+- Logic Machine Forum (https://forum.logicmachine.net)
+-- Forum: LogicMachine eco-system (https://forum.logicmachine.net/forumdisplay.php?fid=1)
+--- Forum: Hardware (https://forum.logicmachine.net/forumdisplay.php?fid=12)
+--- Thread: Transient protection of modbus (/showthread.php?tid=4916)
Transient protection of modbus - ClausP - 09.08.2023
Hello everyone.
Im in the sad situation, that my wisers modbus 485 connection seams to have been fried by the transient voltage of a lightning.
I think the transient has been induced from the surronding cables.
Now the insurance, are about to change the wiser, but in the future I would love to protect my installation against the same situation.
So I wondered if it is possible to mount a varistor accross the modbus terminals and earth?
RE: Transient protection of modbus - admin - 10.08.2023
A complete lightning protection circuit has extra components in addition to varistors. There are some ready-made protection devices but we haven't tested any of them.