The Precedes ReferenceType is a concrete ReferenceType and can be used directly. It is a subtype of NonHierarchicalReferences.
The semantic of this ReferenceType is to link upstream process values to downstream process values.
The SourceNode of References of this type shall be of type ProcessItemType ObjectType.
The TargetNode of this ReferenceType shall be of type ProcessItemType ObjectType.
The Precedes ReferenceType is formally defined in the following table.
Table 235 – Precedes ReferenceType Definition
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Attributes |
Value |
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BrowseName |
Precedes |
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InverseName |
Follows |
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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 0:NonHierarchicalReferences defined in OPC 10000-5 |
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