On-Delay for Alarm Variables

philip · November 15, 2017, 12:21am

I would recommend having a reset setpoint for your alarm so it doesn’t toggle so much. Something like:

AlarmHigh: 90
AlarmReset: 5

if(value > AlarmHigh) then
  alarm();
endif
if(value < AlarmHigh - AlarmReset) then
 unalarm();
endif

I use a subroutine in my strategies to handle alarms that will handle high/low/reset/delays/logging etc. since I typically have a lot of points I need to alarm on in the HVAC world. Screenshots below for inspiration: