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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.

By Somesh_8073 , 17 April, 2025

Not enough memory available. (ReadObject failed) COM_READ

Forums
Gurux DLMS for ANSI C

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, ----------------------------------------------------

By harshdeep , 17 April, 2025

Incorrect HDLC Source Address (0x21) Sent When Security Level != NONE (Python Library v1.0.178)

Forums
Gurux.DLMS

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.

By atuldd , 16 April, 2025

Regarding the dlms android project

Forums
Gurux DLMS for Android

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

By Costa , 16 April, 2025

Decode PDU using shortname

Forums
Gurux.DLMS

Hello!

Recently, I’ve been trying to decode an information report packet with the PDU interface type, but the value always comes out as null, even though the GXDLMSTranslator decodes it correctly. I would like to know if this is indeed as it should be. I’m using the library version 9.0.2503.2001 for .NET.

By Frank , 15 April, 2025

How to get UIValues

Forums
General discussion
Hi
is there a method to get the UIValue based on the actual
value read in the meter?

for example, I have a GXDLMSData that has a custom 
attributesettings that defines GXObisValueItem like 
for example:
GXObisValue Value is 1 and UIValue is Reset

right now I am manually matching them

GXDLMSAttributeSettings atbr = dataobj.Attributes[1]; 
if (atbr.Values.Count > 0) 
{ 
	foreach (GXObisValueItem val in atbr.Values) 
	{ 
		if (dataobj.Value != null &&
			int.TryParse(dataobj.Value.ToString(), out int parsedValue) &&
			val.Value == parsedValue)
By benyamin.chesh… , 14 April, 2025

The date is not displayed correctly.

Forums
Gurux.DLMS

Hello
I am facing this problem in getting the date. I would be grateful if you could suggest me a solution.
The time is correct, but the date is wrong, and the correct date is glorious
trace debug
Clock : Index: 2 Value: 01/01/1970 18:10:47<LF>
Index: 3 Value: -210<LF>
Index: 4 Value: 0<LF>
Index: 5 Value: 01/01/1970 00:00:00 UTC+00:00<LF>
Index: 6 Value: 01/01/1970 00:00:00 UTC+00:00<LF>
Index: 7 Value: 0<LF>
Index: 8 Value: 0<LF>
Index: 9 Value: 0<LF>

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  • Wed, 08/26/2026 - 09:04
    Gurux.DLMS.Python 1.0.203
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  • Mon, 08/17/2026 - 09:47
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    gurux.dlms.cpp 9.0.2607.2701

New forum topics

  • Security vulnerability report — request for a private contact (GuruxDLMS.c / ANSI C)
  • Topic: Insufficient Memory Error When Reading Class 7 Profile Generic Objects
  • SN ReadResponse returns all-null values when response spans multiple HDLC frames
  • Gurux.Serial.Android 3.0.6 – CH340 (HL-340) USB-Serial Adapter Not Working,
  • Trying to talk to a L&G E360 meter (Using Python Gurux)
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