摘要
为了实现在工业控制系统中,上位机与下位机之间的及时、准确、可靠的通信,分析了在工业控制系统软件设计中上位计算机与PLC(可编程序控制器)等工业控制设备通过串行方式进行通信的基本设计原理、硬件要求、实现方法,并给出了利用VB6.0实现该过程的应用实例。
For realizing timely accurate reliable communication between Host and Slave in industrial control system,this paper presents the design principle,hardware requirement and implementation method of serial communication between host and PLC (Programmable Logic Controller)or other industry instrument,and provides a practical example of implementing this process with VB6.0.
出处
《电脑开发与应用》
2005年第4期44-46,共3页
Computer Development & Applications
