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. Node
  3. Negative Indexing For Custom Method/attribute

negative indexing for custom method/attribute

By andre538 , 13 August, 2026
Forums
DLMSDirector

Hello Mikko,

As written in Green Book:

"NOTE As specified in DLMS UA 1000-1 Ed. 13:2019, 4.1.2, manufacturers may add proprietary methods and/or attributes to any object, using negative numbers."

There is a lot of index positivity checks (for methods and attributes ) in GXDLMSClient.cs, so as far as I see proprietary methods or attributes will be blocked. Any way to change this behaviour?

Best regards, Andre

Profile picture for user Kurumi

Kurumi

1 month ago

Hi Andre, Only attributes…

Hi Andre,

Only attributes that are defined in the DLMS standards are supported. It's not possible to add support for proprietary methods or attributes because we don't know what the manufacturer means by this attribute or how it should be handled.

BR,
Mikko

  • Create new account
  • Reset your password

Hire Us!

Latest Releases

  • Wed, 08/26/2026 - 09:04
    Gurux.DLMS.Python 1.0.203
  • Mon, 08/17/2026 - 11:28
    Gurux.DLMS.Python 1.0.202
  • Mon, 08/17/2026 - 09:47
    gurux.dlms.cpp 9.0.2608.1701
  • Mon, 08/17/2026 - 09:25
    gurux.dlms.c 9.0.2608.1701
  • Mon, 07/27/2026 - 12:37
    gurux.dlms.cpp 9.0.2607.2701

New forum topics

  • 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)
  • Reading PushSetupObject attr 10 error
More
RSS feed
Privacy FAQ GXDN Issues Contact
Follow Gurux on Twitter Follow Gurux on Linkedin