Hi everyone,
I am getting upset since I can't solve a simple problem and convert my working full old-school system into a Labview-automated one.
My Labview setup is made of the following components :
LabView 7.1
DAQmx 7.4
Carte PCI 6221
Bornier BNC 2110
(+ others, imaq ieee1394,and camera, and motor + motion controller which gives the
I would like to trigger a part of my VI with a low to high digital trigger transition.
I tried the following without sucess :
VI event response.vi : doesn' t work, since low to high logic level transition is not yet supported by M series cards and DAQmx 7.4 (found on the forum).
Timed loop + digital edge detection : impossible because I have little spikes (amplitude 0,0012V) which are detected and counted as I don' t want them (counter jumps from 1 to a thousand of counts when I have a high to low transition. I am currently looking for a solution to supress these spikes but could' nt find any help about which component to use ( I suspect a capacitor is needed, but I am a noobie in electronics so I don' t know how to calculate its value)
Am I compelled to revert to traditional DAQ and use occurences ? Currently, I even don' t know how the VI would be made.
At last, I could'nt find a way to use analog inputs in DAQmx to generate a digital raise event which could be used by a timed loop.
I am sure that the trigger is working OK because I can check it works in MAX on any digital input.
Please help me I am getting crazy 🙂
Regards,
Joachim
