ABB DCS培训课程T31516 Alarm and EventsRevA.docx

ABB DCS培训课程T31516 Alarm and EventsRevA.docx

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ABBDCS培训课程T31516AlarmandEventsRevA

Chapter16AlarmandEvents

TABLEOFCONTENTS

Chapter16AlarmandEvents1

16.1GeneralInformation3

16.1.1Objectives3

16.1.2Legend3

16.2AlarmandEvents5

16.2.1General5

16.2.2DataFlow6

16.2.3Storage7

16.3AlarmandEventPresentation9

16.3.1AlarmList9

16.3.2GraphicDisplay10

16.3.3Faceplate11

16.3.4AlarmBand11

16.3.5AlarmSequenceBar12

16.3.6EventList12

16.4AlarmOperations13

16.4.1Navigation14

16.4.2HowtoAcknowledgeAlarms15

16.4.3HowtoSilenceAlarms15

16.4.4AlarmStatusIndicationsinFaceplates16

16.4.5HowtoAddComments16

16.5CreatingAlarmsandEventsinControlLogic17

16.5.1AlarmEventLib17

16.5.2AlarmCondandAlarmCondM18

16.5.3TransmissionofAlarmData20

16.6AlarmandEventServiceConfiguration21

16.6.1AlarmManagerService22

16.6.2HowtoReducetheAlarmList23

16.6.3HowtoSetuptheEventCollectorService24

16.7NameUploader25

16.7.1ProblemDescription25

16.7.2NamesandDescriptionTexts26

16.7.3HowtoRuntheNameUploader27

16.8ConfiguringAlarmandEventListTemplate28

16.8.1LibraryStructure28

16.8.2HowtoCreateaNewTemplate29

16.8.3TheSortTab30

16.8.4ThePrioritiesTab31

16.8.5TheColumnTab33

16.8.6TheTime/DateTab34

16.8.7TheFilterTab35

16.8.8EventListTemplateConfiguration36

16.9AlarmandEventLists37

16.9.1AlarmListConfiguration37

16.10ExternalAlarms39

16.10.1ExternalAlarmConfiguration39

16.10.2ExternalAlarmSilence40

16.11HideAlarms41

16.12AlarmLogger（Printer）43

16.12.1AlarmandEventLoggerConfiguration43

16.12.2AlarmLoggerService44

16.1GeneralInformation

16.1.1Objectives

Oncompletionofthischapteryouwillbeableto:

∙Describehowalarmsandeventsaredistributed

∙Handlealarms（operation）

∙Createalarmsincontrollogic

∙Configurealarmandeventlists

∙Configureannunciationofalarms（externalalarm）

∙Setupanalarmlogger（printer）

16.1.2Legend

<>Indicatesakeyname.

|Indicateswhenyougofromonemenutoasub-menu.

BoldIndicatesamenunameoranoptioninamenu,orfilestructures

““Indicatesdialogboxbuttons,tabs,instructionsetc.

Indicatesstart/explanationofstudentactivity

16.2

AlarmandEvents

16.2.1General

Alarmsandeventsareusedtoinformtheoperatorofthestatusofprocessesandsystems.

Events

Theygiveinformationregardingchangesintheprocessstateandotheroperationaloccurrencesintheplant.

∙Processeventse.g.pressureinthereactorbacktonormal,etc.

∙Objecteventse.g.motorwassettomanualmode,valveopened,PID-controllersetpointwaschanged,etc.

∙AlarmsarealsopresentedintheEventList

∙TheEventLististhelogbookthatindicateswhathappenedintheplant

Alarms

Theyareasubsetofeventsthatalertyoutoanabnormalprocessorsystemstate.

∙Processalarmse.g.pressuretoohighinareactor,leveltoohighinatank,etc.

∙Objectalarmse.g.motortemperaturetoohigh,etc.

∙Alarmsneedtobeacknowledged

NOTE!

Allalarmsareevents,butnotalleventsarealarms.

IngeneralaneventisthetransitionofaBooleanvariablefromonestatetoanother（FalsetoTrueorTruetoFalse）.Inanalarmcondition,theoperatorisabletomonitorstatuschangesofacertainsignal.

Whensuchasignalchangesvalue,itcausesachangeinthealarmcondition.Thealarmconditionalsochangesifanyofthefollowingactionsarecarriedoutlocallyonanalarm:

∙acknowledgement

∙disabling

∙enabling

16.2.2

DataFlow

AnAlarmsystemisanimportantelementinalmostallmodernoperatorinterfacestoindustrialplants.

Alarmsaresignalsannouncedtotheoperatorbyanaudiblesound,someformofvisualindication,and/orwithamessageofsomekind.Thealarmindicatesaproblemandthepurposeistodirecttheoperator’sattentiontowardsplantconditions,sohecancorrectpotentiallydangeroussituationsintime.

1.Analarmlimitintheprocessisexceeded.Seelaterinthissectionforhowtocreatealarmsincontrollogic.

2.Amessageissentfromthecontroller,viatheOPCserver（ConnectivityServer）,tothealarm（Aspect）serverintheoperatorstation.

3.ThealarmisdisplayedontheOperatorWorkplace.

16.2.3

Storage

Alarms

Allalarmsarestored,bydefault,inthemainstorage.TheAlarmServeriscapabletosavethe10000（default）mostrecentalarmsina“circular”filebutthesizecanbechanged.

Byclickingthe“Edit”buttonintheAlarmStorageareayoucanconfigurethealarmstorage.

YoucansetthemaximumnumberofalarmswhichcanbestoredintheAlarmManager.

Events/SystemMessages

TheSystemMessageserverhandlesmessagesfromtheserver,connectedsystems,andworkplaceclients.NormallyyoudonotneedtoalterthedefaultsoftheSystemMessageServer.

NOTE!

Pleaserefertothemanualformoredetailedinformation.

Thetworeasonstochangethedefaultvaluesforthesystemmessageconfigurationaretoincrease/decreasethenumberofstoredmessages,ormakesurethesystemmessagesdonotoverflowthedisc.

16.3

AlarmandEventPresentation

Therearemanyindicationsofanalarmintheoperatorworkplace.Youcanaccessthealarmfunctionalityaspartoftheconfiguration（ApplicationBar,StatusBar,displayshortcuts）orthroughaspectsselectablefromaworkplace.

16.3.1AlarmList

Analarmlistonlyincludesthealarmsthatanoperatorneedstopayattentionto,normally:

∙unacknowledged

∙stillactivealarms

Thisisthemostfamiliarpresentation,alarmsendeventsarepresentedinalistformatwithonelineforeachalarm:

16.3.2

GraphicDisplay

Processandobjectalarmsarenormallyalsoindicatedontheprocessgraphicdisplaysbyredblinking.

Thefigureshowsthattherearealarmindicationsinthegraphicdisplay,andthereisanAlarmLineintheapplicationbaratthetopofthescreen.

AlarmLine

Theindicationsintheapplicationbararethemostimportantbecausetheonlyalarmsvisibleinagraphicwillbethesetoftagobjectsinthatgraphic.

Itisverysimilartoanyotheralarmlist,butitisalwaysonthescreenanditonlyhasthelatestthreealarmsinit.Thedesignersofthesystemcanfilterthisalarmlistsothatonlyaselectionofthealarmsforthesystemshowupiftheywantto.

16.3.3

Faceplate

Faceplateshavebydefaultanalarmindicationandthealarmcanbeacknowledged.

16.3.4AlarmBand

TheAlarmBandAspectisusuallyconfiguredtoappearintheApplicationBaroftheworkplace.Itappearsasagroupofbuttons,eachbuttonrepresentsonealarmlist.ClickontheAlarmBand（button）tocalluptheassociatedAlarmList.

Thenumberwithinthebuttonrepresentsthenumberofunacknowledgedalarms.Thecolorofthebuttonindicatesthehighestpriorityalarmthatisactiveinthatlist.Ifthebuttonisflashing,atleastonealarmisnotacknowledged.

16.3.5

AlarmSequenceBar

Hereeachalarmisrepresentedbyasinglebutton.Thebarisusuallysizedandarrangedhorizontallyacrossascreen.

16.3.6EventList

TheEventLististhelogbookthatindicateswhathappenedintheplant.

16.4

AlarmOperations

ThepicturebelowdisplaysatypicalviewofanAlarmandEventListaspect.Theinformationpresentedineachlistisorganizedinawaydefinedbyitsconfiguration（whatcolumnsshowupinwhatorderandhowthelistissorted）.

SortingColumns

Tosortacolumndoubleclickonthecolumnheader.Repeatthisactiontoreversethesorting.Forexample,sortingSourceNameoncemaycausetheitemsinthelisttobesortedinalphabeticalorder（A...Z）.Sortingasecondtimewillcausethesortingtobereversed（Z...A）.

Thesechangesarenotremembered.Eachtimethelistsarecalledupagaintheywillcomeupasthedefaultordertheyareconfiguredwith.YoucanalsoreturntothisorderbyclickingtheRestbuttononthetoolbar.

Toolbar

Usethe“PageDown”buttontoshowthenext500alarmsinthelist.

Stop/StartAlarmandEventUpdates

Youcanstoporrestartlistupdatesusingthe“Stop”button.

16.4.1Navigation

Ifyoudouble-clickonanalarmlineinthealarmlistthedefaultaspectfortheprocessobject/alarmwillappear,mostcommonafaceplate.

ContextMenu

Youcanright-clickonanalarmlineinthealarmlisttobringupthecontextmenu.Byusingthecontextmenuyoucanperformsomeactionsonthisalarmlineforexampleacknowledgetheselectedalarm,silencetheaudiblealarmoraddanote.

16.4.2

HowtoAcknowledgeAlarms

YoucanacknowledgealarmsforanAspectObjectinthefollowingways:

∙Clickonthe“AckState”boxforthealarminthelisttoacknowledgetheonealarm.Ifnotloggedonasoperatorblinkbehavioraroundcheckboxwillnotoccur.

∙Selectagroupofindividualalarmsandthen,

-select“AcknowledgeSelected”inthecontextmenuor

-pressthe“Acknowledge”button（greencheckmark）

∙Rightclickonanobjectin,forexample,aprocessdisplayorprocessgraphic,thenclickontheAcknowledgeverbinthecontextmenu.

∙Clickonthealarmstatusbuttoninafaceplate

NOTE!

Tobeallowedtoacknowledgeanalarmyouneedtobegrantedpermissionforthisoperation.

Alarmscanalsobeacknowledgedinaprocessgraphicdisplayorafaceplate.Thefollowingfigureshowstheseoptions:

16.4.3HowtoSilenceAlarms

Tosilenceanaudiblealarm,clickonthe“Silence”buttonorselect“Silence”inthecontextmenu.Thisisaoneshottypeactionthatsilencesthecurrentaudiblealarm.Ifanewaudiblealarmthenoccurs,thatalarmmustbesilencedagain.

NOTE!

Tosilenceanalarmdoesnotmeanthatthealarmisacknowledged.

16.4.4

AlarmStatusIndicationsinFaceplates

Faceplatesprovid