IEC TR 61850-90-30-2025 PDF

Full title and description

Communication networks and systems for power utility automation - Part 90-30: IEC 61850 Function Modelling in SCL. This Technical Report defines extensions to the SCL (Substation/Process) sections to enable comprehensive, IED- and hardware-independent specification of IEC 61850-based power-system functions, their decomposition, classification, mapping and information flows.

Abstract

IEC TR 61850-90-30:2025 describes how to represent and model functions in SCL so they can be decomposed, classified and related to substations, processes, Logical Nodes and IEDs in a hardware-agnostic manner. The report covers function decomposition and classification, presentation of information flow between functions, relationships to application schemes (including distributed and protection schemes), the relation to Basic Application Profiles in IEC TR 61850-7-6 and the impact on the SCL Process Section and engineering process. It also introduces new SCL elements and IED-specific file variants (for example ISD and FSD) plus enhancements for engineering rights management and collaborative system-configuration workflows.

General information

• Status: Published / Valid.
• Publication date: 11 March 2025.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 33.200 (Telecontrol / Telemetering).
• Edition / version: Edition 1.0 (2025).
• Number of pages: Publisher listings vary (commonly reported as 184 pages; some catalogues list 188 pages).

Scope

The report defines SCL extensions and modelling rules that allow functions to be specified independently from particular IEDs or hardware, covering: decomposition of higher-level functions into sub-functions; classification and cataloguing of functions; mapping of functions to Logical Nodes and (Specification) IEDs; representation of information flows between functions; positioning of functions relative to application schemes, distributed functions and protection schemes; and guidance on engineering workflows and the effect on SCL Process and Substation sections. Backwards compatibility with existing SCL usage is a design objective. The document also proposes additional SCL elements to improve SSD content and introduces new IED-specific file variants (ISD, FSD) and collaboration/support mechanisms for system configuration (SCC, SED-related enhancements).

Key topics and requirements

• Function decomposition and modelling in SCL (vendor- and hardware-independent).
• Function classification and cataloguing to support reuse and unambiguous specification.
• Mapping and relationship of functions to Logical Nodes, IEDs and Specification IEDs (ISD/FSD concepts).
• Specification of information flows between functions in an implementation-agnostic way.
• Integration with Application Schemes, Distributed Functions and Protection Schemes; relation to Basic Application Profiles (IEC TR 61850-7-6).
• Extensions to SCL (additional SSD content and new file variants) while maintaining backwards compatibility.
• Engineering process guidance, including effects on the SCL Process Section and collaborative system-configuration workflows (SCC, engineering rights management).
• Interoperability and tool-support considerations for vendors, system integrators and utilities.

Typical use and users

IEC TR 61850-90-30:2025 is intended for power-utility automation engineers, substation/system designers, IED and tool vendors, system integrators, testing and certification bodies, and consultants who need a consistent, implementation-neutral way to specify and exchange function definitions and engineering artifacts using SCL. It is particularly relevant where multi-vendor integration, model-based engineering and collaborative system configuration are required.

Related standards

This Technical Report is part of the IEC 61850 family and is directly related to: IEC 61850-6 (system configuration and SCL), IEC TR 61850-7-6 (Basic Application Profiles / BAP), and other IEC 61850 parts that define Logical Node models and application semantics (for example the part‑7 series). It complements edition-2025 work on Part 7 models and Part 6 (SCL/UML/schema) to improve verification and tooling for SCL-based engineering.

Keywords

IEC 61850, SCL, Function Modelling, Substation, Logical Node, IED, ISD, FSD, SCC, SED, Basic Application Profile (BAP), Application Scheme, Distributed Function, Protection Scheme, system configuration, engineering collaboration.

FAQ

Q: What is this standard?

A: IEC TR 61850-90-30:2025 is a Technical Report in the IEC 61850 series that specifies how to model and represent power-system functions in SCL so they can be described independently of particular IEDs or hardware implementations, supporting model-based engineering and multi-vendor integration.

Q: What does it cover?

A: It covers extensions to the SCL Substation and Process sections to allow decomposition, classification and mapping of functions; representation of information flows; relationships to Logical Nodes, IEDs and application schemes; new IED-specific file variants and collaborative engineering workflow elements; and guidance to preserve backwards compatibility with existing SCL usage.

Q: Who typically uses it?

A: Utilities, substation and protection engineers, system integrators, IED and tool vendors, testing/certification laboratories and consultants involved in specification, engineering and integration of IEC 61850-based systems.

Q: Is it current or superseded?

A: It is a current Technical Report published in 2025 (Edition 1.0). Users should refer to the IEC webstore or their national standards body for any subsequent amendments or corrigenda and to confirm stability dates for organizational use.

Q: Is it part of a series?

A: Yes — it is part of the IEC 61850 family (Communication networks and systems for power utility automation) and is intended to interoperate with and complement other parts such as IEC 61850-6 and the part-7 series (Logical Node models), as well as related TRs like IEC TR 61850-7-6 (Basic Application Profiles).

Q: What are the key keywords?

A: SCL, function modelling, IEC 61850, Logical Node, IED, ISD, FSD, application schemes, basic application profile (BAP), system configuration, engineering collaboration.