In simulation mode, the outputs Q and the flag M. are displayed as outputs.
The status of an output or flag is indicated by a light or dark bulb icon. The name of the output in your circuit program is displayed below this icon.
Status display of output Q1
Output switched off
Status display of output Q1
Output switched on
The output status only indicates the status as such. Here, you cannot switch an output by clicking on an icon. When your circuit program switches an output, the indicator lamp is active; when the output is switched off, the indicator lamp is also switched off.