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Modbus Read, Write and Override Parameters plus Exception Codes
214 UDC2500 Universal Digital Controller Product Manual 4/07
10.7.11 Alarms
Table 10-19 lists all the register addresses and ranges or selections for the function
parameters in Set-up Group Alarms.
Table 10-19 Set-up Group – Alarms
Parameter
Description
Register
Address
Data
Type
Access Data Range or
Enumerated Selection
Hex Decimal
Alarm 1 Setpoint 1
Value
0009 009 FP R/W Within the range of
selected parameter or PV
span for deviation alarm
Alarm 1 Setpoint 2
Value
000A 010 FP R/W Within the range of
selected parameter or PV
span for deviation alarm
Alarm 2 Setpoint 1
Value
000B 011 FP R/W Within the range of
selected parameter or PV
span for deviation alarm
Alarm 2 Setpoint 2
Value
000C 012 FP R/W Within the range of
selected parameter or PV
span for deviation alarm
Alarm 1 Setpoint 1
Type
008C 140 INT R/W
0 = None
1 = Input 1
2 = Input 2
3 = PV
4 = Deviation
5 = Output
6 = Alarm on Shed
7 = SP Event On
8 = SP Event Off
9 = Manual
10 = Remote Setpoint
11 = Failsafe
12 = PV Rate of Change
13 = Alarm on Digital
Input 1
14 = Alarm on Digital
Input 2
15 = Loop Break
16 = Deviation based upon
SP2
17 = T/C Warning
18 = T/C Fail