8-channel Ethernet Relay Module with Modbus RTU/Modbus TCP Protocol, PoE Ethernet Communication, Multiple Isolation Protection Circuits, Industrial-grade DIN Rail Enclosure.
 This product is an Ethernet interface-controlled 8-channel relay module specifically designed for industrial environment applications. It adopts Modbus RTU/Modbus TCP protocols, supports PoE Ethernet power supply, and features an ABS DIN rail enclosure design. This product is easy to operate and has characteristics such as fast, stable, reliable, and secure communication. It is suitable for various industrial control equipment or applications with high communication requirements.
 Flash-on and flash-off functions, allowing the relays to be controlled to automatically close for a specified period of time.
 Supports wide voltage power supply of DC 7~36V and PoE Ethernet power supply.
 Supports relay control via MQTT protocol and provides Aliyun MQTT application routines.
 Onboard optocoupler isolation to avoid interference from high-voltage relay circuits.
 Onboard reverse connection protection circuit to prevent circuit damage caused by polarity reversal.
 Uses high-quality relays with a permissible load of ≤10A 250V AC or ≤10A 30V DC.
 DIN rail-mounted ABS protective enclosure for convenient installation and improved safety.
 External 4 LED indicators and Ethernet indicator for easy monitoring of MCU status and signal transmission/reception status
I. Relay Module:
 Power Supply Method: PoE Ethernet port, DC 5.5*2.1 power interface, or wiring terminal (7~36V).
 Communication Interface: PoE Ethernet port, supports IEEE 802.3af standard.
 Number of Relay Channels: 8 channels.
 Contact Type: Normally Open (NO), Normally Closed (NC).
 Contact Load: ≤10A 250V AC or ≤10A 30V DC.
 Modbus Protocol: Modbus RTU Protocol or Modbus TCP Protocol.
RUN: Ethernet operation indicator, blinks every 2 seconds when the chip is working normally.
STA: MCU indicator, blinks when the MCU is working normally.
TXD: Transmission indicator, lights up when sending data.
RXD: Reception indicator, lights up when receiving data.
II. Power Supply:
 Plug Type: US (American) / EU (European) / UK (British).
 Power Specifications: Approximately 1.2m in length, outer diameter of 5.5mm, inner diameter of 2.1mm, DC socket.
 Protection Circuit: Short circuit/overvoltage/over-current protection.
 Input Parameters: AC 100~240V 50/60Hz, low standby power consumption in idle mode.
 Output Parameters: DC 12V 2A, low ripple.
 Safety Certifications: UL/CUL, CE, TUV, SAA, GS.
 Supports control of various devices by sending Modbus RTU/TCP protocol commands through Ethernet.
【Supports Multiple Communication Modes with Modbus Protocol】
 Supports TCP Server/TCP Client/UDP Mode/UDP Multicast/HTTP/MQTT modes.
 Supports Modbus RTU protocol/Modbus TCP protocol
【Multiple Configuration Methods】
 Supports software configuration, web browser configuration.
 Supports DHCP for dynamic IP assignment.
 Supports DNS protocol for connecting to domain name server addresses.
【Multiple Power Supply Options, Wide Voltage Input】
 Power Plug Type: Directly powered using a power plug.
 Terminal Power Supply: DC 7~36V wide voltage input range.
 Ethernet PoE Power Supply: Suitable for IEEE 802.3af PoE standard.
Note: This product does not come with an external power supply by default. If needed, an optional 12V power supply can be selected.
【Interfaces and Indicators】
 Equipped with multiple indicators for easy viewing of module status.
 RUN Indicator: Ethernet operational indicator, the chip is working properly when it blinks.
 STA Indicator: MCU indicator, blinks when the MCU is functioning correctly.
 TXD Indicator: Transmit indicator, blinks when data is being transmitted.
 RXD Indicator: Receive indicator, blinks when data is being received.
 Ethernet Green Light: Illuminates when a connection is established.
 Ethernet Yellow Light: Data activity indicator, changes its status when there is data transmission over the Ethernet.
 The device is equipped with a relay with a contact rating of 10A 250V AC or 10A 30V DC. It can directly control household 220V AC devices and devices below 30V DC.
【DIN Rail Mount Design】
 DIN rail mount ABS protective enclosure for convenient installation and usage. With the enclosure, it provides enhanced safety.
 Suitable for applications such as industrial control, smart homes, smart agriculture, and livestock farming.
 Smart Home Solution: Control the operation and stoppage of household devices such as air conditioners, routers, lighting, computers, and motorized blinds.
 Smart Agriculture Solution : Control the operation and stoppage of agricultural equipment such as solenoid valves, motors, water pumps, and other agricultural devices.
The power supply has three specification options: US standard/ EU standard / UK standard: