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0:11
hello everyone welcome to automation
0:14
Community today in this video we are
0:17
going to discuss an example which will
0:20
be about automatic
0:22
sanitization so let's look at the
0:24
example
0:26
first automatic sanitization the
0:29
sanitization process should run for 10
0:32
seconds when the door is used four
0:34
times so there is an unlock button to
0:38
unlock the door so when unlock button is
0:41
pressed four times then the sanitization
0:43
process will start for 10 seconds so for
0:46
this example we will be using normally
0:49
open contacts normally close contacts
0:52
implementing latching and uh some timers
0:56
like
0:58
TP so let's move to TI portal where we
1:01
will draw a ladder diagram for this
1:05
example this is the interface of TI
1:07
portal firstly we'll go to PLC tags and
1:13
default tag table so here we need to add
1:16
our inputs and outputs so the first
1:18
input is unlock
1:21
button and then we have one output that
1:24
is sanitization that will be a
1:27
nozle that will do the sanitization of
1:30
the
1:31
door so this is an output so it address
1:34
will be like Q 0.0 so we have only two
1:37
inputs and uh
1:40
outputs so now we need to go to program
1:43
blocks and double click on Main ob1 so
1:47
here we will be drawing ladder diagram
1:49
so I will zoom into it so firstly I will
1:51
insert a normally open contact and a
1:54
coil this normally open contact will
1:58
represent the start button
2:00
or the unlock
2:02
button and then this coil will represent
2:05
a memory bit so it will it will be M 0.0
2:10
so now we need to latch it
2:13
here I will assign address to it as same
2:17
as this m
2:18
0.0 after that when unlock button is
2:22
pressed and released M 0.0 gets through
2:25
and when M 0.0 gets through another
2:29
memory bit gets on so this will be M
2:34
0.0 and with that when unlock button is
2:37
press uh is released so this will be
2:41
unlock button so when it is released
2:43
then another memory bit gets through and
2:46
we will latch it here so I'll open the
2:49
uh sorry I will open the branch add a
2:52
normally open contact and connect it
2:54
like this so this will be M
2:58
0.1 and then so this m 0.0 is a memory
3:02
bit that is storing the data that unlock
3:04
button is being
3:07
released this m 0.0 stores the data that
3:11
it is being pressed and this m 0.1
3:14
stores the data that unlock button is
3:16
being released and then when it is being
3:19
released so M 0.01 gets through and then
3:23
again when unlock button is when unlock
3:27
button is again pressed so another Co
3:31
another uh memory bit gets through so
3:35
this will be M
3:38
0.2 and we will latch it here I will
3:41
connect it like this and this will be
3:46
m02 so this m 0.2 stores the data that
3:50
uh the unlock button is being pressed
3:53
second time and then I will insert a
3:55
normally open contact that represent
3:57
this m 0.3 m0
4:08
.3 sorry this is M 0.2 M 0.2 when it is
4:14
uh uh gets through and unlock button is
4:17
released so we'll use a normally Clos
4:19
contact for unlock button and another
4:23
coil another memory bit gets on so this
4:25
m 0.3 stores a data that unlock button
4:29
is being released second time so I will
4:33
uh open the branch at a normally open
4:35
contact and latch it like this so the
4:38
address for this normally open contact
4:40
will be M 0.3 so when M 0.3 gets through
4:44
that means when the push button is being
4:47
leased second time when it gets
4:49
through and unlock button is being
4:53
pressed third time so this will be
4:56
unlock button third time then one more
4:59
memory bit gets through this is M
5:02
0.4 and when it gets through we will
5:05
latch it here so I will open the branch
5:07
add a normally open contact and connect
5:09
it like this so this will be M
5:13
0.4 and then when this m.4 gets through
5:16
when it gets through is when the unlock
5:19
button is being pressed third time so M
5:22
0.4 gets through when the unlock button
5:24
is being pressed third time and when it
5:27
is released so this will be unlock
5:30
button when it is released another
5:32
memory bit gets through another coil for
5:35
a memory bit m0.5 when it gets
5:40
through then we will latch it here at
5:44
the normally open contact connect it
5:47
like this so this will be m0.5
5:51
and then when m0.5
5:54
is uh activated is true when it is
5:58
activated it's activated when unlock
6:00
button is being pressed third time and
6:02
released so this is pressed
6:06
released
6:08
pressed released and then pressed and
6:12
now it is being released here you can
6:15
see pressed M 0.1 stores it is being
6:19
released M 0.2 stores it is being
6:21
pressed second time and it is being
6:24
released second time it is being pressed
6:27
third time and it is being release third
6:30
time and then when m0.5 gets through and
6:35
unlog button is pressed four time so
6:40
this is unlock button when it is being
6:42
pressed four time then one more memory
6:45
bid gets true this is M
6:48
0.6 and when it gets
6:51
true it is storing the data that unlock
6:54
button is pressed four times so this
6:57
will be M 0.6
7:04
and then so the uh the unlock button is
7:07
being pressed four time that means door
7:11
has been opened four times then we will
7:14
use normally open
7:16
contacts like M 0.0 M
7:20
0.0 then
7:23
m0
7:27
2 second time then M 0.4 third time and
7:32
then one more normally open contact or
7:34
simply we can use only one
7:38
contact that is M 0.6 when it gets
7:42
through then the sanitization process
7:45
will start and this will be sanitization
7:49
and the sanitization process will uh go
7:53
on for only 10 seconds so for that we
7:56
will use a timer operation TP
8:01
e and the preset value will be 10
8:11
seconds so now I will start simulation
8:31
click on
8:34
load and then
8:37
finish after that I will start the
8:40
CPU and then start
8:42
monitoring after that I will switch to
8:45
the project
8:50
view let's create a new project here
8:53
click on
8:58
create e
9:31
after that I will go to simulation
9:33
tables and simulation table
9:37
one right click here and click on load
9:40
project
9:41
TXS as you can see
9:48
here when unlock button is being pressed
9:52
first time this m 0.0 gets through and
9:59
when it is released this m 0.1 gets
10:03
through and when it is being pressed her
10:07
uh sorry second time this m 0.2 gets
10:11
through and when it is being released
10:14
second time this m 0.3 gets
10:18
through so the door has been uh open two
10:23
times then again when it is pressed
10:26
third time the M 0.4 gets through and
10:30
when it is being released third time
10:33
this m0.5 gets through and when it is
10:36
being pressed four time that
10:40
means the sanitization process will
10:43
start this m 0.6 gets through when the
10:46
unlock button is being pressed four time
10:49
that means the door has been opened four
10:52
time and the sanitization process has
10:55
started it has sanitized the door it was
10:59
all about this example thank you for
11:02
watching
11:04
[Music]
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