With our modules you can extend your current control system and have wider range of I/Os. You can place our modules right next to the system or you can place them separately in i.e. other floor and lead just a communication cable to the PLC. After you connect them and set the address as well as the baud rate (with the dip switches), you are ready to communicate the data via Modbus RTU. This gives you the opportunity to spread the system and save a lot of cabling.