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hello everyone myself
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badas in this video I will discuss one
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example which is single lamp control
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buttons so design a PLC program to
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control one lamp with three push buttons
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so the lamp can be switched on or off
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button so here we have three inputs
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which are three push buttons and one
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output which is one lamp so this is very
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example try to solve this example
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without seeing the solution
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software and take three
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inputs we have three push buttons so we
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have to take three inputs and give the
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command the first one is push
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one the second one is push button two
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is push button three so these are the
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inputs okay now we have one output
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right so I will take one
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output and give comment lamp
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now I will go to basic functions and I
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gate so this is my R I will just give
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R now what I will do I will connect
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these three inputs to this logic
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now I will take one pulse
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relay go down and select pulse relay
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remember you can compl complete this
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program using other function blocks also
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and make sure to try other blocks
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okay now I will connect the output of R
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to the fulse relay trigger input so give
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the comment also pulse
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relay okay now the program is completed
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now I go to tools and click
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simulation before doing the simulation
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as these are push buttons and change the
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property to push button instead of
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toggle switch so right click properties
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simulation and select the second one
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momentary push button make type okay
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similarly for the second one select the
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second one push button
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and you can see in the
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bottom the graphics symbols are updated
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from the toggle switch to the push
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button go to properties
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simulation and select push button make
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now I will press push button one one
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happened sorry we have
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not the output is not yet connected so
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just come out and connect the
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output okay now go to tools and
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simulation now I will press push button
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happened pulse relay output is on lamp
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is on again I will select push button
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two one time I'll press it one time
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off what happens here is
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the r logic gate output will be on when
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when of the push button is on okay the
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relay when the input is received at
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trigger input at Pulse relay block pulse
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relay block output will toggle if the
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output is in off State it will become on
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if the output is in on
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state then it will be off it will change
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its state from off to on are off to off
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to on or on to off whenever there is an
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input pulse at trigger input right now
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what is the output of pulse relay it is
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off so whenever we press the push button
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then the r logic gate output will be on
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right at that time the pulse relay will
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input each time when the trigger input
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is in on State 0 to 1 okay then the
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pulse relay changes its
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state now what I will do instead of
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Simply pressing and releasing the push
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button immediately I will press and hold
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for some time and then I will release so
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that you can see the status clearly now
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I will press push button three and I
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will fold okay see what happens push
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button three is on that is why the r
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third input is on when any of the input
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of the r gate is in on state then output
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is in on state as R output is on the
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pulse relay trigger input is also on
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whenever pulse relay receives a signal
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at the trigger it changes its state
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output State previously the output state
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is in off state right now it is in on
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state that is why our lamp is also on
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now I will release the push button three
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okay if any of the push button is
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pressed now then what happens again
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signal will go to R Block again R Block
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will send the signal to the pulse relay
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again pulse relay changes its output
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state right now it is an on state it
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will go to off that means lamp will be
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off I will press push button one and
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then I will hold and then I will release
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this we can control one
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lamp with any of the push
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okay this is very simple
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task I will give you one simple task to
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you try to practice is okay right now we
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have three inputs three push buttons and
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one output one lamp right now consider
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10 inputs 10 push buttons and one lamp
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you have to control this lamp with any
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of the 10 push buttons okay same concept
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I'm just increasing the number of push
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buttons so try to solve this share with
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us through the comment section how do
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you implement this okay this simple
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task thank you I will meet you in the
