若干种实时以太网标准的比较  

Comparison of Several Real-Time Ethernet

作　　者：冯世宁[1,2] 马杰[1,2] 赵雪飞[1,2] 

机构地区：[1]国网电力科学研究院,江苏南京210003 [2]南京南瑞集团公司,江苏南京210003

出　　处：《南京师范大学学报（工程技术版）》2010年第2期88-92,共5页Journal of Nanjing Normal University(Engineering and Technology Edition)

摘　　要：以太网主要应用于办公环境,而在工业控制领域的应用起步不久.工业控制对系统的实时性、稳定性和现场环境有更高的要求,且场合不同需求不一.工业通信网络IEC61158国际标准采纳了20种主要类型的现场总线和以太网,其中实时以太网有9种.本文对这些实时以太网进行分析,在体系结构、通信方法、实时特性、同步方法、模块间网络等方面进行了归纳和比较.针对应用过程,还比较了逻辑拓扑总线型和环型各自的优点和不足,并提出解决方法,以便选择和开发应用.Ethernet which is mainly used for office environment has emerged and developed for more than 30 years.While in the field of industrial control,its applications start soon.Due to its specificity,industrial control needs a real-time and stable system.On various occasions,requirements vary.The IEC61158 international standard contains 20 major types of field bus,in which there are nine kinds of real-time Ethernet.This paper summarizes and compares the system structures,communication methods,real-time features,synchronizations,network modules and other aspects of these real-time Ethernet.This paper compares the bus type and the ring,and proposes solutions in order to choose and develop applications.

关 键 词：IEC61158的国际标准 实时以太网 工业控制系统 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]