Modbus Read, Write and Override Parameters plus Exception Codes
352 UDC3500 Universal Digital Controller Product Manual 3/07
10.4 Miscellaneous Read Onlys
10.4.1 Register Addresses for Read Onlys
The identifying register addresses listed in Table 10-3 represent some information that is
Read only. No Writes allowed.
Table 10-3 Miscellaneous Read Onlys
Parameter
Register
Address
Data
Type
Access Data Range or
Enumerated Selection
Description ID Hex Decimal
Software Type 157 009D 157 INT RD READ only (UDC3500)
35 = UDC3500
Software Version 167 00A7 167 INT RD READ only
Value less than 255
10.4.2 SetPoint Program Read Only Information
The identifying register addresses listed in Table 10-4 represent some information for
SetPoint Programming that is Read only. No Writes allowed.
Table 10-4 SetPoint Program Read Only Information
Parameter
Register
Address
Data
Type
Access Data Range or
Enumerated
Selection
Description ID Hex Decimal
Present SPP Segment
Number
251 00FB 251 INT RD 1 – 20
Segment Time Remaining
in Minutes
252 00FC 252 INT RD 0 – 59 Minutes
Segment Time Remaining
in Hours
253 00FD 253 INT RD 0 – 99 Hours
Cycles Remaining 254 00FE 254 INT RD 0 – 100
Current Cycle Number 255 00FF 255 INT RD 0 – 100