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By chauvaux , 22 July, 2025

impossible to download the old version of gurux (.net 3.5) under widows 11

Project
GXDLMSDirector
Status
Closed (works as designed)

System.Deployment.Application.DeploymentException (InvalidManifest)
- Impossible to download the internal manifest from the component file.

Priority
Critical
Category
Bug report
Profile picture for user Administrator

Administrator

1 year 1 month ago

You must use the new version…

You must use the new version. Microsoft doesn't support .NET 3.5 anymore.

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By ERAIYARUL K , 22 July, 2025

HDLC DLMS data Decryption

Forums
Gurux.DLMS

Hello Sir,

I am working with the following HDLC frame:
byte[] frame = GXCommon.HexToBytes("7E 16 38 04 7E A0 1F 21 03 96 DB D6 E6 E7 00 C4 01 C1 00 09 0D 41 4C 4C 49 45 44 2D 44 4C 4D 53 30 33 D6 B5 7E");

Using the GXDLMSTranslator, I am able to successfully convert this frame into a readable XML format:

GXDLMSTranslator t = new GXDLMSTranslator();
string xml = t.MessageToXml(frame );

However, when I use the GXDLMSSecureClient to process the same frame, the result is false:

By vadiraj Revankar , 21 July, 2025

One Meter Responds to Association View GET Request in DLMS over BLE with HDLC and LOW Authentication

Forums
Gurux DLMS for Android

Hi,

By atuldd , 21 July, 2025

Regarding the dlms android project

Forums
Gurux DLMS for Android

I am integrating Bluetooth communication using the Gurux Java library. The communication setup, including SNRM and AARQ requests, is working fine. However, the Association Request does not work with meters other than LGZ Single Phase over Bluetooth, even though it works correctly over serial communication. I verified that the Association Request sent over both serial and Bluetooth is identical, but only the Bluetooth fails to get a response. Please suggest what could be the possible issue."

7E A0 19 03 41 32 3A BD E6 E6 00 C0 01 C1 00 0F 00 00 28 00 00 FF 02 00 91 53 7E

By raghavmish1 , 20 July, 2025

Getting Invalid Logical Name in Android App when clicking on Open Button

Forums
Gurux DLMS for Android

Hi Sir,

I am getting below "Invalid Logical Name" while trying to connect Indian Standard Allied Meter which I am able to connect through DLMS Director App with same Parameters using Serial Connection but when I am trying to do it using Android APP I am getting "Invalid Logical Name" when clicking on "Open" button after putting Meter Properties.

By avexa.nag@gmail.com , 18 July, 2025

Unable to generate simulator_template.xml file, its taking lot of time

Forums
Gurux.DLMS

I am unable to generator the simulator template file. Its taking lots of time.

By raghavmish1 , 18 July, 2025

how we can create serial dlms android app having Authentication encryption to connect to meter

Forums
Gurux DLMS for Android

how we can create serial dlms android app having Authentication encryption to connect to meter

By auroralane7754 , 17 July, 2025

DLMS communication issue when routing through VPN on Android

Forums
General discussion

Hello,

I'm currently testing DLMS communication over Android devices, and I've noticed that some VPNs cause the connection to drop or timeout intermittently when trying to read meter data remotely.

After several trials, I found that using Stag VPN actually resolves the issue. The communication remains stable and meter responses are consistent, even when routed through the VPN. I’m curious—has anyone else here tried DLMS/GXDLMS communication over a VPN? What’s your experience?

Any insights or alternative setups that work reliably would be appreciated.

By aria_12 , 16 July, 2025

ESP32-Based Smart Meter Interface via DLMS/COSEM

Forums
General discussion

Hi everyone, I’m prototyping a smart meter interface using an ESP32 to read DLMS/COSEM data over RS-485 and then relay that information via MQTT. For inspiration on reliable multi-node communication, I found this guide on ESP-NOW peer-to-peer networking really insightful:
https://www.theengineeringprojects.com/2022/01/esp-now-protocol-with-es…

By andale8592 , 16 July, 2025

svr_postWrite: args->size Always Zero

Forums
Gurux DLMS for ANSI C

Hi,

I'm currently developing using the example provided here:
https://github.com/Gurux/GuruxDLMS.c/tree/master/GuruxDLMSSimpleServerE…

I've noticed that in the svr_postWrite function, the args->size parameter is always zero. As a result, the loop inside that function never executes.

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