Status
③ DI Edge Detection [di_status_edge.vi]

Select to check the edge detection status of digital input

IN/OUT Terminal layout

Input terminal

Specify the bit which wants to detect the interrupt or trigger edge.

Specify that the number of event occurrences is zero.
Invalid If not connected in the initial state, or specify the False

Output terminal

Return the direction of the last event that occurred.

0: No edge detected
1: Edge (rising) is detected
2: Edge (falling) is detected

If this VI is executed once with the edge detected, 0 is returned until the edge is detected again.
If both rising and falling edges were detected before running this VI, returns 1 or 2 depending on the last detected edge direction

Output the number of event occurrences.
When ClearCount is True, the edge detection count returns to 0 after executing this VI