Real-Time Workshop User's Guide

Tunability of Linear Block Parameters

The following blocks have a Realization parameter that affects the tunability of their parameters:

• Transfer Fcn
• State-Space,
• Discrete Transfer Fcn,
• Discrete State-Space
• Discrete Filter

The Realization parameter must be set via the MATLAB set_param command, as in the following example.

set_param(gcb,'Realization','auto') 

The following values are defined for the Realization parameter:

• general: The block's parameters are preserved in the generated code, permitting parameters to be tuned.
• sparse: The block's parameters are represented in the code by transformed values that increase the computational efficiency. Because of the transformation, the block's parameters are no longer tunable.
• auto: This setting is the default. A general realization is used if one or more of the block's parameters are tunable. Otherwise sparse, is used.

Note    To tune the parameter values of a block of one of the above types without restriction during an external mode simulation, you must use set Realization to general .

Tunable Expressions

Signals: Storage, Optimization, and Interfacing