Database

If you update a 3.8 project (or an older project) to the WinCC OA version 3.18, note that RAIMA archiving is not default anymore. (for more details see: History DB).

If you update a 3.8 project (or an older project) to the WinCC OA version 3.18, the system modifies all historic RAIMA file sets that are online. The file sets are modified due to

• The new alarm reduction (sum alerts in sum alerts)
• The possibility to have more than 255 WinCC OA systems
• The discrete alert handling
• The new data buffering of the RDB manager in the event of a failed database connection