DLMS/COSEM for smart metering: New developments


The Smart Metering Standardization Mandate M/441 was issued by the European Commission in March 2009 and accepted by the European ESOs – CEN, CENELEC and ETSI – in the same year. In June 2011, the Smart Metering Co-ordination Group completed the first part of its work issuing the Technical Report on Communication. This document specifies, among others, the functional reference architecture, the functional elements, the interfaces, the list of available and future standards, and high level use cases. It also covers aspects of data security, privacy, interoperability and the link to smart grids. The DLMS UA and its members play an important role in the work of the SM-CG and amending the existing standards as well as developing new ones in close cooperation with IEC TC13 WG14, CENELEC TC13 WG02 and CEN TC294.

This work benefits from the European OPEN meter research project, to which the DLMS UA also contributed. This project was running in parallel with the Mandate and closed on 30 June 2011. The project confirmed DLMS/COSEM as the leading standard for smart metering: supporting all energy types, all interfaces and all communication media.

The most immediate result is the specification of two new DLMS/ COSEM communication profiles for PLC OFDM Type 1 (aka PLC PRIME) and OFDM Type 2 (aka PLC G3), released for comments as draft CENELEC Technical Specifications: prCLC/TS 50567-1, 50567-2, 52056-84 and 52056-8-5.

Green Book Edition 9, published in December 2009, and Blue Book Edition 10, published in August 2010, have been transferred to IEC TC13 WG14 for global standardization. Edition 3 of the IEC 62056 DLMS/COSEM suite has passed the CDV stage and the new standards should be published early 2012.

To meet new requirements, the DLMS UA works on further extending the specification while maintaining stability and backwards compatibility. These new elements include management objects for the new PLC media, push operation, an extended data metering, a more efficient encoding scheme and many more. These will be included in the next edition of the DLMS UA Books, expected also early 2012, together with a new version of the Conformance Test Tool. DLMS/COSEM facilitates interoperability by using a single object-oriented data model, while its architecture is open to accommodate new messaging and data transport mechanisms.

The DLMS/COSEM user community grew by more than 20% last year and counts more than 200 members now. The number of certified meters types has grown even faster and approaches 200.

To support its Asian members, making up more than one-third of the membership, the DLMS UA participated at the Metering Asia event in May. It was a big success with many exhibitors and papers featuring DLMS/COSEM. The training seminar was attended by more than 30 people. The DLMS UA is also at Metering Europe 2011 in Amsterdam presenting its training seminar for the tenth time linked to this event.

Please contact us for more information or any question about the DLMS User Association at Chemin de Merdisel 9, CH-1242 Satigny- Geneva, Switzerland, by e-mail at dlms@dlms.com, or visit our website www.dlms.com.

Győző Kmethy, President
Paul Fuchs, General Secretary