Device reports Read-Write denied

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By sesaomz , 29 June, 2022
Forums
DLMSDirector

Hi,
I am connecting gxdlms director to one meter propietary (developed by us).
We have defined one obis with write and read permission but we are still getting "acces error: device reports read-write denied" and we don't know why. This is the frame and the response:

<WRAPPER len="14" >
<TargetAddress Value="1" />
<SourceAddress Value="1" />
<PDU>
<SetRequest>
<SetRequestNormal>
<!-- Priority: High, ServiceClass: Confirmed, Invoke ID: 1 -->
<InvokeIdAndPriority Value="C1" />
<AttributeDescriptor>
<!-- Data -->
<ClassId Value="0001" />
<!-- 0.0.96.1.10.255 -->
<InstanceId Value="000060010AFF" />
<!-- Value -->
<AttributeId Value="02" />
</AttributeDescriptor>
<Value>
<!-- 00 01 -->
<OctetString Value="3030203031" />
</Value>
</SetRequestNormal>
</SetRequest>
</PDU>
</WRAPPER>

<WRAPPER len="4" >
<TargetAddress Value="1" />
<SourceAddress Value="1" />
<PDU>
<SetResponse>
<SetResponseNormal>
<!-- Priority: High, ServiceClass: Confirmed, Invoke ID: 1 -->
<InvokeIdAndPriority Value="C1" />
<Result Value="ReadWriteDenied" />
</SetResponseNormal>
</SetResponse>
</PDU>
</WRAPPER>

What are we doing wrong?
thanks.

Kurumi

3 years 11 months ago

Hi,

It looks like everything is correct. Read the value and try to write the same value back. The meter returns a clear error. You need to check that this value is writable and data type is the same on read and write.

BR,
Mikko