Draw arrows between Simulink blocks...

I just want to add (dummy) bi-directional (and uni) thick arrows between Simulink blocks. No luck from ChatGPT either for R2024a.

Answer 1

[Aabha]

Hi @Chandran,

Simulink allows users to use annotations to label block diagrams and provide more information about its contents. Both text, and image annotations can be created. Please refer to the following documentation link for more information on adding annotations to models:

https://www.mathworks.com/help/releases/r2024a/simulink/ug/annotate-models.html

In this case, to add dummy arrows, you can follow the workflow used for adding ‘Image Annotations’ as mentioned in the above link. You will need images of uni-directional and bi-directional arrows, which you can add to the model as annotations.

I hope this helps.

[Chandran]

That sounds a bit primitive and hard to maintain. Any way to use the Simulink bus and bend it at corners?

[Aabha]

Hi @Chandran,

If you prefer not to add annotations for dummy arrows, to reduce line complexity and clutter in a block diagram, virtual buses can be used in Simulink. A virtual bus is analogous to a bundle of wires held together by tie wraps. You can access the bus as a whole or select specific elements from the bus.

When you create a virtual bus, it is recommended to group lines based on their functionality. It is important to highlight that virtual buses are specifically designed for handling real, functional signals in your model. You can refer to the following documentation link for more information about grouping signals into virtual buses:

https://www.mathworks.com/help/releases/r2024a/simulink/ug/getting-started-with-buses.html

I hope this answers your question.