Waveshare Industrial Serial Server, RS485 — Ethernet, TCP/IP

Description

A multifunctional server, including a serial server, Modbus and MQTT gateway, RS485 to JSON conversion, etc. Equipped with RS485 and Ethernet ports, it uses screw terminals for power input and supports a power range of 9 ~ 24 V.

The server is a data collection device and simultaneously functions as an IoT gateway, designed for industrial applications. The server’s design is fireproof, adapted for rail mounting, compact in size, and easy to install. It is suitable for applications involving data collection but can also serve as an IoT gateway. Additionally, it can be utilized in the field of IoT security or smart device monitoring.

Main Advantages

• Adapted for rail mounting
• Can be used as a Modbus gateway
• Multi-communication capability
• Terminal power supply capability
• RJ45 Ethernet
• MQTT and JSON
• Support for multiple hosts
• Multifunctional device
• Host/web page configuration
• High quality, suitable for industrial fields

Primary Function

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

Modbus Gateway Support

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

Multiple Communication Modes

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

MQTT/JSON to Modbus Conversion

Flexible conversion capability between different protocols. If you use the server as an MQTT gateway, devices can send serial data to the MQTT server using the MQTT protocol through transparent transmission. Supported servers include Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. The received Modbus RTU data or non-standard serial data can be parsed into JSON format and packaged into MQTTdata before sending.

If you use the server as a JSON data collection gateway, devices can be connected to instruments for data collection via RS485 connection. You can then automatically receive data, convert it to JSON format, and ultimately send it to the server. The received data supports Modbus RTU protocols 645 instrument 97 version, 645 instrument 07 version, as well as 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.

Roll-Polling Support for Multiple Hosts

The server has the ability to identify various network devices and respond to them. When communicating with multiple network devices simultaneously, there are no interceptions.

OUTLINE

• Communication interface: RS485, screw terminal, supports 32 sub-devices
• Power: 9 ~ 24 V DC, screw terminal
• Dimensions: L x W x H: 87 x 36 x 59 mm

COMMUNICATION

• Ethernet: 10 / 100M with auto-negotiation RJ45, 2 KV surge protection
• Serial port: RS485 × 1: RXD, TXD, GND

SPECIFICATION OF SERIAL PORT

• Baud rate: 300 ~ 115200 bps
• Parity bit: none, odd, even, mark, space
• Data bits: 5 ~ 9 bits
• Flow control: not available

SOFTWARE

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

Additional information

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