WinCC OA - Inhouse DEV Package. Consisting of a temporary license, recommended for certified partners. License is valid for 1 year, includes 1 WinCC OA Server license (unlimited functionality) with almost all options (not including Video, BACnet and SmartSCADA). To set up a redundant systems, two licenses are required. The excluded extensions can be purchased separately. Automatic, chargeable extension by 1 year if not canceled 3 months prior to expiration. Includes basic support according to service level description.