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The zenon Historian is used to record historical data. The values can be recorded cyclically, event triggered or spantaneous.
For the cyclic recording you define a scan rate (e.g. every five minutes). In this scan rate the values of the linked variables are written into the archive.
For the event triggered archiving you define a bit variable. Whenever the value of this variable changes to 1, the values of the linked variables are written into the archive.
With spontaneous recording the values of the linked variables are written into the archive, whenever they change theri values.
The raw data of a basic archive can lateron be compressed in a following archive.
You will find the Archive Server in the Project Manager.
