摘要
随着工业自动化水平的提高,将PLC底层网络与上位计算机相结合,组成上下位机网络监控系统的控制方式得到了广泛的应用,本文以西门子S7-300系列PLC为例,上位机采用可视化编程语言VB,实现了计算机监控系统的设计。
With the increased levels of industrial automation, combining the underlying network of PLC and upper computer, to form upper and lower computer network monitoring system control method has been widely used. This paper based on Siemens S7-300 series PLC for example, the upper machine uses the VB visual programming language, to achieve a computer monitoring system design.
