Simscape Language Support

The Simscape™ language extends the Simscape modeling environment by enabling you to create new components that do not exist in the Foundation library or in any of the add-on products. It is a dedicated textual language for modeling physical systems. The Simscape language lets you define custom components as textual files, complete with parameterization, physical connections, and underlying equations. The components you create can reuse the physical domain definitions provided with Simscape to ensure that your components are compatible with the standard Simscape components. You can also add your own physical domains and provide complete component libraries for these domains. You can deploy the textual component files in block diagrams by converting them into custom Simscape blocks. For more information, see What Is the Simscape Language? (Simscape).

The tables list the Simscape Hardware-in-the-Loop (HIL) Workflow support for the Simscape language for different solvers.

Domain and Component Declarations

Keyword	Description	Backward Euler/Trapezoidal Rule Solver	Partitioning Solver
`annotations` (Simscape)	Control appearance of Simscape block based on the component	✔	✔
`branches` (Simscape)	Establish relationship between component Through variables and nodes	✔	✔
`component` (Simscape)	Keyword to define component model classes	✔	✔
`domain` (Simscape)	Keyword to define domain model classes	✔	✔
`inputs` (Simscape)	Define component inputs, that is, Physical Signal input ports of block	✔	✔
`nodes` (Simscape)	Define component nodes, that is, conserving ports of block	✔	✔
`outputs` (Simscape)	Define component outputs, that is, Physical Signal output ports of block	✔	✔
`parameters` (Simscape)	Declare domain or component parameters	✔	✔
`variables` (Simscape)	Declare domain or component variables	✔	✔

Equations

Keyword	Description	Backward Euler/Trapezoidal Rule Solver	Partitioning Solver
`assert` (Simscape)	Program customized run-time errors and warnings	✔	✔
`delay` (Simscape)	Return past value of operand	╳	╳
`der` (Simscape)	Return time derivative of operand	✔	✔
`equations` (Simscape)	Define component or domain equations	✔	✔
`function` (Simscape)	Reuse expressions in component equations and in member declarations of domains and components	✔	✔
`integ` (Simscape)	Perform time integration of expression	╳	╳
`intermediates` (Simscape)	Define intermediate terms for use in equations	✔	✔
`scatteredlookup` (Simscape)	Return value based on interpolating unstructured set of data points	╳	╳
`tablelookup` (Simscape)	Return value based on interpolating set of data points	╳	✔
`time` (Simscape)	Access global simulation time	╳	✔
`value` (Simscape)	Convert variable or parameter to unitless value with specified unit conversion	✔	✔

Discrete Events and Mode Charts

Discrete Variables and Events

Keyword	Description	Backward Euler/Trapezoidal Rule Solver	Partitioning Solver
`events` (Simscape)	Model discrete events	╳	✔
`edge` (Simscape)	Trigger event	╳	✔
`initialevent` (Simscape)	Initialize event variables	╳	✔

Mode Charts

Keywords	Description	Backward Euler/Trapezoidal Rule Solver	Partitioning Solver
`modecharts` (Simscape)	Declare mode charts that include operating modes and transitions	╳	✔
`modes` (Simscape)	Declare operating modes in mode chart	╳	✔
`transitions` (Simscape)	Define transitions between modes in mode chart	╳	✔
`initial` (Simscape)	Specify initial mode in mode chart	╳	✔
`entry` (Simscape)	Specify actions to be performed upon entering a mode	╳	✔

Composite Components

Language Syntax

Keywords	Description	Backward Euler/Trapezoidal Rule Solver	Partitioning Solver
`components` (Simscape)	Declare member components included in composite component	✔	✔
`connect` (Simscape)	Connect two or more component ports of the same type	✔	✔
`connections` (Simscape)	Define connections for member component ports in composite component	✔	✔
`import` (Simscape)	Import model classes	✔	✔