ABB ControlIT 53MC5000 Instruction Manual page 160

Table 5-9. Controller Modules (CON0-3)
Title
Alarm Examples:
B335 PV PL1 PL2
(C103) (C104)
0 >60 60
0 <40 40
2 >60 60
2 <40 40
3 >60 60
3 <40 40
4 >60 60
4 >70 70
5 <40 40
5 <30 30
6 >50 10
6 <30 -10
Trend Rate
Trend Mode
Definition
Alarm Setpoint
HIGH Alarm Limit 1 is set for 60. If PV exceeds 60 = HIGH alarm.
LOW Alarm Limit 2 is set for 40. If PV falls below 40 = LOW alarm.
HIGH Alarm Limit 1 is set for 60. If PV exceeds 60 = HIGH alarm.
N/A Alarm Limit 2 is set for 40. If PV falls below 40 = no alarm condition.
N/A Alarm Limit 1 is set for 60. If PV exceeds 60 = no alarm condition.
LOW Alarm Limit 2 is set for 40. If PV falls below 40 = LOW alarm.
HIGH Alarm Limit 1 is set for 60. If PV exceeds 60 = HIGH alarm.
HI-HI Alarm Limit 2 is set for 70. If PV exceeds 70 = HI-HI alarm.
LOW Alarm Limit 1 is set for 40. If PV falls below 40 = LOW alarm.
LO-LO Alarm Limit 2 is set for 30. If PV falls below 30 = LO-LO alarm.
HI-DEV 40 Alarm Limit 1 = 10, Setpoint at 40. If PV exceeds 50 = HI-DEV alarm.
LO-DEV 40 Alarm Limit 2 = -10, Setpoint at 40. If PV falls below 30 = LO-DEV alarm.
This parameter defines the sampling rate of
the process variable trend display in seconds.
Valid inputs are 0, 1, 2, 3, 4, 5, 6, 10, 12, 15,
20, 30, and 60 seconds. When this value is
non-zero, the corresponding Trend Module
monitors PV (See Note below).
This parameter specifies the mode of the
process variable trend as follows:
0 - INST. (use instantaneous samples)
1 - AVG. (average of 1 second samples)
2 - MAX. (maximum from 1 second samples)
3 - MIN. (minimum from 1 second samples)
Atom CON0 CON1 CON2 CON3
Notes
CTR B336 B341
(0-3)
CTM B337 B342
(0-3)
2 of 9
Default
B346 B351 B336 = 2
B341,
B346, and
B351 = 0.
B347 B352 0