SIEMENS S7-1500 编程指南

(TIAPortal)WarrantyandliabilityProgrammingGuidelineforS7-1200/1500Entry-ID:81318674,V1.2,03/20142¤SiemensAG2014AllrightsreservedWarrantyandliabilityNoteTheApplicationExamplesarenotbindinganddonotclaimtobecompleteregardingthecircuitsshown,equippingandanyeventuality.TheApplicationExamplesdonotrepresentcustomer-specificsolutions.Theyareonlyintendedtoprovidesupportfortypicalapplications.Youareresponsibleforensuringthatthedescribedproductsareusedcorrectly.Theseapplicationexamplesdonotrelieveyouoftheresponsibilitytousesafepracticesinapplication,installation,operationandmaintenance.WhenusingtheseApplicationExamples,yourecognizethatwecannotbemadeliableforanydamage/claimsbeyondtheliabilityclausedescribed.WereservetherighttomakechangestotheseApplicationExamplesatanytimewithoutpriornotice.IfthereareanydeviationsbetweentherecommendationsprovidedintheseapplicationexamplesandotherSiemenspublications–e.g.Catalogs–thecontentsoftheotherdocumentshavepriority.Wedonotacceptanyliabilityfortheinformationcontainedinthisdocument.Anyclaimsagainstus–basedonwhateverlegalreason–resultingfromtheuseoftheexamples,information,programs,engineeringandperformancedataetc.,describedinthisApplicationExampleshallbeexcluded.Suchanexclusionshallnotapplyinthecaseofmandatoryliability,e.g.undertheGermanProductLiabilityAct(“Produkthaftungsgesetz”),incaseofintent,grossnegligence,orinjuryoflife,bodyorhealth,guaranteeforthequalityofaproduct,fraudulentconcealmentofadeficiencyorbreachofaconditionwhichgoestotherootofthecontract(“wesentlicheVertragspflichten”).Thedamagesforabreachofasubstantialcontractualobligationare,however,limitedtotheforeseeabledamage,typicalforthetypeofcontract,exceptintheeventofintentorgrossnegligenceorinjurytolife,bodyorhealth.Theaboveprovisionsdonotimplyachangeoftheburdenofprooftoyourdetriment.AnyformofduplicationordistributionoftheseApplicationExamplesorexcerptshereofisprohibitedwithouttheexpressedconsentofSiemensIndustrySector.Securityinforma-tionSiemensprovidesproductsandsolutionswithindustrialsecurityfunctionsthatsupportthesecureoperationofplants,solutions,machines,equipmentand/ornetworks.Theyareimportantcomponentsinaholisticindustrialsecurityconcept.Withthisinmind,Siemens’productsandsolutionsundergocontinuousdevelopment.Siemensrecommendsstronglythatyouregularlycheckforproductupdates.ForthesecureoperationofSiemensproductsandsolutions,itisnecessarytotakesuitablepreventiveaction(e.g.cellprotectionconcept)andintegrateeachcomponentintoaholistic,state-of-the-artindustrialsecurityconcept.Third-partyproductsthatmaybeinuseshouldalsobeconsidered.Formoreinformationaboutindustrialsecurity,visit://support.automation.siemens.com.TableofcontentsProgrammingGuidelineforS7-1200/1500Entry-ID:81318674,V1.2,03/20143¤SiemensAG2014AllrightsreservedTableofcontentsWarrantyandliability...................................................................................................21Preface................................................................................................................52S7-1200/1500Innovations.................................................................................62.1Introduction...........................................................................................62.2Terms...................................................................................................62.3Programminglanguages......................................................................82.4Optimizedmachinecode......................................................................82.5Blockcreation.......................................................................................92.6Optimizedblocks................................................................................102.6.1S7-1200:Setupofoptimizedblocks...................................................102.6.2S7-1500:Setupofoptimizedblocks...................................................112.6.3BestpossibledatastorageintheprocessoronS7-1500..................122.6.4Conversionbetweenoptimizedandnon-optimizedtags...................152.6.5Communicationwithoptimizeddata..................................................162.7Blocksizes.........................................................................................172.8NewdatatypesforS7-1200/1500......................................................172.8.1Elementarydatatypes........................................................................172.8.2Date_Time_Longdatatype................................................................182.8.3VARIANTdatatype............................................................................182.9Instructions.........................................................................................20