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1、外文翻译资料 AiroperatedmovesthecarriervehicleandthePLCcontrol气动移载机与PLC控制Airoperatednamelyusestheairpumpandtheairvalvecontrolaircurrent,thepositivegoverningbarometricpressureandthecurrentcapacity,enabletheairtohavethevibration.气动即采用气泵和气阀控制气流，直接控制气压和流量，使得空气发生振动。Theprogrammableco
2、ntroller(PLC)istakenthemicroprocessorasthecore,collectioncomputertechnology,theautomatedcontroltechnologyinabodyonenewindustrycontrolsystem.PLChasusedthemodelcomputerstructure,mainlyincludesCPU,RAM,ROMandtheinput/Outputconnectionelectriccircuitandsoon.IfregardsasPLCasystem,th
3、issystemiscomposedbytheinputvariable-PLC-outputvariable,theexterioreachkindofswitchingsignal,thesimulatedsignal,thesensorexaminethesignaltookPLCtheinputvariable,theyinputafterthePLCexteriorposttotheinternalregisterin,afterthePLCinteriorlogicoperationorothereachkindofoperation
4、,processingdeliverstheoutputterminal,theyarethePLCoutputvariable,carriesoneachkindofcontrolbytheseoutputvariablestotheauxiliaryequipment.可编程控制器（PLC）13外文翻译资料是以微处理器为核心，集计算机技术、自动化控制技术于一体的一种新型工业控制系统。PLC采用了典型的计算机结构，主要包括CPU、RAM、ROM和输入/输出接口电路等。如果把PLC看作一个系统，该系统由输入变量-PLC-输出变量组成，外部的各种开
5、关信号、模拟信号、传感器检测的信号均作为PLC的输入变量，它们经PLC外部端子输入到内部寄存器中，经PLC内部逻辑运算或其它各种运算、处理后送到输出端子，它们是PLC的输出变量，由这些输出变量对外围设备进行各种控制ThePLCcontrolsystemadoptsgenerallyeasytounderstandandtograsptrapezoidalchartlanguageandfaceindustrycontrolsimpleinstruction.Theimageisdirect-viewing,isbasedonthefieldbus
6、technology,openscompletely,andusestheadvancedsoftwareandhardwaretechnology.ThePLCcontrolhasthestructuresimplynimble,theanti-jammingabilitystrong,safereliable,installstheconvenience,thefailureratelowly,themaintenanceissimple,largescalesavestheusecostthecharacteristic,cansatisf
7、yeachkindofcentersmallscaleprocesscontrol,thesmoothlogiccontrolandthedataacquisitiondutydemand,widelyhasusedingraduallyintheindustrycontrolsystem,includingdomainandsoonmetallurgy,miningindustry,machinery,lightindustry,hasprovidedthepowerfultoolfortheindustrialautomation.PLC控制
8、系统一般采取易于理解和掌握的梯形图语言及面向工业控制的简单指令,形象直观，是基于现场总线技术、完全开放，采用先进的软硬件技术。PLC控制
