【正文】 目 錄四層電梯職能控制系統(tǒng)畢業(yè)論文目 錄設(shè)計(jì)總說明 ............................................................................................................................IABSTRACT .........................................................................................................................II1 緒論 ...............................................................................................................................12 概述及組成 ...................................................................................................................3 電梯的概述 ..........................................................................................................3 電梯繼電器控制系統(tǒng)的特點(diǎn)及存在問題 ...................................................3 電梯繼電器控制系統(tǒng)的優(yōu)點(diǎn) .......................................................................3 電梯繼電器控制系統(tǒng)的缺點(diǎn) .......................................................................4 電梯變頻調(diào)速控制的特點(diǎn) ...........................................................................4 PLC 簡(jiǎn)介及其特點(diǎn) ...................................................................................................5 PLC 簡(jiǎn)介 ............................................................................................................5 PLC 特點(diǎn) ............................................................................................................5 PLC 控制電梯的邏輯關(guān)系 ................................................................................6 PLC 控制電梯的優(yōu)點(diǎn) ........................................................................................63 PLC 控制系統(tǒng)硬件設(shè)計(jì) ................................................................................................7 四層電梯曳引電機(jī)及門電機(jī)電路圖 ..................................................................8 PLC 外部接線圖 .......................................................................................................8 I/0 點(diǎn)數(shù)的分配及機(jī)型的選擇 .............................................................................10 I/O 點(diǎn)數(shù)的估算 ..............................................................................................10 輸入/輸出的分配 .......................................................................................10 機(jī)型的選擇 .................................................................................................11 電梯控制系統(tǒng)結(jié)構(gòu)框圖 ....................................................................................124 系統(tǒng)軟件設(shè)計(jì) .............................................................................................................14 PLC 的編程語言 .....................................................................................................14 STEP 7 概述 ...........................................................................................................14 程序設(shè)計(jì)常用方法 ............................................................................................155 四層電梯梯形圖 .........................................................................................................17 外召喚信號(hào)登記及消除 ....................................................................................17 內(nèi)指令信號(hào)登記及消除 ....................................................................................18 電梯的平層信號(hào)處理 ........................................................................................19 選層定向及反向截梯 ........................................................................................20目 錄 內(nèi)指令外召喚信號(hào)的保持 ................................................................................22 各樓層停車信號(hào) ................................................................................................23 自動(dòng)開關(guān)門 ........................................................................................................246 電梯系統(tǒng)模擬調(diào)試 .....................................................................................................25 S7200 仿真軟件 簡(jiǎn)介 .................................................................................25 S7200 仿真軟件界面介紹 ............................................................................25 常用菜單常用菜單命令介紹 .....................................................................26 四層電梯在 S7200 仿真軟件上仿真調(diào)試 ......................................................26 準(zhǔn)備工作 .....................................................................................................26 程序仿真 .....................................................................................................277 控制過程分析 .............................................................................................................29 電梯上行（例，從一層到二層）： ................................................................29 樓道呼梯： .................................................................................................29 梯內(nèi)呼梯： .................................................................................................32 電梯下行（例，從四層到三層）： ................................................................32 樓道呼梯： .................................................................................................32 梯內(nèi)呼梯： .................................................................................................33 電梯兩分鐘沒任何操作自動(dòng)返回 1 層（例，電梯原停樓層 2）： .............348 總結(jié) .............................................................................................................................35鳴 謝 ..................................................................................................................................36參考文獻(xiàn) ....................................................................................................