User`s guide

3 Signals and Parameters
3-44
Parameter Tuning with xPC Target Explorer
xPC Target lets you change parameters in your target application while it is
running in real time. With these functions you do not need to set Simulink to
external mode, and you do not need to connect Simulink with the target
application.
You can download parameters to the target application while it is running or
between runs. This feature lets you change parameters in your target
application without rebuilding the Simulink model. You cannot use xPC Target
Explorer to change tunable source block parameters while a simulation is
running.
After you download a target application to the target PC, you can change block
parameters using xPC Target Explorer. This procedure uses the Simulink
model
xpcosc.mdl as an example, and assumes you have created and
downloaded the target application for that model.
1 In xPC Target Explorer, right-click the downloaded target application node.
For example,
xpcosc.
2 Select Start.
3 To get the list of parameters in the target application, expand the Model
Hierarchy
node under the target application.
The
Model Hierarchy expands to show the elements in the Simulink model.