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IDProjectCategoryView StatusLast Update
000680710000-005: Information ModelSpecpublic2021-05-04 15:21
ReporterMohit Agarwal Assigned ToJeff Harding  
PrioritynormalSeverityfeatureReproducibilityalways
Status closedResolutionfixed 
Summary0006807: Provide Generic Non-Hierarchical Reference in OPC UA Core Specfiications
Description

OPC UA defines generic Hierarchical References like HasComponent, HasChild, Organizes, etc.

But sometimes, in the systems, we just need a simple non-hierarchical reference without specific semantic, which could be useful to build the infrastructure to link various nodes of a given system.

In VDMA Industrial Joining Technologies - Tightening Working Group, we defined a simple reference called LinksTo to provide a generic way of linking any node.

The LinksTo is a concrete ReferenceType and can be used directly. It is a subtype of NonHierarchicalReferences. The LinksTo reference is symmetric and has no InverseName.
The semantic of this ReferenceType is to link various assets to provide an infrastructure to build the topology of a given system.
This LinksTo reference is defined only to provide basic link between various assets available in the system and there is no restriction on adding additional references in future versions of the specification or in the applications.
The SourceNode of References of this type shall be an Object.
The TargetNode of this ReferenceType shall be an Object
The LinksTo reference is formally defined in the following table.

Table – LinksTo Reference Definition
Attributes Value
BrowseName LinksTo
InverseName
Symmetric True
IsAbstract False
References NodeClass BrowseName Comment
Subtype of the NonHierarchicalReferences defined in OPC 10000-5

Steps To Reproduce

Not Applicable

Additional Information

None

TagsNo tags attached.
Commit Version
Fix Due Date

Relationships

related to 0006857 closedJeff Harding 10000-003: Address Space Provide Generic Non-Hierarchical Reference in OPC UA Core Specfiications 
related to 0006897 closedKarl Deiretsbacher 10000-007: Profiles Provide Generic Non-Hierarchical Reference in OPC UA Core Specfiications 

Activities

Jim Luth

2021-04-13 16:26

administrator   ~0014208

AssociatedWith may be is a better name. LinksTo implies and inverse LinksFrom.

Assign to Harmonization w.g. for name choice and rationalization.

Jeff Harding

2021-04-27 16:13

developer   ~0014267

Assume AssociatedWith for now and next week Wolfgang will confirm what name we will go with.

Jeff Harding

2021-04-27 20:07

developer   ~0014275

Created the AssociatedWith Reference type as 11.24 in Part 5.
Cloned to Mantis 6857 for Part 3 definition.
Waiting to resolve until we confirm the name.

Wolfgang Mahnke

2021-05-03 15:19

developer   ~0014289

Reviewed in the Base Relationship Working group: We are fine with name and text - thanks for adding

Jeff Harding

2021-05-03 17:22

developer   ~0014291

Confirmed name and definition is ok with the harmonization group.

Jim Luth

2021-05-04 15:21

administrator   ~0014313

Agreed to changes edited in telecon.

Issue History

Date Modified Username Field Change
2021-04-09 13:02 Mohit Agarwal New Issue
2021-04-13 16:26 Jim Luth Note Added: 0014208
2021-04-13 16:26 Jim Luth Assigned To => Wolfgang Mahnke
2021-04-13 16:26 Jim Luth Status new => assigned
2021-04-27 16:13 Jeff Harding Note Added: 0014267
2021-04-27 20:05 Jeff Harding Issue cloned: 0006857
2021-04-27 20:07 Jeff Harding Note Added: 0014275
2021-04-27 20:08 Jeff Harding Relationship added related to 0006857
2021-05-03 15:18 Wolfgang Mahnke Assigned To Wolfgang Mahnke => Jeff Harding
2021-05-03 15:19 Wolfgang Mahnke Note Added: 0014289
2021-05-03 17:22 Jeff Harding Status assigned => resolved
2021-05-03 17:22 Jeff Harding Resolution open => fixed
2021-05-03 17:22 Jeff Harding Fixed in Version => 1.05
2021-05-03 17:22 Jeff Harding Note Added: 0014291
2021-05-04 15:19 Jim Luth Issue cloned: 0006897
2021-05-04 15:19 Jim Luth Relationship added related to 0006897
2021-05-04 15:21 Jim Luth Status resolved => closed
2021-05-04 15:21 Jim Luth Note Added: 0014313