Details
With Digital Input
Ethernet Port Communication, Modbus Protocol, PoE Power Supply
This product is an industrial 8-ch relay module controlled via Ethernet port, with 8-ch digital input, adopts Modbus RTU/Modbus TCP protocols, supports PoE power supply, also comes with an ABS rail-mount case.
The Modbus POE ETH Relay (B) is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirements.
- Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically
- Supports DC 7~36V wide range power input and PoE power supply
- Supports relay control through MQTT protocol, comes with Alibaba Cloud MQTT application demo
- Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit
- Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability
- Supports passive and active digital input, with bi-directional optocoupler isolation, built in debouncing algorithm. The relay supports digital input linkage control or toggle control
- Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection
- High quality relay, contact rating: ≤10A 250VAC/30VDC
- Rail-mounted ABS plastic enclosure, easy to install, safe to use
- 4 LEDs and Network indicators for indicating the MCU status and signal transceiving status
Supports reading digital input by sending Modbus RTU protocol commands via Ethernet for relay output control
Supports TCP Server / TCP Client / UDP Mode / UDP Multicast / HTTP / MQTT
Supports Modbus RTU protocol/Modbus TCP protocol
Supports software and Web Browser Configuration, Obtaining Dynamic IP Via DHCP, connecting to domain name server via DNS protocol
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
Supports passive (dry contact) and active (wet contact) digital input, with bi-directional optocoupler isolation
With Multiple LED Indicators, Easy To Monitor The Operating Status
| RUN | Ethernet port indicator, blinking when Ethernet port normally working |
|---|---|
| STA | MCU indicator, blinking when the MCU normally working |
| TXD | TX indicator, lights up when sending data |
| RXD | RX indicator, lights up when receiving data |
| Ethernet port Green Indicator | Lights up when the connection is established |
| Ethernet Port Yellow Indicator | Data activity indicator, blinking when transmitting data |
Supports multiple relay control modes, each channel supports independent
control mode setting
Contact rating of the onboard relay up to 10A 250VAC/30VDC
Directly controlling 220VAC home appliances, or devices below 30VDC
Rail-mounted ABS plastic enclosure, easy to install, safe to use
* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.
| product | Modbus POE ETH Relay | Modbus POE ETH Relay (B) | Modbus POE ETH Relay 30CH | Modbus RTU Relay | Modbus RTU Relay (B) | Modbus RTU Relay (D) | Modbus RTU Relay 16CH | Modbus RTU Relay 32CH |
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| Communication parameters | ||||||||
| Communication interface | Ethernet port (PoE support) | RS485 port | ||||||
| Baud rate | - | 4800，9600，19200，38400，57600，115200，128000，256000 (configurable) | ||||||
| Default communication format | - | 9600, N, 8, 1 | ||||||
| Communications protocol | TCP/UDP/MQTT | RS485 protocol | ||||||
| Modbus protocol | Modbus RTU Protocol or Modbus TCP Protocol | Modbus RTU Protocol | ||||||
| Device address | Unconfigurable, identify the devices by IP address | 1~255 (configurable, supports cascading multiple devices) | ||||||
| control interface | ||||||||
| Output control (DO) | 8-ch relay | 30-ch relay | 8-ch relay | 16-ch relay | 32-ch relay | |||
| Contact form | 1NO 1NC | |||||||
| Contact rating | ≤10A 250VAC/30VDC | |||||||
| DIGITAL INPUT | - | 8DI, 5~36V, passive / active input (NPN or PNP), built-in bi-directional optocoupler isolation | - | 8DI, 5~36V, passive / active input (NPN or PNP), built-in bi-directional optocoupler isolation | - | |||
| Others | ||||||||
| Power Supply | PoE port, DC 5.5*2.1 power port, or screw terminal | DC 5.5*2.1 power port, or screw terminal | ||||||
| Power range | 7~36V wide range | 5V | 7~36V wide range | 5V | 7~36V wide range | |||
| Dimensions | 145×90×40mm | 175×90×40mm | 300×110×60mm | 145×90×40mm | 175×90×40mm | 200×110×60mm | 300×110×60mm | |
| Installation | Standard DIN 35mm rail mounting, wall mounting | |||||||
Weight: 0.292 kg
Quick Overview
Modbus POE ETH Relay (B) x1
