PCS 7 Process Historian provides centralized, long-term storage for process values collected by the operator system. It allows production and engineering personnel to review historical trends without depending only on the short-term archives maintained on the OS servers.
In a redundant architecture, the OS server pair continues collecting and managing process data while configured archive information is transferred to Process Historian. The exact behavior, capacity, and supported upgrade path depend on the installed PCS 7, WinCC, Process Historian, operating-system, and SQL Server versions.
Verify the Project Configuration
Before implementing or upgrading Process Historian, verify the current Siemens compatibility documentation, archive-variable counts, redundancy configuration, communication paths, and available buffering capacity.
Preguntas frecuentes
What is Process Historian?
Process Historian is the long-term archiving component used to retain production data.
Can redundant OS servers send data to Process Historian?
Yes, when the redundant server pair and archive connections are configured correctly.