簡(jiǎn)介:1PLC課程設(shè)計(jì)報(bào)告課程設(shè)計(jì)報(bào)告題目自動(dòng)售貨機(jī)PLC設(shè)計(jì)姓名學(xué)號(hào)班級(jí)自動(dòng)化0802指導(dǎo)老師指導(dǎo)老師日期3摘要本論文設(shè)計(jì)的是基于西門子S7300系列PLC構(gòu)成的自動(dòng)售貨機(jī)監(jiān)控系統(tǒng),并且加入了觸摸屏E8000的設(shè)計(jì)。本文闡述了自動(dòng)售貨機(jī)的來(lái)源與發(fā)展,以及它在國(guó)內(nèi)外發(fā)展的現(xiàn)狀,對(duì)自動(dòng)售貨機(jī)的方案進(jìn)行了論證,介紹了PLC的基本組成、特點(diǎn)以及工作原理,對(duì)基于西門子S7300系列PLC構(gòu)成的自動(dòng)售貨機(jī)系統(tǒng)整體設(shè)計(jì)過(guò)程進(jìn)行較為細(xì)致的論述。文中詳盡地介紹了自動(dòng)售貨機(jī)的各硬件組成,并完成了PLC外部接線圖。在PLC梯形圖的編寫時(shí),文中采用的是西門子PLC梯形圖專用編譯軟件SMATIC來(lái)進(jìn)行編寫。介紹了自動(dòng)售貨機(jī)的基本原理以及工作流程,然后以一次交易過(guò)程為例,把交易過(guò)程分為幾個(gè)程序塊,然后分別對(duì)程序塊進(jìn)行編程。具體說(shuō)明了可編程序控制器在自動(dòng)售貨機(jī)中的作用。PLC控制的自動(dòng)售貨機(jī)提高了系統(tǒng)的穩(wěn)定性,保證自動(dòng)售貨機(jī)能夠長(zhǎng)期穩(wěn)定運(yùn)行。關(guān)鍵詞可編程控制器(PLC;自動(dòng)售貨機(jī);梯形圖;ABSTRACTTHISPAPERISBASEDONTHEDESIGNOFSIEMENSS7300PLCCONSTITUTETHEVENDINGMACHINECONTROLSYSTEMANDTHEDESIGNOFTOUCHINGSCREENE8000THISPAPEREXPOUNDSSOURCEOFTHEVENDINGMACHINE,ANDITSDEVELOPMENTATHOMEANDABROAD,THESCHEMEDESIGNOFVENDINGMACHINESAREDISCUSSED,INTRODUCESTHEBASICCOMPOSITION,CHARACTERISTICSOFPLCANDWORKINGPRINCIPLE,BASEDONSIEMENSS7300PLCCONSTITUTETHEVENDINGMACHINESYSTEM,OVERALLWHOLEDESIGNPROCESSISDISCUSSEDPARTICULARLYTHEPAPERINTRODUCEDINDETAILTHEVENDINGMACHINE,VARIOUSHARDWAREANDCOMPLETEDPLCEXTERNALHOOKUPINTHEWRITINGOFPLCLADDERDIAGRAM,THESIEMENSPLCISSPECIALCOMPILEDSOFTWARESMATICLADDERDIAGRAMTOWRITEINTRODUCESTHEBASICPRINCIPLEOFVENDINGMACHINESANDWORKFLOW,ANDTHENTOATRANSACTIONPROCESS,FOREXAMPLE,THEPROCESSISDIVIDEDINTOSEVERALBLOCKS,THENRESPECTIVELYFORPROGRAMFORPROGRAMMINGBLOCKSPECIFYTHEPROGRAMMABLECONTROLLERINVENDINGMACHINESPLCCONTROLSYSTEM,IMPROVETHEVENDINGMACHINE,GUARANTEETHESTABILITYOFTHEVENDINGMACHINETOLONGTERMANDSTABLEOPERATION
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