【正文】 圖 20 回漆閥梯形圖 通風(fēng)閥 在真空閥關(guān)閉、浸漆罐抽真空中間繼電器得電后，打開通風(fēng)閥， 5s 后關(guān)閉；在真空閥關(guān)閉、浸漆罐排風(fēng)中間繼電器得電后，打開通風(fēng)閥，在這種情況 下要保證干燥罐真空閥和儲(chǔ)漆罐真空閥關(guān)閉。 X042 M100 X034 （ Y000） M105 T。 X010 M100 X006 X016 X007 X021 X024 X005 （ Y011） （ M198） 圖 20 回漆閥梯形圖 通風(fēng)閥 在真空閥關(guān)閉、浸漆罐抽真空中間繼電器得電后，打開通風(fēng)閥， 5s 后關(guān)閉；在真空閥關(guān)閉、浸漆罐排風(fēng)閥中間繼電器得電后，打開通風(fēng)閥，在這種情況下要保干燥罐真空閥和儲(chǔ)漆罐 真空閥關(guān)閉。它的助記符為： LD X005 AND X007 33 ANI X006 ANI X010 ANI X016 ANI X021 ANI X025 ANI X026 AND M100 OUT Y010 ；輸漆閥 OUT M199 所對(duì)應(yīng)的梯形圖如圖 18 所示。它們的助記符為： LD M10 ANI X004 ANI X014 LD M11 ANI X006 27 AND X016 ORB LD M12 ANI X005 AND X015 ORB ANI M110 OR M102 OR M103 LD M101 ANI T10 AND T0 ORB AND M100 MPS ANI M110 ANI X043 OUT Y012 ；真空閥 MRD AND X022 OUT T12 K20 MRD AND T12 ANI X043 OUT M111 MRD AND T15 AND M41 OUT Y026 ；水環(huán)泵進(jìn)氣閥 MRD 28 AND T16 AND M41 OUT Y025 ；水環(huán)泵進(jìn)水閥 MPP LD M110 AND M101 ORI X011 ANB ANI X023 MPS ANI T115 OUT Y015 ； 真空機(jī)組水環(huán)泵 OUT M101 MRD ANI T9 ANI X043 OUT Y041 ； 真空機(jī)組破真空閥 OUT M41 MPP OUT T15 K20 OUT T16 K40 所對(duì)應(yīng)的梯形圖如圖 15 所示。它的助 記符程序?yàn)椋? LD X002 AND X003 ANI X006 ANI X043 OUT M13 。 M100 M20 X033 (Y021) M30 (M200) X042 M105 T17 M60 (Y004) M200 (M197) X042 (Y020) M105 T17 圖 11 加熱水箱管道泵、儲(chǔ)漆罐攪拌電機(jī)和冷卻循環(huán)水箱管道泵梯形圖 干燥罐真空閥、干燥罐進(jìn)風(fēng)閥和排風(fēng)閥 在干燥罐蓋關(guān)閉的情況下，干燥罐抽真空中間繼電器為 “ ON” 時(shí)，干燥罐真空閥打開。也可用編程器進(jìn)行調(diào)試。 （ 10） 儲(chǔ)漆罐降溫保存 啟動(dòng)制冷機(jī)組，然后觸動(dòng) “啟動(dòng)攪拌電機(jī) ”按鍵，攪拌電機(jī)啟動(dòng)。按下 “液壓站油泵電機(jī)啟動(dòng) ”按鈕，啟動(dòng)液壓站。斷開 “輸漆 ”、 “回漆 ”按鈕，使輸漆閥、回漆閥關(guān)閉。按下 “浸漆罐罐蓋關(guān)蓋 ”按鈕，將浸漆罐罐蓋關(guān)到位，按下 “浸漆罐罐蓋旋緊 ”按鈕，轉(zhuǎn)箍旋轉(zhuǎn)復(fù)位，按下 “液壓站油泵電機(jī)停止 ”按鈕，停止液壓站油泵電機(jī)，關(guān)浸漆罐的大氣閥。 （ 2） 按控制規(guī)模分類 PLC 的控制規(guī)模主要是指開關(guān)量的輸入 /輸出點(diǎn)數(shù)模擬量的輸入 /輸出路數(shù)。隨著微處理器技術(shù)和現(xiàn)代通信技術(shù)的發(fā)展， PLC也得到了迅速發(fā)展，其技術(shù)和產(chǎn)品日趨完善。 1971 年，日本引進(jìn)這項(xiàng)技術(shù)，并開始生產(chǎn)自己的 PLC。 [關(guān)鍵詞 ]輸入 /輸出 控制程序 PLC PLC in vacuum pressure dipping lacquer paint control system application Yu Juan Wang 0201 Electrical Information Abstract: The PLC control system is for the technical process service, therefore it first must be able the very good realization craft to propose control PLC control system design should follow following principle. Carries on the design according to the technical process, the control system which the endeavour designs can maximum limit satisfy the control to satisfies the control request under the premise, reduces the PLC system hardware expense as far as later will control the change which will want, therefore time control system design will be supposed to consider PLC the control system uses and maintains conveniently, safe reliable. The PLC programming mainly is or uses the programming softwarethrough the programmer which PLC Corporation provides to plete. Each PLC Corporation all has own programmer, it quite is generally young, moreover quite light, suits in the field it only can use the mnemonic symbol language to carry on the programming to PLC, moreover because the screen is small, each time only can demonstrate 12 lines of procedures, difficulty with overall carry on the analysis to the procedure. PLC Corporation provides the programming software can use the trapezoidal chart, the mnemonic symbol or the function block chart language carries on the programs the software, not only can see on a screen to several pages, even several dozens pages of procedures, macroscopically carry on the edition and the analysis to the procedure, moreover it can carry on the surveillance to the procedure movement situation. Key words: PLC the transport cars control system 目 錄第一章 緒論 ................................................................................................................ 8 PLC 的定義 .......................................................................................................... 8 PLC 的發(fā)展現(xiàn)狀 .................................................................................................. 8 PLC 的發(fā)展趨勢(shì) .................................................................................................. 8 PLC 的特點(diǎn) .......................................................................................................... 9 PLC 的分類 .......................................................................................................... 9 PLC 的基本結(jié)構(gòu) ................................................................................................ 10 第二章 真空壓力浸漆控制系統(tǒng)的工藝流程及設(shè)備控制 要求 .............................. 11 真空壓力浸漆的工藝流程 ............................................................................... 11 真空壓力浸漆控制系統(tǒng)的 PLC 選型和資源配置 .......................................... 14 第三章 真空壓力浸漆控制系統(tǒng)程序設(shè)計(jì)和資源分配 .......................................... 15 編程軟件 ............................................................................................................ 15 程序的流程圖、構(gòu)成和相關(guān)設(shè)置 ................................................................... 15 系統(tǒng)資源分配 .................................................................................................... 17 第四章 源程序 .......................................................................................................... 21 緊急停止中間繼電器 ...........................................