System event filtering and notification for opc clients

Details System event filtering and notification for opc clients System event filtering and notification for opc clients

G - Physics

06

F

G06F 9/46 (2006.01) G06F 9/40 (2006.01) G06F 9/54 (2006.01)

Patent

CA 2490883

A system operating in a Windows environment that provides notification of events to OPC clients is disclosed. NT events generated in the system are filtered and converted to an OPC format for presentation to the OPC clients. The converted NT event notification includes a designation of the source that generated the NT event. The system includes a filter configuration tool that permits entry of user-defined filter criteria and transformation information. The transformation information includes the source designation, event severity, event type (simple, tracking and conditional), event category, event condition, event sub-condition and event attributes.

L'invention concerne un syst­me fonctionnant dans un environnement Windows, permettant de fournir une notification d'~v~nements ~ des clients OPC. Des ~v~nements NT g~n~r~s dans le syst­me sont filtr~s et convertis ~ un format OPC pour une pr~sentation aux clients OPC. La notification d'~v~nements NT convertis comprend une d~signation de la source ayant g~n~r~ l'~v~nement NT. Ce syst­me comprend un outil de configuration de filtre permettant une entr~e de crit­res de filtre d~finis par des utilisateurs et d'informations de transformation. Les informations de transformation comprennent la d~signation de la source, la gravit~ de l'~v~nement, le type d'~v~nement (simple tra×age et conditionnel), la cat~gorie d'~v~nement, la condition d'~v~nement, la sous-condition d'~v~nement et les attributs d'~v~nements.

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