11. Appendix B
11.1. Standard Function Block Parameters
R400 Experion PKS Series A Fieldbus Interface Module User's Guide 471
July 2010 Honeywell
READBACK
Classification
Record
Description
Represents the "readback" of the actual continuous valve
or other actuator position in transducer units.
FF Data Type
DS-65
Range
Usage
C/Contained
Length
5
Valid Views
VIEW_1, VIEW_3
Storage
Dynamic
Remarks
Read Only
The data type consists of the value and status of floating
point parameters that are Inputs or Outputs. It uses the
following two elements.
1 Status
2 Value
READBACK_D
Classification
Record
Description
Represents the "readback" of the actual discrete valve or
other actuator position in the transducer state.
FF Data Type
DS-66
Range
Usage
C/Contained
Length
2
Valid Views
VIEW_1, VIEW_3
Storage
Dynamic