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Alarms and Conditions

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This section describes the representation of alarms in the OPC Unified Architecture. Included is the description of the representation of alarms in the OPC Unified Architecture address space, the definition of alarm notification formats, and the definition of filters used in alarm subscriptions.

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Part 9: OPC UA Specification - Alarms and Conditions: specifies the use of OPC Unified Architecture support for access to Alarms and Conditions. The base system includes support for simple Events; this specification extends that support to include support for Alarms and Conditions.