工业以太网可靠性和实时性的探讨与分析  

Discussion and Analysis on Reliability and real-time of Industrial Ethernet

作　　者：左雷 桂小渝 龚志远[2] 李士安 

机构地区：[1]空军工程设计研究局,100068 [2]北京航空航天大学,100083

出　　处：《中国电子商情（通信市场）》2010年第1期35-40,共6页

摘　　要：本文首先描述了工业控制领域对控制网络的可靠性与实时性的严格要求，接着讨论了传统现场总线网络系统在高可靠性、高实时性方面的优势以及其专有性与低互操作性的劣势，进而转入对开放标准的以太网技术进行讨论。通过分析普通商用以太网不满足工业控制网络可靠性要求的原因，转入重点探讨分析了工业以太网是如何从硬件设备和通信协议两方面改善商用以太网的可靠性与实时性。工业以太网可靠性设计人员可以以本文作为参考。This article firstly described high reliability and real-time performance required by the industrial control networks, and then discussed both advantages and disadvantages of traditional fieldbuses, after that ,the open standard Ethernet technology is introduced. Through discussing the disadvantage of applying commercial Ethernet to industrial control networks, this article analyzed two methods to improve the reliability and real-time performance of commercial Ethernet： hardware devices and communication protocols. This article can be used as a reference by Industrial Ethernet designer.

关 键 词：工业以太网 可靠性 实时性 

分 类 号：TP393.11[自动化与计算机技术—计算机应用技术] TP368.5[自动化与计算机技术—计算机科学与技术]