Historical Access

This section describes the information model associated with Historical Access (HA). It particularly includes additional and complementary descriptions of the NodeClasses and Attributes needed for Historical Access, additional standard Properties, and other information and behaviour.

The complete Address Space model including all NodeClasses and Attributes is specified in section Address Space. The predefined information model is described in section Information Model. The services to detect and access historical data and events, and description of the ExtensibleParameter types are described in section Services.