西门子自动化课程 28.docx
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西门子自动化课程 28.docx
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西门子自动化课程28
Trainingdocumentforthecompany-wide
automationsolution
TotallyIntegratedAutomation(TIA)
MODULED2
AS-Interface/integrationofaLOGO!
12/24RClogicmoduleandAS-Iinterfacemodule
ThisdocumentwasprovidedbySiemensA&DSCE(automationanddrivetechnology,SiemensA&DCooperateswithEducation)fortrainingpurposes.Siemensdoesnotmakeanytypeofguaranteeregardingitscontents.
Thepassingonorduplicationofthisdocument,includingtheuseandreportofitscontents,isonlypermittedwithinpublicandtrainingfacilities.
ExceptionsrequirewrittenpermissionbySiemensA&DSCE(Mr.Knust:
E-Mail:
michael.knust@hvr.siemens.de).Offencesaresubjecttopossiblepaymentfordamagescaused.AllrightsarereservedfortranslationandanycaseofpatentingorGMentry.
WethankthecompanyMichaelDziallasEngineeringandtheinstructorsofvocationalschoolsaswellasfurtherpersonsforthesupportwiththeproductionofthedocument.
PAGE:
1.Forward5
2.NotesfortheOperationofLOGO!
LogicModules7
3.TheFirstStepswithLOGO!
8
3.1Terminals8
3.2TerminalsfromLOGO!
8
3.3LOGO!
knowsthefollowingterminals9
3.4Blocksandblocknumbers9
3.5Blocks9
3.6Logicaloperations9
3.7BlockrepresentationindisplayfromLOGO!
10
3.8Assignmentofablocknumber10
3.9The4goldenrulesfortheservicingofLOGO!
11
3.10OverviewofthemenusfromLOGO!
12
4.ExampleExerciseSlidingGateControl13
4.1Requirementsforthegatecontrol13
4.2WiringofthegatecontrolwithLOGO!
12/24RC14
4.3Usedcomponents14
4.4Centraldriveandmonitoringofmoreindustrialgates15
4.5LayeredcontrolovertheAS-Interface15
4.6FunctionblockdiagramoftheLOGO!
solution16
5.PrograminputinLOGO!
17
5.1Changingintotheprogrammingoperationmode17
5.2LOGO!
changesintheprogrammenu17
5.3Programentering18
5.4Parameterizingofablock19
5.5LOGO!
switchedintoRUN22
PAGE:
6.ProgrammingoftheSIMATICS7-30023
6.1Newprojectgeneration23
6.2Hardwareconfigurationentering25
6.3DrivingtheslidinggateovertheAS-Interface26
6.4Controlprogramforthedrivingoftheslidinggate27
6.5EnteringorganizationalblockOB128
Thefollowingsymbolsstandforthespecifiedmodules:
Information
Programming
Exampleexercise
Notes
1.Forward
ThemoduleD2isassignedcontentwisetoIndustrialfieldbussystems..
IT-Communication
withSIMATICS7
1-2daysEmodules
Sequencer
Programming
2-3daysCmodules
Process
visualization
2-3daysFmodules
Additionalfunctionsof
STEP7-Programming
2-3daysBmodules
Industrialfieldbus
systems
2-3daysDmodules
BasicsofSTEP7-Programming
2-3daysAmodules
Learninggoal:
Inthismodule,thereadershouldlearnthebasicfunctionsoftheLOGO!
logicmodule24RCLB11withintegratedinterfacefortheAS-Interface.
Typicaltaskpositionsareexecutedbyapatternmachineandanexampleprojectisprocessedinthefollowingsteps:
GenerationofaprogramfortheLOGO!
12/24RClogicmodule
DebuggingoftaskpositioninRUNmodeofLOGO!
GenerationofaprojectforaPLCSIMATICS7-300
IntegrationofASiinformationfromtheLOGO!
12/24RClogicmoduleinthecontrolprogramoftheSIMATICS7-300CPU
DebuggingofthetaskpositionwithaPLCSIMATICS7-300andtheLOGO!
12/24RC
Requirements:
Forthesuccessfuluseofthismodule,thefollowingknowledgeisassumed:
KnowledgeintheuseofWindows95/98/2000/ME/NT4.0
BasicsofPLC-ProgrammingwithSTEP7(e.g.ModuleA3-‘Startup’
PLCprogrammingwithSTEP7)
CommissioningoftheAS-InterfacewithSIMATICS7-300(e.g.ModuleD1–AS-InterfacewiththeSIMATICS7-300andtheCP342-2)
Requiredhardwareandsoftware
1PC,OperatingsystemWindows95/98/2000/ME/NT4.0with
-Minimal:
133MHzand64MBRAM,approx.150MBfreeharddiskspace
-Optimal:
500MHzand128MBRAM,approx.150MBfreeharddiskspace
2SoftwareSTEP7V5.x
3LOGO!
12/24RClogicmodule
4MPI-InterfaceforthePC(e.g.PC-Adapter)
5PLCSIMATICS7-300
Exampleconfiguration:
-Powersupply:
PS3072A
-CPU:
CPU314
-Digitalinputs:
DI16xDC24V
-Digitaloutputs:
DO16xDC24V/0.5A
-CP342-2AS-Interface
6AS-Interfacepowersupply30V
7AS-Interfaceyellowdatacable
1PC
2STEP7
4PCAdapter
7AS-Interfacedatacable
6AS-Interface
powersupply30V
3LOGO!
24RCLB11
2.NotesfortheoperationofLOGO!
Logicmodules
LOGO!
istheuniversallogicmodulefromSiemens.
InLOGO!
thecontrolisintegratedwithservice-anddisplayunits.
Withtheservice-anddisplayunitsfromLOGO!
youcangenerateprogramsandeditandexecutesystemfunctions.
ExternalprogramsoveraninterfacefromaprogrammoduleoroveraPCcablecanbereadfromtheprogrammedsoftwareLOGO!
-SOFT.Inadditiontoprogrammingsoftware,youcanalsoexecuteasimulationofyourcircuitbythecomputerorprintoutoverviewplans.
Finishedpracticalusebasicfunctions(e.g.fortime-delayonswitch,time-delayoffswitchandcurrentsurgerelay,timeswitch,binarymemorybit,suchasin-andoutputsfordevicetype)arealreadycontainedintheLOGO!
logicmodule.
YousolvetaskswithLOGO!
:
-Inthehouse-andinstallationtechnology(e.g.housestairwaylighting,outsidelights,marquees,shutters,shopwindowlightingetc.),
-inanelectricalpanelbuilderandinmachines-andapparatusconstructions(e.g.gatecontrols,ventilationsystems,industrialwaterpumps,etc.).
FurthermoreLOGO!
canbesetforspecialcontroltosignalpreprocessing.ThroughtheAsi-Variant,theapplicationasadistributedperipheralispossiblewithseparateintelligencefromlocationforthecontrollingofmachinesandprocessors.Throughthis,controltaskscanbeaccomplishedintheLOGO!
logicmoduleinordertoreleasethemastercontrol.
Therearespecialvariantswithoutserviceunitsforserialusesinsmallmachinesandapparatusconstructions,inanelectricalpanelbuilderandinstallationrange.ThesemustbedownloadedoveraprogrammoduleoroverthePCsoftwareLOGO-SOFT.
3.thefirststepswithlogo!
Weindicatetheinputsofacircuitwithprogramming.ALOGO!
programisnotreallyanydifferentfromacircuitdiagrambesidesthewaythatitisrepresented.WecustomizedtherepresentationfromthedisplayfieldfromLOGO!
.Inthischapter,weintroducetoyouhowyouconvertyourapplicationsintoLOGO!
programswithLOGO!
.
Nextweintroducetoyouthe2fundamentaltermsterminalandblockandshowyouwhatiscontainedbehindthem.
Inasecondstep,wedevelopaprogramtogetherfromasimple,conventionalcircuitthatyoucanenterdirectlyintoLOGO!
inthethirdstep.Afterreadingafewpagesfromthehandbook,yourfirstprogramwillbestoredexecutioncapableinLOGO!
.Withtheproperhardware(circuit...)youcanalreadyexecutethefirsttests.
3.1Terminals
LOGO!
containsinputsandoutputs:
TheinputsareidentifiedwiththeletterIandatarget.WhenyoulookatLOGO!
fromthefront,youseetheterminalsfortheinputsontop.TheoutputsareidentifiedwithaQandatarget.Theterminalsoftheoutputscanbeseenonthebottomofthepicture.
3.2TerminalfromLOGO!
WeidentifyallconnectionsandstatesthatarefoundinLOGO!
applications.Thein-andoutputscancontainthestate‘0‘or‘1‘.State‘0‘meansthatnovoltageisappliedtotheinputs.State‘1‘meansthatvoltageisapplied.Thisinformationshouldbenothingnewtoyou.Wehaveimportedtheterminalshi,loandxinordertolightentheprograminputforyou.‘high‘(high)isthestate‘1‘and‘low‘(low)isthestate‘0‘.Whenyoudonotwanttoactivateaninputofablock,thenusetheterminal‘x‘.Youwilllearnaboutwhatablockisonthenextpage.
3.6LogicalOperations
Thesimplestblocksarelogicaloperations(e.g.AND,OR).
HerearetheinputsI1andI2connectedtotheOR-block.
Thelastinputoftheblockisnotusedsoitissetwithx.
Theotherspecialfunctionsarejustaseffective(e.g.currentsurgerelays,counters,timers)
3.7BlockRepresentationintheDisplayfromLOGO!
InthepictureweshowyouatypicaldisplayDisplayfromLOGO!
.Itisalwaysonlyablockrepresentation.Thereforeweimportedtheblocknumbersthatshouldhelpyoutocontrolthecircuitrelation.
3.8AssignmentofaBlockNumber
Wheneveryouinsertablockintoaprogram,LOGO!
givesthisblockablocknumber.LOGO!
showsyoutheconnectionbetweentheblocksovertheblocknumbers.Theblocknumbersonlyservefororientationhelpintheprogram.
Intheoverviewpictureyousee3displayviewsfromLOGO!
thattogethermaketheprogram.TheblocksfromLOGO!
areconnectedtooneanotherovertheblocknumbers.
3.9The4GoldenRulesfortheServicingofLOGO!
Rule1-the3-Finger-Handle
Enterthecircuitintheoperationmodeprogramming.Youarriveintheprogrammingoperationmodeinwhichyoupushsimultaneouslythe3buttonsCursorleft,CursorrightandOK.
Youmodifyvaluesoftimesandparametersintheparameterassignmentoperationmode.Youarriveintheparameterassignmentoperationmodeinwhichyousimultaneouslypushthe2buttonsESCandOK.
Rule2–Outputsandinputs
Youalwaysenteracircuitfromoutputtoinput.
Youcanconnectanoutputwithmoreinputs,butyoucannotswitchmoreoutputsontoaninput.Youcannotconnectanoutputwithaproceedinginputinsideoftheprogrampath.Switchbetweenmemorybitsoroutputsforeachinternalfeedback.
Rule3-Cursorandcursormovement
Bytheenteringofacircuit,itapplies:
Ifthecursorisrepresentedasanunderlinetheny
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