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ently the HMI factory is also more and more, the function is also more and more strong, the price is also more and more low, the noodles of the usage are wide more and more. The HMI foreground can say that think 176。s brain and calculators, with the mode that person39。另外要感謝我的指導老師,在設計的過程中給了我很大的幫助,讓我感觸最深的是老師嚴謹?shù)闹螌W作風。在本次畢業(yè)設計的進程中,我仔細梳理了所學的理論知識,結(jié)通過實際的應用,更加牢固的掌握了它們,也學習到很多書本上所沒有的知識,如,一個系統(tǒng)好,但廠家不一定會用最好的,而是用性價比最高的,或者說最能讓他們利益最大化的那個,我們說設計的系統(tǒng),大多都脫離實際更貼近理想化。在設計之初,我查詢了大量有關(guān)啤酒桶清洗的資料。 線圈保護裝置清洗機的排水、進水電磁閥是一個很重要的部件,它的負擔很重、受力很大,由于它是雙線圈電磁閥,通過機械觸點進行切換,在此過程中,觸點間存在較為嚴重的大火現(xiàn)象,因此,觸電的燒傷、電腐蝕在所難免,損壞的幾率是比較大的。過載保護:就是當電源停電或者由于某種原因電源電壓降低過多(欠壓)時,保護裝置能使電動機自動從電源上切除。CTR的優(yōu)點是顯示面積大,效率高。電磁閥可以配合不同的電路來實現(xiàn)預期的控制,而控制的精度和靈活性都能夠保證。晶體管是電子原件只有老化,沒有使用壽命限制。它是無觸點元件。PLC輸入接口用戶設備需輸入PLC的各種控制信號,如限位開關(guān)、操作按鈕、選擇開關(guān)、行程開關(guān)以及其它一些傳感器輸出的開關(guān)量或模擬量(要通過模數(shù)變換進入機內(nèi))等,通過輸入接口電路將這些信號轉(zhuǎn)換成中央處理單元能夠接收和處理的信號,用這些數(shù)據(jù)作為PLC對被控制對象進行控制的依據(jù)。定時控制功能是PLC的最基本功能之一。例如:應該保證PLC程序不僅在正常條件下運行,而且在非正常情況下(如突然掉電再上電、按鈕按錯等),也能正常工作。(3)為保證出酒壓力和酒液品質(zhì),最后應進行CO2備壓。 清洗機的用途特點 圖2 1清洗機 本設備是專為啤酒保鮮容器(包括不銹鋼、塑料保鮮桶及扎啤桶)的清洗、消毒設計的。本機主要由機架、電氣控制箱、電磁閥、氣動元件、氣沖系統(tǒng)和水路系統(tǒng)組成。 、抗干擾能力強 、安裝容易,維護工作量少 、通用性好 ,成功率高 ,重量輕、功耗底等特點。而且其影響也越來越大,應用也越來越廣泛。桶裝啤酒目前包裝容器一般采用不銹鋼桶或不銹鋼內(nèi)膽、帶保溫層的保鮮桶,桶的規(guī)格有50L、30L、20L、10L、5L等。本機控制單元采用以三菱公司的可編程控制器為核心對機器進行全過程控制。本機主要由機架、電氣控制箱、電磁閥、氣動元件、氣沖系統(tǒng)和水路系統(tǒng)組成。啤酒包裝源于桶裝,由于包裝簡便、成本低、口味新鮮,近年來受到企業(yè)的重視。于是可編程控制器應運而生,1969年,美國數(shù)字設備公司研制出世界上第一臺可編程控制器,從此,PLC開始活躍于控制領域。它在集成電路、計算機技術(shù)的基礎上發(fā)展起來的的一中新型工業(yè)控制設備。本設備適用桶的尺寸為高度H360—H560,直徑Φ250—Φ500。操作簡單,效率高,易于大規(guī)模和單個用戶使用。為保證酒桶內(nèi)盡可能不含氧氣及不潔凈氣體,所以氣沖時用CO2。這就要求設計者在系統(tǒng)設計、元器件選擇、軟件編程上要全面考慮,以確保控制系統(tǒng)安全可靠。在單機控制、多機群控和自動生產(chǎn)線控制方面都有很多成功的應用實例。 I/O模塊及點數(shù)輸入/輸出接口通常也稱I / O 單元或I / O 模塊,是PLC與工業(yè)生產(chǎn)現(xiàn)場之間的連接通道。晶體管是一種電子元件,它是通過基極電流來控制集電極與發(fā)射極的導通。(3)使用壽命不同繼電器由于是機械元件受到動作次數(shù)的壽命限制,且與負載容量有關(guān),隨著負載容量的增加,觸點壽命幾乎按級數(shù)減少。圖3 2水位控制器電磁閥是用電磁控制的工業(yè)設備,用在工業(yè)控制系統(tǒng)中調(diào)整介質(zhì)的方向、流量、速度和其他的參數(shù)。LCD是一種液晶顯示器,其有微功耗,顯示豐富,質(zhì)量高,接口簡單,超薄輕巧等優(yōu)點。故在電路中起著自動調(diào)節(jié)、安全保護、轉(zhuǎn)換電路等作用。當電流超過設定電流時候,設備自動斷電,以保護設備。本設計課題為基于PLC的啤酒清洗灌裝控制系統(tǒng),主要研究灌裝過程中啤酒桶的清洗,其實灌裝不只用到啤酒桶,有的也用瓶裝,但是考慮到大多數(shù)但是用桶裝,所以這里我主要介紹啤酒桶的清洗方式。所以,客觀的說,我所設計的啤酒清洗灌裝控制系統(tǒng)是簡單片面的,對此,我感覺很遺憾,更加認識到自身的不足。本次設計對我的專業(yè)知識進行了充分的考察,如果有時間和機會,我希望能繼續(xù)對本系統(tǒng)進行深入研究和探索。s labor strength, reduce the establishment on the personnel. The target control of the hard realization in many plicated production lines, whole and excellent turn, the best decision etc., welltrained operation work, technical personnel or expert, governor but can judge and operate easily, can acquire the satisfied result. The research target of the artificial intelligence makes use of the calculator exactly to carry out, imitate these intelligences behavior, moderating the work through person39。t is tolerant of. New technique always for bringing more safe and convenient operation for us, make we a lot of problems for face on sweep but light, do you understand the HMI? Says the HMI here you basically not clear what it is, also have no interest understanding, change one inside text explains it into the touch to hold or manmachine interface you knew, it bines with the PLC to our larger space.HMI the control not only only is reduced the control press button, increase the vivid of the control, more main of it is can sequence of, and at can the change data input to output the feedback with data, control in the temperature curve of imitate but also can keep the manifestation of view to e out. And can write the function help procedure through a plait to provide the help of various what lies in one39。t answer the phone, the other party also。PLC的最大特點在于:電氣工程師已不再電氣的硬件上花費太多的心計,只要將按鈕開關(guān)或感應器的輸入點連接到PLC的輸入點上就能解決問題,通過輸出點連接接觸器或繼電器來控制大功率的啟動設備,而小功率的輸出設備直接連接就可以。s request. This kind of breaks off the medium interruption to also became to break off the set. The Class that certainly break off is relevant according to various resources of CPU with internal PLC, also following a heap of capacity size of also relevant fasten.The contents that break off has a lot of kinds, for example the exterior break off, correspondence in of send out and accept the interruption and settle and the clock that count break off, still have the WDT to reset the interruption etc., they enriched the CPU to respond to the category while handle various business. Speak thus perhaps you can39。 But take data in the watch for an instruction procedure that controls the PLC, that had the difficulty very much, for example you have to control one pedestal robot to press the action work that you imagine, you will draw up for it the form that a procedure bine with the data sends out to pass by.The form that information transport contain single work, the half a work and the difference of a workses .The meaning of the single work also is to say both, a can send out only, but a can receive only, for example a spy he can receive the designation of the superior only, but can39。s address and saving machine three big pieces to constitute, CPU core is from an or many is tired to add the machine to constitute, mathematics that they have the logic operation ability, and can read the procedure save the contents of the machine to drive the homologous saving machine and I/ Os to connect after pass the calculation。 Van Gemert, Paul. Design and implementation of a plc continuous casting control system [R]. New [12]Du Toit, Chris. The design, documentation and maintenance of PLC software [R]. [13] . PLC technique discussion and future development[R] Electronic Test Equipmentprinciples and Applications. Princeton University. America[14]Hill, Peter .Design of medium voltage cables: Cable design in Eastern Electricity PLC and how it has affected installation[R].IEE 附錄A:外文文獻及譯文PLC technique discussion and future developmentFrom:Electronic Test Equipmentprinciples and Applications. Princeton University. AmericaAlong with the development of the ages, the technique that is nowadays is also gradually perfect, the petition plays more more strong。撇開專業(yè)知識不談,就設計所需的軟件工具,有很多我都不會運用。在課題設計過程中出現(xiàn)了很多問題,當然在處理問題的同時,我也學到了很多有