Resources
Industrial 4 Channel Relay Module With Modbus RTU RS485 RS232 Communication And Isolated Relay Outputs
The Industrial 4-Channel Relay Module is a versatile automation control module designed for reliable switching and remote control of electrical equipment through Modbus RTU communication. Supporting both RS485 and RS232 interfaces, the module enables seamless integration into industrial control systems, PLC networks, SCADA systems, and automation applications. With support for communication baud rates ranging from 2400 to 38400 bps, the module provides flexible deployment across a wide range of industrial environments.
Each of the four relay channels operates independently and features isolated relay contacts, allowing simultaneous control of different AC or DC loads such as solenoid valves, motors, lighting systems, and industrial equipment. The module supports configurable device addresses from 0 to 255, optocoupler isolation for enhanced reliability, four digital switch inputs, and a wide DC 7V to 30V power supply range. Its robust industrial design makes it ideal for factory automation, production line control, building management systems, stage lighting control, hotel automation, and smart electrical control applications.
Key Features
- 4 Independent Relay Channels: Controls multiple loads simultaneously.
- Modbus RTU Protocol: Standard industrial communication protocol.
- RS-485 and RS-232 Interfaces: Flexible communication options.
- Multiple Baud Rates Supported: 2400, 4800, 9600, 19200, and 38400 bps.
- Configurable Device Address: Supports addresses from 0 to 255.
- Isolated Relay Contacts: Independent relay outputs for enhanced safety.
- AC and DC Load Control: Suitable for various electrical devices.
- Wide Supply Voltage Range: Operates from DC 7V to 30V.
- Optocoupler Isolation: Improves communication reliability and protection.
- 4 Digital Switch Inputs: Additional external control capability.
- Fast Relay Switching: Suitable for automation and process control.
- Industrial Grade Design: Reliable operation in demanding environments.
Applications
- Industrial automation systems
- PLC and SCADA control systems
- Production line control
- Motor control systems
- Solenoid valve control
- Factory equipment automation
- Building management systems
- Hotel automation systems
- Smart home control
- Stage lighting control
- Cinema and theatre automation
- Remote electrical equipment management
Package Includes:
- Industrial 4-Channel Relay Modulex1
