5.7.3 Default configuration

This specification defines a manner of exposing the configuration associated with a HistoricalNode (both HistoricalDataNode and HistoricalEventNode), but this configuration is not required for all nodes. If the configuration of individual nodes is not provided for all nodes, the Historian shall expose a default instance under the Server Object. If HistoricalDataNodes exist without a referenced configuration, an Object with a BrowseName of “DefaultHAConfiguration” shall be exposed. If HistoricalEventNodes exist without configuration, an object with a BrowseName of “DefaultHEConfiguration” shall be exposed. For any Node that does not have a referenced historical configuration but does support history, the default appropriate configuration shall be applied (DefaultHAConfiguration for Variables, DefaultHEConfiguration for Objects).

A Client shall assume the default configuration for any HistoricalNode that does not reference a historical configuration.

The DefaultHAConfiguration object is defined in Table 14.

Table 14 - DefaultHAConfiguration definition
Attribute Value
BrowseNameDefaultHAConfiguration
References NodeClass BrowseName DataType TypeDefinition
OrganizedBy by the Server Object defined in OPC 10000-5
HasTypeDefinitionObjectTypeHistoricalDataConfigurationTypeDefined in 5.2.2
ConformanceUnits
Historical Access Default HA Configuration

The DefaultHEConfiguration object is defined inTable 15.

Table 15 - DefaultHEConfiguration definition
Attribute Value
BrowseNameDefaultHEConfiguration
References NodeClass BrowseName DataType TypeDefinition
OrganizedBy by the Server Object defined in OPC 10000-5
HasTypeDefinitionObjectTypeHistoricalEventConfigurationTypeDefined in 5.4.3
ConformanceUnits
Historical Access Default HE Configuration