CVS 1457RT and VBAI: Double Digital Output

[Sel-PL]

I have a problem with the CVS 1457RT and the VBAI.

I configured two steps with the VBAI for the CVS.

The first step: I only read out the digital input which should trigger my second step.

the second step: I aquire an image (with a Basler ace) and then I measured 8 distances and count 2 edges. after that I generate a pulse on the digital output once.

After that I made a VI in LabVIEW which measured the time between the I/O.

In this VI and on the module which is connected to the digital output I see that the putput pulses two times  but only some times.

[BruceAmmons · Accepted solution]

I would guess you are getting noise on your digital input and triggering twice, so it runs the inspection twice, giving you two output pulses.

You can implement a digital filter, where the value coming out of the filter doesn't change until the input has remained at the same value for N samples.

Bruce