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介绍了笔者自行开发的基于西门子S7—300系列模块化PLC产品的泵站现场控制级的基本功能 ,给出了S7—300系列模块化PLC的硬件结构、系统工作过程及自动化程序的编制和实现方法
This paper introduces the self-developed basic functions of on-site control level of pump station based on Siemens S7-300 series modular PLC products, and presents the hardware structure, system working process and automatic program compilation and implementation of S7-300 series modular PLC method