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

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?

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".

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.

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

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.

hello,

I am trying to read ProfileGeneric - Meter Block Load Profile 1.0.99.1.0.255 using DLMS C library. I get Not enough memory available.

com_read --> com_readDataBlock --> readDLMSPacket --> cl_getData

this is the flow and cl_getData stating above "not enough memory "error.

TRACE for your reference sir, ----------------------------------------------------

When using GXDLMSSecureClient with the HDLC interface, the clientAddress set in the settings object (client.settings.clientAddress) is incorrectly ignored during the generation of the HDLC SNRM frame if and only if a Security level other than Security.NONE is configured via client.ciphering.security.
If client.ciphering.security is left as Security.NONE, the HDLC source address is generated correctly based on settings.clientAddress.

cannot able to understand the flow of meter communication in gurux android project
trying to connect with lnt meter but it is not getting open and read from the android application