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. Receive Hardware Fault

Receive hardware fault

By Suketa , 10 April, 2024
Forums
Gurux.DLMS

I am using Gurux DLMS library for ANSI C to communicate with meter.

Facing the error as "AARQRequest failed Access Error: Device reports a hardware fault" when try to communicate with meter.

In which case device reports a hardware fault?

Image

Suketa

2 years 3 months ago

In which cases hardware…

In which cases hardware fault error received?

Profile picture for user Kurumi

Kurumi

2 years 3 months ago

Hi, Please, don't add…

Hi,

Please, don't add pictures. They are impossible to read.
Can you add a hex log as plain text so I can check this?
BR,
Mikko

Suketa

2 years 3 months ago

Hello, Please find attached…

Hello,

Please find attached logs below,

DLMS Tx Data = 00 01 00 30 00 01 00 5F 60 5D A1 09 06 07 60 85 74 05 08 01 03 A6 0A 04 08 48 50 4C 32 30 32 31 37 8A 02 07 80 8B 07 60 85 74 05 08 02 02 AC 12 80 10 0B 85 C2 E1 F0 F8 7C 3E 9F 4F 27 13 09 84 42 A1 BE 23 04 21 21 1F 30 00 00 00 01 85 2F CA 13 50 A0 7F AA 0A 04 89 BF 81 D9 FD 3C 15 46 12 D1 7D 27 86 FD 87 4E

readDLMSPacket
AARQRequest failed Access Error : Device reports a hardware fault.

[E] 0:08:26.237 21 ../app/dlms_app/src/dlms_client.c:93 :u8Connect: Connection DLMS_FAIL : 1 InitializeConnection

DLMS Tx Data = 00 01 00 30 00 01 00 5F 60 5D A1 09 06 07 60 85 74 05 08 01 03 A6 0A 04 08 48 50 4C 32 30 32 31 37 8A 02 07 80 8B 07 60 85 74 05 08 02 02 AC 12 80 10 D0 E8 F4 FA FD 7E BF 5F 2F 17 0B 05 02 01 80 40 BE 23 04 21 21 1F 30 00 00 00 02 29 00 CD 03 BB E8 9E FD 5B A7 2C 01 C7 4F E6 F8 2B 51 AF 4C 5B 52 64 F9 A4 99

readDLMSPacket
AARQRequest failed Access Error : Device reports a hardware fault.

Profile picture for user Kurumi

Kurumi

2 years 3 months ago

Hi, You didn't share the…

Hi,

You didn't share the meter reply, but I noticed that you are using ciphering. Make sure that your block cipher and authentication keys are the same in both the client and the meter.

BR,
Mikko

Suketa

2 years 3 months ago

Hi, Is there any other case…

Hi,

Is there any other case in which we receive this error?

Due to this error is it any possibility to reboot the device?

Profile picture for user Kurumi

Kurumi

2 years 3 months ago

Hi, You can try to reboot…

Hi,

You can try to reboot the meter. This is a generic error and there is no way to say what could be causing this. I suggest you to contact the meter manufacturer and ask if there is a firmware update available for the meter.

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