04.09.2023, 06:00
(01.09.2023, 10:02)admin Wrote: Might be a damaged RS-485 transceiver on of the devices.
Communication errors can appear from time to time if the signal stability is on the edge. The usual recommendation is to connect GND between all devices, use bus wiring topology and connect a termination resistor if the bus is long.
Okay
The bus lenght is about 4 meters, so should'n be a problem. I've used daisy chain topology.
I thing maybee I will just get the insurance to repair it, and the mount a modbus transient protection unit