摘  要：本文在简介了PROFIBUS-DP特性及特点的基础上，重点阐述了PROFIBUS-DP的基本功能及PROFIBUS-DP规范的物理层、数据链路层、管理层、用户层。 关键词： 特性  功能  规范 Abstract:  On the basis of introducing the characteristics and characteristics of PROFIBUS-DP， this paper focuses on the basic functions of PROFIBUS-DP and the physical layer， data link layer， management layer and user layer of PROFIBUS-DP specification. Key words: Characteristic  Functional  [登陆后可查看全文]