rtobj.resetOperatorOverride('variablename')
'variablename' is required.
resetOperatorOverride is a method of the simwb.rtobj object. The resetOperatorOverride method resets the operator value override flag for a particular RTDB item. For an input item that is connected to external I/O hardware, resetting the operator value override flag results in the external hardware input being passed to the model instead of the operator input value. For an output item that is connected to external I/O hardware, resetting the operator value override flag results in the model output being passed to external hardware instead of the operator input value. for an item that is an input to the modelenables the model to use the model values rather than use the operator supplied value for RTDB variables. For detailed explanation on this mechanism, please see setRTDBItemValue
Figure: Animated GIF Explaining CVT and ALT Value Concept (2mins)