串行通讯技术在机车清洗机中的应用

Application of serial communication technology to locomotive cleaning machine

介绍了用于机车清洗机控制的三菱FX系列PLC与PC机的通讯协议,分析了VB中用于串行通讯的MSComm控件及其主要属性,给出了机车清洗机中PLC与上位机通讯的详细程序。

The communication protocol between FX serial PLC and PC—which are applied to locomotive cleaning machine—is presented.MSComm and its main features in VB are described and analysed.The detailed communication program between PLC and PC is given in this article.