基于PLC的闸门自动控制系统的设计与实现

PLC杨朋林1,赵成萍2,施一潭2(1,610072;2,610064):,,,PLC,,:PLC;;;;:TP273:A:16724984(2006)05010703StudyandimplementationofautomaticcontrolofstrobesystembasedonPLCYANGPenglin1,ZHAOChengping2,SHIYitan2(1SichuanGeneralFireBrigade,Chengdu610072,China;2SchoolofElectronicsandInformationEngineering,SichuanUniversity,Chengdu610064,China)Abstract:Intheprocessofwaterinformation,safeandreliableandautomaticcontrolofstrobewasthefocusofattentionallalongInordertomeettheneedsofstrobecontrol,ThisPaperintroducedathreelayersstructureofstrobecontrolthatbasedonthelayeroflongrangecontrol,thelayerofcentralizecontrolandthelayeroflocalcontrol,andimplementeditwithadvancedtechnologyofPLCandFieldBus,itavoidedriskofadditionalcentralizecontrolThissystemhadbeenappliedtostrobeengineeringoftongjiyanandrunwellKeywords:PLC;FieldBus;Threelayersstructure;Automaticcontrollingofstrobe;Networksystemofdistributedmeasureandcontrol:20060416;:20060608:(GG0401):(1975-),,,,,1,,-PLCPLCPLC[1]PLC,[2~4],,PLCDCS[5,6],PLC,2,,,,,,(),,,,32520069CHINAMEASUREMENTTECHNOLOGYVol32No5Sept2006,,,,,3PLC3122,S7200(CPU224),S7200,EM277,ProfiBus,ProfiBusPLCS7300(CPU315DP)PLC300,(S7200)PLC-300CP6511,Web32ProfiBusDPProfiBusDPRS4851电缆设计双绞线屏蔽电缆线径064mm回路电阻(直流)110km阻抗(3125千赫时)135~165每单位长度电容30pfmProfiBusDP9D(RS485)DP,22,22PLC,DP32,190022波特率(Kbits)9619293751875500150012000距离段()1200120012001000400200100DP,,DP,33,,,,16,PLC16(EM22116DI)10820069,S7200,,4STEP7SIMATICSIMATICSTEP7:(1)SIMATICS7200STEP7MicroDOSSTEP7MicroWIN(2)SIMATICS7300ST400SIMATICM7300M7400SIMATICC7STEP7,,5(PLC)[6]PLC,PLC,,,,,,,2005,,[1][J],2006,22(1):7-9[2]PLC[J],2006,1:48-51[3]PLC[J],2005,10:41-43[4],PLC[J],2005,3:33-38[5],PLC[M]:,2005[6][M]:,2002325:PLC109