Select how Simulink® software handles initialization of initial conditions for conditionally executed subsystems, Merge blocks, subsystem elapsed time, and Discrete-Time Integrator blocks.
Initial conditions are initialized the same way they were prior to R2008b.
Initial conditions are initialized using the enhanced behavior, which can improve the consistency of simulation results.
Classic to ensure compatibility with
previous releases of Simulink. Use
Simplified to improve the
consistency of simulation results, especially for models that do not specify
initial conditions for conditional subsystem output ports, and for models
that have conditionally executed subsystem output ports connected to
S-functions. For more information, see Simplified Initialization Mode and Classic Initialization Mode.
For existing models, MathWorks® recommends using the Model Advisor to migrate your model to the new settings. To migrate your model to simplified initialization mode, run the following Model Advisor checks:
For more information, see Convert from Classic to Simplified Initialization Mode.
Simplified initialization mode, you
must set Bus signal treated as vector to
error on the Connectivity Diagnostics
Classic enables the following
Check undefined subsystem initial output
Simplified disables this parameter.