Why do I get an Algebraic Loop error when I do not have any algebraic loops in Simulink 6.0 (R14)?

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MathWorks Support Team am 27 Jun. 2009

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https://de.mathworks.com/matlabcentral/answers/100318-why-do-i-get-an-algebraic-loop-error-when-i-do-not-have-any-algebraic-loops-in-simulink-6-0-r14

Bearbeitet: MathWorks Support Team am 8 Dez. 2020

Akzeptierte Antwort: MathWorks Support Team

I have a model containing two atomic subsystems that give feedback to each other. However, one of the subsystems does not have direct feed-through (all outputs go through unit delay blocks). Simulink still reports this as an algebraic loop.

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Answer 1

MathWorks Support Team am 27 Jun. 2009

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https://de.mathworks.com/matlabcentral/answers/100318-why-do-i-get-an-algebraic-loop-error-when-i-do-not-have-any-algebraic-loops-in-simulink-6-0-r14#answer_109666

This is due to the way Simulink detects Algebraic Loops involving atomic subsystems. Please turn on "Minimize algebraic loop occurrences" in the Subsystem properties dialog for atomic subsystems without direct feed through.

For more information regarding this, please refer to the following technical solution:

MathWorks - 1-17XUV: Why does converting my subsystem to a S-function with the Real-Time Workshop introduce an algebraic loop?