The ETHMODBUSI32 is a 32channel digital input extension module for PLC systems. It uses Modbus RTU protocol over RS485 and is designed as an extensible IO module for digital switch acquisition. Key benefits Increases input capacity without replacing the main controller by adding 32 digital input channels. Reliable industrial communication via Modbus RTU over RS485 with a standard protocol that integrates with compatible PLCs and controllers. Extensible architecture that allows you to expand your control system with additional IO modules as needed. Simple integration into existing Modbus networks and PLC setups, reducing wiring and commissioning time. Clear digital input sampling for status monitoring, automation logic, and data logging. Key attributes Functionality: 32channel digital input switch acquisition IO module Protocol: Modbus RTU Interface: RS485 Extensibility: PLC extension module designed to be expanded with additional IO modules Compatibility: Intended for use with PLCs and controllers that support Modbus RTU over RS485 networks Model: ETHMODBUSI32 Application: Digital input acquisition for industrial automation and data collection Applications (use cases) Factory floor monitoring: Connect 32 digital inputs from push buttons, limit switches, and sensor signals to a PLC via Modbus RTU over RS485 to drive control logic, alarms, and process sequencing. Process automation and safety interlocks: Use the 32 input channels to monitor machine states, door/status sensors, and start/stop signals, with realtime state reporting to the control system. Building management and energy control: Integrate 32 digital inputs from occupancy sensors, door contacts, and status indicators into a Modbus RTUenabled control network for centralized monitoring and automation decisions. Connectivity and integration notes The module communicates over RS485 using the Modbus RTU protocol. It is designed as an extensible PLC I/O module to be polled by a Modbus master device. Works with PLCs and controllers that support Modbus RTU; the 32 inputs are read through the device's Modbus map as part of routine data polling and processing. Suitable for integration in industrial control panels requiring scalable digital input acquisition with a Modbus RTU interface.