The box speaks two languages, but each unit speaks only one — Picking the wrong one produces total silence with no error at all It looks exactly like a broken cable or no power. Try the other page before you rewire anything
Modbus RTUThe model we sellIf you bought from us, start with Modbus RTU first.
If it stays silent, try the other page
Both use the same wiring — RS485 · 9600 8N1 · 12–36 V
View product in the shop