Hi,
I need to edge trigger an event t achieve hysteresis on a signal and i cant see an easy way to do it. My scenario is quite common i think, so i hope someone can get me looking in the right place. I have an oil tank and i measure the level (and calculate remaining volume). when the volume goes below 700 litres I want to send an event 'Time to top up'. I thin want to disarm this event until the tank fills up beyond 800 litres. Because of temperature changes, the volume measurement fluctuates about +-10 litres and i currently get many triggers. I don't just want a time delay here as that is not suitable, The cycle is in the order of 8 months.
Thank you
Michael.