Check for initial condition of enabled and triggered subsystems.
This check verifies that any Enabled Subsystem blocks or Triggered Subsystem blocks in your Simulink® model have a zero initial condition. If you have output ports with a nonzero initial condition, running this check displays a warning and provides links to the output ports.
To fix this warning, click Modify Settings to set the initial condition of the output ports of the Enabled and Triggered Subsystem blocks to zero. You can then rerun the check.