摘要
在工业控制中,需要对PLC进行监控,实现的方式可以是专门的组态软件,也可以是利用微软的应用程序开发工具。对中小型企业而言,后一种方式更显高效和灵活。本文介绍了如何通过VC++编程,实现计算机与西门子S7-200 PLC之间的自由口通讯。
The monitoring of PLC during the industrial control process is necessary.Using the professional monitoring software or the application software developing tools of Microsoft is feasible.For small and media-sized enterprises,the latter method is more efficient and flexible.In this paper,the communication between PC and PLC through the free port of PLC by using the tool of VC＋＋ was introduced.
出处
《当代化工》
CAS
2013年第7期1015-1016,1039,共3页
Contemporary Chemical Industry
