Table Of Contents

Analog Input Triggering Signal

    Last Modified: August 30, 2018

    A trigger is a signal that causes an action, such as starting or stopping the acquisition of data. When you configure a trigger, you must decide how you want to produce the trigger and the action you want the trigger to cause. The cRIO controller supports internal software triggering, external digital triggering, analog triggering, and internal time triggering.

    Three triggers are available: Start Trigger, Reference Trigger, and Pause Trigger. An analog or digital signal can initiate these three trigger actions. C Series Parallel digital input modules and the controller’s integrated PFI trigger line can be used in any controller slot to supply a digital trigger. To find your module triggering options, refer to the documentation included with your C Series modules. For more information about using digital modules for triggering, refer to Digital Input/Output with NI-DAQmx.

    Refer to the AI Start Trigger Signal, AI Reference Trigger Signal, and AI Pause Trigger Signal sections for more information about the analog input trigger signals.

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