Black Box IC108A Guía de usuario Pagina 53

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Advant
®
Smart Device (HART
®
) Interface User’s Guide
Section 2.4.3 Techniques of Mapping Smart Device Variables to Advant OCS
3BUR 001 085R0001 REV A 2-41
acknowledgment, it can overwrite the data image table it maintains with fresh data. This
technique is especially useful for reading digital data rapidly.
Writing to Coils or Registers
There are four methods to write to coils and registers:
ROC, Read Output Coil
ROR, Read Output Register
DFOA-C, Define Output Only Area - Coil
DFOA-R, Define Output Only Area - Register
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