【摘要】 本文讨论了ＡＳＩ　和Ｐｒｏｆｉｂｕｓ总线的技术特点和结构，并以西门子Ｓ７系列　ＰＬＣ为基础，着重介绍了基于　ＡＳＩ和　Ｐｒｏｆｉｂｕｓ两种总线相结合的大型除尘监控网络，提出了用ＶＢ实现工控机监控的方法，　给出了实例。更多还原

【Abstract】 This paper introduces the technology characteristics and structure about ASI fieldbus and PROFIBUS fieldbus．On the basis of Siemens S7-PLC,a large monitor and control system based on ASI and PROFIBUS for dust allayers is emphatically introduced．The method to realize the control programme with Visual basic is put forword．The application examples are shown．更多还原