MR-DI4 | Modbus RTU 4 Digital Inputs | Contemporary Controls

Modbus RTU 4 digital inputs

Description

The Modbus module with 4 digital inputs is designed for local switching operations. It is suitable to record potential-free switching states as for example electrical limit switches of ventilation valves or auxiliary contacts of power contactors. The inputs can be operated by potential-free switches or contacts and as voltage inputs. The inputs can be scanned via a Modbus-Master. Setting of the slave address, bit rate and parity is done with the two address switches (x1 / x10) on the front. Possible settings are addresses 00 to 99 and baud rates 1200, 2400, 4800, 9600, 19200, 38400, 57600 und 115200 Bd.

The device does not participate in bus communication if the address is 00 (reserved for broadcast commands).