Image update server fails | for DLMS smart meters

By KostaG , 22 February, 2024

Forums

Hi,

I'm implementing the image update in my meter. When I send the binary through GXDLMSDirector, I get the "UnacceptableFrame" error message after ActionRequest of method 2.

Any idea of where my problem could probably be?

Thank you,

Regards.

I forgot to mention, my…

I forgot to mention, my server is written in ANSI C and I also have defined DLMS_IGNORE_MALLOC.

Hi, Is this error coming…

Hi,

Is this error coming when you are transferring the Image or in verification or activation? Make sure that the Image block size is smaller than the PDU size. This is usually the reason.

https://www.gurux.fi/Gurux.DLMS.Objects.GXDLMSImageTransfer

BR,
Mikko

It is comming while…

It is comming while transferring the first block of the Image. I checked the Image block size and it is smaller than the max PDU size.

Hi, Did you handle the…

Hi,

Did you handle the received image block in pre_action? You need to set handled to true like this:

e->handled = 1;

BR,
Mikko