Hallo Micha,
versuche es mit einer verschachtelten SQL-Abfrage in Grafana.
Beispiel aus meinem Dashboard für FBH:
Dashboard-Typ: Table

Code: Alles auswählen
SELECT last(GA) as GA, mean(ST) AS ST, mean(Temp) - mean(ST) as Diff, mean(Temp) AS RT, mean(ET) AS ET, mean(SW) AS SW
FROM
(SELECT last(Val) as "Temp", GA as "GA" FROM KNX_LINE1 WHERE GA='0/0/0'),
(SELECT last(Val) as "ET" FROM KNX_LINE1 WHERE GA='0/0/0'),
(SELECT last(Val) as "SW" FROM KNX_LINE1 WHERE GA='0/0/0'),
(SELECT last(Val) as "ST" FROM KNX_LINE1 WHERE GA='0/0/0') where $timeFilterManchmal helfen auch die Transformation in Grafana -> Reiter Daten transformieren
MfG Juri


