Ok now, all my devices are detected after isolating the code from the vertical and horizontal fins.
But I have an error on ligne 406 now.

(Climatisation) 'onHeartbeat' failed 'KeyError'.
(Climatisation) ----> Line 406 in /home/pi/domoticz/plugins/Melcloud/plugin.py, function onHeartbeat

Thank you very much, it works much better ! :D But Domoticz detects just one device. I have PARENTS and ENFANTS and just PARENTS is detected. And when I send a command with Domoticz, the other instructions have changed to default in the MELCloud application. I don't know why. Log : (Climatisation ...

Hello, I have a little problem with MELCloud plugin in my Raspberry. 0 device is find. The debug says : MELCloud Login success. Key ID: XXXXXXXXXXXXXXXXXXXXXXXXX Find 0 devices in MELCloud Calling message handler 'onHeartbeat'. Normally I have one building and 2 devices. Have you an idea ? Thanks a ...