Invalid connection from output port 1 of 'Discrete-Event Chart' to 'Input Port 1' of 'Entity Gate'. Ports are not compatible and cannot be connected

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Laila El Warraqi
Laila El Warraqi 2022-11-8
回答： Devesh Bhasin 2022-11-10
I have a simulink process with a Discrete Event Chart where I modeled machine failure. If the machine is in failure then the process stops and the entity gate closes, else the entity gate opens.
However, I keep getting the error of invalid connection, so the incompatibility between the output port of the discrete event chart (which i called MachineFailure) and the input port of the ENTITY GATE.
How can I solve this issue?

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Devesh Bhasin
Devesh Bhasin 2022-11-10
This error sometimes shows up when a simEvents entity or message is connected to a Stateflow chart. If this is the case you, the following procedure should resolve this error:
  1. In your Stateflow chart, open the Symbols Pane.
  2. Click on the 'New Message' button on the top of the Symbols Pane.
  3. Go back to our model. A new message Input Port should now appear for the Stateflow chart. Connect your simEvents entity or message to this port.
I work at MathWorks and have conveyed the need of a clearer error message to the appropriate team.
If this does not resolve the issue, please create a case with the MathWorks Technical Support and share your model.

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