Why does PID Tuner App not open from Simulink PID Controller block?

2018 9 10
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更新时间：2025 11 13
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I am trying to tune my PID Controller using PID Tuner App. If I click on the "Tune" button, only a status window indicating the plant linearization process briefly shows up, but the PID Tuner App does not open. Why is this?

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MathWorks Support Team
编辑：MathWorks Support Team 2025-11-13

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The error is with the initially tuned PID Controller. When launching the PID Tuner Application, an initial controller is tuned using default settings and the 'form' and 'type' specified in the PID Controller block.
For example, the type could be 'PI' and the form 'Ideal (Standard)'. However, the initial controller that is determined has a Proportional gain equal to zero, which can not be represented using Ideal form.
To get around this issue, change the form from 'Ideal' to 'Parallel' in the PID Controller block(s) and launch the PID Tuner App.

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