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:(1981-),,,,:。:2009-03-17;:2009-05-03245(110)200910Vol.24No.5(SUMNo.110)MECHANICALMANAGEMENTANDDEVELOPMENTOct.20090,,,,,、,PLC,,,,。1PLCPLC,、,,,,,,,,。,,,(PLC,,CAD/CAM)[1]。2PLC2.1[2]PLC,,,,PLC,。1)PLC(2060—70)。PLC,。,I/O。,。,。,—。,PLC,,,,,,。2)PLC(2070—80,)PLC。,,PLC(CPU)。,PLC。,,,,,,,。,,,I/O,。,,,PLC。3)PLC(2080)2080,,,PLC。,PLC,。PLC。21,,(、),,PLC,ERP,MESPCS3,,,,,[3]。,,,。。PLC。,。CF,DKKD,S,YZ,。,,,PLC。PLC,PLC,,10PLC,30,。,,PLC。2.2,PLC。,PLC,(,030051)【】(ProgrammableLogicControllerPLC),PLC,PLC,,。【】PLC;;【】TP342【】A【】1003-773X(2009)05-0078-0378··245(110)200910,:PLC,,,;,;,、,,;,,,;,。DCS(DistributedControlSystem)。,,。3PLC[4]PLC,,,,PLC,。,PLC:,,,,,,,,。PLC87%,58%,40%,26%,18%[5],。3.1PLC,,,,,。,,,,,,。3.2,():,,,,。PLCA/DD/A,。PID。,,,。3.3PLC。,I/O,。。PLC,,,,。3.4PLC(,,),,,,,,,。,,,。,;,,,。3.5PLCPLCPLC。,,PLCPLC,。PLC,。4PLC[6]PLC:4.1PLC,,PLC,,,,,,,PLC++IPC+CRT。4.2PLCCPURS232/422/485,,。,,。:A-B,EtherNet,ControlNet,DeviceNet,Profibus-DPProfibus-FMS。4.3PLC,PLC,,,,,。,,,。PLC,,,。OPCOPC(OLEforProcessControl),,OPC,。,PLC、OPC。OPC,FCS。PLC,PLCCPU,CPU。:QPLC4CPU。79··245(110)200910!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(77)DesignoftheTrimmingDiefortheHotTubeCoverLIShu-ping1,WEIJian-jun1,LIANGHuan-yong2(1.DepartmentofMechanicalEngineering,GuangxiUniversityofTechnology,Liuzhou,Guangxi545006,China;2.LiuzhouGuojiEnterpriseCO.,Ltd,LiuzhouGuangxi545006,China)〔Abstract〕Throughthetechnologicalanalysisofthetrimmingprocessforthehottubecover,thestructureofthetrimmingdiehasbeendetermined.Practicalprdcuctionprovesthatthediestructureisproperandvaluableforintroduction.〔Keywords〕Hottubecover;Trimmingdie;Design1)、Cr12MoV1,60HRC~62HRC,;2)、,、。,45,43HRC~48HRC;3),,,。25mm,45,,;4),,,、;5)。,,,GB/T70.1-2000M10,,,,,GB/T119.1-20008。41),,,,。2),。[1].[M].:.2005.[2].[M].:.2005.4.4。PLC,,,,,,,,,PLC,PLCDCS,PLC()+DCS()PLC+IPC。4.5PLC,,,。:1);2)。,。,,PLC。,PLC,,,PLC。:,4.5~45Mbps,,,,,“”。,,,,PLC,,“”。,PLC,,,,,,,。5PLC,,,,,,。[1],.PLC[J].,2006(6):99-102.[2].[M].:,2006.[3].PLC[J].,2005(5):8-12.[4](Geller,D.A.).[M].:,2006:61-62.[5],.[J].,2003(1):34-35.[6].PLC[J].,2005(25):70-71.DevelopmentandApplicationProspectsofPLCLIUWei-ping,WANGMing-quan(CollegeofInformationandCommunicationEngineering,NorthUnivorsingofChina,Taiyuan030051,China)〔Abstract〕PLC(ProgrammableLogicControllerreferredtoasPLC),thepaperelaboratesthegonerationanddevelopmentofPLC,andintroducesthepowerfulcontrolperformanceandtheapplicationinproduction.ThePLChasbecomethekeypointinautomationfield.Thepaperalsoforecastsitswelldevelopmentandwidelyapplication.〔Keywords〕PLC;Developmenttrends;Applicationprospects80··
本文标题:PLC的发展及应用前景
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