Hi all,
I have power-values available in Nodered, that I store in a database. I want to use this power-values to monitor a special event: if everything works fine, the value changes each 5 min or so for a certain amount (it looks a bit like a rectangle signal. In the case of a malfunction, the value stays more or less constant (within tolerances). How to catch this situation to trigger a message? The value itself can vary in size, so this has to be variable. So the goal is that a certain value hasnāt changed within limits during a time-period...
Any ideas? I managed to get it otherway round, so to get messages, if the value changed, but vise versa?