Relation Id Structure

A Relation Id contains different parts that, together, make the ID useful as additional information on objects in a station. The following diagram shows the basic parts of a Relation Id.

Figure 1. Parts of a Relation Id


  1. Relation Id

  2. Tag Dictionary

  3. Tag Name

  4. Tag Value

The following table provides definitions of the different parts of a Relation Id:

Relation Element
Description
Relation Id
The Relation Id is comprised of a dictionary and name, generally displayed as two pieces of text separated by a colon (:), as shown in the following example: <dictionaryNamespace>:<name>.
Tag Dictionary
The dictionary string is used to link or assign a tag to a particular "namespace" (tag dictionary). This is typically a very short string of one or two characters.
Tag Name
The name string provides the semantic information and is often paired with the Tag Value.
Tag Value
A string value assigned to the tag for more information, for example: building name, device name, location, or other.