YOKOGAWA培训手册8

7.DailyMaintenanceAndQuestions-0-Chapter7DailyMaintenanceandQuestionsInthischapter,wewillintroducethedailymaintenanceofCENTUMCS3000inordertomakesurethesystemrunreliably,stablyandefficiently.Besides,wewillanswersomethefrequentlyaskedquestions.7.DailyMaintenanceAndQuestions-1-7.1Hardwaremaintenance1.Checktheindicatorofthehardwareregularly,toseeifthereisanyabnormalsituation.2.Replacethebadcards.3.Ifthereisnosuitablealternativecards,youcanchangethechannelsNote:whenyouarereplacingthecards,payattentiontothefollowingquestions:Ifthereisdustordirtaroundthedevice,cleanitupwithavacuumcleanerorasoftcloth.Don’tinstallorremovethecardsorcables,whenthepowerison.Inthecourseofmaintenance,itisnecessarytoweartheanti-staticwristtopreventdamagecardsduetostatic.7.2FCSpreventionproceduresMeasurestopreventstatic:1Whentransportingorcarryingmaintenanceparts,putthemintoaanti-staticbagfirstofall.2Inthecourseofmaintenanceconnecttheanti-staticwristwithawirewhichisconnectedtothegroundthrougha1-ohmresistance.3Whencheckingthecardthatcontainsabattery,setthebatteryswitchtoOFFpositionorremovethebattery.4Whendoingthemaintenanceonatable,thetablemustbecoveredwithanti-staticmat,whichisconnectedtothegroundthrougha1-ohmresistance.7.3DailymaintenanceHumaninterfacestationHISalwayscheckthestatusofeachFCSfromtimetotimewhenthereissomethingwrongwiththeFCS,itwillinformtheoperatorstimelythroughsoundorinformationonHIS.7.3.1FCSsystemstatusdisplaySelectthesystemstatusdisplayitemonHIS,chooseoneFCSallstatusofthisFCSwillbedisplayedonCRTincludingthestatusofFCS,statusofinputandoutputmodule,statusofcommunicationbusandsoon.asfollow:7.DailyMaintenanceAndQuestions-2-7.3.2ThestatusindicatorCheckthestatusindicatoroftheprocessormodule,powermoduleandcontrolbus,asfollow:ModulenameindicatornameilluminatednotilluminatedcommentHRDYnormalabnormaldisplaythehardwarestatusofmoduleRDYnormalabnormalornoprogramdisplaythestatusofmoduleCTRLcontrolstatusabnormalorwaitingastothedual--FCSonlytheindicatorinonemoduleisilluminatedProcessmoduleCOPYcopyingnormalwhencopying,itisilluminated,otherwiseitisn’tilluminatedPowermoduleRDYnormalabnormaldisplaythehardwarestatusofmoduleRCVreceivingnotreceivingilluminatedwhenreceivingnormallySND-LsendingwaitingControlbusSND-Rsendingwaitingwhencommunicatingnormally,Oneofthetwoindicatorsisilluminated,7.4Questions&answers7.4.1questionprocessterminatedbecausetheHIS0163cannotbedownloadanswerlogonasthesuperuser,thenchangetoCENTUNuser7.4.2questionHowtomodifythesystemtimeanswermodifyitinCS3000theengineerprivilegeyoujusthavetomodifyitononeHIS,thenotherHISwillupgradeautomatically,asfollow:7.DailyMaintenanceAndQuestions-3-7.4.3questionWhenreinstallingCS3000,whatquestionsshouldpayattentionto?answerwecanreinstalltheHISanytime,buttheFCScanbereinstalledonlywhenitisstopped.PreparetheCDandkeycodesoftware,wecaninstallitaccordingtothemessages.EqualizeitaftertheinstallationdownloadtheCOMMONitemfirst,thendownloadtheHISifitisnecessary,downloadtag-list,withoutthisstepthereal-timedatacannotbedisplayedcorrectlyonHIS.Ifitistheengineerstation,You’dbettersavethebackupprojectfirst.Aftertheinstallation,putthebackupprojectinitsoriginalprojectfolder,registerandsetitasthecurrentproject.Remembertosavetheadjustedparametersfirst,otherwisesomeusefulalarmvaluesandPIDparameterswillloseaftertheinstallation.7.4.4questionAstotheanalogoutputmodule,whenthevalueofMVis0itscorrespondingcurrentisonly1.25mAwhenMVis50%thecurrentis12mA,whenMVis100%thecurrentis21mA,why?answerinordertomakesurethevaluecanopenfullyorshuttightly,wesetthefully-open/tightly-shutfunctioninCS3000,whentheoutputis0%infact,itsoutputis-17.19%,theresultis4-16*17.19=1.25mA.Whentheoutputis100%infact,itsoutputis106.25%,theresultis20+16*0.0625=21mA.Ifyoudon’tneedthisfunction,youcancancelitbysettingthefully-open/tightly-shutitemas“no”.7.4.5questionwhycannotdownloadonlineanswerintheengineerstation,aftertheinstallation,theengineerstationwillbesynchronizedwiththeFCSthroughthecontrolbusthenwhensavingthemodificationsintheengineerstationitwillbedownloadedintotheFCSautomatically.IfitcannotkeeppacewiththeFCSduetothenetwork,itcannotbedownloadedtoFCSwhenmodifyingitnexttime,Theonlysolutiontothisproblemistowait,untilltheproductionstoppednexttime,wedownloaditoffline.7.4.6questionHowtorealizecommunicationamongstationsanswerInsomeprojectsweneedtousethedatafromotherFCSwhendoingtheprojectconfiguration,forexample:inFCS0102,wedefinedthetag“TIC-001”wewanttouseitinFCS0101.Nowweonlyhavetoconfiguretheinstrument“TI-001”inFCS0101thenusethe7.DailyMaintenanceAndQuestions-4-“AREROUT”blocktotransmitdata,thatall.7.4.7questionHowtodeterminethepositiveandnegativedirectionofDCSadjusteranswerpositivedirection---theoutputofadjusterincreaseswhenthepositivedeviation(meansmeasuredvalueisgreaterthanthesettingvalue)grows,thatistheoutputofadjusterincreaseswhenthemeasuredvaluegrows.negativedirection---theoutputofadjusterdecreaseswhenthepositivedeviationgrows,thatistheoutputofadjusterdecreaseswhenthemeasuredvaluegrows.7.4.8question:HowtodeterminethedirectionoftheadjusterAnswer:weshou