11. Appendix B
11.1. Standard Function Block Parameters
R400 Experion PKS Series A Fieldbus Interface Module User's Guide 421
July 2010 Honeywell
BAL_TIME
Classification
Simple Variable
Description
Specifies the time in seconds for the internal working value
of Bias or Ratio to return to the operator set value.
In PID block, specifies the time constant to be used to
move the integral term to obtain balance, when the output
is limited and the mode is Auto, Cas, or RCas.
FF Data Type
Float
Range
Positive
Usage
C/Contained
Length
4
Valid Views
VIEW_4
Storage
Static
Remarks
Initial value is 0
BIAS
Classification
Simple Variable
Description
Specifies the Bias value in engineering units to be used in
computing the function block output
FF Data Type
Float
Range
OUT_SCALE +/- 10 percent
Usage
C/Contained
Length
4
Valid Views
VIEW_1, VIEW_3
Storage
Non-Volatile
Remarks
Normally, the operator has permission to write these
values, but PROGRAM or LOCAL remove the permission
and grant it to a supervisory computer or a local control
panel.