基于S7-1200PLC的变频调速恒压供水系统

262()Vol.26No.220116JOURNALOFQINGDAOUNIVERSITY(E&T)Jun.2011:10069798(2011)02001805基于S71200PLC的变频调速恒压供水系统王兵,徐淑华(青岛大学自动化工程学院,山东青岛266071):,S71200PLC,MM440PLC,,PID,S71200PLC,,,,,:S71200PLC;;;PID:TP273;TU991.62:A:20110317:(1985),,,:,,,,,,,,,[1],(PLC),,PLC,,,PLC,,(),,PLC,,,,,11,11PLC4,P1~P3,,10,8,6kW,P4,,12kW,PLC,;V1~V9,V1~V3V9,,V4~V6,,V7V8;,,PLC,PLC,,,,3,;,PLC2,:S71200PLC1P1,,,PID,,,PLCP1,,P2,,11,PLCP2,,P3,,213,,,,PLCP2,P1P2;,PLCP1,P1,11,321,,22.1PLC,P1~P3,,PLC6PLC1;PLC41;P1~P3PLC3;PLC1;,,,1PLC;,,1,PLC1,PLCSIMATICS71200,S71200SIMATICS7200SIMATICS7300,S7PLC,S71200S7200S71200S7200,,,,S71200CPU,,CPU;19()26,8,3,S72007;CPUPROFINET,HMIPLC,,[2],S712002.2,,YTZ150,0~1MPa,001MPa0~1MPa0~10V,,,,,PLC2,,PLC2.3MM4,MM420PI;MM430MM440PID,PIDMM420;MM430;MM440,,,MM440,,,,,MM4401~5,PTC[3],MM440PID,,(0~10V)FIFC,,,,,PID22PID,MM440,P0010=30,P0970=1,P,,1[4]3STEPBasicV10.533,S71200STEPBasicV10.5,S7200MicroWINV4.0;(PLCHMI);();;,WinCCWinCCflexibleSTEPBasic,202,:S71200PLC1P000311P000407P070022P000312P0004010P0701117P0702117P070319P000311P0004010P100022P000312P0004010P1001010P1002530P100310503STEPBasicV10.5,P1~P3,,23,,,,:P1~P3,,,,,,421()2644S71200PLC,PIDMM440,,,,,,,,,S71200PLCMM440,,,:[1].PLC[J].,2008,34(26):189190.[2].S71200[M].:,2009.[3].MICROMASTER440[M].:(),2003.[4].MICROMASTER4400.12kW250kW[M].:,2003.(27)222,:CondomPackagingMachineControlSystemZHANGXiuxiu,WANGZhengyan,HANZhuoyu(CollegeofAutomation,QingdaoUniversity,Qingdao266071,China)Abstract:Thispaperintroducesthecondompackagingmachinecontrolsystemsusedtoimplementautomaticcondompackaginganditscontrol.ThecontrolsystemisbasedontheOmronPLCprogramming,whichinvolvesthepneumaticcontrolsystem,humancomputerinterfacedesign,andPIDtemperaturecontrol.Itachievesautomationofthepackagingmachinesystem,andachievestheoperatorofthemachineoperationmonitoringandmaintenancethroughthemanmachineinterface.ThesystemusesOmronPLC,anditnotonlyisofhighreliability,lowcost,simpleoperation,butalsoimprovesproductivity,meetstheneedsoflargescaleproduction,withgoodeconomicandsocialbenefits.Keywords:PLC;packagingmachine;controlsystem(22)SystemDesignofVariableFrequencySpeedGoverningandConstantPressureWaterSupplyBasedonS71200PLCWANGBing,XUShuhua(CollegeofAutomationEngineering,QingdaoUniversity,Qingdao266071,China)Abstract:Accordingtothedemandofconstantpressurewatersupplyinmodernsociety,aconstantpressurewatersupplysystemwasintroduced.ItusedS71200PLCwhichisthelatestproductsinSiemenstoprocessthelogiccontrolandemployedSiemensMM440toadjustwaterpressure.FrequencyconverterandPLCarethekeycomponentsofsystemcontrol.Theyfollowupthedeviationbetweenthepipenetworkpressureandpressuregiven.ThroughoperationofPIDandswitchoveroffrequencyconversionandpowerfrequentlywascontrolledbyS71200PLC.Itcouldautomaticallycontrolthenumberofwaterpumpputintooperationandthespeedofmotorforrealizingautomaticregulationofcloseloopandsupplyingwaterunderconstantpressureandvarietyrunoff.Theresultsindicatethissystemhaslotsofadvantagesofpressureconstant,contracturesupplenessandoperationcredibility,anditreachesthetechnicalindice.Keywords:S71200PLC;constantpressurewatersupply;frequencyconverter;PID27