关键词：技术特点 开放可靠 灵活实时
Abstract: On the basis of introducing the characteristics of PROFIBUS technology, this paper focuses on the advantages of PROFIBUS, such as openness, reliability, flexible expansion, real-time and so on.
Key words: Technical features open, reliable flexible and real-time
【中图分类号】TN914.3 【文献标识码】B 文章编号1606-5123（2017）09-0000-00
1 引言
PROFIBUS是面向工厂自动化、流程自动化的一种国际性的现场总
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