This example shows how you can set your model to log simulation data for selected blocks only and how to view simulation data using Simscape™ Results Explorer.
Open the Permanent Magnet DC Motor example model by
the MATLAB® Command Window. Double-click the DC Motor subsystem
to open it.
Open the Configuration Parameters dialog box and then,
in the left pane, select Simscape. This example
model has data logging for the whole model enabled. To enable data
logging on a block-by-block basis, set the Log simulation
data parameter to
Use local settings and
Select the blocks for data logging. Right-click the Rotational Electromechanical Converter block. From the context menu, select Simscape > Log simulation data .
After you select a block for data logging, a check mark appears in front of the Log simulation data option in the context menu for that block.
Right-click the Inertia block and select it for data logging, as described in the previous step.
Simulate the model. This creates a workspace variable
simlog_ssc_dcmotor (as specified by the Workspace
variable name parameter), which contains the simulation
data for selected blocks only.
To open the Simscape Results Explorer, right-click one of the blocks previously selected for data logging, for example, the Rotational Electromechanical Converter block. From the context menu, select Simscape > View simulation data > simlog_ssc_dcmotor.
If you right-click a block that has not been selected for simulation data logging, for example, the Load Torque block, the View simulation data option is not available.
If you change the name of the log variable between simulation
runs, the context menu lists the names of all the log variables associated
with the block. For example, to compare data from two simulation runs,
you can use different variable names (such as
Open a Simscape Results Explorer window with
then unlink it from the session and open another window with
For more information, see About the Simscape Results Explorer.
The Simscape Results Explorer window opens, with the
already selected in the left pane, and all the node plots for this
block displayed in the right pane. You can see that it contains simulation
data only for the two selected blocks, Rotational Electromechanical
Converter and Inertia.