I struggled with the same thing trying to add the card to the bus. You have to get the latest ESI files from Beckhoff and make sure you are using the latest Work Visual from Kuka. The Kuka expert article number "GC434" says "WorkVisual 6.0.9 or higher is required for operation of EL6xxx modules." At the current date of this posting, the latest version is 6.0.17