资源描述：
《PLC及变频器技术毕业论文中英文资料对照外文翻译文献综述.doc》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、PLC及变频器技术中英文资料对照外文翻译文献综述PLCandinvertertechnoIogytrends1.ThedeveIopmenttrendoftheprogrammablecontroIIer“PLCisonekindspeciallyforthedigitaloperationoperationelectronicinstallationwhichappliesundertheindustryenvironmentdesigns.Itusesmaythecodingmemory,usesforinitsinternalmemoryop
2、erationandsoonactuatinglogicoperation,sequenceoperation,time,countingandarithmeticoperationinstructions,andcanthroughdigitalorthesimulation-likeinputandtheoutput,controlseachtypethemachineryortheproductionprocess.PLCandtherelatedauxiliaryequipmentshouldaccordingtoformawholeeas
3、ywiththeindustrialcontrolsystem,easytoexpanditsfunctiontheprincipletodesign]Inthe21stcentury,PLCwillhaveabiggerdevelopment.Technologicallyspeaking,computertechnology'snewachievementmorewillapplyintheprogrammablecontroller^designandthemanufacture,willhavetheoperatingspeedtobequ
4、icker,thestoragecapacitytobebigger,anintelligentstrongervarietytoappear;Lookedfromtheproductscalethatfurtherdevelopstosubminiatureandtheultra-largedirection;Lookedfromtheproductovercoatabilitythattheproductvarietywillbericher,thespecificationtobemorecomplete,theperfectman-mach
5、inecontactsurface,thecompletecommunicationfacilitywilladapteachindustrialcontrolsituationdemandwell;Lookedfromthemarketthatvariouscountrieswillproducethemulti-varietyproductthesituationtobreakrespectivelyalongwiththeinternationalcompetitionaggravating,willpresenttheminoritysev
6、eralbrandmonopolyinternationalmarkettheaspect,willpresenttheinternationalgeneralprogramminglanguage;Lookingfromthenetworkstateofplay,theprogrammablecontrollerandotherindustrialcontrolcomputernetworkconstitutionlarge-scalecontrolsystemistheprogrammablecontrollertechnologydevelo
7、pmentdirection.PresentcomputercollectionanddistributioncontrolsystemDCS(DistributedControlSystem)hadthemassiveprogrammablecontrollerapplication.Isfollowingcomputernetwork'sdevelopment,theprogrammablecontrollertakestheautomationdirectednetandtheinternationaluniversalnetworkimpo
8、rtantcomponent,outsideindustryandindustrynumerousdomaindispla
