摘要
针对PROFIBUS现场总线的特点,在探讨PROFIBUS总线数据链路层(MAC)通信协议的基础上,介绍了该总线的主从令牌通信方式,重点给出了该通信的硬件实现方法,阐述了这些接口模板的物理结构、通信能力及连接方法。这些通信模板是PROFIBUS现场总线控制系统的重要组成部分。
For the characteristics of Profibus fieldbus, Based on the analysis of the Data link level of Fieldbus protocol, The communication model of protocol's token is discussed, and the implement method of the communication with hardware is given emphatically. The physical structure and communication ability and connect method of module chip are introduced .These chips are the important constitution of Profibus fieldbus control system.
出处
《电子质量》
2003年第9期14-16,共3页
Electronics Quality
