Hi,
I want to retrieve data from two Holley DTSD545 smart meters using a single RS-485 communication port. I can read data from the first meter, but when I try to add the second meter, it can't connect.

Hi Kurumi,

I have worked on basic PC association by adding different objects, read and write attributes value with GuruxServer in ESP32.
Now we are trying to work on US Association with encryption and authentication. Could you please share any basic example for US Association from ESP32 GuruxServer

Thank you

Good afternoon Kurumi,

I'm trying to connect to Hexing HXE115-KP with Gurux GXDLMSDirector Version 9.0.2506.2601.

The IEC62056-21 protocol handshake is executed successfully.

Hi, Mikko,

Hello,

I have a DLMS server running on a 32-bit MCU and a DLMS host also running on a 32-bit MCU, communicating via PLC. Both work correctly: I have created several objects on the server and can successfully connect, get the association view, perform read/write operations, and close the connection properly.

I'm building a DLMS/COSEM client on Android using custom USB serial communication (no GXSerial/GXMedia). I send an SNRM request and receive a UA response that starts and ends with 0x7E, but the Gurux Java parser treats it as malformed.

Works:
Genus and Landis+Gyr meters: UA parsed correctly.

Fails:
HPL and L&T meters: UA response appears malformed.

The same configuration (client address, baud rate, etc.) works fine in the Gurux DLMS demo app.