Servers can expose UIElementsproviding user interfaces in the context of their FunctionalGroupcontainer. Clients can load such a user interface and display it on the Clientside. The hierarchy of FunctionalGroupsrepresents the tree of user interface elements.
The UIElementTypeis abstract and is mainly used as filter when browsing a FunctionalGroup. Only subtypes can be used for instances. No concrete UIElementsare defined in this specification. FDI (Field Device Integration, see IEC 62769) specifies two concrete subtypes
- UIDs (UI Descriptions), descriptive user interface elements, and
- UIPs (UI Plug-Ins), programmed user interface elements.
The UIElementTypeis specified in Table 16.
Table 16– UIElementType definition
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Attribute |
Value |
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BrowseName |
UIElementType |
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IsAbstract |
True |
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DataType |
0:BaseDataType |
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References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Other |
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Subtype of the 0:BaseDataVariableTypedefined in OPC 10000-5. |
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Conformance Units |
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DI Information Model |
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The Valueattribute of the UIElementcontains the user interface element. Subtypes have to define the DataType(e.g., XmlElementor ByteString).