The HasInterlock ReferenceType is a concrete ReferenceType that can be used directly. It is a subtype of the HasComponent ReferenceType.
The semantic is a part-of relationship. Figure 17 provides an illustration of how this ReferenceType is used. Multiple SourceNodes can reference the same TargetNode and a SourceNode can reference multiple TargetNodes.
Like all other ReferenceTypes, this ReferenceType does not specify anything about the ownership of the parts, although it represents a part-of relationship semantic. That is, it is not specified if the TargetNode of a Reference of the HasInterlock ReferenceType is deleted when the SourceNode is deleted.
The TargetNode of this ReferenceType shall be the InterlockVariableType or a Variable of InterlockVariableType or a subtype of InterlockVariableType.
The SourceNode shall be an instance of MDISChokeObjectType, MDISValveObjectType, MDISElectricChokeObjectType, MDISCIMVObjectType, MDISMotorObjectType or a subtype one of these. It may also be of a subtype of MDISAggregateObjectType that is being used for aggregation or one of these ObjectTypes.
Table 116 – HasInterlock Reference
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Attributes |
Value |
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BrowseName |
HasInterlock |
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InverseName |
InterlockOf |
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Symmetric |
False |
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IsAbstract |
False |
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References |
NodeClass |
BrowseName |
Comment |
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Subtype of the 0:HasComponent ReferenceType defined in OPC 10000-5 |
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ConformanceUnits |
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MDIS Choke Base |
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MDIS Electric Choke Base` |
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MDIS Valve Base |
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MDIS CIMV Base |
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MDIS Motor Base |
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