APIS Chronical
APIS Chronical is an event-server and historian designed for efficient monitoring, storage, and retrieval of large numbers of events and alarms.
Features
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Customizable event type hierarchy based on the OPC UA event model
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Multiple independent event source hierarchies
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Custom attributes on event sources, types and fields
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Online incremental backups
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Non-lossy data compression
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Standard OPC UA AC interface for event subscriptions and historical access
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Custom DCOM interface for configuration, monitoring and querying
To enable logging of events and alarms, the Database Horizon property must be modified.