Manual

Table 4-7. Alarm Module
Purpose:
The primary purpose of this module is to set the instrument’s Alarm Index mode, Alarm
Limits 1 & 2, and Alarm Dead Band.
Title Symbol CON Data-
point
De-
fault
Attribute
Alarm
Index
AIX0
AIX1
AIX2
AIX3
ALRM0
ALRM1
ALRM2
ALRM3
B335
B340
B345
B350
1
1
1
1
This parameter defines the Alarm Active (PA1 &
PA2) interpretation of the two Alarm Limits (PL1 &
PL2). It is entered into the datapoint as an index
value (
0-5
) as follows (n = 0-3 and correlates
with ALRM0 through ALRM3):
0
PA1n: high when PV> PL1n
PA2n: low when PV< PL2n
1
- None
2
PA1n: high when PV> PL1n
PA2n: not affected
3
PA1n: not affected
PA2n: low when PV< PL1n
4
PA1n: high when PV> PL1n
PA2n: hi-hi when PV> PL2n
5
PA1n: low when PV< PL1n
PA2n: lo-lo when PV< PL2n
Examples are provided as follows:
Alarm Examples:
B335 PV PL1
(C103)
PL2
(C104)
Alarm Notes
0 >60 60 high Alarm Llimit 1 is set for 60: PV > 60 = high Alarm.
0 <40 40 low Alarm Limit 2 is set for 40: PV < 40 = low Alarm.
2 >60 60 high Alarm Limit 1 is set for 60: PV > 60 = high Alarm.
2 <40 40 N/A Alarm Limit 2 is set for 40: PV < 40 = no alarm.
3 >60 60 N/A Alarm Limit 1 is set for 60: PV > 60 = no alarm.
3 <40 40 low Alarm Limit 2 is set for 40: PV < 40 = low Alarm.
4 >60 60 high Alarm Limit 1 is set for 60: PV > 60 = high Alarm.
4 >70 70 hi-hi Alarm Limit 2 is set for 70: PV > 70 = hi-hi Alarm.
5 <40 40 low Alarm Limit 1 is set for 40: PV < 40 = low Alarm.
5 <30 30 lo-lo Alarm Limit 2 is set for 30: PV < 30 = lo-lo Alarm.
53IT5100 Indicator/Totalizer
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