05-09-2017 01:13 PM
Dear all,
I am new compactRio so maybe this is trivial for you ...
I have a force sensor connected to my CompactRio (NI 9375 input/output board).
The sensor should send digital pulses of 0 and + 24 Volts to the NI 9375 board.
In my labVIEW application, I have a simple case structure : if the digit input of the NI 9375 receive +24 Volts from the sensor, the application should do certain jobs. otherwise nothing.
I have impression that sometimes I get parasitic signals on this input. so sometimes the case structure is executed even if the condition in not true!
Do you know that this kind of problem is normal ? should I resolve this problem by defining a debouncing time?
Thank you and Bests regards
05-09-2017 01:48 PM
Again, post your code. I'm assuming you're using the scan engine and not FPGA. No, what you're seeing is not common. A 24 volt signal is usually fairly robust. Can you check with a scope or something to see if there's any transients. If so, then, yes, maybe you need to debounce but I've always done that on the FPGA side.