IEC 61850-9-2:2011 PDF

Communication networks and systems for power utility automation - Part 9-2: Specific communication service mapping (SCSM) - Sampled values over ISO/IEC 8802-3

First page of standard IEC 61850-9-2:2011

Open preview (PDF)

Title (English):

IEC 61850-9-2:2011

Communication networks and systems for power utility automation - Part 9-2: Specific communication service mapping (SCSM) - Sampled values over ISO/IEC 8802-3

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 34
Publication date:: February 12, 2020
Edition:: IEC IS 61850 edition 2 version 1
ICS:: 33.200

Delivery type:

Full version35 €Read online 24h10 €Read online 72h15 €

Document language:

enru

Delivery time:Immediate download

Price:35 €

Description (English):

IEC 61850-9-2:2011 defines the specific communication service mapping for the transmission of sampled values according to the abstract specification in IEC 61850-7-2. The mapping is that of the abstract model on a mixed stack using direct access to an ISO/IEC 8802-3 link for the transmission of the samples in combination with IEC 61850-8-1. Main changes with respect to the first edition are: - addition of an optional link redundancy layer; - redefinition of "reserved" fields in link layer; - evolution of USVCB and MSVCB components; - evolution of encoding for the transmission of the sampled value buffer.

Technical details

Technical committee: TC 57 - Power systems management and associated information exchange
SKU: IEC 61850-9-2:2011

Abstract

Overview

IEC 61850-9-2:2011 (with Amendment 1, 2020) defines the Specific Communication Service Mapping (SCSM) for the transmission of sampled values over ISO/IEC 8802-3 (Ethernet). It maps the abstract sampled-value model from IEC 61850-7-2 onto a mixed protocol stack that uses direct access to the Ethernet link for high-rate sample streams, combined with selected IEC 61850-8-1 services (MMS) for control and configuration. The edition update adds synchronization references, link redundancy options and clarifications for backward/forward compatibility.

Key topics and requirements

Sampled values mapping: Defines how the IEC 61850-7-2 sampled-value model (SV) is encoded and carried on Ethernet frames for process-bus implementations.
Mixed stack approach: Uses direct ISO/IEC 8802-3 link access for SV streams while referencing IEC 61850-8-1 for access to SV control blocks and configuration where required.
Control blocks evolution: Updates to MSVCB (multicast sampled value control block) and deprecation/changes regarding USVCB (unicast sampled value control block) in the amendment.
Link redundancy: Adds an optional link redundancy layer (e.g., PRP/HSR style topologies) to improve availability of sampled-value streams.
Encoding and presentation: Evolutions to the encoding of the sampled value buffer and ASN.1/BER presentation rules are described (Annex A includes frame format and BER guidance).
Synchronization: Clause added in the amendment referencing IEC 61588 (PTP) and IEC/IEEE 61850-9-3 for SV synchronization requirements.
Conformance and SCL: Requirements for conformance statements and Substation Configuration Language (SCL) elements for SV are included to enable interoperability.
Compatibility guidance: Annex C discusses backward/forward compatibility issues between revisions.

Practical applications - who uses this standard

Utility engineers and substation designers implementing a digital process bus to replace hard-wired CT/VT outputs.
Manufacturers of merging units, digital sensors, protection relays, bay controllers and meters needing interoperability for sampled-value streams.
System integrators and test labs performing interoperability testing and conformance verification for IEC 61850-based substations.
Network architects planning redundant Ethernet topologies and time-synchronization strategies for protection and measurement applications.

Related standards

IEC 61850-7-2 (sampled-value abstract model)
IEC 61850-8-1 (MMS services and configuration)
ISO/IEC 8802-3 (Ethernet link)
IEC 61588 (Precision Time Protocol / PTP)
IEC/IEEE 61850-9-3 (SV synchronization profile)
Substation Configuration Language (SCL) concepts within IEC 61850-6

IEC 61850-9-2 is essential for anyone designing, implementing or certifying high-speed sampled-value communications on Ethernet for modern digital substations and process-bus architectures.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and requirements

Sampled values mapping: Defines how the IEC 61850-7-2 sampled-value model (SV) is encoded and carried on Ethernet frames for process-bus implementations.
Mixed stack approach: Uses direct ISO/IEC 8802-3 link access for SV streams while referencing IEC 61850-8-1 for access to SV control blocks and configuration where required.
Control blocks evolution: Updates to MSVCB (multicast sampled value control block) and deprecation/changes regarding USVCB (unicast sampled value control block) in the amendment.
Link redundancy: Adds an optional link redundancy layer (e.g., PRP/HSR style topologies) to improve availability of sampled-value streams.
Encoding and presentation: Evolutions to the encoding of the sampled value buffer and ASN.1/BER presentation rules are described (Annex A includes frame format and BER guidance).
Synchronization: Clause added in the amendment referencing IEC 61588 (PTP) and IEC/IEEE 61850-9-3 for SV synchronization requirements.
Conformance and SCL: Requirements for conformance statements and Substation Configuration Language (SCL) elements for SV are included to enable interoperability.
Compatibility guidance: Annex C discusses backward/forward compatibility issues between revisions.

Practical applications - who uses this standard

Utility engineers and substation designers implementing a digital process bus to replace hard-wired CT/VT outputs.
Manufacturers of merging units, digital sensors, protection relays, bay controllers and meters needing interoperability for sampled-value streams.
System integrators and test labs performing interoperability testing and conformance verification for IEC 61850-based substations.
Network architects planning redundant Ethernet topologies and time-synchronization strategies for protection and measurement applications.

Related standards

IEC 61850-7-2 (sampled-value abstract model)
IEC 61850-8-1 (MMS services and configuration)
ISO/IEC 8802-3 (Ethernet link)
IEC 61588 (Precision Time Protocol / PTP)
IEC/IEEE 61850-9-3 (SV synchronization profile)
Substation Configuration Language (SCL) concepts within IEC 61850-6

IEC 61850-9-2 is essential for anyone designing, implementing or certifying high-speed sampled-value communications on Ethernet for modern digital substations and process-bus architectures.

IEC 61850-9-2:2011 PDF

Technical details

Abstract

Overview

Key topics and requirements

Practical applications - who uses this standard

Related standards

Related standards

Abstract

Overview

Key topics and requirements

Practical applications - who uses this standard

Related standards

Related standards

Communication networks and systems for power utility automation - Part 8-1: Specific communication service ma…

Communication networks and systems for power utility automation - Part 7-2: Basic information and communicati…

Communication networks and systems in substations - Part 8-1: Specific Communication Service Mapping (SCSM) -…

Precision Clock Synchronization Protocol for Networked Measurement and Control Systems

Corrigendum 1 - Amendment 1 - Communication networks and systems for power utility automation - Part 7-1: Bas…

Communication networks and systems for power utility automation - Part 6: Configuration description language…

Amendment 1 - Communication networks and systems for power utility automation - Part 9-2: Specific communicat…