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