How do I remove an opening on my model

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Caleb
Caleb 2022-10-29
回答： Vinayak 2023-5-23
When trying to plot my PID controller to a Root Locus Editor on the control systems designer, and selecting the location for open loop response, I am returned with a message stating “ The selected location is defined as a permanent opening in the architecture. Remove this opening to create a response at this location.“ I was following a simulink tutorial called Simulink Control from UofM, Carnegie and Detroit Mercy.

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Vinayak
Vinayak 2023-5-23
Hi Caleb,
The message indicates that there is a permanent opening in the architecture of your model. i.e. an open circuit path.
As long as the opening persists, the model will not be able to run and henceforth, this needs to be closed.
You might need to individually go through all blocks and subsystem blocks to check if one of the blocks is not connected to the other i.e. a block whose inputs or outputs are not connected, or a block with an open input or output port that is not being used. You will need to connect this block or delete it if its not in use, that would help close the circuit.
Thanks

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