OPC software Local Historian

data collectionstorage

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. By plugging into the KEPServerEX connectivity platform, the Local Historian can connect to any device and add devices in real-time without operational downtime. The advanced plug-in architecture simplifies configuration, provides flexibility, and makes the information accessible across OPC HDA (an open standard). Performance 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