The WIN-IO-16DIM is a high-density 16-Port Digital Input Module supporting both 3–40V DC potential detection and potential-free input sensing using an internal 12V DC reference. It communicates via Modbus RTU over RS485, ensuring seamless integration with PLC, SCADA, BMS, and industrial automation systems. Housed in a closed enclosure, the module is designed for long-term reliability and noise-immune signal acquisition in industrial environments.