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By frd52 , 7 March, 2026

Gurux C library DLMS book edition support

Forums
Gurux DLMS for ANSI C

Hi everyone;
I am new with DLMS.I have a question about gurux c library.Which DLMS book editions does the Gurux C library support?

By Juan Tobon , 2 March, 2026

Help with connection and read with landis+gyr e650 + CU-E22 using python

Forums
DLMSDirector

Hi, this is Juan From colombia, for the last days i`ve been working with the landis+gyr e 650 Model:ZMD402 & the CU-E22.
I`m gonna talk you about what i wanna achieve, and maybe you could help me with that.
Ok, from the last days i've been trying to connec the landis from the CU to python, i already know which port i have to use and all the security information.
I try with wrapper and HDLC but i dont manage to make it work.
Usually the device open the tcp and arrq, after that he makes the request from tx-AARQ with the information bytes.

By edgaras , 25 February, 2026

Preestablished connection

Forums
DLMSDirector

We tried to follow your description about the pre-established connection:
https://www.gurux.fi/comment/30809#comment-30809

As we understand it, in this mode the meter should continuously send data to the client, and the client should just listen without establishing the connection itself.

A few things are unclear:

By we_trackso , 22 February, 2026

RJ11 to RS232 Pin out SECURE Premier 300

Forums
Gurux.DLMS

Hello everyone,
Does anyone have a verified working wiring diagram or screenshot for the RJ11 to RS232 pinout on the Secure Premier 300 meter?
I’m specifically looking for a confirmed setup that has been tested successfully. Any reference images or pin mapping details would be greatly appreciated

By kbhari027 , 20 February, 2026

GENUS sugam 3 PH bidirectional

Forums
DLMSDirector

HI any one with connecting experience of GENUS SUGAM 3P4W bi directional with DLMS??. can guide me??

By AnujNayak , 19 February, 2026

Electricity smart Meter DLMS firmware stack

Forums
Gurux.DLMS

Dear Gurux Team,

I hope you are doing well.

We are currently working on the development of electricity meters and are interested in implementing a DLMS/COSEM stack in our Renesas Controller. We would like to understand whether Gurux provides a DLMS stack suitable for integration into meter firmware, along with details regarding licensing, commercial usage, and technical support.

Kindly share the relevant information and documentation to help us evaluate the solution.

Looking forward to your response.

By Administrator , 19 February, 2026

gurux.dlms.cpp 9.0.2602.1901

The following important issues are resolved in this version:
fix: CGXDateTime::ToUnixTime()

By Administrator , 19 February, 2026

fixe: CGXDateTime::ToUnixTime()

Project
gurux.dlms.cpp
Status
Closed (fixed)
Priority
Normal
Category
Bug report
By SMarcin , 17 February, 2026

Meter rejects reading multiple objects, but it conformance says it supports it.

Forums
Gurux.DLMS

Hello,
I'am trying to read multiple objects with 1 query via tcp/ip using python.

Running this code:

obj1 = GXDLMSRegister()
obj1.shortName = 39656
obj1.attributeIndex = 2

obj2 = GXDLMSRegister()
obj2.shortName = 39800
obj2.attributeIndex = 2

objects = [obj1, obj2]

packets = client.readList(objects)

for p in packets:
reply = send_and_receive(p)
client.getData(reply)

gives me an error:

By Zulu@eyabantup… , 16 February, 2026

Landisgyr meter

Forums
Gurux.DLMS

hi Am trying to connect the Gurux GXDLMS Director to the landisgyr meter and it has a CU-XE communication module. There are no Obis codes in the software, and it says failed to receive reply from device. can you help? I can only connect with the MAP110 from landisgyr but with Gurux is giving me problems.

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Latest Releases

  • Mon, 07/27/2026 - 12:37
    gurux.dlms.cpp 9.0.2607.2701
  • Thu, 07/23/2026 - 16:19
    gurux.dlms.java 4.0.96
  • Thu, 07/09/2026 - 14:34
    Gurux.DLMS.Python 1.0.201
  • Fri, 06/26/2026 - 16:32
    Gurux.Service 3.0.2606.2601
  • Wed, 06/24/2026 - 08:36
    Gurux.DLMS.Python 1.0.200

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  • gurux_dlms.GXDateTime.GXDateTime object Error in Python
  • T_APPL_DATA_LN_N1 subtest 3 fails on an LN-only server regardless of the response to a non-existing-object GET
  • Version mismatch between Gurux.DLMS 9.x and Gurux.Common/Gurux.Serial 8.x
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