Spectrum-controls 1756sc-OF8H Series A Manuale Utente Pagina 103

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Chapter 7: HART Channel Configuration, Data, and Status 89
DEAD will be sent back if any of the following conditions are true:
Command or HART Channel number is invalid
HART channel is not enabled
HART communication has not been established, meaning that the 5-
byte unique address has not been determined yet.
All other conditioned not generating RUNNING or SUCCESS.
Examples are: invalid handle, handle timed out, channel under device
information gathering, and etc.
The following ladder demonstrates how to perform the pass-through
request and query process using ladder.
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