Invalid dimensions encountered while propagating dimensions from output port of Mux to...

Hey, I'm building a Two phase IM. In one of the subsystems I have a Mux with 4 inputs and it's output connects to the two Fcn blocks which gives a scalar quantity. When I run this system it gives me this error 'Invalid dimensions encountered while propagating dimensions from output port 1 of 'TPIM/Krause Model/Subsystem/Mux2' to input port 1 of 'TPIM/Krause Model/Subsystem/Fmd1'. During propagation, we are attempting to unify the dimensions of the multiplexed signal with dimensions {1,1,1,1} to obtain the dimensions 1' where Fmd1 is one of the Fcn blocks.

Answer 1

[Guy Rouleau]

This sort of error can happen for 2 reasons: Simulink misses information to propagate dimensions properly OR the dimensions you specified are wrong.

To debug, I recommend inserting Signal Specification blocks between your blocks and specify what you think the dimensions should be. It should help determining where the problem comes from.

[Bhumin Desai]

Thanks Guy...it did helped me to debug...:-)

[K E]

Guy - I would love to see a blog post sometime on 'smart debugging techniques'! I'll bet you have many tricks like this one up your sleeve.

[Guy Rouleau]

K E - I am working on gathering and documenting my "debugging tricks"... you ill definitely see a blog post on that some day

[K E]

Christmas in March! Glad to hear it.