It is possible that the box generates modbus errors because the wiring, between navistem W3000 and the box, is not properly done.
Here-under are our recommendations to clear errors:
- Use appropriate cable like https://fr.farnell.com/van-damme/268014c/cable-1-paire-7-0-2mm-vert-au/dp/1891098?st=268014C
- Connect the box and the navistem W3000 as shown below:
