Read one LDL1019 command and its answer
The stored LDL1019 request projected verbatim and its dispatch state. There is no answer block on this code and there never will be: the Catálogo registers no LDL1019R1, and the official LDL1019.XSD declares none. status is SUBMITTED (recorded; still queued, retried on a backoff), DISPATCHED (on the queue — the terminal state for an accepted confirmation, because no reply is owed), REFUSED (the câmara returned the LDL1019E twin; lastError carries its CodErro values) or FAILED (this rail could not deliver it).
Resposta
OK
Lifecycle state. REFUSED means the câmara received the command and returned its E twin; FAILED means this rail could not deliver it. Both are terminal and they are different facts. LDL1019 has no positive answer leg in the Catálogo, so an accepted LDL1019 stays DISPATCHED: delivered, and no reply is owed.
SUBMITTED, DISPATCHED, ANSWERED, REFUSED, FAILED 
