Function Blocks 
CARB Carbon Potential Function Block 
Revision 11    HC900 Hybrid Control Designer Function Block Reference Guide  107 
2/07     
TUNING tab 
 
 
 
Table 33 CARB Tuning tab configuration parameters 
 
Properties Group  Parameter  Index #  Parameter Description  Value or Selection 
Tuning Constants 
Prop Band 
 
 
 
 
or 
Gain 
0 
PB1 or 
Gain 1 
 
 
 
36 
PB2 or 
gain 2 
Proportional Band (PB) - is 
the percentage of the range of 
the measured variable for 
which a proportional controller 
will produce a 100 % change in 
its output.  
Gain - is the ratio of output 
change (%) over the measured 
variable change (%) that 
caused it. 
 
G =
100 %
PB %
 
 
where PB is the proportional 
Band (in %) 
0.1 to 1000 
0.1% to 1000 %