【正文】 畢 業(yè) 設 計 (論 文 ) 課 題 基于 PLC 的建筑設備自動控制系統(tǒng)設計 —— 照明控制系統(tǒng)設計 I 摘 要 大學的電能消耗中，照明用電占有絕大部分，其中教室的照明容量大、工作時間長，且常常采用手動的控制方法，造成了浪費。因此針對學生的生活學習規(guī)律對教室的照明進行了 PLC 智能控制。 本論文闡述了某教室的照明控制系統(tǒng)的設計思路、系統(tǒng)方案的選定、設備的選型、控制程序的編制與調(diào)試等等 。采用了 PLC 智能控制，系統(tǒng)穩(wěn)定可靠完全滿足教室的照明要求；根據(jù) PLC 控制原理對其進行 I/0 分配和繪制照明系統(tǒng)流程圖及編寫教室照明智能控制系統(tǒng)梯形圖控制程序。最后經(jīng)過模擬仿真運行能夠?qū)崿F(xiàn)教室內(nèi)的智能化照明。最終使燈具的使用壽命也有所提高 ,系統(tǒng)穩(wěn)定可靠，完全滿足了教室的照明要求，達到了預想的結果。 關鍵詞： PLC，節(jié)能，西門子 STEP7300，智能控制 II Abstract At the university of power consumption, lighting electricity possession for the most part, The classroom lighting of large capacity, long working hours, and often use manual control method, caused the waste. The students for life of learning rule PLC intelligent control of the classroom lighting. This paper expounds some classroom lighting control system design, selection of system scheme, equipment type selection, control program piling and debugging and so on. adopted PLC intelligent control system is stable and reliable pletely satisfy the requirement of the classroom lighting。 According to the principle of PLC control on the I/0 distribution and mapping lighting system flow chart and ladder diagram writing classroom light intelligent control system control program. Finally through the simulation operation can be achieved within the classroom intelligent lighting. Eventually make it also improved the service life of lamps and lanterns, the system is stable and reliable, pletely satisfying the requirements of the classroom lighting, to achieve the desired results. Keywords: PLC, energy saving, SiemensSTEP7300, intelligent control III 目 錄 摘 要 .............................................................................................................................. I ABSTRACT .....................................................................................................................II 1 緒論 .............................................................................................................................. 1 2 PLC 簡介 ....................................................................................................................... 2 PLC 定義和分類 ...................................................................................................... 2 PLC 的特點 ............................................................................................................. 3 PLC 的結構 ............................................................................................................. 4 主機 .................................................................................................................. 4 輸入 /輸出（ I/O）接口 ....................................................................................... 4 電源 .................................................................................................................. 5 編程器 .............................................................................................................. 5 輸入 /輸出擴展單元 ............................................................................................ 5 外部設備接口 .................................................................................................... 5 可編程控制器的性能指標 ........................................................................................ 5 .................................................................................................. 6 主要內(nèi)容 ................................................................................................................. 6 技術要求 ................................................................................................................. 6 PLC 工作原理 .......................................................................................................... 6 4 智能照明的總體方案設計 .............................................................................................. 7 照明系統(tǒng)的功能需求分析 ........................................................................................ 8 5 硬件設計 .........................................................................................................