Python通过MC协议与三菱PLC通讯分析

Analysis of python communication with mitsubishi PLC via MC protocol

三菱MELSEC通信协议(以下简称“MC协议”)用于外部设备(个人计算机,显示器)管理PLC的数据通讯,支持串口和以太网两种通讯方式,具有高效、灵活、可靠、易用等特点。Python语言是一种解释型、面向对象的编程语言,易学、易用,免费、开源。通过简单的程序编写即可实现三菱PLC的生产数据监控、参数文件写入等功能。

Mitsubishi MELSEC communication protocol(hereinafter referred to as“MC protocol”)is used for external devices(personal computers,monitors)to manage the PLC data communication,support for the serial port and Ethernet two kinds of communication methods,with high efficiency,flexibility,reliability,ease of use and so on,Python language is an interpreted,object-oriented programming language,easy to learn,easy to use,free,open source.Production data monitoring,parameter file writing and other functions of Mitsubishi PLC can be realized by simple program writing.