Modbus RTU Module MR-DIO4/2-IP65 with 4 digital inputs and 2 relay outputs

The Modbus module in an IP65 enclosure with 4 digital inputs and 2 relay outputs was developed for decentralized switching tasks. It is suitable, for example, for connecting light switches and window contacts in a room to control two light strips or for use as a blind control system. It can also control 2 motor-driven fire dampers. In this case, the relay contacts must be protected by appropriate load-dependent measures. The inputs can be operated as contact or voltage inputs. Via a Modbus master, the inputs and outputs can be switched and queried using standard registers. The module address, baud rate, and parity are set using two switches or via software.