Several channels with the launch of unique digital dashboard

I have a simple vi where the two analog channels is read in and stored simultaneously in a file of lvm and plotted on a graph of a waveform. I need a numerical advantage to post trigger data for both channels.

I can get this vi to work with one analog channel and the onset of digital edge very well.

When I remove the digital edge trigger, I can get the vi to work with two analog channels. The two signals of ground on a waveform graph and record nicely in the file of lvm.

The question is how do I set up the digital triggering (see table).  The program never enters the while loop. Where I'm going wrong?

Chassis: cDAQ-9172

Analog card: NI 9205 (Source PFI0 the shutter button)

LabView: 8.6

OS: Windows XP


Tags: NI Software

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