Simulink summing block - how to get negative input at the top of the summing block?

Hi all. I would like to arrange the summer block so that the regular '+' input is on the left-hand side, and the output on the right-hand side, as usual, but I would like the negative '-' input to be at the top of the block.

I assumed that it would be possible to manipulate the inputs and rotation in some way in order to get the orientation that I need.

So far, I managed to manipulate the inputs to get this following configuration.

This looked promising, as it looked like I would then be able to do a counter-clockwise rotation to get the orientation that I need. But after applying counter-clockwise rotation, it looks like the negative '-' input automatically goes to the bottom of the block, instead of being rotated to the top of the block. So at the moment, straight after the counter-clockwise rotation, I am getting this ...

Is it possible to get the summer block to have the negative input terminal be right at the top of the block?

So far, the best I could do is to have a three input block like this ...

Thanks for any help in advance!

Answer 1

[Sam Chak]

Hi @Kenny

Enter this:

[Sam Chak]

Enter the desired signs according to this sequence.

[Kenny]

Thanks very much for your help Sam! Greatly appreciated! I will use that method you showed. Working excellently. Best regards.

[Sam Chak]

Great! 👍