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By P3NCYUYkUtQkKX64H , 23 April, 2025

hwo to connect to Genus meter via HighSHA256?

Forums
DLMSDirector

The "Authentication" drop-down for Genus meters only shows "None", "Low", and "HighGMAC". how do i add "HighSHA256" to that list? yes, the meter definitely supports mechanism 6.
I see that the goe.obx file that's downloaded from the website only has those 3, but I can't see a way to edit that file, and I can't see a way to do this in the Manufacturer Settings dialog, either.

By Administrator , 22 April, 2025

gurux.dlms.c 9.0.2504.2201

The following important issues are resolved in this version:
AES Hardware Security Module improved.

By Administrator , 22 April, 2025

AES Hardware Security Module improved.

Project
gurux.dlms.c
Status
Closed (fixed)
Priority
Normal
Category
Feature request

Harshi_554

1 year 1 month ago

dlms

dlms

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By lah , 22 April, 2025

How to encode authentication mechanism name as octet string in AssociationLogicalName

Forums
Gurux.DLMS

Hi,

I am trying to enable/disable HLS security on E360 meter from Landis. I am having troubles with how to generate correct frame for GXDLMSAssociationLogicalName object. I am trying to write "AuthenticationMechanismName" (attribute 6) to the meter but I would need to encode it not as a struct but as an octet string, could you help me with that?

This is an output frame that I am currently getting:
C104C102000F0000280002FF0600004000002B0000FF0200020207110211101202F411051108110211011600

By scathaig , 21 April, 2025

dayOfWeek initialized with 0 instead of 0xFF

Project
Gurux.DLMS.Python
Status
Closed (fixed)

Reported for Version 1.0.178.

In the GXDateTime class, the variable self.dayOfWeek is initialized with "0" -> https://github.com/Gurux/Gurux.DLMS.Python/blame/9575fe600e643b0f43385d…

If a meter sends 0xFF for the dayOfWeek this value will not be updated and the resulting GXDateTime object will have "0" instead of "0xFF" for the dayOfWeek property -> https://github.com/Gurux/Gurux.DLMS.Python/blob/9575fe600e643b0f43385db…

In the C# code however DayOfWeek is initialized with 0xFF and therefor does not have this problem -> https://github.com/Gurux/Gurux.DLMS.Net/blob/446e1914e1c6d06061c190e2f1…

So self.dayOfWeek should also be initialized with 0xFF in the python GXDateTime class.

Priority
Normal
Category
Bug report
Profile picture for user Administrator

Administrator

1 year 1 month ago

Fixed to version 1.0.179

Fixed to version 1.0.179

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By Fullerene , 20 April, 2025

How to decrypt RF433 data from/to DLMS Emeter?

Forums
General discussion

Hello everybody!

I am trying to create wireless DLMS client for Nartis emeter, based on my own hardware (STM32 MCU & CMT2300A transceiver).

By logic analyser i can see all the traffic between remote control panel and meter, but I can't understand what kind of information is being transmitted. Most likely, encryption is used when transmitting data wirelessly.

Is there a description anywhere of exactly how data is encrypted during wireless exchange?

By Lisa8888 , 18 April, 2025

I can't connect the MT880 CM-LTE-3 modem meter to Gurux in DLMS.

Forums
Gurux.Serial

Hi,
I connected the CM-LTE-3 modem to the PC through RS485-USB converter. I set Gurux with the parameters:
-Iskraemeco
-HDLC
-Authentication none
-Client Address 46 (30+16)
-Logical Name Referecing on
-Physical Server 11
-Logical Server 1
-Serial COM4 9600 8N1
-DLMS standards
But the MT880 doesn't answer me. "Failed to receive reply from the device in given time".

By JavierDiaz , 18 April, 2025

Addressing 1 and 2 byte

Forums
Gurux.DLMS

Hi,

I use the settings:

Max payload size - 125

Packet SNRM with address size 1:

7E A0 1F 02 21 61 93 FF 13 81 80 12 05 01 7D 06 01 7D 07 04 00 00 00 01 08 04 00 00 00 01 89 E1 7E

Packet SNRM with address size 2:

7E A0 1F 02 21 61 93 FF 13 81 80 12 05 01 7D 06 01 7D 07 04 00 00 00 01 08 04 00 00 00 01 89 E1 7E

As far as I understand, the address with a size of 1 should be different, but here the packets are the same.

By niralldas8@gmail.com , 17 April, 2025

Wrapper connection in java

Forums
Gurux DLMS for Java

Getting error like this,
C:\Users\COMP\Downloads\gurux.dlms.java-master\gurux.dlms.client.example.java>java -jar target\gurux.dlms.client.example.java-0.0.1-SNAPSHOT.jar -S COM4:115200:8NoneOne -i WRAPPER -c 48 -a High -P ABCDEFGH12345678 -C AuthenticationEncryption -T 4C54434C49454E54 -A 31323334353637383930313233343536 -B 31323334353637383930313233343536 -v 0.0.43.1.3.255 -d India -t Verbose
WARNING: A restricted method in java.lang.System has been called

By atuldd , 17 April, 2025

Regarding the dlms android project

Forums
Gurux DLMS for Android

In GXDLMSDirector, I was able to successfully read data without explicitly setting the baud rate. However, in the Android application, selecting a baud rate is mandatory — there's no option to leave it unset. Even after selecting the same baud rate as used in GXDLMSDirector, the Android app fails to retrieve any data.

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