In the Select Linearization Points in the Bus dialog box, in the Bus Hierarchy
section, expand the limits bus, and select upper_saturation_limit. limits is
a nested bus within the OUTPUTBUS signal.
TipTo filter bus elements by name within a large bus, you can enter search text in
the Filter by name box. The name match is case-sensitive. Also, you can enter a
MATLAB regular expression (MATLAB).
To modify the filtering options, click next to the Filter by name box.
Specify Portion of Model to Linearize in Simulink Model