
1/03 UDC 6300 Process Controller Product Manual 185
5.15 Input Math Algorithms, Continued
8 segment
characterization
Two 8-Segment Characterization selections can made in Section 3 -
Configuration; Set Up group “ALGORITHM”, under function prompts:
8 SEG CHAR
Xn VALUE
Yn VALUE
8 SEG CHA2
Xn VALUE2
Yn VALUE2
An 8 segment characterizer can be applied to either Input 2 or Input 4,
Output 1, or Output 2.
When Input 2 or Input 4 is used, the selected inputs Ratio and Bias are
applied to the Xn values.
When one of the loop outputs is selected, the Xn Values are the output
from the control algorithm, and the Yn Output is the final control element
action.
An example of 8 Segment Characterization is shown in Figure 4-2.
Polynomial Equation
A fifth order Polynomial equation can be used on any one of the five
Analog Inputs. The equation is in the form:
Y = C
5
* 10
-7
X
5
+ C
4
* 10
-5
X
4
+ C
3
* 10
-3
X
3
+ C
2
* 10
-1
X
2
+ C
1
X +C
0
Where:
X is the analog input selected
C
0
is a value between –99.99 to +99.99
C
1
- C
5
are values between –9.999 to +9.999
Ratio and Bias can be applied on the "Y" output term as follows:
Calculated "Y" Value =
Y * Input x Ratio + InputX Bias
Where: "X" refers to the analog input being used and the
range assigned to the "X" input chosen applies to
the "Y" calculated value.
Refer to Section 3 - Configuration, Set Up group “ALGORTHM”,
function prompt “POLYNOM” to select an input, and “C0 VALUE”
through “C5 VALUE” to enter the coefficients.
Continued on next page
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