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By Bhanu Prakash , 6 February, 2026

Issue with KWH Value Reading Using Gurux DLMS Library.

Forums
DLMSDirector

Hello Gurux Team,

We are currently facing an issue while reading meter data using the Gurux DLMS libraries.

In the field, some meters display six-digit KWH values (for example, 987654.32). However, when we fetch the value from the meter using GXDLMSDirector, we receive only five digits (for example, 87654.32).

The meter display shows the correct six-digit value, but the response appears to be skipping the first digit in the reading.

Please let us know if you require any additional logs, OBIS codes, or sample responses from our side to investigate this issue.

By Liu Jie , 6 February, 2026

CEWE Prometer 100

Forums
Gurux.DLMS

Hi, have you writed the date&time successfully to Prometer 100 via DLMS protocol in GXDLMS software? It seems that write is denied by prometer 100. We use client 32, password is ABCD0001, DLMS client can read date&time OBIS 0.0.1.0.0.255.
Whether Prometer 100 support date&time write permission?

By jabiragd , 5 February, 2026

Kaifa Meter Communication via Android Application

Forums
Gurux.DLMS

data = "/?!\r\n";
writeTrace("<- " + now() + "\t"
+ GXCommon.bytesToHex(data.getBytes("ASCII")));
media.send(data, null);
if (!media.receive(p)) {
throw new Exception("Invalid meter type.");
}

By Muhammed_Hassan , 3 February, 2026

OnePassDiffieHellman Key Agreement Not Working in GXDLMSDirector GUI

Forums
DLMSDirector

---> Summary
==============
- When using **OnePassDiffieHellman** signing mode in GXDLMSDirector GUI, the application throws a "Object reference not set to an instance of an object" when trying to read objects after successful connection. Additionally, the **Server keys** section in the "Secured Connections" tab cannot be expanded or scrolled to configure server certificates.

By Catalin , 2 February, 2026

Parse compact frame CF49

Forums
Gurux.DLMS

Hello,

Using GXDLMSSecureClient with Security.AuthenticationEncryption I've managed to receive the push message sent by a Honeywell gas smart meter. The OctetString value seems to be a compact frame, more precisely CF49. There is a posibility to parse the OctetString value and get the values as a "readable format" ?

Thank you in advance

By Administrator , 1 February, 2026

gurux.dlms.cpp 9.0.2602.0101

The following important issues are resolved in this version:
support added to DLMS_USE_AES_HARDWARE_SECURITY_MODULE.

By Administrator , 1 February, 2026

support added to DLMS_USE_AES_HARDWARE_SECURITY_MODULE.

Project
gurux.dlms.cpp
Status
Closed (fixed)
Priority
Normal
Category
Feature request
By Chesterfield , 31 January, 2026

Can't recognize packets when exchanging data with an electric meter Natris-I100

Forums
Gurux.DLMS

I am trying to analyse traffic between wireless module RF-433 and electric meter Natris-I100 but some parts of the messages remain unclear.

1. The RF-module sends SNRM frame:
7E A0 21 02 23 21 93 48 55 81 80 14 05 02 07 EE 06 02 07 EE 07 04 00 00 00 01 08 04 00 00 00 01 B5 D4 7E

2. Meter replies by UA frame:
7E A0 21 21 02 23 73 8F 72 81 80 14 05 02 02 00 06 02 02 00 07 04 00 00 00 01 08 04 00 00 00 01 6F EF 7E

By Windmill , 31 January, 2026

Help- to get meter data by android app

Forums
Gurux DLMS for Android

I'm trying to build app for get meter serial number using Android DLMS package. not able to get data from the meter.

By soloarte , 30 January, 2026

Increase serial baudrate

Forums
DLMSDirector

It would be possible to increase serial baudrate to higher values, greater than 115200?

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