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Problem with S7-200 PCAccess Example

5/18/2010 6:01 PM	Rate (0)
thanhlbhn Posts: 1 Rating: (0)	Having installed V4.0 STEP 7 MicroWIN SP4 and V1.0 S7-200 PC Access SP3 on a new PC with Windows XP SP2 (For PC compatibilildad Access) generates the following exception: Unable to cast COM object of type 'System.__ComObject' to interface type 'OPC.Data.Interface.IOPCBrowseServerAddressSpace'. This operation failed because the QueryInterface call on theCOM component for the interfacewith IID'{39C13A4F-011E-11D0-9675-0020AFD8ADB3}' failed due tothe folowing error: Interfaz no compatible (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)). at OPC.Data.OpcServer.Connect(String clsidOPCserver) when running the sample application Visual Basic. Net How can I fix it? Our application is also developed in VB.Net 2005 Please help me. Thanks!
thanhlbhn Posts: 1 Rating: (0)
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5/19/2010 3:42 PM	Rate (0)
Darius Platinum Member Joined: 9/28/2005 Last visit: 12/9/2025 Posts: 2957 Rating: (243)	Hello, Firstly I suggest you to update PC Access to latest service pack which is SP4 http://support.automation.siemens.com/WW/view/en/39055669 Then upgrade Step-7 Micro/WIN to latest service pack which is SP7: http://support.automation.siemens.com/WW/view/en/33005232 Then you might find this information interesting for you: http://support.automation.siemens.com/WW/view/en/8675614 Now try again and check if you still have a problem.
	Best regards, Darius
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