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(User)PCUserPCPCPLCPCPLCPLCPCPLCPump--Role(Sysmgr)Role(Operator)UserPort()()ResourceResource()DevicePoint()--(Role)(User)(UserID)(UserName)(Resource)PLC--(Port)PLC(COM1COM2)DDE(Device)PLC(Point)PLCPLC(Point)MCGSMCGS”MonitorandControlGeneratedSystemMCGSMCGSMCGS3.MCGSWindowsPC4.MCGS”5.””6.”MCGS7.”8.”MCGS””9.MCGSMCGS10.MCGS11.”12.MCGSDCCW(DistributedComputerCooperatorWork)MCGS1.MCGSMCGSMCGSMCGS””MCGSMCGSMCGSMCGS2.MCGSMCGSMCGSifthenMCGS1.MCGSMCGSMCGS2.MCGSMCGS,:”MCGS3.MCGSMCGSTCP/IPModem4.MCGS”MCGS”MCGSMCGSMCGS.mcgMCGSWORK“D:\MCGS\WORK\MCGS1.mcg”获激获烁熟种种粗烁藏MCGSMCGS1001Ctrl+DMCGS:SR254017MCGSMCGSWindows95/98/NT“MCGS””“MCGS”MCGSMCGSMCGSMCGS”MCGS”MCGS”()[1]”MCGSDD\MCGS\WORK\X.MCG”(X012)[2]”[3]””()[1]””0”[2]0”””[3]””[4]”””””[1]”[2]”””[3]”[4]26[1][2]”1753[3]”4][5]”[6]12[7]””MCGS()”[1]”[2]”“Data1”“Da