DLMS - Device Language Message Specification

What is the DLMS protocol?

DLMS — Device Language Message Specification

DLMS/ COSEM (or IEC 62056) is the main glob­al stan­dard for smart ener­gy meter­ing, con­trol and man­age­ment. It includes spec­i­fi­ca­tions for media-spe­cif­ic com­mu­ni­ca­tion pro­files, an object-ori­ent­ed data mod­el and an appli­ca­tion lay­er protocol.

  • DLMS/ COSEM smart meter­ing pro­to­col is not spe­cif­ic to elec­tric­i­ty meter­ing and can also be used for oth­er util­i­ties such as gas, water and heat.
  • The suite of stan­dards is devel­oped and main­tained by the DLMS User Asso­ci­a­tion (DLMS UA) and has been adopt­ed by the Inter­na­tion­al Elec­trotech­ni­cal Com­mis­sion (IEC) into the IEC 62056 series of standards.

DLMS/ COSEM con­sists of three main parts:

  • COSEM (Com­pan­ion Spec­i­fi­ca­tion for Ener­gy Meter­ing) describes the gen­er­al object mod­el and can be used for all kinds of applications.
  • OBIS (Object Iden­ti­fi­ca­tion Sys­tem) is the nam­ing sys­tem of the objects.
  • DLMS (Device Lan­guage Mes­sage Spec­i­fi­ca­tion) is the appli­ca­tion lay­er pro­to­col that is used to trans­form the data into mes­sages.

 

 

all entries sort­ed aplhabetically 

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Any ques­tions about this?
Ask us!

    I have read and accept the Pri­va­cy Pol­i­cy*

    Communication Protocols

    IEC 60870–5 is a pro­to­col stan­dard for tele­con­trol, telepro­tec­tion, and oth­er telecom­mu­ni­ca­tion func­tions for elec­tric pow­er systems.

    IEC 60870–5‑104 (short IEC104) is a com­pan­ion stan­dard defin­ing how to extend the IEC 60870–5‑101 pro­to­col to gain net­work access using stan­dard trans­port profiles.

    DLMS/COSEM (or IEC 62056) is the main glob­al stan­dard for smart ener­gy meter­ing, con­trol and man­age­ment. It includes spec­i­fi­ca­tions for media-spe­cif­ic com­mu­ni­ca­tion pro­files, an object-ori­ent­ed data mod­el and an appli­ca­tion lay­er protocol.

    Mod­bus is a com­mu­ni­ca­tions pro­to­col based on master/slave (RTU) or client/server (TCP/IP) archi­tec­tures that can oper­ate on the 1st, 2nd, 7th lev­el of the OSI Model.

    Orig­i­nal­ly designed in 1979 by Mod­i­con for its range of PLCs, it is now a de fac­to stan­dard com­mu­ni­ca­tions pro­to­col in the indus­try, becom­ming the most wide­ly avail­able pro­to­col for the con­nec­tion of indus­tri­al elec­tron­ic devices.

    Dis­trib­uted Net­work Pro­to­col 3 (DNP3) is a set of com­mu­ni­ca­tions pro­to­cols used between com­po­nents for automa­tion sys­tems in elec­tric, indus­tri­al and water sectors.

    It is a key pro­to­col in SCADA sys­tems, where it is pri­mar­i­ly used for com­mu­ni­ca­tions between a mas­ter sta­tion and RTUs or IEDs.

    ICCP (Inter-Con­trol Cen­ter Com­mu­ni­ca­tions Pro­to­col) is a stan­dard pro­to­col for com­mu­ni­ca­tions between con­trol cen­ters, which is part of the IEC 60870–6 stan­dard under the name of TASE.2 Tele­con­trol Appli­ca­tion Ser­vice Ele­ment 2.

    It is being used around the world to exchange data over wide area net­works (WANs) between grid oper­a­tors, util­i­ties, vir­tu­al pow­er plants, region­al con­trol cen­ters and oth­er generators.

    PROFIBUS (Process Field Bus) is an open stan­dard for field­bus com­mu­ni­ca­tions in indus­tri­al automa­tion sys­tems that was first pro­mot­ed in Ger­many in 1989.

    The now most com­mon­ly found “Profibus DP” pro­vides sim­ple com­mu­ni­ca­tions between Profibus mas­ters and their remote I/O slaves. 

    DLMS & iGrid

    We have col­lect­ed, con­vert­ed and trans­ferred data using the DLMS pro­to­col in projects all over the world with many dif­fer­ent meters. All of our sys­tems are able to com­mu­ni­cate with and con­vert the pro­to­col accord­ing to project needs.

    The Slimmest Gateway

    The iGWlite comes with 1 Eth­er­net, 1 RS485/RS422 and an option­al RS-232 port (cop­per or fiber) or a 2G/3G/4G mode tak­ing lit­tle space on a DIN-Rail, but still employ­ing the full iGrid pro­to­col stack.

    iRTU – With I/Os for Direct Data Acquisition 

    Com­pact and scal­able bay con­troller which can act as IEC 61850 client or serv­er, fea­tur­ing con­fig­urable I/O boards for direct data acqui­si­tion, high-pre­ci­sion time­stamp­ing and an option­al Eth­er­net switch for addi­tion­al Eth­er­net ports.

    iGW‑S Substation Gateway

    Pow­er­ful and reli­able sub­sta­tion gate­way, able to run either in stand­alone or redun­dant modes, with an embed­ded Eth­er­net switch (4 ports) and IEC 61850 client and serv­er capabilities.

    iGrid Solutions and Applications

    Automation with IEC 61850 

    The IEC 61850 stan­dard is enabling new opor­tu­ni­ties for ven­dor inter­op­er­abil­i­ty and advanced sub­sta­tion automa­tion. Find out how you can take advan­tage of IEC 61850 with easy-to-use and adapt­able solu­tions for a sim­ple migra­tion or retrofit.

    HV Substation Automation

    Pow­er­ful sub­sta­tion automa­tion sys­tems often han­dle numer­ous com­mu­ni­ca­tion pro­to­cols and media with­in one net­work, which can result in expen­sive and com­plex projects.  Avoid these prob­lems with inter­op­er­a­ble tech­nol­o­gy and smart con­fig­u­ra­tion tools.

    MV Distribution Grid Automation

    It is often dif­fi­cult to find the exact solu­tion you need in a MV appli­ca­tion, lead­ing to high­er costs than nec­es­sary. With our scal­able and adapt­able solu­tions you will be able to only pay for what you real­ly need, with­out com­prim­is­ing on qual­i­ty or security.

    Photovoltaic Power Station

    Using an open and scal­able SCADA sys­tem to mon­i­tor and con­trol a PV plant comes with many ben­e­fits on sev­er­al lev­els. Find out how advanced com­mu­ni­ca­tion tech­nol­o­gy affects PV oper­a­tion, main­te­nance, sys­tem design, invest­ment secu­ri­ty, profits…

    Protocol Conversion

    As com­mu­ni­ca­tion net­works grow in com­plex­i­ty, “plug and play” promis­es become hard­er to keep. Inter­op­er­a­ble pro­to­col con­vert­ers and soft­ware solu­tions with state-of-the-art capa­bil­i­ties and funci­tonal­i­ties can be the bridge to all the func­tions and flex­i­bil­i­ty your net­work needs.

    Generation Dispatch Control Center

    With a gen­er­a­tion dis­patch enter you can auto­mat­i­cal­ly con­trol the gen­er­a­tion of all pow­er plants and make direct bids for ancil­lary ser­vices on one plat­form. Check out the most effi­cient com­mu­ni­ca­tion path between gen­er­a­tion sites, grid oper­a­tors and the pow­er market.

    Smart Metering

    A sin­gle device that col­lects, process­es, trans­fers smart meter data and load curves from sev­er­al meters in dif­fer­ent pro­to­cols via ser­i­al or Eth­er­net, whilst pro­vid­ing advanced automa­tion func­tions? Adapt­able designs and a full com­mu­ni­ca­tion pro­to­col suite make it possible. 

     

    Switchgear & Transformers

    Some­times you have pre­ferred gear for a project or it has already been installed, but it is lack­ing the com­mu­ni­ca­tion capa­bil­i­ties to pro­vide the automa­tion func­tions you are look­ing for. With our soft­ware core iGComms any device can be as smart as you want it to be.