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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 wood sowing so let's look at
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the example first wood sowing the sawing
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operation takes place for 10 seconds
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when push button is pressed and wood is
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placed there after sawing is complete
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the wood is removed and a blower is used
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to blow away the saw dust which remains
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seconds that means we have a start
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button that being pressed and sensor
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being activat the sensor will activate
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only when the board is being placed
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there so the sewing operation will start
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for 10 seconds and after that when
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sensor gets deactivated the fan will
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turn turn on for 5 seconds blowing away
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do does for 5 seconds so for this
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example we will use normally open
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contacts as well as normally close
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contacts with that we will be also using
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some memory bits and timers like TP so
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let's move to TI portal where we will
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draw a ladder diagram for this
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example this is the interface of TI
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portal version 16 so firstly we will go
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to here and double click on plc tags and
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default tag table so here we need to add
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our inputs and outputs so the first
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input is start button and then we have
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one more input that is the
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sensor sensor and then we have an output
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saw it is an output so its address will
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be Q 0.0 and then we have one more
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output that is the fan that will blow
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away the dust and after that I will
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double click on program blocks and then
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ob1 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 for the start
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button and a coil so this uh normally
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open contact will be the start button
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and the co the coil will represent a
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memory bit so let's say m
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0.0 and after that we add it here so I
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will add a normally open contact sorry I
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will open the branch add a normally open
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contact and close the bran so this will
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0.0 and after that this m 0.0 will be
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used here as normally open contact it
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get activated when start button is being
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pressed and then we'll use one more
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normally open contact that will
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represent the sensor so I will select
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sensor from the list and then I will
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insert a coil that will represent the
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saw so the sawing operation will start
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when M 0.0 gets through and the sensor
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gets activated M 0.0 gets through when
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start button is being pressed so this
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sawing process operation will be for a
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definite period of time and it will be
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for 10 seconds for that we will use a
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timer operation that is a
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TP and the preset value will be 10
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seconds and after that we'll use the
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swing operation here as normally open
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and then add a coil and this coil will
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represent a memory bit so this will be M
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0.1 and we will L this here so I will
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add a normally open contact sorry I will
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open the branch at a normally open
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contact and then close so this will be M
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0.1 and then this m 0.1 will be used
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here as normally open contact so this
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0.1 and here we will use one more
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normally open contact that is M
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then we will use a normally closed
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contact for the sensor so I will insert
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a normally closed contact for the sensor
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that means when the wood is not
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there when the wood is being taken away
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the sensor gets deactivated the current
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will flow through this and as a result
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on there will be fan which will
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work for 5 seconds for that we'll use a
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okay and this fan will be
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the pret value will be 5
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seconds so when start button is being
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pressed and released this m 0.0 gets
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through when it gets through the sewing
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machine will operate only if the wood is
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being placed there the sensor gets
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activated and the sewing process will
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start and it will saw the uh V for 10
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seconds so after that when sewing is
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gets activated this m 0.1 gets through
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it shows the data that sowing was was
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done and when it is activated and start
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button was being pressed and the sensor
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gets deactivated that means wooding be
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wood is being uh taken from that there
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so the fan will activate for 5 seconds
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and it will blow away the dust on the
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machine so we'll start the simulation
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finish after that I will start the
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CPU and start monitoring
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and then sech to project
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view here we need to create a new
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project in the project view let's press
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I will press contrl n to create a new
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project click on Create and then
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here and double click on simulation
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tables and then simulation table one
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here and click on load project
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TXS so when start button is being
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released this m 0.0 gets through and
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this m 0.0 allows the current to flow
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through this but the sewing operation
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has not started yet so the sensor should
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be activator so for that the wood is
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being placed there the sensor gets AC
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Ator as you can see the sawing operation
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has started and it will saw for 10
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seconds and after 10 seconds the sewing
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operation will uh will stop but this m
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0.1 gets through and when it gets
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through the fan should get on but the
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sensor should be deactivated that means
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the wood uh has to be taken from there
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the when sensor get deactivated the fan
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will blow away the dust from it for 5
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seconds and after 5 Seconds the fan will
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stop it was all about this example thank
