NA-MAAB — No recommendations
JMAAB — a
The initial condition shall be defined on an Outport block when both of these conditions are met for a conditional subsystem:
When the output signal from a conditional subsystem is connected to a Merge block, the initial condition shall be defined on the Merge block.
The initial condition is defined.
The initial condition is not defined.
Sub ID a:
The model may not behave as intended when the initial condition is unclear.
Model Advisor check: Check undefined initial output for conditional subsystems (Simulink Check)
JMAAB guideline jc_0640, which is available in Control Algorithm Modeling Guidelines Using MATLAB, Simulink, and Stateflow on the MathWorks® website.