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AI Start Trigger Signal

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    Last Modified: January 19, 2018

    Use the Start Trigger signal to begin a measurement acquisition. A measurement acquisition consists of one or more samples. If you do not use triggers, begin a measurement with a software command. Once the acquisition begins, configure the acquisition to stop in one of the following ways:

    • In finite mode, when a certain number of points has been sampled
    • In continuous mode, with a software command

    You can specify a default delay from the Start Trigger to the first sample.

    Use the Start Trigger signal with a time source, by specifying a specific time in NI-DAQmx. Refer to the Time Triggering topic in the NI-DAQmx Help for more information on accessing time-based features in the NI-DAQmx API.


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