3.3.3.1 General
The Attributes of Nodes, their DataTypes and descriptions are defined in OPC 10000-3. Attributes not marked as optional are mandatory and shall be provided by a Server. The following tables define if the Attribute value is defined by this specification or if it is server-specific.
For all Nodes specified in this specification, the Attributes named in Table 5 shall be set as specified in the table.
| Attribute | Value |
| DisplayName | The DisplayName is a LocalizedText. Each server shall provide the DisplayName identical to the BrowseName of the Node for the LocaleId “en”. Whether the server provides translated names for other LocaleIds is server-specific. |
| Description | Optionally a server-specific description is provided. |
| NodeClass | Shall reflect the NodeClass of the Node. |
| NodeId | The NodeId is described by BrowseNames as defined in 3.3.2.1. |
| WriteMask | Optionally the WriteMaskAttribute can be provided. If the WriteMaskAttribute is provided, it shall set all non-server-specific Attributes to not writable. For example, the DescriptionAttribute may be set to writable since a Server may provide a server-specific description for the Node. The NodeId shall not be writable, because it is defined for each Node in this specification. |
| UserWriteMask | Optionally the UserWriteMaskAttribute can be provided. The same rules as for the WriteMaskAttribute apply. |
| RolePermissions | Optionally server-specific role permissions can be provided. |
| UserRolePermissions | Optionally the role permissions of the current Session can be provided. The value is server-specifc and depend on the RolePermissionsAttribute (if provided) and the current Session. |
| AccessRestrictions | Optionally server-specific access restrictions can be provided. |