Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

  • Name
    • The name of the History Store.
  • Enabled
    • Checkbox to enable/disable the History Store. Not selected by default.
  • Type
    • The type of History Store.
  • Edge Node Tag Capacity
    • The maximum number of tag change events to store (per , for each edge node ) folder, before dropping the oldest stored tag change event.
    • A tag change event is triggered by either a change in value or quality and results in the tag's Qualified Value (which has three attributes of value, quality and timestamp) being stored. 
    • The Edge Node Tag Capacity is independent from, and in addition to, the Device Tag Capacity
  • Device Tag Capacity
    • The maximum number of tag change events to store (per device) , for each device folder, before dropping the oldest stored tag change event.
    • A tag change event is triggered by either a change in value or quality and results in the tag's Qualified Value (which has three attributes of value, quality and timestamp) being stored.
  • Flush Quantity
    • The maximum number of tags to publish in a single message upon reestablishing communication.
  • Flush Period
    • The period to wait in milliseconds between publishes when flushing messages upon reestablishing communication.

...