WinCC flexible 2008 is already installed and the WinCC V6.2 and WinCC V6.2 SP2 SQL server cannot be installed.
A possible cause is the influence of the different SQL instances that are installed product-specifically with the installation of WinCC flexible or WinCC.
It is imperative that you keep to the following installation sequence when you install WinCC V6.2 or WinCC V6.2 SP2 and WinCC flexible 2008:
- WinCC V6.2 or WinCC V6.2 SP2
- WinCC flexible 2008
If you have already installed WinCC flexible 2008, consider the following procedure.
You can only install the SQL server from WinCC V6.2 or WinCC V6.2 SP2 if the WinCC flexible instance of the Microsoft SQL Server 2005 Express Edition was deinstalled. WinCC flexible 2008 does not have to be deinstalled.
The table below describes the deinstallation of the WinCC flexible instance of the Microsoft SQL Server 2005 Express Edition:
Microsoft SQL Server 2005 SP1, Microsoft SQL Server 2005 SP2, Microsoft SQL Server 2005 Express