The DAM112 remote data acquisition module is designed for harsh industrial applications and is used in a wide range of industrial automation measurement and control systems,for monitoring 4 digital inputs(Dry Contact or Wet Contact, counter)and controlling 4 relay outputs.Remote IO Module DAM112 supports Modbus RTU Protocol over RS485 serial port. It can be used in a variety of industrial automation measurement and control systems as a front-end for data acquisition control, directly connected to various actuators or transmitters, sensors, and detectors. The status signal of the switch can be returned to the host through the digital input, and the digital input has a counting function, which can be used as a pulse counter input;The digital output can control the intermediate relay or indicator output, and supports pulse output.