罐区钢带浮子液位变送器的改造

:2004204210:(1959-),,,.33Vol.3No.320049JOURNALOFANHUIVOCATIONALTECHNICALCOLLEGESep.2004(,221008):,PLC,:;PLC;;;:TE974:A:167229536(2004)0320016202Abstract:Thispaperdiscussesthemethodoftransformationofhydraulicsteel2beltfloattransfeederattankareawithPLC.Andthepossibilityisanalysedfromtechniqueandeconomicperformance.Keywords:tankarea’sautomation;PLC;liquid’slevelinthetank;GrayCode;naturalcode1,,,,,,,,,,2,,,,80,(Roesmont)(VAERC),,,,,©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),19000,,:(1);(2),,MSC-51,,,6000,,,,,BCD,BCD(VAERC)000000000810001100100010001910011101200100011101010111130011001011101111104010001101211001010501010111131101101160110010114111010017011101001511111000,14,1mm,14,AELTASC500PLC16,RVVP-1812,14PLC4,PLC,100,PLCIöOPLC14,,PLCONOFF2msPLC,PLC8ms,,,,1mm,14PLC,PLCON8Vö2mA,OFF4Vö1mA,PLC16,700,PLC16,ON19V,OFF0V,PLC,PLCAöDPLCPLCRS232öRS485,,,(PLC+),,PLC16,SC500PLC2416,,PLC,(21)713:©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:[1],,.Matlab[M].:,2001.[2].MATLAB[M].:,1996.[3],.[M].:,2000.[4].[M].:,1999.(:)(17)5,,,,,,PLC,:[1],.VB6.0[J].,2002,(8):65-67.[2]H.D.[M].:,1993.[3],,.[M].:,2000.224-227.(:)123,:MATLAB©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.