Modbus Read, Write and Override Parameters plus Exception Codes
412 UDC3500 Universal Digital Controller Product Manual 3/07
Parameter
Register
Address
Data
Type
Access Data Range or
Enumerated Selection
Description ID Hex Decimal
Power Up Mode
Recall
130 0082 130 INT R/W Control Setpoint
Mode Mode
0 = MAN LSP1
1 = AUTO LSP1
2 = AUTO Last
RSP
3 = LAST Last SP
4 = LAST Last
Local
SP
RSP Source 131 0083 131 INT R/W 0 = None
1 = Input 1
2 = Input 2
3 = Input 3
4 = Input 4
5 = Input 5
6 = Alg 1
7 = Alg 2
Setpoint Tracking 138 008A 138 INT R/W 0 = None
1 = LSP = PV (when in
Manual)
2 = LSP = RSP (when
switched)
Auto Bias 137 0089 137 INT R/W 0 = Disable
1 = Enable
Control Setpoint
High Limit
7 0007 007 FP R/W 0 to 100% of PV
(engineering units)
Control Setpoint Low
Limit
8 0008 008 FP R/W 0 to 100% of PV
(engineering units)
Control Output
Direction
135 0087 135 INT R/W 0 = Direct
1 = Reverse
Output Rate Enable 156 009C 156 INT R/W 0 = Disable
1 = Enable
Output Rate Up 110 006E 110 FP R/W 0.00 to 9999% per minute
Output Rate Down 111 006F 111 FP R/W 0.00 to 9999% per minute
High Output Limit 14 000E 014 FP R/W –5 to 105% of output
Low Output Limit 15 000F 015 FP R/W –5 to 105% of output
High Integral Limit 16 0010 016 FP R/W –5 to 105%
Low Integral Limit 17 0011 017 FP R/W –5 to 105%