Modbus Read, Write and Override Parameters plus Exception Codes 
3/07  UDC3500 Universal Digital Controller Product Manual  429 
Parameter 
 
Register 
Address 
Data 
Type 
Access  Data Range or 
Enumerated Selection 
Description  ID  Hex  Decimal       
HWM 
Hours.Minutes 1 
111 406F  16495  FP  R 
Shows elapsed time of 
Timer 1 in Hours and 
Minutes. (00.00 – 23.59) 
HWM Days 2  112  4070  16496  FP  R 
Shows elapsed time of 
Timer 2 in Days. (0 – 9999) 
HWM 
Hours.Minutes 2 
113 4071  16497  FP  R 
Shows elapsed time of 
Timer 2 in Hours and 
Minutes. (00.00 – 23.59) 
HWM Days 3  114  4072  16498  FP  R 
Shows elapsed time of 
Timer 3 in Days. (0 – 9999) 
HWM 
Hours.Minutes 3 
115 4073  16499  FP  R 
Shows elapsed time of 
Timer 3 in Hours and 
Minutes. (00.00 – 23.59) 
HWM Counter 1  116  4074  16500  FP  R 
Shows the value of Counter 
1. 0-9999 ( 1 = 1000 counts 
for output relays 1 to 5) 
HWM Counter 2  117  4075  16501  FP  R 
Shows the value of Counter 
2. 0-9999 ( 1 = 1000 counts 
for output relays 1 to 5) 
HWM Counter 3  118  4076  16502  FP  R 
Shows the value of Counter 
3. 0-9999 ( 1 = 1000 counts 
for output relays 1 to 5)