Skip to main content
Home
for DLMS smart meters
Open source solutions for DLMS smart metering

Main navigation

  • Home
  • Products
  • About us
  • Open Source
  • Community
  • Forum
  • Downloads
User account menu
  • Log in

Breadcrumb

  1. Home
  2. Fragmented HDLC Packet Parsing

Fragmented HDLC Packet Parsing

Profile picture for user faizalsrahman
By faizalsrahman , 28 May, 2025
Forums
Gurux.DLMS

I have implemented a Python script to read the Header and scaler values sent from the meter through the Wrapper interface using GXDLMSReader. Similarly, I want to have a function to read a Header and Scaler from a fragmented HDLC frame. Please let me know how I can achieve this.
Note: My current implementation always returns "Invalid HDLC frame," but the frame is being translated correctly in the Gurux online translator.

Profile picture for user Kurumi

Kurumi

1 year 2 months ago

Hi, Have you changed the…

Hi,

Have you changed the interface from WRAPPER to HDLC to GXDLMSClient?

BR,
Mikko

Profile picture for user faizalsrahman

faizalsrahman

1 year 1 month ago

Hi Kurumi, Yes, I have…

Hi Kurumi,
Yes, I have changed the interface to HDLC. I am trying with Low authentication (1), Standard(1) India, with Client Address 16.
After many tries, I failed to translate the HDLC frame. I guess I'm missing something fundamental.

Profile picture for user Kurumi

Kurumi

1 year 1 month ago

Hi, Try with an example…

Hi,

Try with an example client. Are you sending SNRM?
If the meter is not replying anything you need to check the used baud rate.

BR,
Mikko

  • Create new account
  • Reset your password

Hire Us!

Latest Releases

  • Mon, 07/27/2026 - 12:37
    gurux.dlms.cpp 9.0.2607.2701
  • Thu, 07/23/2026 - 16:19
    gurux.dlms.java 4.0.96
  • Thu, 07/09/2026 - 14:34
    Gurux.DLMS.Python 1.0.201
  • Fri, 06/26/2026 - 16:32
    Gurux.Service 3.0.2606.2601
  • Wed, 06/24/2026 - 08:36
    Gurux.DLMS.Python 1.0.200

New forum topics

  • gurux_dlms.GXDateTime.GXDateTime object Error in Python
  • T_APPL_DATA_LN_N1 subtest 3 fails on an LN-only server regardless of the response to a non-existing-object GET
  • Version mismatch between Gurux.DLMS 9.x and Gurux.Common/Gurux.Serial 8.x
  • Service not known error on gprs communication
  • Help Needed: Interfacing Saral 100 Energy Meter with Microcontroller via RS232
More
RSS feed
Privacy FAQ GXDN Issues Contact
Follow Gurux on Twitter Follow Gurux on Linkedin