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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 which will
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be about color detection so let's look
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at the example first color detection
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suppose we are using a color detection
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machine with three colors red blue and
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green a sensor is used to detect the
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colors when the red color is sensed
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machine a works for 10 seconds when the
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blue color is sensed machine B is
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actuated for 8 seconds and when the
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green color is sensed machine c will
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work for 5 seconds so for this example
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we will use normally open contacts and
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with that we will also Implement
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latching and use timer like TP so let's
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where we will draw a ladder diagram for
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example this is a interface of TI portal
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version 16 firstly we'll go to PLC tags
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table so here we need to add our inputs
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and outputs so the first input is the
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start button that will start the whole
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process after that we have some sensors
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the first sensor is the red sensor that
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will detect the red color and then we
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sensor and then we have green
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sensor and then we have some outputs
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a as it is an output so its address will
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0.0 and then we have have
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machine B and then we have
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C after that we'll go to program blocks
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ob1 so here we will draw the ladder
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diagram so I will zoom into it firstly I
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will insert a normally open contact and
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a coil so this normally open contact
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will be the start button and this Quil
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will be a memory bit so the start button
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will be a push button so when it is
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pressed and release this m 0.0 should be
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on so I will open the branch add a
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normally open contact and then close so
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this will be M 0.0 so in this way we
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have implemented latching so now I will
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insert a normally open contact that will
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represent M 0.0 and then we have coil
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for machine a so this machine a will
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work when the red when the sensor
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detects the presence of the red color so
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this will be the red color sensor so
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this sensor will detect the red color
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and it gets on if it if the object is
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red colored then this sensor gets
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activated and machine a works for 10
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seconds so for that we will use a timer
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operation and that will be TP and the
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preset value for TP will be 10
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seconds after that I will open the
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add a coil and this coil will be for
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machine B and this machine B will
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operate only if the sensor detects the
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blue color so when there is the uh when
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the object is blue colored then this
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sensor will get activated and machine B
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will operate and the Machine B should
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operate for 8 seconds for that we will
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use TP here at Pulse timer and for that
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the preset value will be 8
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seconds and then there will be machine C
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also so I will open the branch and then
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add a coil so this will
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be machine C and this machine c will
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operate only if the object is green
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color so there will be a sensor which
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when the uh when the object is green
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colored and when it gets activated
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machine c will operate and machine C
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seconds so for the for TP the preset
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value will be 5 seconds so now as you
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can see here when start button is
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pressed and released this m 0.0 gets
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through and when it gets through
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then and then if the object is red
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colored machine will operate for 10
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seconds if the if the object is green
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colored machine c will operate for 5
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seconds and if the object is blue
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colored then machine B will operate for
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8 seconds so for now I will start
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simulation after that I will start
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CPU and then I will start
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monitoring after that I will switch to
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view where we need to create a new
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project let's create a new project here
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after that we'll go to simulation tables
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and then simulation table one and then I
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will right click here and click on load
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project tag so firstly we need to press
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and release the start button then this m
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0.0 gets through and then if the red
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activated the machine a will operate for
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10 seconds but machine B and machine c
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operate so after 10 second machine a
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gets off and as you can see
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here if the blue if the uh if the object
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is sensed blue so this sensor gets
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activated and machine b gets on for for
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8 seconds and after 8 seconds it gets
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off and then if the object is green
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colored it gets activated and machine c
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will operate for f and after that it
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will turn off so as you can see here
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if the green colored object is detected
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machine c will operate for 5
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seconds and if the bluee is sensed then
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machine B will operate for 8 seconds and
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it will will automatically stop and if
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is red color then machine a will operate
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for 10 seconds it was all about this
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example thank you for watching
