IEC 62056-3-1:2021
Electricity metering data exchange - The DLMS/COSEM suite - Part 3-1: Use of local area networks on twisted pair with carrier signalling
Electricity metering data exchange - The DLMS/COSEM suite - Part 3-1: Use of local area networks on twisted pair with carrier signalling
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 385
- Дата публикации:
- 7 июля 2021 г.
- Издание:
- IEC IS 62056 edition 2 version 1
- ICS:
- 17.220.20
IEC 62056-3-1:2021 describes two sets of profiles: the first set of profiles allows a bidirectional communication between a client and a server. This set of profiles is made of three profiles allowing local bus data exchange with stations either energized or not. For non-energized stations, the bus supplies energy for data exchange. Three different profiles are supported: • base profile: this three-layer profile provides remote communication services; NOTE 1 This first profile was published in IEC 61142:1993 and became known as the Euridis standard. • profile with DLMS: this profile allows using DLMS services as specified in IEC 61334 4 41; NOTE 2 This second profile was published in IEC 62056-31:1999. • profile with DLMS/COSEM: this profile allows using the DLMS/COSEM Application layer and the COSEM object model as specified in IEC 62056 5 3 and in IEC 62056 6 2 respectively. The three profiles use the same physical layer and they are fully compatible, meaning that devices implementing any of these profiles can be operated on the same bus. The transmission medium is twisted pair using carrier signalling and it is known as the Euridis Bus. The second set of profiles allows unidirectional communication between a given Energy Metering device and a Customer Energy Management System. This second set is made up of three profiles. Subclause 4.2.1 to Clause 8 included specify the bidirectional communication using twisted pair signalling and Clause 9 to 9.5 the unidirectional communication using twisted pair signalling. This second edition cancels and replaces the first edition of IEC 62056-3-1, issued in 2013, and constitutes a technical revision. The main technical changes with regard to the previous edition are as follows: • addition of a profile which makes use of the IEC 62056 DLMS/COSEM Application layer and COSEM object model; • review of the data link layer which is split into two parts: – a pure Data Link layer; – a "Support Manager" entity managing the communication media; • ability to negotiate the communication speed, bringing baud rate up to 9 600 bauds.
Abstract
Overview
IEC 62056-3-1:2021 specifies the use of local area networks on twisted pair with carrier signalling (the Euridis Bus) for electricity metering data exchange as part of the DLMS/COSEM suite. The standard defines two sets of profiles:
- A bidirectional set of three compatible profiles (base/Euridis, DLMS, and DLMS/COSEM) enabling client–server exchanges on the same physical bus.
- A unidirectional set of three profiles for one-way data transmission from energy metering devices to a Customer Energy Management System (CEMS/TIC).
This second edition (2021) is a technical revision of the 2013 edition and introduces a DLMS/COSEM profile, a split Data Link layer with a Support Manager entity, and negotiated communication speeds up to 9 600 bauds.
Key topics and technical requirements
- Profiles & Compatibility
- Three bidirectional profiles: base profile (Euridis), profile with DLMS, and profile with DLMS/COSEM. All use the same physical layer and interoperate on the same bus.
- Three unidirectional profiles for TIC (time-integrated consumption) / CEMS reporting.
- Layered architecture
- Physical layer: twisted pair carrier signalling (Euridis Bus), bus wiring and hardware specifications (magnetic plug, energy supply plug).
- Data Link: split into a pure Data Link layer and a Support Manager that manages the communication medium.
- Transport & Application: DLMS services and the COSEM object model (per IEC 62056-5-3 and IEC 62056-6-2) for the DLMS/COSEM profile.
- Operational behaviors
- Procedures for energized and non-energized stations (bus may supply energy for non-energized meters).
- Timing, CRC, random-number mechanisms (authentication/forgotten-station handling), error handling and state transitions for Primary/Secondary stations.
- Clauses of interest
- Bidirectional: Subclauses 4.2.1 – Clause 8.
- Unidirectional: Clause 9 – 9.5.
Applications and users
IEC 62056-3-1:2021 is used where legacy or low-cost local meter networks on twisted pair carrier are required, including:
- Meter manufacturers implementing Euridis/DLMS/COSEM profiles.
- Electric utilities and grid operators deploying local bus networks for meter reading, programming and alarms.
- CEMS and BEMS integrators receiving unidirectional TIC data.
- System integrators and test labs validating conformance (physical, data link, application behaviors).
- Standards bodies and procurement teams specifying interoperable meter networks.
Keywords: IEC 62056-3-1:2021, DLMS/COSEM, Euridis Bus, twisted pair carrier signalling, electricity metering data exchange, local area networks, DLMS, COSEM, TIC, CEMS.
Related standards
- IEC 61142:1993 (Euridis legacy)
- IEC 62056-31:1999 (historic DLMS profile)
- IEC 61334-4-41 (DLMS services)
- IEC 62056-5-3 and IEC 62056-6-2 (DLMS/COSEM application layer & object model)
Технические детали
- Технический комитет
- TC 13 - Electrical energy measurement and control
- SKU
- IEC 62056-3-1:2021
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