Unknown object 15 0.0.40.0.0.255

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By DDobrev21 , 22 February, 2022
Forums
Gurux.DLMS

Hello,

I am trying to connect to the Gurux DLMS server C example using HighMD5 authentication and the server reports an Unknown object 15 0.0.40.0.0.255 and the client throws an error for Access Error: Device reports an undefined object. If I am using only High authentication everything works as normal. Do you have an idea where the problem might be? Thanks.

Best regards, Dimitar

Kurumi

4 years 3 months ago

Hi,

First, Green Book says that the use of authentication mechanisms MD5 and SHA-1 are not recommended for new implementations. So think if you really want to use MD5. Most of the meters are using GMAC.

There is no gxAssociationLogicalName for High-MD5 in the server example and that is causing this error. Add gxAssociationLogicalName for the MD5. You can copy associationHigh and modify it for your needs.

BR,
Mikko

DDobrev21

4 years 3 months ago

Okay, Thanks for the fast reply and for the information.

Best regards, Dimitar