Armstart trigger set the DAQ card in the status of waiting for start trigger, and start trigger start the task.
the following cards support arm start trigger:
NI-TIO devices, which is the 660x series of devices.
M-Series MIO devices, which is the 62xx series of devices.
C-Series DIO modules placed in slot 5 or 6 of a Compact DAQ 9172 chassis.