:SOUR ARSK
To select the Output On/Off key as the trigger source for output 1:
TRIG:DLOG:SOUR OOOK
162
Description
Provide a low-true signal to the BNC trigger input connector. Refer to
acteristics
for minimum pulse width. Selecting BNC Trigger In also enables any digital I/O pins
configured as
Trigger
Outputs.
Send a trigger command over one of the three interfaces (i.e. *TRG).
Supplemental Char-
Keysight N6705C User's Guide
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