Modbus RTU vs Modbus TCP – Do You Know the Difference? Both Modbus RTU and Modbus TCP are widely used communication protocols in industrial automation, PLC, SCADA, DCS, and monitoring systems. Modbus RTU • Uses Serial Communication (RS232/RS485) • Simple and cost-effective • Best for shorter distance industrial networks Modbus TCP • Uses Ethernet/IP Network • Faster communication speed • Easy integration with modern systems In this infographic, you will learn: Working principle of RTU & TCP Serial vs Ethernet communication Typical devices used Network structure comparison Key advantages of each protocol Save this post for quick revision and share it with your automation friends.
