rule "Aktueller Verbrauch Trigger 2"
when
Item AC_CURRENT_POWER received update
then
DSVerbrauchHausAktuell = (((AC_CURRENT_POWER.state as Number).floatValue) + ((DSWirkleistung.state as Number).floatValue))
//logInfo("Aktueller Stromverbrauch",(DS_Verbrauch_Haus_Aktuell.state as DecimalType).floatValue)
end
Now with OH3, I am not able to figure out how to get this to work again
.state is no longer required, but then it creates an error, floatValue is not recognized.
Without floatValue, it cannot cast NumberItem to number.
Without Number it cannot recognize the item…
Err… at this point my brain stops working and trows an error… read though the docs and the tutorials, still cannot figure this out. Can somebody please help me back on track here?
Thanks a lot!
No there is nothing changed. You will definitely need .state to get the state of an Item. You will need to cast that state to Number to get the method .floatValue.
What is DSVerbrauchHausAktuell? Is it a global var?
If it’s an Item, you have to (and always had to!) use .postUpdate(value) instead of using =
So the rule should lok like that:
rule "Aktueller Verbrauch Trigger 2"
when
Item AC_CURRENT_POWER received update
then
DSVerbrauchHausAktuell.postUpdate((AC_CURRENT_POWER.state as Number).floatValue + (DSWirkleistung.state as Number).floatValue)
end
You will not need additional brackets around the values.
Please be aware that it is very likely not to get the new value, if logging the state right after updateing the state, as this is an asynchronous task. So better use a lokal var:
rule "Aktueller Verbrauch Trigger 2"
when
Item AC_CURRENT_POWER received update
then
var nVerbrauch = (AC_CURRENT_POWER.state as Number).floatValue + (DSWirkleistung.state as Number).floatValue
DS_Verbrauch_Haus_Aktuell.postUpdate(nVerbrauch)
logInfo("current","Aktueller Verbrauch (Strom): {} kWh",nVerbrauch)
end
I read that post of yours already
Due to the items being defined via textual config, there is no Quantity assigned, as far as I can tell.
With the help of Udo’s example, I got it to work again. Don’t know, why it is working again now, since it did not for two days, and Udo was only changing the way I am doing the logging.
What remains is the mystery, that this variable no longer gets updated within the sitemap… which it did in OH2 without problems…
It is defined as a simple Text Element:
Text item=DSVerbrauchHausAktuell label="Aktuelle Last" icon="energy"
Find out. The thread does caution that both Number type Items and Number type variables may be loaded with a state with units. But you don’t get full quantity functionality, so e.g. doing maths breaks down,
Log your values out before trying to process them, and you may find out.
Changed the variable name to make it less complicated, and this version works (again)
var Number DSVerbrauchHausAktuell
rule "Aktueller Verbrauch"
when
Item AC_CURRENT_POWER received update
then
var nVerbrauch = (AC_CURRENT_POWER.state as Number).floatValue + (DSWirkleistung.state as Number).floatValue
DSVerbrauchHausAktuell = nVerbrauch
logInfo("current","Aktueller Verbrauch (Strom): {} kWh",nVerbrauch)
end
As I wrote before, it is a varable and the math works again, thanks to Udo.
The value is calculated again and i can see it in the logs as well as in Influx/Grafana. It is just that the value is not updated in the sitemap for no obvious reason. So I don’t know where to look for that…
You have a variable and an item with the same name.
That’s what you have wrote before and where maybe the confusion is coming from:
From your rule:
var Number DSVerbrauchHausAktuell
From your posting regarding the sitemap:
Text item=DSVerbrauchHausAktuell label="Aktuelle Last" icon="energy"
If this item is part of the sitemap, you need to issue an postUpdate or sendCommand in order to update the item. There is no automatic update or link between a variable and an item
