You can use the DI Pause Trigger (di/PauseTrigger) signal to pause and resume a measurement acquisition. The internal sample clock pauses while the external trigger signal is active and resumes when the signal is inactive. You can program the active level of the pause trigger to be high or low.

Some C Series modules can generate a trigger based on an analog signal. In NI-DAQmx, this is called the Analog Comparison Event.

Using a Digital Source

To use DI Pause Trigger, specify a source and a polarity. The source can be either from PFI on an installed C Series module or one of several other internal signals on your cDAQ chassis. Refer to Device Routing in MAX topic in the NI-DAQmx User Manual for more information.

Using an Analog Source

When you use an analog trigger source, the internal sample clock pauses when the Analog Comparison Event signal is low and resumes when the signal goes high (or vice versa).

Note Depending on the C Series module capabilities, you may need two modules to utilize analog triggering.
Note Pause triggers are only sensitive to the level of the source, not the edge.