How to trigger a rule upon change of a Power (W) value

[Hans_Lree (DigiH)]

You cannot have the “W” in your rule trigger, as stated in the log.

Maybe have a look at what I suggested in another thread, and how I check for when my washing machine has finished:

Event if washing machine finished?

Hello, I have an old waschmachine without integration in wlan. So I have installed between current and waschmachine an switch that can read the power of the machine. [2020-08-16 14_00_31-Waschmaschine] So I need a rule, that send me a message, if the power over 10 minutes under 3 watt. How can I do this? Thank you!

I.e. trigger the rule when your Item MQTT_ZBNeoPlug01_Power changed in general, then check for the values in the rule.

In your case you will have to convert the state to a quantity type for the comparisons though

if (MQTT_ZBNeoPlug01_Power.state == 0.0 | "W") {
…

Great washing machine by the way. Most modern ones I come across still have a small standby power consumption or was your machine switched off already when you got the 0.0 reading and therefor the initial rule was never triggered as the power might be slightly above 0 and needs adjusting?