摘要
利用以太网实现上位计算机和PLC间的通讯是现代工业控制中的重要技术之一。本文以PC机为上位机,以PLC为下位机,研讨三菱Q系列PLC与上位计算机之间的以太网通信方法与程序设计。给出了利用VB6.0开发环境与MX控件实现上位机与PLC之间通讯的设计过程。
Ethernet communication between PLC and the host computer is one of the important technology in modern industrial control. In the system, Computer is the host and PLC is the subordination. The methods and programmer design for the Ethernet communication between Mitsubishi Q series PLC and the host computer are presented. The design process of realizing the communication between the host computer and PLC by VB6.0 and MX Component is given.
