Waveshare RS485 TO POE ETH (B)
Industrial Serial Server, RS485 To RJ45 Ethernet, TCP/IP To Serial, Rail-Mount Support, With POE Function RS485 To RJ45 Ethernet Module
Rail-mount RS485 serial server
Version Options
RS485 TO ETH (B)
Common Ethernet port
RS485 TO POE ETH (B)
PoE Ethernet port + Electrical isolation
These two versions are the same in software functions, while RS485 TO POE ETH (B) is the hardware upgrade version, support PoE Ethernet port power supply, with power and signal isolation protection, which is safer for industrial applications.
Features At A Glance
This is an RS485 device data acquisitor / IoT gateway designed for the industrial environment. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, etc. The module features RS485 and Ethernet port(POE function is optional), uses screw terminals for power input. Rail-mount case design, small in size, easy to install. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring...
Specifications
| PRODUCT | RS485 TO ETH (B) | RS485 TO POE ETH (B) |
|---|---|---|
| Product Type | Serial server, Modbus Gateway, MQTT Gateway | |
| Basic Function | Bi-directional transparent data transmission between RS485 and Ethernet | |
| Communication interface | RS485 port x 1, Ethernet port x 1 | |
| Power supply | 9 ~ 24V DC screw terminal | 6 ~ 36V DC screw terminal, or PoE port |
| Isolation Protection | N/C | Power isolation, Signal isolation |
| COMMUNICATION | ||
| Ethernet | common network port | PoE network port, support IEEE 802.3af standard |
| 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection | ||
| Serial port | RS485 | Isolated RS485 |
| SERIAL SPECIFICATION | ||
| Baudrate | 300 ~ 115200 bps | |
| Parity bit | none, odd, even, mark, space | |
| Data bit | 5 ~ 9 bits | |
| Flow control | N/A | |
| SOFTWARE | ||
| Protocol | ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS | |
| Configuration | host, web browser, device management functions library | |
| Communication method | TCP/IP direct communication, VCOM | |
| Operating mode | TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast | |
| ENVIRONMENT REQUIREMENT | ||
| Operating temperature | -40℃ ~ 85℃ | |
| Storage temperature | -40℃ ~ 100℃ | |
| Humidity range | 5% ~ 95% relative humidity | |
| Dimensions | L × W × H: 87 × 36 × 59 mm | |
Primary Function
Bi-Directional Transparent Data Transmission Between RS485 And Ethernet
Rail-Mount Support
Easy To Combine Multi Rail-Mounted Serial Server Together, More Freely
Modbus Gateway Support
Suitable For Modbus Gridding Upgrade, Can Be Used With 3D Configuration Software
Multi Communication Modes
Supports TCP Server / TCP Client / UDP Mode / UDP Multicast
MQTT/JSON To Modbus
More Flexible Conversion Between Different Protocols
When used as an MQTT gateway, the devices can upload serial data to the MQTT server by MQTT protocol through transparent transmission, supported servers including Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. The acquired Modbus RTU or non-standard serial data can be parsed into JSON format and packaged into an MQTT data packet for uploading.
When used as a JSON data acquisition gateway, the devices can be connected to data acquisition instruments through an RS485 connection, then acquire data automatically, convert the data into JSON format, and finally post it to the server. The acquired data supports Modbus RTU 645-instrument-97 version, and 645-instrument-07 version, as well as sorts of non-standard RS485 protocols. The uploaded data format can be configured via the host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, and so on.
Multi Hosts Roll-Polling Support
Different Network Devices Will Be Identified And Responded Respectively,
No More Crosstalk Issue While Communicating With Multi Network Devices
User-Defined Heartbeat/Registration Packet
Easy For Cloud Communication And Device Identification
NTP Protocol Support
Getting Network Time Info For Serial Output Or Data Upload
Multi Configuration Methods
Supports Web Browser Configuration, Obtaining Dynamic IP Via DHCP,
DNS Protocol Connected Domain Server Address
Interface Introduction
* for the power supply range, please refer to the label of the corresponding version.
Outline Dimensions
Resources & Services
Wiki: www.waveshare.com/wiki/RS485_TO_ETH_(B)
Wiki: www.waveshare.com/wiki/RS485_TO_POE_ETH_(B)
Selection Guide
| RS485 TO ETH | RS485 TO ETH (B) | RS485 TO POE ETH (B) | RS232 TO ETH (B) | RS232 TO POE ETH (B) | RS232/485/422 TO POE ETH (B) | RS485 TO WIFI/ETH | RS232/485 TO ETH | |
|---|---|---|---|---|---|---|---|---|
| ETHERNET | ||||||||
| RJ45 Ethernet | 10/100Mbps auto-negotiation | |||||||
| POE | - | supported | - | supported | - | |||
| WIFI interface | - | 802.11b/g/n 2.4GHz | - | |||||
| UART | ||||||||
| Type | RS485 | RS232 | RS232/485/422 | RS485 | RS232+RS485 (allows concurrent operation) | |||
| Baudrate | 600bps~230.4Kbps | 300bps ~ 115.2Kbps | 300bps ~ 460.8Kbps | 600bps~230.4Kbps | ||||
| Hardware flow | NOT supported | supported | ||||||
| Data bit | 5, 6, 7, 8 | |||||||
| Stop bit | 1, 2 | |||||||
| Parity bit | None, Even, Odd, Space, Mark | |||||||
| INTERFACE PROTECTION | ||||||||
| Power supply | reverse-proof, ESD protection, anti-surge | |||||||
| Ethernet | 1.5KV electromagnetic isolation | |||||||
| RS485 | 2KV ESD protection, 2.2KΩ pull up/down registers | 2KV anti-surge | 600W anti-surge, lightningproof, anti-electrostatic 15KV | anti-surge, lightningproof, over-current protection | 2KV ESD protection, 2.2KΩ pull up/down registers | |||
| Other | - | - | Power isolation, signal isolation protection | - | lightningproof, over-current protection | |||
| OPERATING MODE | ||||||||
| Type | TCP Server, TCP Client, UDP Server, UDP Client, etc. | |||||||
| TCP Server | customizable 1~16 Clients | supports 30 Clients | supports 24 Clients | supports 2-ch Socket, 8 Clients per ch | ||||
| MISC | ||||||||
| Features | customized heartbeat packets, customized registration packets, customized webpage, RFC2217-like protocol, KeepAlive, timeout auto reboot, short connection, firmware upgrade via network | |||||||
| - | Modbus gateway, MQTT/JSON to Modbus | Modbus gateway, MQTT, HTTP Client | Modbus gateway, Websocket (webpage to serial) | |||||
| Configuration | Built-in webpage, Host computer config software, Serial commands | |||||||
| Power supply | 5~7V | 9~24V | 6~36V | 5~36V | ||||
| Operating current | 110mA@5V | 15mA@12V | 39mA@12V | 20mA@12V | 40mA@12V | 127mA@5V | 86.5mA@5V | |
| Operating temp. | -25～75℃ | -40～85℃ | ||||||
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