Local Historian (1-500 tags) - Perpetual




The Local Historian for KEPServerEX moves data collection, storage, and access closer to the data source to prevent data loss and improve operational efficiency via open access and a single product solution.

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  • Collects data consisting of a value, quality, and timestamp from any data source in the server (such as drivers, advanced plug-ins, or system tags)
  • Collects from both static and dynamic server tags
  • Supports persistence to a volume on the local machine (which can be a fixed drive or removable media)
  • Supports access to historical data via OPC HDA 1.20
  • Supports processed read requests (OPC HDA aggregates)
  • Supports data timestamps with one millisecond resolution
  • Supports configurable data collection scan rates as frequent as 10 milliseconds
  • Supports collection deadband
  • Has a configurable data retention policy
  • Imports historical data that has been backed up and removed from active use
  • Has a built-in historical data viewer for quick troubleshooting
  • Supports tiered licensing for up to 10,000 tags


  • OPC Historical Data Access (HDA)



Please allow up to one business day upon payment to receive your Kepware license via email. If you have any questions or concerns, please contact sales@sstautomation.com.

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Industrial Ethernet Series