How can you view the function call event for a function call subsystem?

How can you view the function call event for a function call subsystem? 

Answer 1

[MathWorks Support Team]

In the Function-Call Subsystem, you can launch the block parameters of the "Trigger Port" block and check the "Show output port" option. You can then connect the output with a "Scope" or "To Workspace" block. In this way, every time the subsystem is called, the signal is logged. If you connect to a Scope, you can open the Scope setting dialog. In the "Style" tab, choosing a "Marker" will make the output more clear. 

The Trigger block will output a value as:

• 1 for a signal that causes a rising trigger
• -1 for a signal that causes a falling trigger
• 2 for a function-call trigger
• 0 otherwise