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基于C8051F020 和SPC3 的PROFIBUS 智能I/O 从站设计
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PROFIBUS 是目前国内外广泛运用的工业现场总线之一，它提高了过程控制中的分散
外设及I/O 口数据传输的安全性和可靠性。针对无轴印刷机外设数据传输要求较高的实时性和可靠性，该项目设计了基于C8051F020 和SPC3 的PROFIBUS 智能I/O 从站。本文着力阐述了智能从站的硬件设计，介绍了智能I/O 从站模块与西门子300 系列PLC 主站在Step7 软件环境下的组态及软件的调试以及提高系统可靠性的方法。
关键词：C8051F020、SPC3、PROFIBUS、Step7、可靠性
An intelligent PROFIBUS slave design based on C8051F020 and SPC3 Author：Li Xiaohui, Zhang Huihui, Sun Shuwen Department: Mechatronics Control Laboratory, College of Mechanical Engineering & Applied Electronics Technology, Beijing University of Technology Abstract: PROFIBUS is most important and widely applied field bus in the industry field. Its applications make the process control more safe and reliable. Here, the design for the intelligent I/O slave based on C8051F020 and SPC3 is introduced. This kind of slave is designed for the shaftless printing machine, meeting the demand of modularization and reliability of industry filed. Furthermore, this paper illustrates the software environment of Step7 which is worked on series 300 of Siemens’s PLC. Finally, how to improve the reliability of slave practically is illustrated.
Keywords：C8051F020、SPC3、PROFIBUS、Step7、Reliability
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2011-05-15
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