Modbus Read, Write and Override Parameters plus Exception Codes 
356  UDC3500 Universal Digital Controller Product Manual  3/07 
Table 10-7.1  Shed Timer Reset 
Parameter 
 
Register 
Address 
Data 
Type 
Access  Data Range or 
Enumerated Selection 
Description  ID  Hex  Decimal       
Shed Timer 
Reset Loop1 
127  007F  127  FP  W  Exit Slave Mode 
Shed Timer 
Reset Loop2 
127  017F  383  FP  W  Exit Slave Mode 
 
 
Associated Parameters 
Refer to Table 10-8 for the codes to display or change any of the parameters associated 
with the computer setpoint on loop 1. 
Table 10-8  Computer Setpoint Associated Parameters for Loop 1 
Parameter  Register Address 
Description  ID 
Hex  Decimal 
Setpoint Limits   7,8  0007, 0008  007, 008 
Local Setpoint #1  39  0027  039 
Local Setpoint #2  53  0035  053 
Local Setpoint #3   116  0074  116 
Local Setpoint #4  112  0070  112 
Local Setpoint Selection  173  00AD  173 
Computer Setpoint Ratio   90  005A  90 
Computer Setpoint Bias   91  005B  91 
Shed Timer Reset    127  007F  127