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In this video we are going to do if loop example.
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I will create a new project in the program area.
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I will create firstly ladder diagram and say new and OK
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a new project is created.
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This is the first example and then I will add LD M0 out m0 and also I will add set m1 and also reset
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m2 this will be like this.
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So what's happening in here.
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If m0 is active that moment we are resetting M2.
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We are setting M1 and we are giving a pulse while the m0  is active but this is something wrong
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in here because m 0 is used in here m1 n2 and we can say to M3 then how can we write this
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code as ST language.
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So in the programs area right click and say new and structure text selected and say OK
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and ST  programming area is open so we can just write our variables in here.
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If m 0 then so what was it.
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Remember the output was m2 was resetted m1 set and M3 was just according to m3 condition
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it will be on or off.
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So how can we write it.
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We can write it like this m2
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was should be false M1 should be true.
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This is what I remember in our example M1  is set m2 reset 
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So what we did in here
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M2 is going to be false that means  reset m1 is going to be true.
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So that means it is going to be set after m0 becomes high.
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And I will say and if so and loop is finished in here but one more thing that we need to put here we
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forgot M3.
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So M3 will be equals to M0 according to our example.
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We should put it to here.
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So firstly I will go online to my simulator.
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This project is compiling and this project is compiled and say execution code going to be transferred
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to simulator.
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And now it is  send simulator stopped.
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so say Run Okay.
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Now M0 is set on what's happened M2 is false.
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And m1 set and M3 is active.
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So m0 is gone or off so M1 is still set M3 is off M2 still of that I will say set off to it and
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I will go offline and I will delete it .
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Then let's focus to ST program that we write go on line say OK the project is compiling that we
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are on line but it needs to do a transfer again say OK
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then m 0 it set on you can see M0 is active M2 is still false and what is true at M3 is active m 0 is
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set off then m2 is still false M3 is off but M1 still active.
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So this is equals to our ladder diagram example.
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In the end if you want to reset our M1 how can we do it.
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I will go on line edit so we can say at this point for example in here or in here we can say else for
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example M1 it goes to false then update it it is updating now update the programme line it is going
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to send source code and Okay m0  we are going to say set on
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but it is not allowing to it, I will go now set on m1 is true m2 is still false m3
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is active m 0 is set off that moment all of them is off.
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So this is our first if loop example in the next video I will continue to second example.