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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 paint pay Booth so let's look
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at the example first paint spraying
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Booth when an object enters a booth the
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spray should start and continue for 10
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seconds after that drying fans will turn
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on for 10 seconds and then puncher will
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be activated to push the
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object that means there is a start
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button that will start the process and
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then there will be a sensor that detects
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that the object has entered the Boo or
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not if the sensor gets activated the
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spray the spray will start at spray the
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pain for 10 seconds to the object and
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after that drying fans will turn on and
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it will dry the object for 10 seconds
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and after drying the puncher will be
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activated to push the
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object so for this example we will use
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normally open contacts as well as
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normally Clos contacts with that we will
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be also using some timers like TP and T
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on so let's move to T portal where we
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will draw a ladder diagram for this
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example this is the interface of of di
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portal version 16 so firstly we'll go to
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PLC tags and default tag table so here
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we need to add our inputs and outputs so
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the first input is start
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button and then we have one more input
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that is the sensor and after that we
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have some outputs like the nozle the
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spray nozle so it is an output so its
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address will be Q 0.0 and after that
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there will be one more input that is the
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fans let's say drying
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fans and then there will be the
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puncher after that we'll go to program
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blocks and then Main ob1
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so here we will draw the ladder
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diagram so firstly I will insert a
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normally open contact that will
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represent a start button and then there
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will be one more normally open contact
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that will represent the sensor and this
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will be the nozzle so this will be start
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button and then this will be
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sensor and it will be spray
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nozzle and the spray nozle will continue
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for 20 uh sorry 10 seconds for that
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we'll use a timer operation that will be
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TP and the pret value for TP will be 10
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that I will open the branch at a coil
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after that the the dry fans will get on
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and it will get on after the spray
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nozzle will turn off so for spray nozle
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we will use a normally Clos
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and the dry fans will turn on for 10
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seconds so for that we'll use a timer TP
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and the preset value for this will be 10
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seconds and after that so the spray
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nozzle will turn on for 10 seconds and
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dry fans for 10 seconds so after that
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there will be turning on of the puncher
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so I will insert a coil and for coil
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there will be an on delay timer of 20
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seconds so the preset value for t on
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will be 20 seconds and this coil will be
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puncher and let's say puncher gets
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activated for 2 seconds for that we will
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use one more timer that is TP and the
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preset value for this will be 2
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seconds after that I will uh so when
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start button is turned on and sensor
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gets activated when an object is placed
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there the firstly the spray nozle will
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turn on and it will spray the paint on
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the object for 10 seconds and when spray
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nozle gets off the current flows through
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this and dry fans gets on for 10 seconds
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and after dry fans when spray nozzle was
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on for 10 seconds and dry fans was uh
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open for 10 seconds so after total of 20
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seconds the puncher gets activated for 2
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seconds so now I will start simulation
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that I will start CPU click on okay and
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monitoring after starting monitoring I
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will switch to project View
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here we need to create a new project
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after that I will go to simulation
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tables and simulation table
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one right click here and click on load
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project TXS so as you can see
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here when I turn on the start button
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the spray nozzle doesn't get on so for
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that the sensor should get activated so
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when sensor gets activated you can see
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the spray nozzle is spraying the paint
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on the object for 10 seconds and after
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10 seconds it will stop and dry fans
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will dry the object for another 10
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second and for whole 20 second the
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puncher is waiting and you can see after
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10 second the puncher gets activated for
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seconds it was all about this example
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thank you for watching
