Triggering with a Digital Source
Your DAQ device can generate a trigger on a digital signal. You must specify a source and an edge. The digital source can be any of the PFI or RTSI <0..6> signals.
The edge can be either the rising edge or falling edge of the digital signal. A rising edge is a transition from a low logic level to a high logic level. A falling edge is a high to low transition.
The following figure shows a falling-edge trigger.
You can also program your DAQ device to perform an action in response to a trigger from a digital source. The action can affect the following: