| Hierarchical hybrid control network design based on LON and master-slave RS-422/485 protocol |
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| 作者姓名： | 彭可 陈际达 陈岚 |
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| 作者单位： | College of Information Science and Engineering,Central South University,Changsha 410083, China |
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| 基金项目： | TheHunanIndustrialResearchProject (No.0 0GKY2 0 53) |
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| 摘 要： |
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| 收稿时间： | 29 September 2001 |
Hierarchical hybrid control network design based on LON and master-slave RS-422/485 protocol |
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| Peng Ke , Chen Ji-da and Chen Lan.Hierarchical hybrid control network design based on LON and master-slave RS-422/485 protocol[J].Journal of Central South University of Technology,2002,9(3):202-207. |
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| Authors: | Peng Ke Chen Ji-da and Chen Lan |
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| Affiliation: | College of Information Science and Engineering,Central South University,Changsha 410083, China College of Information Science and Engineering,Central South University,Changsha 410083, China College of Information Science and Engineering,Central South University,Changsha 410083, China |
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| Abstract: | Aiming at the weaknesses of LON bus, combining the coexistence of fieldbus and DCS (Distribu-ted Control Systems) in control networks, the authors introduce a hierarchical hybrid control network design based on LON and master-slave RS-422/485 protocol. This design adopts LON as the trunk, master-slave RS-422/485 control networks are connected to LON as special subnets by dedicated gateways. It is an implementation method for isomerous control network integration. Data management is ranked according to real-time requirements for different network data. The core components, such as control network nodes, router and gateway, are detailed in the paper. The design utilizes both communication advantage of LonWorks technology and the more powerful control ability of universal MCUs or PLCs, thus it greatly increases system response speed and performance-cost ratio. |
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| Keywords: | LON fieldbus master-slave RS-422/485 protocol hierarchical hybrid control networks router gateway networks integration |
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