Modbus Read, Write and Override Parameters plus Exception Codes
388 UDC3500 Universal Digital Controller Product Manual 3/07
Parameter
Register
Address
Data
Type
Access Data Range or
Enumerated Selection
Description ID Hex Decimal
Input
Algorithm 1
†Input source
selected via ID
205, 206, 207.
204 00CC 204 INT R/W 0 = None
1 = Weighted Average
(LSP) â€
2 = Feedforward –
Summer â€
3 = Feedforward –
Multiplier â€
4 = Relative Humidity
5 = Summer (with ratio
and bias) â€
6 = Input High Select (with
ratio and bias) â€
7 = Input low Select (with
ratio and bias) â€
8 = General Math A
(sq. rt., mult., div.) â€
9 = General Math B
(sq. rt., mult.) â€
10 = General Math C
(mult., div.) â€
11 = General Math D
(mult.) â€
12 = Carbon A
13 = Carbon B
14 = Carbon C
15 = Carbon D
16 = Carbon FCC
17 = Dewpoint
18 = Oxygen
Constant K 45 002D 045 FP R/W 0.001 to 1000
Calc High 31 001F 031 FP R/W –999.0 to +9999
in Engineering Units
Calc Low 32 0020 032 FP R/W –999.0 to +9999
in Engineering Units
PV Range Low 54 0036 054 FP RD –999.0 to +9999
in Engineering Units
PV Range High 55 0037 055 FP RD –999.0 to +9999
in Engineering Units
PV Range Low
Loop2
54 0136 310 FP RD –999.0 to +9999
in Engineering Units
PV Range High
Loop2
55 0137 311 FP RD –999.0 to +9999
in Engineering Units