I have a ventilation system with heat exchanger that can be interfaced via modbus. Thing is that the heat exchanger unit act as the modbus master and the control panels are all slaves, polled by the master. If I understand it correctly (I have limited experience with modbus tcp) I need to set up HA to somehow act as a modbus slave under the heat exchanger(?). Does the HA modbus platform support acting as a modbus slave?
/hevi