SIEMENS西门子 SMT 生产线中采用 HERMES 协议的横向机器通信.pdf

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STEP7/WinCCAdvanced/WinCCUnified/TIAPortal

Tableofcontents

Tableofcontents

1.Introduction6

1.1.Overview6

1.2.TheHERMESStandard6

1.2.1.ImplementedoptionalFeatures7

1.3.Restrictionsanddeviationsfromthespecification7

1.3.1.Versionrestrictions7

1.3.2.Memoryconsumptionandmessagesize8

1.3.3.DefaultString-sizes8

1.3.4.CommunicationLoad8

1.3.5.Concurrency,raceconditionsandresources8

1.3.6.RecommendedTCPportsandusageofhostnames8

1.3.7.GeneralSTRINGtypelengthrestriction8

1.3.8.HAcceptanceTest8

1.4.Hardwareandsoftwarerequirements10

1.4.1.LibraryPLCPerformance11

2.LibraryConcept12

2.1.Modularization12

2.2.Globalconfiguration12

2.3.Diagnostic12

2.3.1.HermesclientandmessageDiagnostics13

2.4.Configurationandcommissioning14

2.4.1.Moduleinterface14

2.4.2.Settingtheconveyorspeed16

2.5.MonitoringHermesandprocessstate16

2.5.1.Connectionestablishment17

2.5.2.Successfultransferofmaterial18

2.6.Adaptionofboardmessagesize,StringsandSubboards20

3.Programandlibrarystructure21

3.1.Containedprogramblocks21

3.2.Programflowwithinthelibrary22

3.2.1.Messagehandling22

3.2.2.HermesStateMachineandFeatures23

3.2.3.StateMachineindependentmessages24

3.2.4.SupervisorySystemandRemoteconfiguration(Verticalchannel)25

3.3.Exampleuserprogr