[아두이노#614] Arduino에 W5500을 연결해서 C#윈폼으로 모드버스(modbus) TCP의 프로토콜에 대해서 이해하고 통신하는 방법 알아보기!(녹칸다의 아두이노 시즌2)
Arduino + W5500 runs Modbus TCP with C# WinForms UI, showing coil control, register read/write, and key RTU vs TCP differences.
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![[아두이노#614] Arduino에 W5500을 연결해서 C#윈폼으로 모드버스(modbus) TCP의 프로토콜에 대해서 이해하고 통신하는 방법 알아보기!(녹칸다의 아두이노 시즌2)](/upload/_thumb/1280/project/3176/cover163.jpg.jpg)
Project description
1. Overview By combining Arduino with the W5500 Ethernet module, you can easily implement Modbus TCP communication for industrial and IoT applications. This post explains the differences between Modbus RTU and TCP, introduces common function codes, and demonstrates a C# WinForms UI that controls and monitors LEDs via Modbus TCP. 2. Modbus RTU vs TCP Modbus RTU Requires CRC16 checksum for error detection. Works over serial communication such as RS-485/RS-232. Slave address is represented in 1 byte. Modbus TCP No CRC required, since error handling is done by TCP/IP layers. Adds a 6-byte MBAP…
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