Why is an OPC error "No such interface supported(0x80004002)" reported when starting a OPC DA process?
What causes the following log messages?
When the OPC DA Client is started:
WCCOAopc (1), 2016.11.23 08:07:02.465, IMPL, WARNING, 54, Unexpected state, OPCServer, CheckSrvInterfaces, Server does not support IOPCBrowseAddressSpace -> no browse info (No such interface supported(0x80004002))
WCCOAopc (1), 2016.11.23 08:07:02.465, IMPL, SEVERE, 54, Unexpected state, OPCServer, CheckSrvInterfaces, Server does not support IOPCServer -> server cannot be used (No such interface supported(0x80004002))
When the OPC HDA Client is started:
WCCOAopchda (2), 2016.11.23 08:11:58.283, PARAM,SEVERE, 54, Unexpected state, OpcHDAClientServer, OpcHDAClientServer, Error when creating instance for server WINCC_OA.OPCHDA. hr = 524306, -2147467262, -2147467262, 0
While browsing for available OPC DA Servers in the panel System Management --> OPC Driver --> OPC Driver:
WCCOAui1:CreateInstance Failed (80040154)
WCCOAui1:Are you sure you have registered the latest OPCPROXY.DLL?
Answer:
These log message occur if the installation of the OPC Core Components is missing or if there are different versions installed.
See below for a detailed description:
- No OPC Core Components are installed
- WinCC OA 3.14 or newer was installed after the installation of WinCC OA 3.12 or WinCC OA 3.13 or another installation for the OPC Core Components Redistributable 105.0 was made.
During the setup an update of the OPC Core Components Redistributable (x64) from 105.0 to 106.0 is made. This update sometime fails and therefore the new version 106.0 is not installed properly.
If you try to manually uninstall the OPC Core Components 106.0 you will receive this error message:
There is a problem with this Windows Installer package.
A program required for this install to complete could not be run...
Solution:
Please use the "Repair" function available via the Windows function "Control Panel" --> "Programs and Feature"
If you have not installed any OPC Core Components before the installation of WinCC OA 3.14 or a newer WinCC OA version the upgrade of the OPC Core Components is not necessary.
If the current OPC Core Components (x64) 106.0 have already been installed before the installation of WinCC OA 3.14 or newer, the error does not occur.