© National Instruments | 4-33
X Series User Manual
Using a Digital Source
To use AI Reference Trigger with a digital source, specify a source and an edge. The source can
be any of the following signals:
• PFI <0..15>
•RTSI <0..7>
• PXI_STAR
• Change Detection Event
• Counter n Internal Output
• DI Reference Trigger (di/ReferenceTrigger)
• DO Start Trigger (do/StartTrigger)
• AO Start Trigger (ao/StartTrigger)
The source can also be one of several internal signals on your DAQ device. Refer to Device
Routing in MAX in the NI-DAQmx Help or the LabVIEW Help for more information.
You can also specify whether the measurement acquisition stops on the rising edge or falling
edge of AI Reference Trigger.
Using an Analog Source
When you use an analog trigger source, the acquisition stops on the first rising edge of the
Analog Comparison Event signal.
Routing AI Reference Trigger Signal to an Output Terminal
You can route AI Reference Trigger out to any PFI <0..15>, RTSI <0..7>, PXI_Trig <0..7>, or
PXIe_DSTARC terminal.
All PFI terminals are configured as inputs by default.
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