Look for help. A bunch of modbus2-USB rs485 converter

I have a model b PI device. Non-working UART. I install OH 2.3, I configure the USB rs485 Converter the program works and operates the controller. Ustanavlivat new repository openHAB OH 2.4.0~M3-1 (Milestone Build) change the settings for things to work with modbus 2 no communication with the controller. Advise that to do?

We will need more details of you setup.
You say, non working UART…
What settings for the USB converter (port…)
What settings in binding?