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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 automat test bench so let's
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first automator test bench when a test
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specimen is placed on the bench a series
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of three test should run sequentially
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each lasting for 10 seconds the time
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delay between two test should be 5
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seconds so there will be a sensor that
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will detect the presence of a test
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specimen and then there will be test one
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for 10 seconds and after that it will
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wait for 5 seconds then there will be
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test two for 10 seconds and then there
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will be a delay of 5 Seconds and then
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three so for this example we will use
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normally open contacts and with that we
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will be also using a timers like TP and
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T on so let's move to TI portal where we
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will draw a ladder diagram for this
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example so this is a interface of TI
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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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firstly we have one input that is a
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sensor which detects the presence
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of the test specimen and then there will
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be machinery for test one so this is an
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output so this will be Q
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0.0 and then we have the machinery for
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three 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 diagram
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so firstly when the sensor gets
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activated when the sensor gets
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activated test one will be done so this
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test one will be for 10 seconds so there
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will be a timer operation TP here and
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the preset value for this will be 10
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seconds and then I will open the branch
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here add a coil and then there will be
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test two so this test two will be after
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test one and with a delay of 5 Seconds
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so there will be a total time delay of
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15 seconds so the preset value for t on
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will be 15 seconds and this test two
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will happen for 10 seconds so this the
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preset value for the test two will be 10
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seconds and then again I will open the
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branch add a coil and this coil file
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three and this test three will be after
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test two so there will be 15 + 10 is 25
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and + 5 that is the delay that is there
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should be a delay of 5 Seconds between
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two consecutive tests so there will be
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it will wait again for 5 seconds and
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then the test three will happen so there
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will be 15 + 10 is 25 so there will be
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30 seconds so we'll use T on
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and there will be a delay of 30 seconds
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and then there will be a TP here that
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will send the pulse for 10 seconds only
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so when sensor gets activated we can put
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here the start button I
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0.1 and the tag will be
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start we can go to PLC tags
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here default tag table so we can put
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start button so this will be I
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0.2 so now when start but but is pressed
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and there is a test specimen placed over
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there then the test one will happen for
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10 seconds and after 10 seconds it will
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wait again for 15 seconds so it will
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wait for 15 seconds and test two will
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happen for 10 seconds and then again it
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will wait for 5 seconds more and then
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the test three will happen so we'll
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start the simulation here
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finish after that I will start the
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monitoring after that I will CH to
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project view where we need to create a
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project let's create a new project click
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go to simulation tables and simulation
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one so here I will right click load
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tags and then when I turn on the start
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button nothing happens but when sensor
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one the machiner for test one activate
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and it does a test for 10 seconds and
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after that the test one will stop and
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then there will be a delay of 5 Seconds
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and after 5 Seconds test two will happen
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the machinery for test two will operate
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and it will operate for 10 seconds so
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after 10 seconds the basry will stop
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working and again it will wait for 5
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seconds more and after 5 Seconds test
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three starts the machinery for test
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three starts and after that it will also
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stop so after 10 second test three
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machiney fall test three also
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stopped it was all about this example
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thank you for watching
