Waveshare Industrial serial server with PoE, RS485 to RJ45 Ethernet, TCP/IP

Server with many features including serial server, Modbus and MQTT gateway, conversion from RS485 to JSON, etc. It is equipped with RS485 and Ethernet ports including power over PoE, using screw terminals for power input and supports power supply in the range of 6 ~ 36 V.

The server represents a data collection device and also functions as an IoT gateway intended for use in the industry. The server's design is fire-resistant, adapted for rail mounting, has small dimensions, and is easy to install. The server is suitable for applications where data collection is used but can also serve as an IoT gateway. It can also be used in the field of IoT security or intelligent device monitoring.

Main advantages

• Adapted for rail mounting
• Can be used as a Modbus gateway
• Multi-communication capability
• Terminal power supply option
• RJ45 ethernet with power via 802.3af PoE
• MQTT and JSON
• Support for multiple hosts
• Multifunctional device
• Host/web configuration
• High quality, suitable for industrial areas

Primary functions

The main function of the server is bidirectional transparent data transmission between RS485 and Ethernet.

Modbus gateway support

Suitable for Modbus upgrades, can be used with 3D configuration software.

Multiple communication modes

Supported modes include TCP Server / TCP client / UDP / UDP multicast.

Conversion MQTT/JSON to Modbus

Flexible conversion between various protocols. If you use the server as an MQTT gateway, devices can send serial data to the MQTT server via transparent transmission using the MQTT protocol. Supported servers include Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. The obtained Modbus RTU or non-standard serial data can be analyzed into JSON format and packed into an MQTT data packet before sending.

If you are using the server as a data collection JSON gateway, devices can be connected to data collection instruments via RS485 connection. You can then automatically obtain data, convert it to JSON format, and finally send it to the server. The obtained data support Modbus RTU 645 instrument 97 version, 645 instrument 07 version, and various non-standard RS485 protocols. The format of the sent data can be configured via the host. Protocols such as MQTT, HTTP POST, HTTP GET, etc., can be used for sending JSON.

Support for roll-polling for multiple hosts

The server has the ability to identify different network devices and respond to them. When communicating with multiple network devices simultaneously, there is no cross-talk.

OUTLINE

• Communication interface: 1x RS485 port, 1x Ethernet port
• Power supply: 6 ~ 36 V DC, screw terminal or PoE port
• Protection: power isolation, signal isolation

COMMUNICATION

• Ethernet: PoE network port, support for 802.3af standard
• Ethernet: 10/100M auto-negotiation RJ45 connector, 2 KV surge protection
• Serial port: isolated RS485

SPECIFICATIONS OF SERIAL PORT

• Transmission speed: speed: 300 ~ 115200 bps
• Parity bit: none, odd, even, mark, space
• Data bit: 5 ~ 9 bits

SOFTWARE

• Protocol: PROTOCOL: ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS
• Configuration: host, web browser, device management function library
• Method of communication: direct TCP/IP communication, VCOM
• Operating mode: TCP server, TCP client (coexistence with TCP server), UDP, UDP multicast