Protocols are set not selectable by BLE configuration or Modbus. If Device Address is set to 0x00 (by the switches) then UART2 protocol is set to 015 and the master mode of the JK BMS RS485 Modbus ...

You have field devices (BMS, inverter, thermostat, IO module, thermal pump) that expose valuable status and controls over MODBUS, but your automation stack cannot read them directly or consistently.