Why IED Configuration Tools Must Evolve

IEC 61850 engineering is undergoing a major shift toward top-down engineering. In this approach, system functions, data models, dataflow, and configuration values are formally specified before any IED is selected. This evolution is driven by recent IEC publications and industry initiatives and is rapidly becoming the expected engineering baseline for digital substations.
 
At the heart of this transformation lies the IED Configuration Tool. It is no longer sufficient for an ICT to simply configure devices. Modern engineering workflows require ICTs to interpret formal system specifications and respond with structured, machine-processable documentation describing how an offered IED complies with that specification. IED suppliers who invest in supporting this model gain earlier involvement in projects, reduce engineering friction, and position their tools as future-ready components in IEC 61850 ecosystems.

What This Specification Delivers

Clear, Standard-Aligned Requirements

The specification defines a precise and practical scope: the interface between system specification tools and IED configuration tools. It formalizes how SSD and ISD files are interpreted and how suppliers must respond using process ICD or IID files. The document does not add new requirements beyond IEC 61850, but clarifies how existing standards must be applied in real engineering projects, with real SCL file examples.

Mandatory baseline capabilities include importing SSD or ISD files, mapping specified LNodes to IED logical nodes, and producing compliant process ICD or IID files using the appropriate SCL and 6-100 namespaces. These capabilities form the minimum entry level for participation in top-down engineering projects.

Beyond the baseline, the specification defines supplementary capabilities such as UUID-based traceability, physical allocation constraints, complex mapping scenarios, dataflow placeholder creation, value specification handling, and behavior description documentation. These features allow suppliers to clearly document how their IEDs fit within a system-level specification.

Why IED Suppliers Should Download the Full Document

A Common Language with Advanced Users

Top-down engineering creates a common, tool-based language between users and IED suppliers. For users, it enables faster validation and reduced ambiguity. For suppliers, it provides a structured way to document constraints, deviations, and capabilities without endless manual clarification cycles.

The document introduces the concept of user profiles, acknowledging that not all customers have the same expectations. A complete example Elia user profile is included, illustrating how supplementary requirements are combined in a real-world TSO context. This transparency allows suppliers to align tool capabilities with concrete customer needs.

This brochure only provides a high-level overview. The full specification contains detailed requirement descriptions, process diagrams, normative IEC references, requirements tables, and demo SCL files. Downloading the full document is the first step toward making your IED Configuration Tool a first-class citizen in future IEC 61850 engineering processes.

IEC61850 Engineering Process Common Vision

The Engineering Process Common Vision provides users with a shared view of IEC61850 engineering from the perspective of a number of different organisations. It provides stakeholders with a strong signal as a more flexible, efficient and standardised engineering process is adopted. 

Why this project

The common vision aims to become an industry-supported and standardised top-down engineering solution that removes private user- or vendor-specific engineering solutions, enabled through TR IEC61850-90-30 and TR IEC61850-7-6 ed2.

A number of leading organisations share this vision, as exemplified by the logos which are visible at the bottom of the statement. Their purpose is to encourage the development of required products (including new tools for specification, configuration, testing and simulation), avoiding the need for costly and time-consuming custom developments.

Click the ‘Full screen’ button on the bottom right of the image to see a bigger image, or click the following link: IEC61850 Engineering Process Common Vision.