Login to the Plesk Control Panel
To create ODBC DSN connection click on "ODBC Data Sources".
Click on "Add new ODBC DSN"


Give "Connection Name" , "Connection Description" ,select Driver and press OK.

Select the proper "Login ID", "Password","Default Database for
the ODBC data source.
Click "Test" to test the connectivity with the database.Click "Next" and then "Finish" to complete the DSN creation.

Logout when you have finished.