IEC 61850-7-3-2020 PDF

Full title and description

Communication networks and systems for power utility automation — Part 7‑3: Basic communication structure — Common data classes. Consolidated edition incorporating IEC 61850‑7‑3:2010 and Amendment 1 (2020), which defines constructed attribute classes and standardized common data classes (CDCs) used to model measurements, status, control, settings and related information in substations and related power‑system domains.

Abstract

IEC 61850‑7‑3 specifies common data classes (CDCs) and associated attribute types for substation and feeder device modelling to ensure consistent representation of status, measured values, controls, settings and other object data across devices and systems. The 2020 amendment adds new CDCs for statistical and historical data, clarifications and corrections, presence‑condition redesign and selected security‑related extensions; the consolidated edition is intended for use across the IEC 61850 family and Smart Grid applications.

General information

• Status: Published (consolidated edition incorporating Amendment 1:2020).
• Publication date: Base edition published 16 December 2010; Amendment 1 published in 2020 (effective/published dates in 2020 — consolidated/Ed.2.1 published 2020).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 33.200 — Telecontrol / Telemetering (power systems management and associated information exchange).
• Edition / version: Ed. 2 consolidated with Amendment 1 (commonly referenced as IEC 61850‑7‑3:2010 + AMD1:2020 or Ed.2.1, 2020).
• Number of pages: Varies by publisher/format — common listings show approximately 146 pages for the Ed.2.1 consolidated PDF and other listings up to ~182 pages for the base consolidated publication (different vendors/formats produce slightly different page counts).

Scope

Defines the abstract data model elements called common data classes (CDCs) and the constructed attribute classes used to represent device information in substation automation and related power system domains. The standard covers status information, measured values (simple and complex), control and command objects, settings and analogue settings, enumerated attribute semantics, and extensions for historical/statistical data and selected security‑related attributes. It is intended to provide a consistent object model for device manufacturers, system integrators and tool vendors implementing IEC 61850‑based systems.

Key topics and requirements

• Definition and normative specification of Common Data Classes (CDCs) such as SPS, DPS, MV, CMV, INS, ENS, ACT, ACD and others used to model device data.
• Constructed attribute classes and attribute type definitions that determine the structure and semantics of data objects.
• Extensions and new CDCs for representation of historical and statistical data introduced by the 2020 amendment.
• Clarifications, corrections and semantic refinements to improve interoperability across implementations and to maintain backward compatibility.
• Enumerated types and tables for explicit semantics of attributes and notes on presence‑conditions and security‑related attributes.
• Normative requirements that enable consistent modelling for SCL (Substation Configuration Language) files, MMS mappings and other parts of the IEC 61850 ecosystem.

Typical use and users

Used by substation automation and protection engineers, utility system architects, device manufacturers, protocol/tool vendors, system integrators, testing and certification bodies, and standards developers to design, implement and verify IEC 61850‑based device models and communication: for example to ensure consistent representation of measurements, statuses, controls and historical/statistical data across devices and systems. The standard is core to Smart Grid and substation information modelling.

Related standards

Part of the IEC 61850 series; commonly referenced standards include IEC 61850‑7‑2 (ACSI / abstract communication service interface), IEC 61850‑6 (SCL — Substation Configuration Language), IEC 61850‑8‑1 and IEC 61850‑9‑2 (mappings and process‑bus communications), IEC 61850‑3 (general requirements / environmental/hardware), and complementary security standards such as IEC 62351 (power systems data and communications security). The 7‑3 CDC definitions are widely reused by other IEC 61850 object models and domain standards.

Keywords

IEC 61850, common data classes (CDC), substation automation, constructed attribute classes, SCL, MMS, measured value (MV/CMV), status (SPS/DPS), control objects, historical/statistical data, Smart Grid.

FAQ

Q: What is this standard?

A: IEC 61850‑7‑3 specifies the Common Data Classes (CDCs) and constructed attribute classes used for modelling device data in substation and related power‑system applications; the 2020 consolidated edition incorporates Amendment 1 (2020) to the 2010 base edition.

Q: What does it cover?

A: It covers normative definitions of CDCs and attribute types for status, measurements, controls, settings and related data, plus amendments adding CDCs and clarifications for historical/statistical data and selected security extensions.

Q: Who typically uses it?

A: Utility engineers, protection and control vendors, system integrators, tool and software vendors, testing/certification bodies and standards authors who implement or verify IEC 61850 device models and communications.

Q: Is it current or superseded?

A: The consolidated edition (IEC 61850‑7‑3:2010 + AMD1:2020) is the current edition incorporating the 2020 amendment; the IEC webstore lists the base publication as 2010 with the 2020 amendment incorporated in the consolidated release and a stability date noted by IEC. Users should check IEC or national adopter notices for any later amendments or revisions beyond 2020.

Q: Is it part of a series?

A: Yes — it is Part 7‑3 of the IEC 61850 series (Communication networks and systems for power utility automation) and is intended to be used in conjunction with other IEC 61850 parts (for example 7‑2, 6, 8‑1, 9‑2, 3 and related security standards such as IEC 62351).

Q: What are the key keywords?

A: Common Data Classes (CDC), attribute classes, IEC 61850, substation automation, SCL, MMS, measured value, status, control, historical data.