SimMechanics

SimMechanics Limitations

Some Simulink features and tools do not work with models containing SimMechanics blocks:

• You cannot change the block properties of SimMechanics blocks at the command line. See Setting SimMechanics Block Properties at the Command Line in Modeling Mechanical Systems.
• The following tools do not work with SimMechanics models.
• External mode
• Profiler
• Real-Time Workshop
• The following tools and features work with SimMechanics models but only on non-SimMechanics blocks in those models.
• Execution order tags do not appear on SimMechanics blocks.
• SimMechanics blocks do not invoke user-defined callbacks.
• You cannot tune SimMechanics block parameters.
• You cannot set breakpoints on SimMechanics blocks.
• You cannot use the Fixed-Point Blockset Interface with SimMechanics blocks.
• The Report Generator does not generate information on SimMechanics blocks.
• The S-Function Target tool cannot generate an S-function from a subsystem containing SimMechanics blocks.

Accelerator Mode Restrictions

Certain SimMechanics features require algebraic loops to detect discrete events and are incompatible with Accelerator mode:

• Stiction implemented with Joint Stiction Actuator blocks.
• Detecting a point leaving the end of a constraint curve in the Point-Curve Constraint block.

Motion Singularity and Inconsistency Errors

Visualizing and Animating Machines