Hello,
I have a Jazz OPLC which I want to use as a MODBUS master, to read from, and write to 3 inverters on an RS485 modbus network.
I have downloaded a U90 sample program from a thread on the foum, which has enabled MODBUS comms on the Jazz. It now reads a value from Node 2 on the network.
Now I cannot get U90 Ladder to re-connect to the Jazz. I know this is because you cannot have 2 comms paths into the Jazz, but how do I put code in there to re-enable RS232 comms?
What do I do?