control_output 0 when autotune enabled

[degreal]

I have modulating heater instead of regular on/off. So I created dummy_switch for the heater and use control_ouput attribute value for heater.
I tried auto_tune feature but control_output stays at 0 even if switch is 100% on. Is that normal?

[degreal]

Nevermind. Instead of switch I should have used number parameter instead:

pwm: 0
heater: input_number.thermostat_pwm