摘要
本文介绍了在C++Builder6.0环境下,以SIMATICS7-300/400PLC为对象,利用多线程编程技术实现PLC和上位机基于工业以太网的实时通信过程。给出了系统的通信原理和软件设计方法,并将此方法成功应用于实时监控系统的调试中。
This paper introduce the realizing of Real-Time communication process between S7-300/400 series PLC and PC through Industrial Ethernet using the multi-thread technology.The system＇ s communication principle and software design method are given and the method is applied to the debugging of Real-Time monitoring system.
出处
《微计算机信息》
北大核心
2006年第05S期43-45,135,共4页
Control & Automation
关键词
PLC
多线程
工业以太网
通信
PLC
Multi-threaded
Industrial Ethernet
communication
