IEC TS 61850-7-7-2018 amd1-2023 cor1-2025 PDF

Full title and description

IEC TS 61850-7-7:2018/AMD1:2023/COR1:2025 — Communication networks and systems for power utility automation — Part 7-7: Machine-processable format of IEC 61850‑related data models for tools. This technical specification defines an XML-based, machine‑processable representation of the IEC 61850 code components (logical nodes, common data classes, structured data attributes, enumerations and related tables) so they can be consumed by engineering and modelling tools.

Abstract

This publication is the base Technical Specification IEC TS 61850‑7‑7 (edition 1.0, 2018) as amended by Amendment 1 (2023) and corrected by Corrigendum 1 (2025). It specifies the normative XML/schema formats and the code‑component files used to exchange IEC 61850 data‑model definitions between tool vendors and system integrators, and it includes a corrigendum update to the published code‑component archive used for interoperability.

General information

• Status: Published / Current (consolidated CSV available).
• Publication date: Original TS published 13 March 2018; Amendment 1 published 16 January 2023; Corrigendum 1 published 23 May 2025.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 33.200 (Telecontrol / Telemetering).
• Edition / version: IEC TS 61850‑7‑7 Ed.1.0 (2018); Amendment 1 (2023); Corrigendum 1 (2025); consolidated CSV (IEC TS 61850‑7‑7:2018+AMD1:2023 CSV, ed.1.1).
• Number of pages: Base TS: 69 pages (2018); Amendment 1: ~12 pages (2023); Corrigendum 1: ~3 pages (2025); consolidated CSV editions reported at ~122 pages for the 2018+AMD1 consolidated copy.

Scope

Specifies a machine‑processable (XML) format for the code components of IEC 61850 data models so that logical node definitions, common data classes, attribute structures and enumerations can be exchanged and imported by tools. The document’s scope is limited to the publication of the XML format, the normative schemas and the code‑component artefacts used for tool interoperability; it is not a functional substation configuration standard itself. The corrigendum updates one or more code‑component files used by implementers to ensure consistent tool behaviour.

Key topics and requirements

• Normative XML schema(s) and namespace definitions to represent IEC 61850 code components (logical nodes, CDCs, structured data attributes, enumerations).
• Structure and packaging of code‑component files (NSD/ZIP archives) for tool import/export and versioning requirements.
• Requirements for version identification, compatibility and interoperability of data‑model artefacts between tools and vendors.
• Guidance for mapping the abstract data‑model constructs into the machine‑readable schema and for generating consistent table entries used across IEC 61850 parts.
• Corrigendum correction to the published code component archive (replacement of specific code component ZIP to address interoperability TISSUES).

Typical use and users

Intended users are tool vendors (IED modelling tools, type‑definition editors, SCL/SCD tool authors), substation automation engineers, system integrators, testing and certification laboratories, and utilities involved in model exchange and engineering data management. Typical uses include creation, exchange and import of IEC 61850 code components into engineering tools, validation of data‑model consistency and interoperability testing between vendors.

Related standards

This part is one element of the IEC 61850 series. Closely related documents include IEC 61850‑6 (SCL — Configuration/description language), IEC 61850‑7‑2 and ‑7‑3 (abstract communication service interface / data attributes and common data classes), IEC 61850‑8‑1 (mapping to MMS) and IEC 61850‑9‑2 (sampled values) among other parts of the IEC 61850 family. Implementers typically use Part 7‑7 together with 61850‑6 (SCL) to achieve tool‑to‑tool interoperability.

Keywords

IEC 61850, TS 61850‑7‑7, machine‑processable format, XML schema, code components, logical nodes, common data classes, NSD, SCL, tool interoperability, amendment, corrigendum.

FAQ

Q: What is this standard?

A: IEC TS 61850‑7‑7 is a technical specification that defines an XML/machine‑readable format for the code components of IEC 61850 data models so tools can exchange and import logical node and data class definitions.

Q: What does it cover?

A: It covers the XML schemas, file/package structure and code‑component artefacts (tables and enumerations) needed to represent IEC 61850 data‑model elements in a machine‑processable way. The 2025 corrigendum updates specific code component files to address interoperability issues.

Q: Who typically uses it?

A: Tool vendors, system integrators, substation automation engineers, utilities, and test/certification bodies that build or consume IEC 61850 model definitions and require consistent, machine‑readable code components.

Q: Is it current or superseded?

A: The base TS (2018) is maintained by TC57 with Amendment 1 (2023) and Corrigendum 1 (2025) published; a consolidated CSV (2018+AMD1, with corrigendum content included in available consolidated copies) is provided for implementers. As of the latest published information the consolidated/corrected copies are current. Always check the IEC Webstore or your national standards body for the most recent status.

Q: Is it part of a series?

A: Yes — it is Part 7‑7 of the IEC 61850 series (Communication networks and systems for power utility automation) and is intended to be used in conjunction with other parts (notably Part 6 for SCL and the other Part 7 documents describing data models and services).

Q: What are the key keywords?

A: Machine‑processable, XML schema, code components, IEC 61850, data model, logical nodes, common data classes, SCL, interoperability, amendment, corrigendum.