i have an installation that has been running fine for 4 months now, nothing changed but since a couple of days i expierence strange behaviour.
After some time (not after a fixed period of time) the system can not comunicate with a handfull of modules anymore, about halfe of the modules do not respond to a scan packet anymore.
When i power off the installation and power it back on (the dc current only) everything works fine for some time, and then we get into the same situation and i have to cut the pwoer again