Overview

The RS485 TO ETH module provides an easy way to communicate between RS485 and RJ45 port Ethernet, it can be configured via webpage.

Features

• M0 series 32-bit ARM processor, fast speed, high efficiency
• 10/100M Auto-MDI/MDIX ethernet interface, regardless of cross-over or straight-through cable
• Configurable RS485 baudrate (600bps~230.4Kbps), supports five parity check options: None, Odd, Even, Mark, Space
• Available working modes: TCP Server, TCP Client, UDP Server, UDP Client, HTTPD Client (supports GET and POST)
• Configurable via webpage, AT commands, serial protocol, and network protocol, provides configuration protocol which can be integrated to your own software
• Supports customized heartbeat packets, make sure the connection is truthful, as well as for actively retrieving sensor data
• Supports customized registration packets, auto passing the registered packet as identifier after the connection is established, so that different devices can be distinguished
• Supports customized webpage, allows user to customize the module configuration page
• Supports RFC2217-like protocol, be able to communicate with devices whose serial setting (baudrate, data bit, etc.) may change
• KeepAlive mechanism, detects broken connection, auto re-connecting
• Supports time-out reboot (no-data reboot), ensures a long-term stable connection, configurable reboot time
• Supports DNS domain name resolution, configurable DNS server
• Supports DHCP, auto-obtained IP or static IP
• Firmware is upgradable via the network
• Restore to factory settings via software and/or hardware
• Comes with default MAC address, which is customizable
• Provided software: module configuration software, TCP/UDP testing tool, VCOM virtual serial port software
• Example code: host computer (socket ), VB, C++, Delphi, Android, iOS, etc.

Specifications

• Ethernet:
  • Connector: 4-pin RJ45
  • Communication rate: 10/100Mbps
  • Interface protection: 1.5KV electromagnetic isolation
  • Protocols: IP, TCP, UDP, ARP, ICMP, DHCP, DNS, HTTPD Client
  • TX cache: 6Kbyte
  • RX cache: 4Kbyte
• RS485:
  • Connector: screw terminal (A+, B-, GND)
  • Data bit: 5bit, 6bit, 7bit, 8bit
  • Stop bit: 1, 2
  • Parity bit: None, Odd, Even, Mark, Space
  • Baudrate: 600bps~230.4Kbps
  • RX cache: 800byte
  • Hardware flow control: none
  • Interface protection:
    • 2KV ESD protection
    • RS485 pull up/down registers: 2.2KΩ
• Power:
  • Power supply: 5.0~7.0V (5V recommended)
  • Operating current: 150mA (@5V)
  • Power consumption: <1W
  • Interface protection: reverse-proof, ESD protection, anti-surge
• Environment:
  • Operating temperature: -25~75°C
  • Storage temperature: -40~105°C

DimensionsDevelopment Resources

Wiki : www.waveshare.com/wiki/RS485_TO_ETH

Selection GuideCOMPARISONUART TO ETHRS485 TO ETHRS232/485 TO ETHProcessorCortex-M0Cortex-M0Cortex-M4 (up to 120MHz frequency)EthernetRJ45 (10/100Mbps self-negotiation)Protocol: IP, TCP, UDP, ARP, ICMP, DHCP, DNS, HTTPD Client Cache: TX 6Kbyte, RX 4KbyteCache: TX 16Kbyte, RX 16KbyteSerialUARTRS485RS232+RS485 (allow to work at the same time)Baudrate: 600bps~460.8KbpsBaudrate: 600bps~230.4KbpsHardware flow: NOT supportedHardware flow: supportedData bit: 5, 6, 7, 8Stop bit: 1, 2Parity bit: None, Even, Odd, Space, MarkCache: RX 800byteCache: TX 2Kbyte, RX 2KbyteFraming condition: 4 byte time interval, or 400 byte in lengthFraming condition: 4 byte time interval, or customizable 0~1460 byte in lengthFeaturescustomized heartbeat packets, customized registration packets, customized webpage, RFC2217-like protocol, KeepAlive, timeout auto reboot, short connection, firmware upgrade via networkModbus is not supportedModbus gateway, Websocket (webpage to serial)Working ModesTCP Server, TCP Client, UDP Server, UDP Client, HTTPD ClientClient Counton TCP Server mode, customizable 1~16 Clientson TCP Server mode, supports 2-ch Socket, 8 Clients per chConfigurationBuilt-in webpage, Host computer config software, Serial commandsInterface ProtectionPower: reverse-proof, ESD protection, anti-surgeEthernet: 1.5KV electromagnetic isolation RS485: 2KV ESD protection, 2.2KΩ pull up/down registers　 lightning-proof, over-current protectionPower Supply3.3V/5V5~7V5~36VOperating Current150mA@5V110mA@5V86.5mA@5VTemperatureOperating Temperature: -25～75℃ Operating Temperature: -40～85℃ Storage Temperature: -40～105℃ Dimensions50.5mm × 22.6mm × 15mm70mm × 63.6mm × 25mm82.8mm × 85.7mm × 25mm