ET69C02 Only Board Ethernet Network IP RJ45 to RS485 Bus Converter for Modbus RTU Master Slave TCP Client Server MQTT PLC

The ET69C02 Ethernet to RS485 Converter Module is a compact and efficient solution for integrating Modbus RTU devices into IP-based Ethernet networks. It acts as a bridge between RS485 serial communication and TCP/IP protocols, supporting both client and server modes. The board is ideal for industrial automation, SCADA systems, PLCs, and IoT applications. With support for Modbus TCP/RTU, MQTT, and other standard protocols, it enables seamless communication between legacy RS485 equipment and modern network infrastructures.

Features

• Ethernet to RS485 Conversion: Supports Modbus RTU to Modbus TCP bridging
• Protocol Support: Modbus TCP, Modbus RTU, MQTT, TCP Client/Server
• Serial Interface: RS485 bus with automatic direction control
• Network Interface: 10/100Mbps RJ45 Ethernet port
• Operation Modes: TCP Server, TCP Client, UDP, HTTPD Client, MQTT Client (connects to cloud platforms or brokers)
• Configuration: Web interface or serial command-based setup
• Power Supply: 5V DC input
• Compact PCB Form Factor: Bare-board design for easy integration
• Wide Compatibility: Works with PLCs, HMIs, SCADA, and industrial controllers
• High Reliability: Stable operation under long-term industrial conditions
• LED Indicators: For power, Ethernet link, and data transmission

Resources

• Setup Tool
• Software User Manual

Pinouts

Applications

• Ethernet to RS485
• Support all RS485 devices of eletechsup, such as:
• 10IOA08/R4DCB08/R4D3B16/N4D3E16/N4AIA04
• Smart Home,Home Automation ,Wiser Home;
• Security Monitoring
• Identification system;
• IP Camera
• LED Lamp Drivers
• Automatic curtain control