How to find OBIS code from readRequest value

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By arian.mares , 21 September, 2022
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General discussion

Hello,
Is there a way to find OBIS code from a ReadRequest trace?
For example this HDLC frame: 7E A0 11 03 41 FE 82 54 E6 E6 00 05 01 02 9A F0 8A 80 7E
means a readRequest for OBIS code 1.1.32.7.0.255
GURUX DLMS translator returns this:
<HDLC len="10" >
<TargetAddress Value="1" />
<SourceAddress Value="20" />
<FrameType Value="FE" />
<PDU>
<ReadRequest Qty="01" >
<VariableName Value="9AF0" />
</ReadRequest>
</PDU>
</HDLC>

How to get the OBIS code from the 9A F0 value?

Thanks,

Arian

Kurumi

3 years 12 months ago

Hi Arian,

ReadRequest is using short name referencing and there is only Int16 value that tells what to read. You need to read the association view and you can find the logical name that is mapped for the short name from there.

In short: It's not possible to get the logical name from the short name.

BR,
Mikko