Usage of Switch block according to the MAAB guidelines

Ques No 1 : Is it Compulsary to use only ~=0 condition out of 3 default conditions given in the switch block in a model?

Ques No 2: Is it against the guidelines to use the other two criteria, U2> threshold, U2>=threshold?

Answer 1

[Andy Bartlett]

To satisfy the MAAB guideline, drop in a relational operator block and a constant just prior to the switch block's middle input.

Representing the relational operation with blocks rather then having this "more advanced" configuration tucked inside the Switch Block will be more aligned with the general spirit of the MAAB rationale.

"It is easier to understand specifications when the configuration is applied with Simulink Blocks ..."

[bhavatharini T]

Understood Sir..Thank you...But if I use these extra blocks(relational operator block and constant blocks) won't this increase the complexity of the model? How come adding all these extra blocks makes the model more understandable than using the default condtions given inside the block?

If MAAB guidelines are not adhered to will the model be considered invalid or incorrect?

[Andy Bartlett]

I was not a member of the committee that established these guidelines, so I cannot fully answer your question.

But my understanding is that MAAB Guidelines are similar to MISRA rules/guidelines.

They were put in place based on a history of prior mistakes that required a lot of effort to correct later. The high level concept is that these practices will reduce the frequency and cost of mistakes.

[bhavatharini T]

Ok Sir..Thanks alot