IEC 61850-8-1-2020 PDF

Full title and description

IEC 61850-8-1:2011/AMD1:2020 — Communication networks and systems for power utility automation — Part 8-1: Specific communication service mapping (SCSM) — Mappings to MMS (ISO 9506-1 and ISO 9506-2) and to ISO/IEC 8802-3. This consolidated publication incorporates the second edition (2011) and Amendment 1 (2020) and defines how the Abstract Communication Service Interface (ACSI) is mapped to MMS and to ISO/IEC 8802-3 frames for use in substation and utility automation systems.

Abstract

This part of IEC 61850 specifies the Specific Communication Service Mapping (SCSM) to enable exchange of time‑critical and non‑time‑critical data over local‑area networks by mapping ACSI to MMS and to ISO/IEC 8802‑3 frames. The consolidated 2011 + A1:2020 edition adds support for gigabit Ethernet, link‑layer redundancy, extensions to object referencing and logging, new mappings for tracking services, and several GOOSE‑related evolutions. The publication is provided as a consolidated edition (no separate purchase of the amendment is required).

General information

• Status: Current (consolidated edition incorporating Amendment 1).
• Publication date: 21 February 2020 (Amendment 1 published; consolidated edition published 2020).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 33.200 (Telecontrol / Telemetering).
• Edition / version: Edition 2 (2011) with Amendment 1 (2020) — consolidated version often referenced as IEC 61850-8-1:2011+AMD1:2020 (Ed. 2.0/2.1 consolidated).
• Number of pages: 271 pages (consolidated bilingual PDF / typical consolidated edition page count).

Scope

Specifies the method to map IEC 61850 ACSI services onto MMS (ISO 9506) and onto ISO/IEC 8802‑3 frames so that protection, control, monitoring and engineering data can be exchanged across Ethernet‑based LANs used in substations and utility automation. For ACSI services not mapped to MMS the part provides additional protocol specifications. The scope includes requirements and message encodings required for reliable exchange of reports, commands, logs, tracking services, and GOOSE‑related behavior over Ethernet networks.

Key topics and requirements

• Definition of Specific Communication Service Mapping (SCSM) for ACSI-to-MMS and ACSI-to-ISO/IEC 8802‑3 frame mappings.
• Support for gigabit Ethernet and relevant link capabilities to meet modern LAN throughput requirements.
• Introduction/definition of link‑layer redundancy options to improve availability in substation networks.
• Extensions to objectReference length and AdditionalCause enumeration to support richer logging and object linking.
• Mapping and evolution of tracking services, plus a second mapping mode for objectReference when used with tracking or linking.
• GOOSE-related changes (simulation of GOOSE telegram, fixed‑length encoded GOOSE and related encoding adjustments).
• Clear guidelines for using ISO 9506 MMS services in utility automation contexts and for when additional protocols are required.

Typical use and users

Used by substation automation equipment manufacturers, utility engineering departments, system integrators, testing and certification laboratories, and software vendors implementing IEC 61850 communications. Typical applications include substation protection and control, SCADA interfacing, IED (Intelligent Electronic Device) communication, data modelling and engineering tools where standardized MMS and Ethernet mappings are required.

Related standards

Part of the IEC 61850 series. Closely related documents include IEC 61850-7-2 (ACSI definition), IEC 61850-7-1 (basic principles and models), IEC 61850-9-2 (Sampled Values mapping) and the precision time/profile work (IEC/IEEE 61850-9-3), as well as security and migration guidance such as IEC 62351 and IEC TR 61850-90-4. For consolidated context and related part references see the IEC product details.

Keywords

SCSM, MMS, ISO 9506, ISO/IEC 8802-3, ACSI, IEC 61850, substation automation, GOOSE, tracking services, link redundancy, objectReference, sampled values (related).

FAQ

Q: What is this standard?

A: It is Part 8‑1 of the IEC 61850 family that gives the Specific Communication Service Mapping (SCSM) — i.e., how the abstract IEC 61850 services (ACSI) are mapped to MMS and to Ethernet (ISO/IEC 8802‑3) for utility automation.

Q: What does it cover?

A: It covers message mappings, encodings and protocol usage required to exchange time‑critical and non‑time‑critical data (reports, commands, logs, tracking, GOOSE behaviors) between devices and systems over Ethernet‑based LANs. The 2020 amendment adds support for gigabit Ethernet, link redundancy, extensions to object references and other evolutions.

Q: Who typically uses it?

A: Manufacturers of IEDs and substation equipment, utilities and grid operators, system integrators, test houses and certification bodies, and software tool vendors implementing IEC 61850 communications and engineering workflows.

Q: Is it current or superseded?

A: The consolidated edition IEC 61850-8-1:2011+AMD1:2020 is the current consolidated publication (Amendment 1 published 21 Feb 2020); its stability date is noted by IEC through 2026 for planning purposes. Users should check IEC or their national standards body for any later amendments or revisions.

Q: Is it part of a series?

A: Yes — it is one part of the IEC 61850 series for communication networks and systems for power utility automation; other parts cover data models, sampled values, time profiles, testing and security.

Q: What are the key keywords?

A: SCSM, MMS, ISO 9506, Ethernet (ISO/IEC 8802‑3), ACSI, GOOSE, sampled values, substation automation, link redundancy, objectReference.