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Hello.
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In this video we are going to continue to if loop examples 
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I will create a new project
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in the programs area.
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I will say new as ST language I will select it and say okay and then we will write a ladder
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diagram first.
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I will add one more program to here.
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And according to ladder diagram we will adopt it as structure text programming
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new program is creating now and now it's created.
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So let's continue with a ladder diagram programming LD M10
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If M 10 that means so what happens mov for example 1 to d0 and the second network if ld m1 is
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M10
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Sorry not active or not okay then move for example 2 to D0 but let's put here one more contact
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and add M11 and then if LDI M10 and also normally close M11 that moment mov 0 to D0
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what will happen if somebody press 2 and 10 1 will be inside to the 0 if m m 10 is not active but
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if somebody pressed for example M11 2 will be in D0 if m10 is not active and M11
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is not activated by you or by operator that moment zero is going to be inside of D0.
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So let's  write.
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plc project according to this ladder diagram as st language in here.
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I will start if m 10.
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Then what will happen now.
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1 will be inside D0
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So  what can we write here.
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D0 is going to be 1 and ELSIF  this is not
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else this is.
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Elsif and we will put second option to here.
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ELSIF M11 THEN but also we can say ELSIF M11 and not m10 then that moment what
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will happen.
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D0 is going to be 2 and else that moment.
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0M  is not active and also M11  is not active and also it is not M10 is not suitable for this
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line else we can put here D0 it calls to 0 END_IF; but also we can say in here ELSIF not m 10
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and not M11 then we can put it like this so let's  compile our project and there is no error I will go
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on line to my plc and I will say send it to plc and say OK and OK we are ready first in the
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ladder diagram
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I will activate M10 set on.
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So D0 is one and set off that moment D0 is zero M11 set on so d0 is two and set
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oFf that moment it is zero it is working and again set on is one set off and set on it is equals to
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two set off now we are at the beginning position go to st program M10 is set on so you can see D0
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is 1 and set off and then activate M11 in here set on.
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So d0  equals two, and set oFf it is still zero.
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So it is working this is equals to
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this one this is the second example of the ıf loopinstruction or if instruction for the structure
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text programming.
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See you in the next video.