Pi counter random values?

[toklobuc]

Hello,

we are using RPi Core3+ to monitor our machine values - using input signals and pi counter.
The problem is the inputs get some random values every couple of shifts, so our data is not reliable. The power to the pi is constant and uninterruptable. The Pi also has its own electrical closet.
Recently I started logging the values and here are the results:


So after normal operation until 21:40 everything was fine, but at 21:41 Counter_3 and Counter_4 got annomalius values. Why?

You can see it on my chart also, along with other input signals annomaly:


Here is my pictory:

[RR4711]

Are you running the latest Firmware on the DIO? And did you update to the latest Kernel / Buster Image?

[toklobuc]

I have made update, upgrade and dist-upgrade on Pi in 12/2020. Can you explain how to upgrade the firmware of DIO?

[RR4711]

Place it as the only module to the left of the RevPi and then

Code: Select all

$ sudo apt-get update

$ sudo apt-get install revpi-firmware

$ piTest -f