| 基于PPI通讯协议的监控模块的设计与实现 |
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| 引用本文： | 庄家森,焦小澄.基于PPI通讯协议的监控模块的设计与实现[J].现代电子技术,2007,30(16):34-36,40. |
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| 作者姓名： | 庄家森 焦小澄 |
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| 作者单位： | 南京大学,工程管理学院,江苏,南京,210093 |
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| 摘 要： | 介绍了西门子公司PPI通讯协议的解析方法,并给出协议中部分读写指令的具体格式。在此基础上介绍了自行设计的基于MCS-51单片机的监控模块,该模块以解析的PPI协议中相关读写命令为通讯协议,实现对S7-200系列PLC中相关单元的读写。最后,给出了监控模块的硬件构架和软件设计思想。实践证明该模块运行稳定、操作方便、实用性强。
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| 关 键 词： | PPI协议 S7-200PLC MCS-51单片机 MAX531 |
| 文章编号： | 1004-373X（2007）16-034-03 |
| 收稿时间： | 2007-03-27 |
| 修稿时间： | 2007-03-27 |
Design & Realization of Monitoring Module Based on PPI Communication Protocol |
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| ZHUANG Jiasen,JIAO Xiaocheng.Design & Realization of Monitoring Module Based on PPI Communication Protocol[J].Modern Electronic Technique,2007,30(16):34-36,40. |
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| Authors: | ZHUANG Jiasen JIAO Xiaocheng |
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| Abstract: | Some instructions of the Siemens PPI protocol are analyzed in the paper. With the PPI read and write instruction format,a monitoring module based on single chip microcomputer MCS- 51 is designed to communicate with the Siemens S7 - 200 PLC. The hardware structure and software flow of the module are introduced. It is proved that the module can be easily operated with high stability and good practicality. |
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| Keywords: | PPI protocol $7 - 200 PLC MCS - 51 single chip microcomputer MAX531 |
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