Do nothing in a double case structure

[joaopam]

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pincpanter escreveu:

You missed the point: in the selected condition you would not set the voltage at all. See the following image.

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Just to clarify the situation, please read my answer above (you were probably typing yours when I've posted).

I understand the matter and I agree with that.

Regards

[pincpanter]

Joaoparm, indeed I was answering to the OP, however I agree that we could use a selection function. As thoult pointed out, however, this is less flexible.

[apok]

this looks troubling.....anyone knows why? surprised no one caught this.....

can you please post your vi so that we can understand the 'whole ' picture...

[slimy]

Thanks for your answers. As for the equal condition it´s not a problem at all, I put it there just for testing but I´m usually using a lower or equal to condition. This is how it works:

Two parameters, one measured M(t), one applied A(t). Depending on the values measured we change the applied one.

Ao is applied at the beginning until M reaches Mf, then we switch to -Ao until M reaches Mi, then we switch back to Ao until M reaches Mf, and this a certain number of times. My problem was that we reach Mi two times, at the beginning (in this case we need to keep applying Ao) and a second time (and here we need to switch back to Ao). I was thinking of putting something that indicates the sign of Ao, it would make the cases simpler, but then I thought maybe it would be even better if I just didn´t change A in the corresponding case.

I hope this clarifies it apok.