Troubleshoot Signals Not Accessible by Name

Some signal types cannot be logged or streamed in the real-time application.

What This Issue Means

You cannot log or stream by name these types of signals in the real-time application:

• Virtual or bus signals (including signals from bus creator blocks and virtual blocks). For example, assume that you connect the output of a Mux block (a virtual block) to a Simulink^® Scope block. The Scope block displays the names of the Mux input signals rather than the names of the Mux output signals.

• Signals that Simulink optimizes away after you set the Signal storage reuse or Block reduction configuration parameters.

  The output of a block that was optimized away is replaced with the corresponding input signal to the block. To access these signals, make them test points.

• Signals of complex or multiword data types.

• If a block name consists only of spaces, Simulink Real-Time™ Explorer does not display a node for signals from that block. To reference such a block:

  • Provide an alphanumeric name for the block.

  • Rebuild and download the model to the Speedgoat^® target computer.

  • Reconnect the MATLAB^® session to the target computer.

Try This Workaround

Check these signal types are not being logged or streamed by name in the real-time application::

• Virtual or bus signals (including signals from bus creator blocks and virtual blocks)

• Signals that Simulink optimizes away

• Signals of complex or multiword data types

• Blocks without alphanumeric names