Hi together 
I came across a visual error where the active function is actually the inactive function and vice versa.
Here the Log file:
Traceback (most recent call last):
File “/opt/Mycodo/mycodo/controllers/controller_function.py”, line 79, in loop
self.run_function.loop()
File “/opt/Mycodo/mycodo/functions/bang_bang.py”, line 188, in loop
if last_measurement[1] > (self.setpoint + self.hysteresis):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: ‘>’ not supported between instances of ‘NoneType’ and ‘float’
2025-04-01 18:03:14,519 - DEBUG - mycodo.outputs.on_off_mqtt_dff865a4 - output_on_off(off, 0, None, 0.0, 0.0, True)
2025-04-01 18:03:14,521 - DEBUG - mycodo.outputs.on_off_mqtt_dff865a4 - Output dff865a4-e0a2-4d17-b072-c674d52579e8 CH0 (Temp) OFF at 2025-04-01 18:03:14. Output returned: None
2025-04-01 18:03:14,554 - INFO - mycodo.controllers.controller_function_da8c3832 - Deactivated in 256.2 ms
2025-04-01 18:03:21,883 - INFO - mycodo.function.bang_bang_da8c3832 - Bang-Bang controller started with options: Measurement Device: bd0acb27-28f8-4531-a933-c31dda2ba17d, Measurement: efa776fe-4072-4358-a235-8ec4692a80fb, Output: dff865a4-e0a2-4d17-b072-c674d52579e8, Output_Channel: 0, Setpoint: 17.0, Hysteresis: 3.0, Direction: raise, Period: 30.0
2025-04-01 18:03:21,883 - INFO - mycodo.controllers.controller_function_da8c3832 - Activated in 328.4 ms
2025-04-01 18:03:22,072 - ERROR - mycodo.controllers.controller_function_da8c3832 - Exception while running loop()
Traceback (most recent call last):
File “/opt/Mycodo/mycodo/controllers/controller_function.py”, line 79, in loop
self.run_function.loop()
File “/opt/Mycodo/mycodo/functions/bang_bang.py”, line 188, in loop
if last_measurement[1] > (self.setpoint + self.hysteresis):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I would be greatfull for any help