| 工业以太网EtherCAT冗余和热插拔技术 |
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| 引用本文： | 郇极,肖文磊,刘艳强. 工业以太网EtherCAT冗余和热插拔技术[J]. 北京航空航天大学学报, 2009, 35(2): 158-161 |
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| 作者姓名： | 郇极 肖文磊 刘艳强 |
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| 作者单位： | 北京航空航天大学 机械工程及自动化学院, 北京 100191 |
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| 基金项目： | 国家863计划资助项目(2007AA004Z176) |
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| 摘 要： | EtherCAT是一种实时工业以太网协议,使用冗余技术是实现热插拔和提高通信可靠性的重要手段.首先介绍了实时工业以太网EtherCAT的组成、工作原理和报文结构,研究了使用环型网络拓扑结构实现基于EtherCAT的工业自动化控制系统故障容错及热插拔技术,分别规划了在网口故障、链路故障和节点故障时冗余帧传播机制、故障点定位和恢复策略.开发了链路冗余EtherCAT主站驱动程序,将常规EtherCAT主站驱动程序做了修改,加入链路冗余机制,对上层应用屏蔽了冗余信息和操作.最后完成了冗余和热插拔的性能测试实验,结果表明系统性能优越,运行稳定.
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| 关 键 词： | 工业以太网 EtherCAT 冗余 环型拓扑 |
| 收稿时间： | 2008-07-20 |
Redundancy and hot swap technology in industrial Ethernet EtherCAT |
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| Huan Ji,Xiao Wenlei,Liu Yanqiang. Redundancy and hot swap technology in industrial Ethernet EtherCAT[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(2): 158-161 |
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| Authors: | Huan Ji Xiao Wenlei Liu Yanqiang |
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| Affiliation: | School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | EtherCAT is a type of real-time industrial Ethernet protocol for data communication in automation control system.Redundancy is an important way for hot swap and improving the communication reliability.The architecture,principle and frame structure of the EtherCAT were introduced.The fault tolerance and hot swap technology in EtherCAT based industry automation control system were proposed with ring topology.The master carries two full duplex Ethernet interfaces,forming two logical data stream.If there is a f... |
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| Keywords: | industrial Ethernet EtherCAT redundancy ring topology |
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