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ILNAS-EN IEC 62056-5-3:2023 Edition 11/2023
Electricity metering data exchange - The DLMS®/COSEM suite - Part 5-3: DLMS®/COSEM application layer
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Abstract

This part of IEC 62056 specifies the DLMS®/COSEM application layer in terms of structure, services and protocols for DLMS®/COSEM clients and servers, and defines rules to specify the DLMS®/COSEM communication profiles. It defines services for establishing and releasing application associations, and data communication services for accessing the methods and attributes of COSEM interface objects, defined in IEC 62056-6-2:2021 using either logical name (LN) or short name (SN) referencing. Annex A (normative) defines how to use the COSEM application layer in various communication profiles. It specifies how various communication profiles can be constructed for exchanging data with metering equipment using the COSEM interface model, and what are the necessary elements to specify in each communication profile. The actual, media-specific communication profiles are specified in separate parts of the IEC 62056 series. Annex B (normative) specifies the SMS short wrapper. Annex C (normative) specifies the gateway protocol. Annex D, Annex E and Annex F (informative) include encoding examples for APDUs. Annex G (normative) provides NSA Suite B elliptic curves and domain parameters. Annex H (informative) provides an example of an End entity signature certificate using P-256 signed with P-256. Annex I (normative) specifies the use of key agreement schemes in DLMS®/COSEM. Annex J (informative) provides examples of exchanging protected xDLMS APDUs between a third party and a server. Annex K (informative) lists the main technical changes in this edition of the standard.

Status

Standard - Active

Origin

Technical Committee :
CLC/TC 13 : Electrical energy measurement and control

Implementation

start of the vote on the project    03/12/2021   date of ratification (dor)    02/11/2023
end of the vote on the project    25/02/2022   date of anouncement (doa)    02/02/2024
start of the vote on the final project    28/04/2023   date of publication (dop)    02/08/2024
end of the vote on the final project    09/06/2023   date of withdrawal (dow)    02/11/2026


Publication Official Journal
of the Grand-Duchy of Luxembourg
24/05/2024
Reference Mémorial A N° 201

Relations

Relations to older standards
ILNAS-EN 62056-5-3:2017

Relations to international standards
IEC 62056-5-3 ED4 
IEC 62056-5-3:2023 

International Classification for Standards (ICS codes) :

17.220 : Electricity. Magnetism. Electrical and magnetic measurements
35.110 : Networking
91.140.50 : Electricity supply systems

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