Triggering; Triggering With A Digital Source - National Instruments PXI-6040E User Manual

Triggering

Note Not all E Series devices support analog triggering. Refer to Appendix A,
Device-Specific
device.

Triggering with a Digital Source

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A trigger is a signal that causes a device to perform an action, such as
starting an acquisition. You can program your DAQ device to generate
triggers on the following:
• A software command
• A condition on an external digital signal
• A condition on an external analog signal
You can also program your DAQ device to perform an action in response to
a trigger. This action can affect the following:
• Analog input acquisitions
• Analog output generation
• Counter behavior
Information, for information about the triggering capabilities of your
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.
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E Series User Manual