榆林学院本科毕业设计（论文）I摘摘 要要本设计基于西门子 S7-200 PLC 编程，设计了花样喷泉系统。花样喷泉控制系统的主要任务就是改变喷泉的喷水样式，以达到有规律的改变喷泉喷水样式的目的。按下启动按钮，喷泉装置开始工作，按下停止按钮，喷泉控制装置停止工作。喷泉工作方式由花样选择开关和单步连续开关决定。当单步连续开关选择单步时，喷泉只能按照花样选择开关设定的方式，运行一个循环；当单步连续开关选择连续时，喷泉按照花样选择开关设定的方式，运行多个循环，直至按下停止按钮。花样循环方式选择开关用于选择喷泉的喷水花样，本文设计四种喷水花样循环。PLC 控制系统体积小、功能强、可靠性高,且具有较大的灵活性和可扩展性的特点。用 PLC 花样喷泉控制系统，不但实现了自动转换花样喷泉的喷水样式，提高了系统的可靠性和安全性，而且，美化了我们的生活环境，使我们的生活环境更加安逸、舒适。因此 PLC 控制系统具有一定的工程应用和推广价值。关键词：关键词：喷泉，PLC 控制，花样喷泉系统 PLC 控制的花样喷泉系统设计ABSTRACTThis design is based on Siemens S7-200 PLC programming, design patterns fountain system. Figure fountain control systems main task is to change the fountain of water style, to achieve a change in the purpose of the fountain water style. Press the Start button, fountain device started working, press the stop button, fountain control device to stop working. Fountain works by pattern selection switch and single-step/continuous switching decision. When step/continuous switch selection step, select only in accordance with figure fountain switch is set in a way, running a loop; when step/continuous switching select continuous time, fountain in accordance with the pattern selection switch is set in a way, running several cycles, until you press the stop button. Figure cycle way selector switch is used to select a fountain of water spray pattern, this article design four spray pattern. The PLC control system volume is small, versatile, high reliability, and with greater flexibility and scalability features. The PLC figure fountain control system, not only for automated conversion figure fountain water style, improves system reliability and security, and beautified our living environment, make our life more easy, comfortable environment. Thus plc control system has certain engineering application and extension value.Key words: fountain, PLC control, pattern fountain system 榆林学院本科毕业设计（论文）目录目录摘 要.IABSTRACT.II目录 .III引言 .1第 1 章 喷泉的设计要求 .21.1 喷泉的建设要求 .21.1.1 喷泉规模的设计 .21.1.2 喷泉水柱的分布 .21.1.3 回水池的设计 .31.1.4 喷泉内径的设计 .31.1.5 喷泉水柱高度的设计 .31.2 喷泉程序的控制要求 .41.2.1 程序要求 .41.2.1 运行要求 .4第 2 章 喷泉的施工设计 .52.1 喷泉的基础建设 .52.1.1 施工面积 .52.1.2 回水池的建设 .52.1.3 喷泉喷头的安装 .62.2 喷泉潜水泵的选择 .62.2.1 喷泉功率的计算 .62.2.2 喷泉潜水泵的选择 .72.2.3 喷泉潜水泵接线图 .8第 3 章 PLC 控制设计.93.1