how to flip the inputs of an simulink block

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XAXRXTX
XAXRXTX am 27 Aug. 2014
Kommentiert: Star Strider am 29 Aug. 2014
Hi everyone
I have an integrator block, and I want to invert its inputs, so I explain
the first input is x the signal to be integrated (the top input)
the second input is y the initial condition (the bottom input)
I want that x became the bottom input and y the top input
thanks in advance
  3 Kommentare
XAXRXTX
XAXRXTX am 27 Aug. 2014
for example the cross product block you have two inputs A & B and one output C C = AxB the question is
how to put the A letter in the place of B input ...
A in the Top and B in the bottom of the block
after the inversion of the inputs
B in the Top and A in the bottom of the block
without affectiong the output
Andy L
Andy L am 27 Aug. 2014
Does this need to be done based on a condition that is set during simulation?

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Antworten (1)

Andy L
Andy L am 27 Aug. 2014
See the image below. A variable switches the input on the switch blocks - see switch for information on setting the input conditions. In this figure the input is switched by a constant but you could replace that to suit your needs (a signal generator for example).
So in this example whilst the switch variable is not greater than 0, input 1 is A, and 2 is B. When it is, these swap, A becoming the input to 2, and B becoming the input to 1.
  4 Kommentare
Andy L
Andy L am 29 Aug. 2014
XAXRXTX,
Would my solution for switching the inputs not work for your scenario then?
Star Strider
Star Strider am 29 Aug. 2014
You don’t need to switch the inputs. Just negate the result. It has the same effect.

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