Error in port widths or dimensions.

The PI Controller shown in the 1st figure is used in the 2nd figure to simulate a model of PID heat exchanger controller.

ERRORS:

Error in port widths or dimensions. Output port 1 of 'Paper2/Transport Delay HE' is a one dimensional vector with 2 elements.

and

Error in port widths or dimensions. Invalid dimension has been specified for input port 1 of 'Paper2/Heat Exchanger'.

How can I remove these errors?

Answer 1

[Fangjun Jiang]

The Outport block "Out1" in "PI Controller" is connected to a BusCreator (or Mux) block. It contains two signals. That might be a mistake. Try to connect "Out1" to the output of block "Control Valve".

[Ananya Singh]

Thank you Fangjun Jiang. But the same error is persisting even after connecting "Out1" to the output of block "Control Valve"

[Fangjun Jiang]

All your signals seem to be scalar so the dimension should be 1. Update your model and start from the first place where the dimension shows 2.