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Insufficient room to write bytes…

Solved696 views13th March 2024Connector serial
1
Edib Šupić [SLC] [DevOps Catalyst]2.10K 13th March 2024 0 Comments

Hi Dojo,

I’m working on serial connector and I’m calculating length of the part of the response using
<Param id=”3141″>
<Name>PollNode2TypeLengthResponse</Name>
<Description>Poll Node 2 Type Length Response</Description>
<Type>length</Type>
<Interprete>
<RawType>unsigned number</RawType>
<LengthType>fixed</LengthType>
<Length>1</Length>
<Type>double</Type>
</Interprete>
<Length>
<Content>
<Param>7</Param>
</Content>
</Length>
</Param>

In the cases where the response is empty(just 00) I’m noticing this message in the logs, where is it coming from and how might I fix the issue?
CParameter::FillData|ERR|-1|PollNode2TypeLengthResponse(3141) (incoming bytes = 000000 00 .) – Insufficient room to write 1 bytes at position 10 in size 1 with data size 10

Cheers

Edib Šupić [SLC] [DevOps Catalyst] Selected answer as best 13th March 2024

1 Answer

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3
João Severino [SLC] [DevOps Catalyst]13.07K Posted 13th March 2024 0 Comments

Hi Edib,

I believe the error could be because you only have 1 byte coming in and are trying to calculate the length of the 7th ‘object’ of the response.

Since each ‘object’ will likely have 1 byte or more it is failing to find the correct bytes to calculate the length

You may need to define a secondary response to that serial command that serves as a fallback match for that scenario.

See Defining multiple responses in a pair | DataMiner Docs

Edib Šupić [SLC] [DevOps Catalyst] Selected answer as best 13th March 2024
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