8-Channel Ethernet Relay Module with Modbus RTU and Modbus TCP Protocol Support
The 8-Channel Ethernet Relay Module is an industrial-grade relay control board designed for remote switching and automation applications over network infrastructure. Supporting both Modbus RTU (via RS485) and Modbus TCP (via Ethernet), this module enables seamless integration into PLC systems, SCADA platforms, building automation, industrial control systems and IoT-based monitoring networks.
With eight independent relay outputs, the module allows reliable control of AC or DC loads such as motors, lighting circuits, solenoids and industrial equipment. Ethernet connectivity enables remote configuration and control over LAN, while RS485 ensures compatibility with legacy Modbus RTU networks. Designed for stable operation in industrial environments, it offers secure communication, fast switching response and flexible deployment for automation projects.
Key Features:
- 8 Independent Relay Channels: Control multiple loads simultaneously
- Dual Protocol Support: Modbus RTU (RS485) and Modbus TCP (Ethernet)
- Industrial Ethernet Interface: Reliable LAN-based remote control
- RS485 Communication Port: Long-distance and noise-resistant communication
- High Load Switching Capability: Suitable for AC and DC loads
- LED Status Indicators: Real-time relay and communication status
- DIN Rail / Panel Mount Compatible: Easy industrial installation
- Wide Operating Voltage Range: Stable performance in control cabinets
Basic Function
Supports sending Modbus RTU/TCP protocol commands via Ethernet port to control relay and various devices
Supports Multiple Communication Modes, Adopts Modbus Protocol
Supports TCP Server / TCP Client / UDP Mode / UDP Multicast / HTTP / MQTT
Supports Modbus RTU protocol/Modbus TCP protocol
Multi Power Supply Options, Wide Range Power Input
DC Power port: directly uses a power plug for power supply;
Screw terminal: DC 7~36V wide range power input; PoE port: IEEE 802.3af PoE compliant
The external power supply adapter is NOT included by default, it is recommended to purchase 12V power supply if you need it.
Relay Connection
Contact Rating Of The Onboard Relay Up To 10A 250VAC/30VDC
Directly Controlling 220VAC Home Appliances, Or Devices Below 30VDC
Rail-Mount Case Design
Rail-Mounted ABS Protective Enclosure, Easy To Install, Safe To Use
Dimensions
Package Content:
- Modbus POE ETH Relay x1
