Modbus Read, Write and Override Parameters plus Exception Codes 
400  UDC3500 Universal Digital Controller Product Manual  3/07 
Parameter 
 
Register 
Address 
Data 
Type 
Access  Data Range or 
Enumerated Selection 
Description  ID  Hex  Decimal       
C2 Range  236  00EC  236  INT  R/W  0 = 4-20 mA 
1 = 0 -20 mA 
Current 
Output 1  
242  00F2  242  INT  R/W  0 = Disable 
1 = Input 1 
2 = Input 2 
3 = Input 3 
4 = Input 4 
5 = Input 5 
6 = PV 
7 = CB Out 
8 = DEV 
9 = Output 
10 = SP 
11 = LSP 
12 = RSP 
13 = In Alg 1 
14 = In Alg 2 
15 = PV2 
16 = CBOUT2 
17 = DEV 2 
18 = Output Loop 2 
19 = SP Loop 2 
20 = LSP1 Loop 2 
21 = RSP Loop 2 
Current 
Output 1 
Range 
235  00EA  235  INT  R/W  0 = 4-20 mA 
1 = 0-20 mA 
Current 1 
Low Scaling 
Factor 
100  0064  100  FP  R/W  Within the range of the 
selected variable in ID 242 
Current  1 
High Scaling 
Factor 
101  0065  101  FP  R/W  Within the range of the 
selected variable in ID 242