jc_0171: Clarification of connections between structural subsystems
Guideline Publication
Control Algorithm Modeling Guidelines - Using MATLAB®, Simulink®, and Stateflow®
Sub ID Recommendations
NA-MAAB — No recommendations
JMAAB — a, b
MATLAB Versions
All
Rule
Sub ID a
Visual depiction of signal flow shall be clearly shown between subsystems.
Use of Goto and From blocks shall be allowed if:
At least one signal line is used between connected subsystems.
Subsystems connected in a feedback loop have at least one signal for each direction.
Not Applicable
Sub ID b
Structural subsystems shall not have pass through signals exclusively for signal routing.
Not Applicable
Signals that are not used in the subsystem are connected to avoid crossing of signal lines.
Rationale
Sub ID a:
Clarifies structural subsystem connections and execution order.
Sub ID b:
Eliminating unnecessary connections clarifies the relationship between connections.
Deviation from the rule can cause to confusion due to unused input/output signals.
Verification
Model Advisor check: Check connections between structural subsystems (Simulink Check)
Last Changed
R2025a
See Also
Version History
Introduced in R2020a