DLMS: Device Language Message Specification

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DLMS/COSEM
The standard language for smart devices
Smart metering - and more generally, smart devices - need a globally accepted standard language that ensures interoperability, efficiency and security.
DLMS/COSEM provides just that.
DLMS - Who we are

Recently joined member

05.08.2019 PT. INDUSTRI TELEKOMUNIKASI INDONESIA (PERSERO) Indonesia more Information

Recently joined member

31.07.2019 Atlantica Digital S.p.A. Italy more Information

Recently joined member

02.07.2019 WUHAN RADARKING ELECTRONICS CORP. China more Information

Recently joined member

21.06.2019 exceeding solutions GmbH Germany more Information

Recently joined member

21.06.2019 Smart Meter Company Limited Myanmar more Information

Recently certified product

15.08.2019 Landis+Gyr E570 S2 ZxY405CW1Ux_V84.07.07 Cert.No. 2171 more Information

Recently certified product

15.08.2019 Landis+Gyr E570 S2 ZxY405CQUx_V83.07.07 Cert.No. 2170 more Information

Recently certified product

15.08.2019 N12U02 Cert.No. 2169 more Information

Recently certified product

12.08.2019 i220 Cert.No. 2168 more Information

Recently certified product

11.08.2019 MT308 Cert.No. 2167 more Information

2019-06-21

Save the date - DLMS User Association General meeting
The next DLMS General Meeting will take place at the close of the EUW exhibition, on the 14th November 2019, at 14.00 pm CET.
2019-02-05

DLMS UA General Meeting 5th November 2018
The Autumn 2018 General Meeting of the DLMS UA took place on 5th November 2018 in Vienna, Austria, linked to the EUW 2018 event.

2019-06-21

New Blue Book and Green Book
DLMS Publishes the latest version of the Coloured Books.
2019-04-03

LoRa Alliance™ and DLMS User Association to Bring Internet of Things to Utilities The LoRa Alliance™, the global association of companies backing the open LoRaWAN™ protocol for the Internet of Things (IoT) low-power wide-area networks (LPWANs), and the DLMS User Association (DLMS UA), a non-profit organization driving utilities and ...
2018-11-02

New version of CTT 3.1
Please ensure you are using the latest version, especially for certification purposes.
2017-04-21

CTT 3.1 released
It is a pleasure to inform you that CTT 3.1 has been released on 2017-03-15.

Contact
DLMS User Association
- Company registration number CHE-440.972.101
- Bahnhofstrasse 28
- CH-6302 Zug
- Switzerland
- - Email
    L_moc__smld--smld
© DLMS User Association
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DLMS User Association - Who we are
The DLMS UA is a non-profit organization founded in 1997 by leading utilities and meter manufacturers to develop and support a standard for smart meter data exchange.
Today, it is a global organization with 300+ members from all continents and 60+ countries involving utilities, meter manufacturers, system developers and integrators, and chip manufacturers.