Monitoring/Debugging Matlab® Code

When executing the project on the controller and while you are connected and logged on to the controller, the Matlab® viewers can be switched to debug mode.
In a similar way as for graphical IEC 61131-3 code worksheets, you can:

Select a program instance to monitor the code execution in debug mode.
As for IEC 61131-3 code worksheets, you can call a Matlab® instance by double-clicking the respective instance node in the PLANT or by selecting the context menu item 'Go to Instance Editor' in the Matlab® viewer.
Example
While a Simulink® worksheet shows online values, you can display online value tooltips by hovering over an object with a test point (available as a hidden/internal port on the input or output of a block).
Example
In online Stateflow charts, active states are shown with a blue frame.
Online values are displayed in the Symbol view on the right side.
In online Truth Tables, online values are displayed in the Symbol view on the right side.
Force and overwrite IN and OUT ports.
In the Simulink® viewer, you can force/overwrite ports directly at the port symbol.
Example: overwriting a Matlab® port in the Simulink® viewer

In Stateflow charts and Truth Tables, forcing and overwriting has to be done in the Symbol view on the right side.
Add IN and OUT ports to the WATCHES window and/or to the LOGIC ANALYZER for monitoring purposes (by drag & drop).
In the Stateflow chart viewer and in Truth Tables, online values have to be dragged from the Symbol view on the right side. Alternatively, the context menu of a variable can be used.
Example: adding a Matlab® port to the WATCHES list from the Simulink® viewer

Example: adding a Matlab® port to the LOGIC ANALYZER from the Simulink® viewer

Refer to the help chapter "Controller Commissioning: From Compiling to Debugging" for details.