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Hello everyone, welcome to automation
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community. Today in this video we are
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going to discuss an example in which we
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will control solenoid using three toggle
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Example one. If toggle switch one is on
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then solenoid one, solenoid 2 and
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solenoid 3 will be on. If toggle switch
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two is on then solenoid one and solenoid
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2 will be on. If toggle switch three is
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on then solenoid one, solenoid 2 and
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solenoid 3 will be off.
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So we have three toggle switches and
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three solenoids. So when toggle switch
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one is turned on all the solenoids gets
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on and when toggle switch two gets on
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will when we will turn on toggle switch
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two then only solenoid one and solenoid
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2 will remain on and solenoid 3 gets off
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and when we turn on to switch three then
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all the solenoids gets off. So in this
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example we will use normally open
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contact and two normally closed contacts
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and for solids we will be using coils.
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So let's move to cordices where we will
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draw a ladder diagram for this example.
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Firstly we will open cordises.
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So we need to create a new project.
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and then we can rename the project as
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example one. And we need to select the
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template as standard project and click
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After that we need to uh keep it ladder
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logic diagram and click okay.
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After that we will click on PLCRG and
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here we will draw the ladder diagram. So
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firstly when toggle switch one is on all
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the motors will turn on. So we will
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insert a normally open contact here for
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or we can write simply as toggle one.
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And then we will insert a coil here for
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solenoid one. This will be
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one. Okay. And after that we need to
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insert solenoid 2 and solenoid 3. Three
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coils. So we will open the branch here.
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And this will be solenoid
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2. And after that we have one more
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solenoid. Let's open the branch again
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Click here and insert branch.
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So in this way if we click here and
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click on this insert branch no branch is
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inserted. So firstly click here and
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click on this option insert branch below
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and then we will insert a coil. So in
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this way we have inserted three coils
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here. So this will be solenoid
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Okay. So when toggle switch one is on
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all the three solenoids will turn on.
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And then we have toggle switch two. When
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toggle switch two is turned on only
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solenoid one and solenoid 2 gets remains
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on and so 3 gets off. And before this
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soil night tree, he'll insert a normally
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closed contact here. And this will be
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Okay. And then we have when toggle
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switch three is on all the solenoids
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gets off. So for that we'll insert
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we will insert a normally closed contact
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here and this will be stallinoi sorry
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toggle switch three toggle switch three
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okay so here when toggle switch one is
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turned on the signal will pass through
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and then the son I3 is off initially the
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current will sorry the signal will pass
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through this. So light one gets on. The
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signal will pass through this. So light
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two gets on. And similarly toggle two
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switch two is is also false. Initially
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the signal will pass through this and so
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and for now all the soil lights are on
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and now toggle switch two is turned on.
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Okay. So toggle switch two is only
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present here. So when it is turned on as
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it is a normally closed contact the
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signal will not pass through this. As a
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result the soil light 3 gets off but so
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light one and so light 2 remains on. And
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then when toggle switch three is turned
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on the signal will not pass through
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this. As a result all the solids gets
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For now we will generate code here.
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Go to online and start simulation.
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So as you can see here, all the soil
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lights are false for now. And when I
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turn on toggle switch one, we will click
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make it true, and then debug.
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And you can see here all the soil
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knight, soil knight one, soil knight
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two, and soil knight three. all the
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solids gets on. So when I turn on toggle
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switch one, all the solenite gets off.
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when I turn on solenoid 2, debug it and
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you can see so 3 gets off but solid one
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and solid 2 remained on. And then when I
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turn on uh toggle switch three, let's
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debug it. And you can see all the
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So let's repeat. We will turn all the
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toggle switches as off.
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As you can see here, initially all the
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solenoids are in false state. And when
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we change the state of toggle switch one
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And then we need to debug it. Click on
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write uh write values. You can see all
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the solenoids gets on. So one is on. So
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2 is on. So 3 is on. When turning on
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toggle switch one, the signal passes
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through this. Toggle switch three is
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normally closed contact. In false state,
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the signal will pass through this. So
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light one gets on. The signal will pass
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through this. So light two gets on. The
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signal will pass through toggle switch
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two as well. As it is a normally closed
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contact and its status falls here. So in
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fall state it's conducts no signal the
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signal passes through this and soil 93
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also gets also on and then when we turn
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on toggle switch two as well
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you can see here toggle switch two is
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only present here. So in true state
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toggle switch two is in true state. In
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true state normally close contact do not
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pass the signal. As a result so knight 3
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gets saw but so night one is on and also
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soil night 2 is also on. And then when
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we turn on the toggle switch three we
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change the state from false to true.
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Let's debug it and write values. And
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this toggle switch three will not allow
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signal to pass through this. As a
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result, signal will not reach sol 1, 2
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and three. As a result, all the solids
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gets off. It was all about this example.
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Thank you for watching.
