If at the end of the alarm delay time the point is in alarm, Continuum will generate the alarm notification regardless of how many times the point has RTN during the delay period. if the point go to alarm again, Continuum will generate the alarm soon.
The customer challenge us on this issue, they think the alarm delay calculagraph should be clear when the point has RTN.
IP level controller
Need a solution to meet the customer's requirements.
- Create an infinityNumeric point to trigger the alarm
- Create an program to set the alarm point to on/off
The original alarm point is Fanfault, and delay time setting in the AlarmEnrollment is 60 seconds
Create on infinitynumeric named Fan_alarm and attached a AlarmEnrollment with delay setting.
Create an program as below:
if Fanfault is on then go to setting
if Ts>=60 then Fan_alarm=on
if Fanfault is off then goto detecting
if ts>1 then go to detecting
More detail about AlarmDelay Operation ,pls find the article LL#12067