[doc]-plc应用英文资料外文翻译--plc在冰蓄冷中央空调系统控制中的应用-plc设计

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1、PLCintheIceStorageCentralAir-conditioningSystemofControl1IntroductionIcestorageair-conditioningistheCentralValleywillberedundantpowergridelectricityatnighttoformicecoldstorage,electricityconsumptionpeakduringthedaywhentheicewillmelttoprovideair-condit

2、ioningservices.AsinmostpartsofChina'selectricityatnightismuchlowerthanduringtheday,usingicecoldstoragecentralairconditioningcansignificantlyreducetheuser'soperatingcosts. Icestoragecentralair-conditioningsystemconfigurationofequipmentthanconventionala

3、ir-conditioningsystemtoincreasethenumberandrequireahigherdegreeofautomation,butitautomaticallytomeettherequirementsoftheair-conditionedbuildingsthroughoutthedayundertheconditionsofthedaywillbewithalltheenergyspent,thelargestAtleasttosaveoperatingcosts

4、.2Controlsystem.Controlsystemfromthenextcrew(thescenecontrolworkstations)andPC(centralmanagementworkstations),withthecrewusingprogrammablelogiccontroller(PLC)andtouchscreen,PCusingindustrial-gradecomputersandprinters,systemconfigurationnecessaryifthea

5、nnexCommunicationsequipmentinterfacecards,modems,etc.,toachievetheparametersofthestoragesystemandautomaticintelligentrun.      Thecrewatthesceneandtouch-screensystemcancontrolparametersettingsanddata.PCremotemanagementandprinting,whichincludesthecrewa

6、ndallthefeaturestouchscreen.FollowingthesystemasawholecrewoftheindustrialPLCasthecore,theautomatedcontrol.Controlequipmentanddevicesinclude:detectionsensorcomponents,electricalvalves,converter,andsoon.2.1Underthemachinesystem(Regionalworkstations)2.1.

7、1TP21touch-screen      TP27usedasacolortouch-screenoperationpanel,completelyreplacetheconventionalswitchbutton,light,andotherdevicestocontrolmoreinterviewscountersclean.And,TP27touchscreencanberealizedatthescenestate,systemsettings,themodelchosen,thes

8、etofparameters,faultrecording,loadrecords,timeperiod,real-timedata,loadcurveandreportingstatistics,andotherfunctions,theChineseuserinterfaceintuitiveandfriendly.2.1.2SIEMENSPLC      SIMATICS7-300seriesPLCappliedtoallwalksoflifeandvariousoccasi