【正文】 計(jì)算機(jī)的內(nèi)部結(jié)構(gòu)與改進(jìn)可靠性等措施，使之能與工業(yè)環(huán)境相適應(yīng)。隨著技術(shù)的進(jìn)步，生產(chǎn)機(jī)械對(duì)電氣自動(dòng)控制提出了越來(lái) 越高的要求，電氣自動(dòng)控制裝置逐步發(fā)展成了各種形式的電氣自動(dòng)控制系統(tǒng)。 控制流程圖 ...........................................................13 三菱 FX2N 系列指令表 ..................................................14 廣告燈牌分布圖： .....................................................17 論 ...................................................................20參考文獻(xiàn) ..................................................................22致 謝 .....................................................................23論文原創(chuàng)性聲明 ..........................................................241 / 331 緒 論可編程序控制器(Programmable Logic Controller， 簡(jiǎn)稱 PLC)，PLC 從1969 年問(wèn)世以來(lái)，雖然至今還不到 40 年，但由于其具有道用靈活的控制性能、可以 適應(yīng)各種工業(yè)環(huán)境的可靠性與簡(jiǎn)單方便的使用性能，在工業(yè)自動(dòng)化各領(lǐng)域取得了廣泛的應(yīng)用。PLC 在工業(yè)自動(dòng)化控制特別是順序控制中的地位，在可預(yù)見的將來(lái)，是無(wú)法取代的。隨著改革的不斷深入,社會(huì)主義市場(chǎng)經(jīng)濟(jì)的不斷繁榮和發(fā)展,大中小城市都在進(jìn)行亮化工程。PLC 廣泛的應(yīng)用在各種機(jī)械設(shè)備和生產(chǎn)過(guò)程的自動(dòng)控制系統(tǒng)中，PLC 在其他領(lǐng)域，例如在民用和家庭自動(dòng)化中也得到了迅速的發(fā)展。通過(guò)本設(shè)計(jì)，即能熟悉學(xué)習(xí)過(guò)的 PLC 知識(shí)，還能提高自己的設(shè)計(jì)能力，并且PLC 具有通用性強(qiáng)、使用方便、適應(yīng)面廣、可靠性高、抗干擾能力強(qiáng)、編程簡(jiǎn)單等特點(diǎn)。關(guān)鍵詞：PLC，廣告燈II / 33The Title of the thesisABSTRACTA programmable controller PLC, its wide application, strong function, convenient use, has bee the main pillar of industry automation. PLC is widely used in all kinds of machinery equipment and the automatic control system of production processes, PLC in other areas, such as in civil and home automation has also been a rapid development. With the continuous deepening of reform, the socialist market economic prosperity and the continued development of big and medium city, in the lighting project. Enterprises to promote the image of their panies and products, are subject to the advertising practices of: lighting advertising screen to achieve this purpose . When we night walking in the street, the road on both sides of diversiform lighting advertising can be seen, using a LED lamp made of various shapes and multiple color lamp, another one is fluorescent tube or incandescent lamp as the light source, the other with large advertisement or poster to achieve the propaganda effect. Out of these bright lights, flashing all the time and the flow direction through the PLC to achieve the control requirement. Through this design, can be familiar with the learned knowledge in PLC, but also improve the ability of design, and the PLC has strong universality, convenient use, wide adaptability, high reliability, strong anti interference ability, simple programming features. PLC in industrial automation and control a particular sequence to control the position, in the foreseeable future, cannot be replaced. To a certain extent, improve their job search success rate in the future. So I chose this topic.Keywords：Programmable controller (PLC), advertising lights1 / 33目 錄摘 要 .......................................................................IABSTRACT..................................................................II 論 ....................................................................1 PLC 的特點(diǎn) ............................................................2 高可靠性 ........................................................2 豐富的 I/O 接口模塊 ..............................................2 采用模塊化結(jié)構(gòu) ..................................................2 編程簡(jiǎn)單易學(xué) ....................................................2 安裝簡(jiǎn)單，維修方便 ..............................................2 PLC 的功能 ............................................................3 的應(yīng)用 .............................................................3 開關(guān)量的邏輯控制 ................................................3 模擬量控制 ......................................................3 運(yùn)動(dòng)控制 ........................................................3 過(guò)程控制 ........................................................4 數(shù)據(jù)處理 ........................................................4 通信及聯(lián)網(wǎng) ......................................................4 在廣告設(shè)計(jì)領(lǐng)域的應(yīng)用 ............................................5 PLC 的分類 ............................................................5 PLC 的結(jié)構(gòu) ............................................................5 PLC 的工作原理 ........................................................5