Modbus Read, Write and Override Parameters plus Exception Codes 
208  UDC2500 Universal Digital Controller Product Manual  4/07 
Parameter 
Description 
Register 
Address 
Data 
Type 
Access  Data Range or 
Enumerated Selection 
  Hex  Decimal      
Input 2 
Transmitter 
Characterization 
00AB  171  INT  R/W  0 = B TC 
1 = E TC H 
2 = E TC L 
3 = J TC H 
4 = J TC M 
5 = J TC L 
6 = K TC H 
7 = K TC M  
8 = K TC L 
9 = NNM H 
10 = NNM L 
11 = Nicrosil H TC 
12 = Nicrosil L TC 
13 = R TC 
14 = S TC 
15 = T TC H 
16 = T TC L 
17 = W TC H 
18 = W TC L 
19 = 100 PT RTD 
20 = 100 PT LO RTD 
21 = 200 PT RTD 
22 = 500 PT RTD 
23 = Radiamatic RH 
24 = Radiamatic RI  
25 = Linear 
26 = Square Root 
Input 2 High 
Range Value 
0023  035  FP  R/W  –999. to 9999. Engineering 
Units 
Input 2 Low 
Range Value 
0024  036  FP  R/W  –999 to 9999. Engineering 
Units 
Input 2 Ratio  0025  037  FP  R/W  –20.00 to 20.00 
Input 2 Bias  0026  038  FP  R/W  –999 to 9999. Engineering 
Units 
Input 2 Filter  002B  043  FP  R/W  0 to 120 seconds