In the Linear Analysis Tool, on the Linear Analysis tab, in the Analysis I/Os drop-down
list, the software sets the I/O set for linearization to Block: Water-Tank System.
Alternatively, if the Linear Analysis Tool is already open for your system, in the Simulink
model window, click the Water-Tank System block. Then, in the Linear Analysis Tool, in
the Analysis I/Os drop-down list, select Linearize the Currently Selected
Block.
TipWhen the specified linearization I/O set is a block, you can highlight the block in the
model by selecting the view option from the Analysis I/Os drop-down list. For example,
to highlight the Water-Tank System block, select View Water-Tank System.
For this example, use the model operating point for linearization. The model operating
point consists of the initial state values and input signals stored in the model. In the
Linear Analysis Tool, on the Linear Analysis tab, in the Operating Point drop-down list,
leave Model Initial Condition selected. For information on linearizing models at
different operating points, see “Linearize at Trimmed Operating Point” on page 2-90 and
“Linearize at Simulation Snapshot” on page 2-96.
To linearize the specified block and generate a Bode plot for the resulting linear model,
click Bode.
The software adds the linearized model, linsys1, to the Linear Analysis Workspace
and generates a Bode plot for the model.
Linearize Plant