db_0143: Usable block types in model hierarchy

Guideline Publication

Control Algorithm Modeling Guidelines - Using MATLAB^®, Simulink^®, and Stateflow^®

Version 6.0

Sub ID Recommendations

NA-MAAB — a
JMAAB — a

MATLAB Versions

All

Rule

Sub ID a

Model levels shall use only the block types that are defined for the layer type. Clearly defined layer types restrict the number of blocks that can be used.

Block restrictions:

(R2011a and earlier) Enable block cannot be used at the root level of the model.
Action ports are not permitted at the root level of a model.

Layer restrictions:

Data flow layers that are used for basic blocks only.
Other than data flow layers, layers can include blocks that are used for structural subsystems and all other layers.

Blocks that can be used for all layers include:

Custom Parameter

Layer type

Block type

Rationale

Sub ID a:

Readability is impaired when subsystems and basic blocks are used in the same layer.

Verification

Model Advisor check: Check for mixing basic blocks and subsystems (Simulink Check)

Last Changed

R2020a