Relay Module for Modbus RTU 2 Channel RS485 TTL Serial Control Relay Module Board with Optocoupler

Feature： 1. Easy Control： The relay module allows for easy control of larger currents with a small input current, providing automatic regulation, safety guard, and circuit switching functions. 2. Stable Communicating： Equipped with a mature and stable 8 bit MCU and RS485 communicating chip, the relay module uses the standard for MODBUS RTU format for reliable communicating. 3. Versatile Applications： With 2 input signal detection channels and 2 relay outputs, this module is suitable for digital signal detection or power control in a variety of settings. 4. Reliable Performance： The relay board ensures a predetermined step change in the controlled variable when the input signal meets set requirements, making it a dependable component in automation control circuits. 5. Efficient Operating： By utilizing the RS485 communicating protocol, this relay module offers efficient operating and seamless integration into automation systems for improved performance. Specification： Item Type： Relay Module Material： PCB Power Supply Voltage： 5 to 32V Communicating Protocol： Support standard for Modbus RTU protocol Communicating Interface： Support RS485 interface Communicating Baud Rate： 4800, 9600, 19200, default 9600bps, support power off memory Output Signal： Relay switch signal Device Address： Range 1 to 255, default 255, support power off memory. Package List： 1 x Relay Module