Hey im having issues with energy meter not appearing in device list and think comms cable is the problem. Initially an ET340 meter was used but with constant drop outs has caused the client major issues. I was instructed to replace it with an EM24 suspecting faulty meter but that wont show up in the device list and further investigation leads me to believe that the cat5 connecting to rs485 between cerbo and meter is the issue, its a 30meter run and is also run inside the same conduit as AC, not good at all!
I will re-run cat cable but have read I need to use a 120ohm resistor at the meter side between 41 and 42 as well as connect green to orange and brown to yellow of the rs485 cable.
Anyone has a long run like this from cerbo to EM24? Or perhaps I re-run comms and try the ET340 again.
Thanks!
