ControlNet与ProfibusDP总线的性能比较

作者：陆文娟1,王玉芬1,胡海滨2 日期：2008-02-25/span> 浏览：3494 查看PDF文档

ControlNet与ProfibusDP总线的性能比较

陆文娟1,王玉芬1,胡海滨2
（1.浙江大学 电气工程学院，浙江 杭州 310027; 2.罗克韦尔自动化公司 西安办事处，陕西 西安 710000）

摘要：ControlNet和ProfibusDP是两种应用于工业控制级的现场总线。参照开放式系统互连（OSI）网络参考模型，将ControlNet和ProfibusDP这两种现场总线分为物理传输层、数据链路层及上层协议，并进行了横向比较：在物理传输层上分析比较了两者的传输介质与传输速率；在数据链路层上分析比较了两者的MAC技术；而在上层协议中分析比较了ControlNet的CIP协议，ProfibusDP用户层协议。最后，就两种总线的通信模式、网络性能进行了讨论。通过全面地研究，总结出了两种总线各自的优缺点，在工业控制领域中，有助于合理选择总线。
关键词：现场总线;ControlNet;ProfibusDP;开放式系统互连；网络模型
中图分类号：TP274文献标识码：A文章编号：1001-4551(2008)01-0053-04

Capability compare of ControlNet and ProfibusDP fieldbus
LU Wenjuan1, WANG Yufen1, HU Haibin2
(1.College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;
2.Xian Office, Rockwell Automation, Xian 710000, China)
Abstract: Both ControlNet and ProfibusDP are fieldbus, which are applied in the industrial control class. In virtue of open system interconnection (OSI) network model, ControlNet and ProfibusDP were separated into physics transmission layer, data link layer and superstratum protocol, and were compared from landscape orientation. In the physics transmission layer, transmission medium and transmission speed were analyzed and compared. In the data link layer, MAC technology was analyzed and compared. And in the superstratum protocol, CIP protocol of ControlNet was analyzed and compared, user layer protocol of ProfibusDP was analyzed and compared. In the end, communication pattern and network performance of both buses were analyzed and compared. Analyzing and comparing both buses generally, merits and defects of both buses were gotten, and there were in favor of choosing bus reasonably, in the industrial control field.
Key words: fieldbus; ControlNet; ProfibusDP; open system interconnection (OSI); network model
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