Modbus Read, Write and Override Parameters plus Exception Codes 
3/07  UDC3500 Universal Digital Controller Product Manual  433 
10.7.25 Clock 
Table 10-34  lists all the register addresses and ranges or selections for the function 
parameters in Set-up Group Clock.  
Table 10-34  Set-up Group – Clock 
Parameter 
 
Register 
Address 
Data 
Type 
Access Data Range or 
Enumerated Selection 
Description  ID  Hex  Decimal       
Clock Hours  16  4010  16400  FP  R/W  0 to 23 
Clock Minutes  17  4011  16401  FP  R/W  0 to 59 
Clock Seconds  18  4012  16402  FP  R/W  0 to 59 
Clock Month  137  4089  16521  INT  R/W  0 = Unused 
1 = January 
2 = February 
3 = March 
4 = April 
5 = May 
6 = June 
7 = July 
8 = August 
9 = September 
10 = October 
11 = November 
12 = December 
Clock Day  19  4013  16403  FP  R/W  1 to 31 
Clock Year  20  4014  16404  FP  R/W  2005 to 2099 
Time Zone (GMT)  21  4015  16405  FP  R/W  -1200 to +1300 (hours and 
minutes away from GMT) 
 
Note: The Time Zone setting is used only for Email purposes, it has no other function.