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By Administrator , 17 March, 2026

fix: Add missing error code validation in CGXDLMS::GetHdlcFrame.

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

fix: Add missing error code validation in CGXDLMSClient::ReleaseRequest

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

fix: Add missing error code validation in CGXDLMSClient::SNRMRequest

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

fix: warning removed from CGXDLMSImageTransfer::Invoke.

Project
gurux.dlms.cpp
Status
Closed (fixed)
Priority
Normal
Category
Support request
By mightyChamp , 13 March, 2026

com_read() returns OK(0) but Instantaneous Profile response contains empty values

Forums
Gurux DLMS for ANSI C

We are reading Instantaneous Profile data from a DLMS meter using the Gurux library.

Normally the read works correctly and all values are returned as expected. However, sometimes we receive the following response:

By MetersAdv , 11 March, 2026

Clou Meter CL730D22L connection

Forums
DLMSDirector

I am trying to connect to Clou Meter CL730D22L using RS485 cable and Optical prop cable to this meter but every time I got no response from the meter, can you help on what is the best way to connect to this meter
I have used 9600 8None1 to connect as default but no response

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

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