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countdown timer as PI point

Question asked by frans.degraaf on Jul 6, 2020
Latest reply on Aug 25, 2020 by frans.degraaf

Hello PI community,

 

Starting a gasturbine happens in a sequence of steps each with a different timespan, the starting sequence is not connected to the PI system.

is there a timer that can count back so i get an alarm when the step takes to long?

 

i like to make a sequence with 6 different timers witch can be started and give an alarm when they reach 0

 

somting like this 

 

purge   5 minutes    whe 0 alarm 

start       1 minute

runup    3 mniutes

grid connection 1 minute

to baseload 10 minutes

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