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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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coolant so let's look at the example
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first machine indicator lights suppose
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you have a warning light system to
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indicate whether a machine is running or
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not two red lights will indicate
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individual machine 1 and Machine 2
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running status these machines operate
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for 10 second and 20 second respectively
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two green lights will indicate when
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operating that means there will be a
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start button that will start the
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machines and when machine one is running
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red light one will turn turn on and
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green light two will turn on and then
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after that machine two will turn on with
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that red light two will be on and green
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light one will be also on so for this
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example we will use normally open
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contacts and some memory bits we will be
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also using some timers like TP and T on
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so 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 PLC tags and default tag table so
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here we need to add our inputs and
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outputs so the first input is
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button and then we have some outputs
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machine one then we have Machine
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2 so the address for the the outputs
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will start with q and then
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0.0 and then we have red light
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red light 2 and then we have green light
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one and then we have green light
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two so these are our inputs and outputs
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after that you'll go to program blocks
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double click on Main ob1
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so here we will be drawing the ladder
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diagram so I will zoom into it like this
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so firstly I will insert a normally open
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contact and a coil and this normally
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open contact will be the start button
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and the coil will be a memory bit that
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0.0 and this m 0.0 will be last here so
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I will open the branch add a normally
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open contact and close so this will be M
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0.0 and and after that we will use this
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m 0.0 here I will add a normally open
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0.0 and we will use this m 0.0 to turn
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on two coils so I will open the branch
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here and add one more coil so this
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coil will represent M 0.1 and this coil
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0.2 so this m 0.1 will be used to turn
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on machine one red light one and green
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light two so machine one will be on for
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10 seconds so we will use a timer
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TP and the preset value for the TP will
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seconds and then this m 0.0 M 0.2 will
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be on after 10 seconds so there will be
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a delay of 10 seconds so we will we have
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we are using here t on and the preset
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value for t on will be 10 seconds and
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this m 0.2 will be used for to turn on
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Machine 2 red light two and green light
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one and Machine 2 remains on for 20
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seconds for that we will use a TP here
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and the preset value for TP will be 20
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seconds so now we can use M 0.1 here as
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normally open contact that remains on
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for 10 seconds and that will
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make and then I will again open the
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branch and add a coil so this m 0.1 will
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make machine one on for 10 seconds with
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that red light one and green light two
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will also be on so this coil will be for
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machine one and then red light
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two so these things machine one red
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light one and green light two will be on
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for 10 seconds and after that we will
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use one more normally open
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m02 so this m 0.2 will be used to turn
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on Machine 2 for 20 seconds with that
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red light two and green light one will
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also be on so I will insert three coils
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one by one for Machine 2 open the branch
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add a coil for Red Light 2
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and then open the bran and a coil for
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green light one so this will be Machine
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two and then green light
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one so as you can see here when start
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button is pressed and released M 0.0
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gets through and when M 0.0 gets through
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M 0.1 gets on for 10 seconds and when M
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0.1 gets on for 10 seconds machine 1
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gets on for 10 10 seconds with that red
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light one and green light two also
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becomes on for 10 seconds and after 10
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seconds this m 0.2 gets on for 20
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seconds and when M 0.2 gets on for 20
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seconds this machine two works for 20
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seconds and in those 20 seconds red
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light two and green light one also
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remains on so we will start the
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finish after that I will start the
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monitoring and then I will switch the
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let's create a new project here
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go to simulation tables and simulation
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table one right click
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here and load project
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a so as you can see here when start
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pressed and then release you can see
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on after that machine 2 turns
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on and it will remain on for 20 seconds
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as you can see 1920 and after 20 seconds
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these Machine 2 red light two and green
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off so when I turn on start button as
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you can see here M 0.0 get gets true and
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with that this m 0.1 gets through for 10
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seconds and with that machine one red
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light one and green light two gets on
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and after 10 seconds it start working
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and M 0.2 gets through for 20 seconds
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with that machine 2 red light two and
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green light one gets on and it remains
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on for 20 seconds and after that as you
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can see here after that after 20 second
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16 17 18 19 20 and 0.2 gets off and with
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that this Machine 2 red light 2 green
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light one also gets off it was all about
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this example thank you for watching
