Hi Guys, I am trying to switch off a washing machine upon power consuption goes to zero. Item configuratiion of the power outlet: Number:Energy MQTT_ZBNeoPlug01_Power "Power [%.2f W]" ( g_MQTT_ZBNeoP_01_INFO ) {channel="mqtt:topic:MQTT_NeoP_01:Power"} In the VS Code extension I see this value: […

Thanks for the responses. Forgot to mention that I tried the trigger Item MQTT_ZBNeoPlug01_Power changed from 0.0 | W but without success. Honestly I did not want to fire the rule on all change of power value so I find another way chaning the item definition (remove the UM) and the rule works we…

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: [image] Event if washing machine finished? Beginners Hello, I have an old w…

[image] a.alakszai: Item MQTT_ZBNeoPlug01_Power changed from 0.0 W You’ve focused on the right feature here, but Quantity Types with units were introduced partway through openHAB2 life, and not all parts of it yet work as fully as might be expected. Persistence for example, stores without un…

[image] rossko57: when Item MQTT_ZBNeoPlug01_Power changed then if ( MQTT_ZBNeoPlug01_Power.state > 0 | W) { // do stuff } I think he wants to see if it’s below a certain value though, to see when it has finished, so when Item MQTT_ZBNeoPlug01_Power changed then if ( MQT…

[image] a.alakszai: I did not want to fire the rule on all change of power value As I said, it costs you nothing. [image] a.alakszai: I find another way chaning the item definition (remove the UM) This is not always wise (although in this case, it will probably do no harm for an MQTT …

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

Setup, Configuration and Use Scripts & Rules

rossko57 (Rossko57) August 20, 2020, 9:25pm 6

As I said, it costs you nothing.

This is not always wise (although in this case, it will probably do no harm for an MQTT linked Item)
Example of the troubles that can arise, for later readers -