| S7-200PLC模拟量采集的经济实现 |
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| 引用本文： | 焦振宇.S7-200PLC模拟量采集的经济实现[J].测控技术,2010,29(12):22-25. |
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| 作者姓名： | 焦振宇 |
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| 作者单位： | 江苏信息职业技术学院,江苏,无锡,214153 |
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| 摘 要： | 针对西门子S7-200系列PLC模拟量采集成本昂贵的现状，设计了一种适用于S7-200 PLC的廉价解决方案。硬件方面，介绍了模拟量采集模块的构成及与S7-200的连接方法;软件方面，介绍了通信数据包格式、通信协议、数据采集模块的数据上传程序以及S7-200的接口程序。本方案与S7200原厂模拟量采集模块相比，应用成本大幅度降低。
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| 关 键 词： | DI 模拟量采集 低成本 |
Economic Mothod of Analog Signal Acquisition for S7-200 PLC |
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| JIAO Zhen-yu.Economic Mothod of Analog Signal Acquisition for S7-200 PLC[J].Measurement & Control Technology,2010,29(12):22-25. |
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| Authors: | JIAO Zhen-yu |
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| Abstract: | Faced with the high cost status of analog acquisition for S7-200PLC,a cheap programm applied to Siemens S7-200 PLC is designed.The composition of analog acquisition module and connection method with S7-200 are introduced about hardware.Communication packet format,communication protocol,data-upload program of the module and API of S7-200 are introduced about software.Compared with the original analog signal acquisition module of S7-200,the cost of application is decreased greatly. |
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| Keywords: | DI analog signal acquisition low cost |
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