RS485 Modbus Digital I/O Module – 4 Digital Inputs & 4 Relay Outputs
A compact Modbus RS485 digital I/O module featuring four digital inputs and four relay outputs, designed for reliable remote monitoring and control in industrial automation systems.
This digital I/O module provides a balanced combination of four digital input channels and four relay-based digital output channels, enabling flexible monitoring and control of field devices. Using RS485 communication with the Modbus RTU protocol, it integrates easily with PLCs, SCADA systems, HMIs, and industrial controllers.
The relay outputs allow direct control of external loads such as contactors, solenoids, alarms, and indicators, while the digital inputs are suitable for switches, sensors, and status signals. Its compact industrial design and DIN-rail mounting make it ideal for control panels, machine automation, and distributed I/O applications.
With both RS485 and RS232 communication interfaces, the module supports stable long-distance communication and straightforward system integration.