PROFIBUS-DP在横剪生产线控制系统上的应用

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1、山东大学硕士学位论文ABSTRACTToday,developinghi曲precision，highvelocityandlowcostpipeliningcontrolsystemofacrosscuttingsteelplate，isaleadingdirectionofindustryautomationtechnology．Developingmodenwholedigitalcontolsystemhasimportanteconomicalandsocialbenefit，forbreaking

2、technologyblockade，improvingoutputofhighqualitysteelplate，reducingitswastageandimport，increasingincomeofexport．Presently，acrosscuttingproductlineisprimaryfacilityoffactorywhichmachiningsteelplate．WeusePROFIBUS—DPnetwork，selectS7-300CPU315—2DPasthemasterstat

3、ion，andconnects4ET200M(slavestation)．4S蹦OREGDCMaster(6RA70)．And2TP270(TouchPanel)．Weusefuzzycontrolthatimprovereliabilityandcuttingprecisionofcontrolsystem．ByusingtouchpanelTP270，workerscansetandconsultimportanttechinicsparameters，consultoutputrecordsandala

4、rminformation，andcontrolthestartingandstopingtimeofmasterdrives，andadjustthespeedofmasterdrivers．Soworkerscandealwithallkindsofmalfunctionrapidly，improvethemanufacturingtechinicsandincreaseefficiencyofmanufacturing．DCMaster6RA70carlcommunicatewithmasterstat

5、ionbyCBP2board．What’smore．6RA70DCMasterhasstrongdiagnosticsfunction．Anditmakesthedebuggingsimple．Thepapermostlydiscussedtechniqueandskilloftouchpanel，whichsetupgoodmatterbaseforapllyingfuzzycontrolandself-study．Inaddition，thereareseveralproblemsindesigningt

6、hiscontrolsystem：multimotorsynchronization，theautomaticpositioncontroloflengthandthesteelroll’sgap,theautomaticfallingofsteelplateetc．Indebuggingmulti—motorsynchronization，wealsomeetsomeproblemsbecausemotors’poweraredifferentmadtheirmomentofinertiaarealsodi

7、fferent，thesemotorareasynchronousinstartandstopphase．Weresolvethisquestionbyadjustingtherisingtime，thefallingtimeandthesendingtimeonmasterdrives．Weresolvetheautomaticpositioncontrolandtheautomaticfallingofsteelplateby24vincrementaleneoder．Hereweusethecontin

8、uousworkmodel。InthisPaperweimportthefuzzycontr01．Basedontheaccelerationwegivethebrakedisplacementaccordingtoexpertknowledge．Afterstopingifthedisplacementerrorexceedstheallowablerange，thecontrolsystembe