多台高速压片机通信的OPC Server开发.pdf

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多台高速压片机通信的OPC Server开发pdf,多台高速压片机通信的OPC Server开发
Gcngyitartao yu Xitongsheji< 。 Window fdw AttrsAndFlays API。 Windows API Windows FILE FLAG OVERLAPPED。 。32 Windows hTemplatefil NULL Closehandle CreateFile BOOL Closehandle hComm / Createfile Read File HANDLE CreateFi Write File LPCTSTR lpszName 1 Readfile DWORD fdwAccess BOOL Read File DWORD fdw ShareMode haNdLE hFile LPSECURITY Ipsa LPVOID IpBuffer DWORD fdw Crcatc DWORD nNumbcrofBytcs ToRcad DWORD fdw AttrsAndFlags LP WORD IpNumberofByteSRead HANDLE tEmplate File LPOVERLAPPED lpoverlapped CreateFile szDevice fdwAccess fdw ShareMode lpsa fdw Create fdwAttrs AndFlags hTemplateFile ReadFile COMI COM2 fdwaccess 2 Write Fil GENERIC READ BOOL WriteFile GENERIC OR handlE hFile LPVOID IpButtc fdwShare Mode DWORD nNumberofBytes ToRead LPWORD lpNumberOfByteSRead LPOVERLAPPED lpoverlapi NULL Write File Readfile ReadFile fdw Create 2.2.3 OPC Server Create File OP OP P Gongyitantao yu Xitongsheji OPC da h OPC OPC foundation AddGroup、 AddItems、Read、 Write c opc aeps. dll, opecomn ps dll 1 COM opchda ps dll opcproxy dll CoM Olelnitialize windows actxprxy dll COM COⅣ aprxdist. exe opcen.exe、 InitInstance COM opCenum reserver Winnt REGSVR32 DLL OPC HKEY CLASSES ROOT LSID OPC OpCFoundation OPC oped idl、 opccomn. idl。 OPC OPCSever VC MIDI OPCServer IOPCSever MIDLopcda. idl OPCGroup OPC Opcda outdirecto OPCGroup IOPCItemMg opcda. idI opcda. h OPCItem OPCGroup pc oped. h IOPCSyncIO IOPCAsyncIO2 o opcda 1.C IIDIID write Item IOPCServer OPC OPCItem, OPCGroup OPCServer extern typedef struct IID unsigned long x ATL unsigned short sl ATL。 unsigned short $2 ATL C++ unsigned char c 8 unknown、 Iclass Factory、 IDispatch ID COM。ATL COM Typedef IID CLSID; ATL const lid iid iopcserver IDispatch 1 0x39c13a4d OxOllc Oxlld0 ( 0x96 Ox75 0x20 Oxaf Oxd8 Oxad 0xb3)) Interface >Method 28 Gongyi tartan yu Xitongsheji+ h VBS COM VC、VB COM VC IUnkno #include VB OPC oPC Server IDispatch OPC Server 2.2.4 OPC Server 1 OPC Server OPC OPC Server OPC OPC OPC 3算第升的习 二 1443133 值决国号: 排43314104]4 序⊥暴L 图4运行主界面 512 512 PLC OPC Server OPC Client PLC 106 2 OPC Se 100ms3 1000m 1000 l000 20090724 1976 OPC Data A

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