Configuration 
86  UDC3500 Universal Digital Controller Product Manual  3/07 
Function Prompt  
Lower Display 
Selections or  
Range of Setting  
Upper Display 
Parameter  
Definition 
MATH K 
0.001 to 1000 floating 
WEIGHTED AVERAGE RATIO OR MASS FLOW 
ORIFICE CONSTANT (K) FOR MATH 
SELECTIONS—Only applicable for algorithms 
W AVG or General Math selections √MuDIV, 
√MULT, MuDIV, or MULT. 
CALC HI 
–999. To 9999. Floating 
(in engineering units) 
CALCULATED VARIABLE HIGH SCALING 
FACTOR FOR INPUT ALGORITHM 1—Used only 
when Summer, Input Hi/Lo, or one of the General 
Math functions was selected as the Input Algorithm. 
See Note 2. 
CALC LO 
 –999. To 9999. Floating 
(in engineering units) 
CALCULATED VARIABLE LOW SCALING 
FACTOR FOR INPUT ALGORITHM 1—Used only 
when Summer, Input Hi/Lo, or one of the General 
Math functions was selected as the Input Algorithm. 
See Note 2. 
ALG1 INA 
 
 
INPUT 1 
INPUT 2  
INPUT 3  
INPUT 4  
INPUT 5  
LP1OUT  
 
LP2OUT  
 
IN AL1 
IN AL2 
ALGORITHM 1, INPUT A SELECTION—
Represents one of the following selections: 
INPUT 1 
INPUT 2  
INPUT 3  
INPUT 4  
INPUT 5 
LOOP 1 OUTPUT—Should not be used for Three 
Position Step Control applications  
LOOP 2 OUTPUT—Should not be used for Three 
Position Step Control applications  
INPUT ALGORITHM 1 
INPUT ALGORITHM 2 
ALG1 INB 
 
 
INPUT 1 
INPUT 2  
INPUT 3  
INPUT 4  
INPUT 5  
LP1OUT  
 
LP2OUT  
 
IN AL1 
IN AL2 
ALGORITHM 1, INPUT B SELECTION—
Represents one of the following selections: 
INPUT 1 
INPUT 2  
INPUT 3  
INPUT 4  
INPUT 5 
LOOP 1 OUTPUT—Should not be used for Three 
Position Step Control applications  
LOOP 2 OUTPUT—Should not be used for Three 
Position Step Control applications  
INPUT ALGORITHM 1 
INPUT ALGORITHM 2