DataTypeTemplates

All top-down projects start here. The Template editor of OpenSCD allows you to define your data model using a greenfield approach. If you are looking at this section of the wiki, your task likely involves defining a data model. For most users, this entails transitioning an existing signal list to IEC 61850 data model references.

The difference between a signal list and the data model defined in the IEC 61850 lies in the hierarchical structure:

Logical node
Data object
Data attribute
(Enumeration)

This hierarchical structure is defined in the DataTypeTemplates section of an SCL file, where you define and reference four elements: LNodeType, DOType, DAType and EnumType. Each element builds upon the other. Essentially, to define a LNodeType, or, for example, an LLN0 logical node class, you must already have some defined DOTypes, which in turn require defined DATypes, and for some of those (ENx), you also need some EnumTypes.

This complexity can be challenging for beginners to grasp. To assist users, especially those unfamiliar with this aspect of the standard, such as 7-4, 7-3, 8-1, OpenSCD offers templates, which serve as a pre-defined data model. These templates include a wide range of logical node classes with proper references to DOType, DAType and EnumType.

You can check if OpenSCD has a template for a required logical node class in the Add LNodeType wizard (under Pre-defined lnClasses from templates). For more details, please refer to start from templates.

If this option is disabled, you will need to start the precess from scratch

Additionally, you can read/manipulate any element and their attributes using the wizards provided.