8 OPC UA ReferenceTypes ToC Previous Next

8.4 Requires (IsRequiredBy) Reference Type ToC Previous Next

The OPC UA ReferenceType Requires is used to describe the coupling between a power train and axes from the axis point of view. An axis has a Requires reference to all powertrains that need to move such that only this single axis moves.

For examples see Annex B.1.8.

The SourceNode of this type shall be an ObjectType or Object and the TargetNode shall be an Object.

Table 52 – Controls Reference Definition

Attributes Value        
BrowseName Requires        
InverseName IsRequiredBy        
Symmetric False        
IsAbstract False        
Subtype of the HierarchicalReferences defined in OPC Unified Architecture Part 5          
References NodeClass BrowseName DataType TypeDefinition ModellingRule

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