Applies To:
  • CitectSCADA 5.21, 5.30, 5.31, 5.40

On Windows 2000 with Service Pack 2 installations the Express Wizard will fail when attempting to edit an I/O Device. The Express Wizard responds with "Unable to open 'units.dbf'" and exits after OK button is pressed.

This is due to a bug in Service Pack 2 of Windows 2000.


CIT has confirmed this to be a problem in Citect for Windows versions 5.21 to 5.40. This problem has been fixed in version 5.40 Service Pack A.