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随着计算机技术的飞速发展,PC机(工业PC和普通微机)已被越来越多地应用于自动化控制。但目前看来,PC机在工业控制中主要被用作上位机进行集中监控,完成可视化人机操作界面、过程图形显示、数据库、通信、联网等功能。本文所要介绍的是一种崭新的PC控制方案,它以现场总线为基础,用PC机直接代替PLC和NC/CNC控制设备;它充分利用当今软件技术的发展成果,对传统的控制系统提出了新的挑战。
With the rapid development of computer technology, PC (industrial PC and ordinary computer) has been increasingly used in automatic control. However, for the moment, the PC is mainly used as a supervisory control in industrial control to complete the functions of visualized man-machine interface, process graphic display, database, communication and networking. This article is to introduce a new PC control program, which is based on the field bus, PC directly replace PLC and NC / CNC control equipment; it takes full advantage of the development of today’s software technology, the traditional control system proposed new challenge.