Decode ActionResponseNormal: OtherReason vs temporary failure
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An HTTP 200 from a gateway is not the device result. The synthetic APDU below separates transport acceptance from the COSEM action response.
TX c301c100070100600101ff0100 RX c701c1fa # ActionResponseNormal, result=OtherReason (synthetic)Interpretation:
c7selects the action response family; the result byte must be decoded before anyone claims that the relay moved. -
For a field verdict, add a subsequent attribute read or physical-state observation. The response byte alone is protocol evidence, not final business evidence.
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If the gateway retries, retain the original request ID and connection timestamp so the later callback cannot be mistaken for the first attempt.
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