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Profibus DP协议在以太网上的实现研究

消耗积分:3 | 格式:rar | 大小:256 | 2009-05-26

王尚岱

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讨论了Profibus DP 协议功能在以太网上实现的可行性，对基于以太网的实时协议进行了改进。改进的实时协议基于以太网数据链路层的LLC 子层，使以太网可以适应实时通讯的要求能够应用于设备级，并且与已经存在的Profibus DP 现场总线上的应用保持了兼容性。还介绍了协议的实现和性能分析。
关键字：Profibus DP；以太网；实时协议；LLC
Implementation of Profibus DP Protocol on Ethernet LU Chao，ZHANG Xi-huang (School of Information Engineering, Southern Yangtze University, Wuxi 214122, China)
Abstract：This paper investigates the possibility of implementing Profibus DP functions on Ethernet and proposes a method to improve the real-time protocol based on Ethernet, referring to this implementation. The real-time protocol is based upon the IEEE802 Logical Link Control sublayer of Data Link layer of Ethernet to satisfy the requirement of real communication at the device level in factory automation systems and maintain the compatibility with already existing Profibus DP applications. Moreover, some performance figures of real-time protocol are analyzed and the results of some
simulation tests are given.
Key words：Profibus DP；Ethernet；Real-Time Protocol；LLC
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