Honeywell UDC3200 Product Manual page 66

Configuration
Function Prompt
Lower Display
Alg1 = K * Sq.Rt. {(Input A x Ratio A + Bias A) x (Input C x Ratio C + Bias C) / (Input B * Ratio B + Bias
Alg1 =K x Sq.Rt.{(Input A x Ratio A + Bias A) x (Input B x Ratio B + Bias B) x (Input C x Ratio C + Bias
Alg1 = K x [{(Input A x Ratio A + Bias A) x (Input C x Ratio C + Bias C)} / (Input B x Ratio B + Bias B)]
54
Selections or
Range of Setting
Upper Display
FFWDMu
(Standard feature on
controllers with two
analog inputs)
Controller Output = PID Output x (Input A x Ratio A + Bias A ) / Input A Range
SUMMER
(See Note 2)
Alg1 = (Input A x Ratio A + Bias A) + (Input B x Ratio B + Bias B) + (Input C x
HI SEL
(See Note 2)
Alg1 = higher of (Input A x Ratio A + Bias A) or (Input B x Ratio B + Bias B)
LO SEL
(See Note 2)
Alg1 = lower of (Input A x Ratio A + Bias A) or (Input B x Ratio B + Bias B)
√MuDIV
(See Note 1)
x (Calc Hi – Calc Lo) + Alg1Bias
See Figure 3-1 at the end of this section for an example of Mass Flow
Compensation using the Multiplier/Divider Algorithm.
√MULT
(See Note 1)
x (Calc Hi – Calc Lo) + Alg1Bias
MuDIV
(See Note 1)
x (Calc Hi – Calc Lo) + Alg1Bias
UDC3200 Universal Digital Controller Product Manual
FEEDFORWARD MULTIPLIER—Feedforward uses
Input A, following a Ratio and Bias calculation as a
value multiplied directly with the PID computed
output value and sent, as an output value, to the final
control element.
This algorithm will only function in automatic mode
and cannot be used for Three Position Step Control
applications.
The following formula applies:
SUMMER WITH RATIO AND BIAS—The following
formula applies:
Ratio C + Bias C) + Alg1Bias
INPUT HIGH SELECT WITH RATIO AND BIAS—
This selection specifies the PV or SP as the higher
of Input 1 or Input 2. The following formula applies:
INPUT LOW SELECT WITH RATIO AND BIAS—
This selection specifies the PV or SP as the lower of
Input 1 or Input 2. The following formula applies:
MULTIPLIER DIVIDER WITH SQUARE ROOT—
The following formula applies:
B)}
MULTIPLIER WITH SQUARE ROOT—The following
formula applies:
C)}
MULTIPLIER DIVIDER—The following formula
applies:
Parameter
Definition
12/04