Modbus is widely used in building control mainly in the field of heating and ventilation. The KNX Modbus Gateway 886 enables simple integration Modbus devices which support the Modbus RTU protocol via RS-485.

The Gateway can act as a Modbus Master as well as a Slave. Modbus data is mapped to KNX communication objects and vice-versa compliant to KNX data point types. The assignment between KNX objects and Modbus registers is carried out flexibly via parameters in ETS® software.

The device is for rail mounting with a width of only 1 unit (18 mm). Three coloured LEDs on the front of the device visualize the connection and operation status.