Positive and Negative Edge Trigger with TIA PORTAL / TİA PORTAL ile Pozitif ve Negatif Kenar Tetikleme

 Hello my followers I'm Seyit Baha Kılıçkap and today we are going to talk about the Edge Triggers,

So lets start in what is the edge triggering ? 

It's dedects the 0 to 1 and 1 to 0 transforms of the logical signals, So what does it means as you can see the figure at the under of this title, at the red spots you can see a transformation of the logical signal and the edge triggers respond. So at the positive edge trigger when the Input signal goings 0 to 1 the output of the positive edge trigger is 1 only for a moment and it goes to 0 again, for the negative edge triggering It's reversed, as you can see when the signal drops 1 to 0 the output signal goings to 1 for only moment and It goes to zero again.

How that works in TIA Portal ?

Firstly lets make a case for usage of this, When the start button pushed, It's going to start motor 1 and when it released It's going to start motor2, and when you push the stop button It's all going to be stop.

At the top figure, we make a basic seal circuit with set output if you want to learn more about it you can click here. As you can see at Network 1 we use a postive edge trigger in a normally open contact so that means when you push at the I0.0 which is the Start Button It's going to be a Set the Q0.0 (a.k.a. Motor 1) output to 1  , at Network 2 we use a negative edge trigger so that means when we push the button and when we release  It's going to be set the Q0.1 (a.k.a. Motor 2) output  to 1 t, so when we set the both values. Then we need to add to stop button for reset the outputs at this moment we can make a basic reset circuit can be seen at the figure at the under of this topic.

But how can the I0.0 can hold this bool informations with 1 Input? well actually It's not, you must add a Memory bool for the edge trigger , I use M10.0 and M10.1 , because at the number 10 there is not going to be confused by other values...

 After this note we can come back for the case , At the  moment we need to add to stop button for reset the outputs at this moment we can make a basic reset circuit can be seen at the figure at the under of this topic.

So with this network, when stop button pushed It's going to be reset the Motor 1 and Motor 2... 

That's all for this subject , if you need any question about this you can find me at this link.