Short-term and long-term archiving

The operator system already includes a high-performance archiving system based on Microsoft SQL Server with cyclic logs for short-term archiving of process values (typically 1 to 4 weeks) and messages (typically 2 months). Data from the cyclic logs and batch data from SIMATIC BATCH can be exported time-controlled or event-controlled to the Process Historian for permanent archiving.

The Process Historian can be expanded by an Information Server to work as a reporting system. The Information Server can access the archived data in the Process Historian and in the operator stations in parallel.

Data managed in the Process Historian can be backed up on external storage media, such as an NAS (Network Attached Storage). This requires additional hardware and software that the utilized operating system supports.