Pratique du Shadowing: Introduction to PLC | Siemens PLC Training Course - Apprendre l'anglais à l'oral avec la vidéo
Création de la leçon...
1
Hello everyone.
2
Today we are going to learn about PLC.
3
Let's start with its introduction.
4
So PLC, it is Programmable Logic Controller.
5
Okay.
6
Generally what is controller?
7
A controller is used to control some operations fine
8
that is what controller meant to it's right okay
9
so plc is a dedicated controller specially used in a industry okay
10
so plc are used in every aspect of industry to expand
11
and enhance its production for its production only mainly plc is very introduced in the industry okay
12
so in generally the definition of plc can be it is a unit of hardware used to control
13
and automate the industrial process.
14
Fine.
15
So let me share the evolution of PLC image.
16
So this is the evolution of PLC.
17
So once upon a time we were into the manual control.
18
Okay.
19
So can you find the image over here a man who
20
is operating a hand wall by you know looking into the
21
temperature gauge okay he's very nearer to the furnace according to
22
the temperature range he is going to change the hand wall
23
okay do you think it is really safe for a human
24
being who is always nearer to the furnace obviously no
25
and the second thing as a point of as a industry point of view obviously we are losing a precision
26
and accuracy over here.
27
Fine.
28
So, this is the main problem in a manual control.
29
Okay.
30
That's what we have shifted to the hardware control.
31
Okay.
32
So, what is this hardware control?
33
This is nothing but a relay control system.
34
Okay.
35
So, older automated systems were used, hundreds and thousands of relays.
36
Okay.
37
So, obviously, we know relay, right?
38
It is a, you know, electromagnetic switch.
39
Okay.
40
For a simple, to make a simpler, you know, simple control system, we are in need of more wires to make it possible okay
41
so a single plc unit can replace the hundred
42
and thousands of relay control release okay
43
that is the main thing that's what we have faced
44
so much of difficulty in this hardware control
45
so one of the main disappointments over here is it is really tough to find where the fault occurs
46
if for example in a simple control system there is one error in a wiring okay
47
and it's really hard to find
48
because we are into thousands of wires okay there is one
49
statement in the control industry they will tell the relay control system as
50
if the fault is happening means it is five hours to find the fault
51
and five minutes to fix it okay
52
that is one of the main disadvantage in this hardware control
53
system that's what we have moved into the electronics control
54
which is nothing but a pcb designing and all okay so there was a problem with the troubleshooting and the cost also.
55
Okay.
56
That's what we have shifted to the PLC control.
57
Okay.
58
PLC is a specialized computer used to control the machine and the process.
59
Okay.
60
It using the programmable memory to store the instruction and execute the functions that include on -off control,
61
timing, function and counting function, sequencing, processing, logical, arithmetic and data handling functions.
62
Okay.
63
So, the design of most PLC is similar to that of other computers, normal or personal computers.
64
Okay.
65
But it is specially for the manufacturing process equipments and machinery.
66
Okay.
67
Unlike an office computer, it can be, it has been designed to operate in the industrial environment.
68
Obviously, industry means controller need to run for 24 into 7.
69
Right.
70
So PLC can withstand those temperature.
71
Okay.
72
Because it is equipped with special input and output interface and control programming language.
73
Right.
74
Yeah.
75
Let us see the architecture of PLC.
76
yeah so yeah before
77
that i would like to introduce him he is a dick
78
richard dick marley who is the father of plc okay in 1960s he has introduced this plc
79
and he is a father of plc let's move PLC architecture
80
so as I have already told it is similar to our personal computer right
81
so our personal computer obviously it is having
82
a processor correct now so it is having a processor which is a brain of the control system
83
okay so before
84
that let's have a look into this power supply okay it is used to power the cpu
85
and other field devices right it is a source it is giving the source to all the devices okay
86
and let's have a look into this input
87
and output module what is this means it is act as a bridge
88
which is connecting our input
89
and output devices with the cpu okay is used to give the communication between io devices
90
that means a field instruments like push buttons switchers transmitters control valve solenoid valve vft
91
so these are the field instruments
92
so it is making a bridge between those field instruments
93
and the cpu okay and can you find the optical isolation over here
94
okay it is a isolation barrier okay to electrically isolate the
95
internal components of cpu from the io terminals plc employs an isolation okay
96
so and coming back to the cpu it is a brain of the plc
97
and it is having a processor used to perform logic and controlling the communication among the modules.
98
Okay.
99
User can enter the desired circuit in the ladder logic program.
100
Okay.
101
Which is by using this programming device.
102
Okay.
103
The processor accepts the input data from various input devices
104
and execute the program which is stored in the program memory and send the signal to the output device.
105
Okay.
106
So and this one programming device.
107
This may be a handled device in our older days
108
and now we are using pcs and laptop where we are installing our plc software
109
and we will be writing the program into it by using the communication portals we are downloading
110
and uploading the program into one from the plc okay
111
so these are the main components we have in the plc
112
and apart from this additional components we may have a operator interface device to allow the data entry
113
and data monitoring by the operators
114
and the second one is communication adapters for remote IOS so
115
that the central controller you know can be connected to remote sensor
116
and actuators okay and the third one is the network interface
117
which is allow the interconnecting of PLCs with other controllers
118
and the distributed control system okay so the above three are the additional components
119
but these five are the very important components that you can find in all the PLCs.
120
Okay.
121
So, let's move on to the advantages of PLC.
122
Okay.
123
Let me share one more image.
124
Okay.
125
So, advantage of PLC.
126
So, why we are using PLC over the PLC, you know, previous control systems.
127
Okay.
128
Let's see the first point which is increasing the reliability.
129
Okay.
130
So here once the program has been written into the PLC and is tested it can easily download to the PLC.
131
Okay.
132
Since all the logic is contained in the PLC memory there is no chance of making the logical error.
133
That is a one of the main advantages in a PLC.
134
Okay.
135
This program takes the place of much of the external wiring
136
that would normally be required for controlling of the process okay
137
hard wiring is still required to connect the field devices
138
but it is very less comparing to the relay control system okay
139
so that's what it is increasing the reliability okay the second point we can see is it's more flexible okay
140
so more flexible in the terms like it is not really easy to wire
141
and rewire the circuit correct na but in a plc changing a program will be very easy.
142
End user can modify the program in the field or
143
if desired security can be provided by future such as key locks and passwords.
144
Okay, it is more flexible.
145
And the third point we are having is a communication capability.
146
Okay, so PLC can communicate with other PLC and other computer equipment to perform some functions.
147
Okay, it can easily communicate with the SCADA systems, HMIs and other PLC and all.
148
Okay.
149
And also it is used for the uploading and downloading of programs.
150
Okay.
151
So comparing to the previous control system here, the communication capability is having more features.
152
Okay.
153
The next one is faster response time.
154
Okay.
155
It operates in a real time, which means the event take place in the field results in the execution of the output.
156
okay
157
and the next is easier to troubleshoot it is having a
158
led indication okay to easily find out the faulty i o
159
to fix the problems user can display the control program
160
and the monitor and watch it in a real time as it exhibits
161
okay by using all these we are finding more advantages in the plc okay
162
so this is all about the introduction of plc let you know meet you in the next session thank you
✨ Vidéo recommandée
C12
175 phrases
What is a PLC and how does it work?
Business EnglishUniversity StudentsWorking Adults
C1132 phrases
Petroleum - 06 - Drilling Fluid Laboratory
Business EnglishUniversity StudentsWorking Adults
C11
339 phrases
Introduction to HPLC - Lecture 1: HPLC Basics
Business EnglishUniversity StudentsWorking Adults
C12
70 phrases
How to Download your TIA Portal PLC Application to S7-PLCSIM (TIA Portal Course)
Business EnglishUniversity StudentsWorking Adults
C11
64 phrases
What is SCADA?
Business EnglishUniversity StudentsWorking Adults
C141 phrases
🚨 Most organizations don't fail ISO/IEC 27001 because they don't understand the standard...
Business EnglishUniversity StudentsWorking Adults
C124 phrases
Sofeast PCB Video Series Introduction
Business EnglishUniversity StudentsWorking Adults
C11
276 phrases
PLC Programming #4: Functions, Function Blocks & Organization Blocks Explained
Business EnglishUniversity StudentsWorking Adults
C11
443 phrases
Functional-Oriented Documentation in Automation - Eplan & IEC 81346 Explained
Business EnglishUniversity StudentsWorking Adults
C11
258 phrases
What is Accounting ? An Introduction to Accounting.
Business EnglishUniversity StudentsWorking Adults
C11
29 phrases
VMM I O-INSPECT I Curve
Business EnglishUniversity StudentsWorking Adults
C11
22 phrases
Introduction To Networking - Different Types Of Networks | Networking Fundamentals Part 2 (revised)
Business EnglishUniversity StudentsWorking Adults
Vocabulaire et conseils d’expression pour cette leçon
Cette leçon d’expression orale de niveau C1 s’appuie sur la vidéo « Introduction to PLC ». Les mots qui reviennent le plus souvent : plc, device, program, controller, computer. Cette vidéo contient 162 phrases et 1508 mots à répéter en shadowing. La partie parlée dure 9:56. Le locuteur parle à un rythme naturel d’environ 152 mots par minute, proche d’une conversation courante. Seuls 81 % des mots font partie des 3 000 mots les plus courants en anglais, le vocabulaire est donc exigeant.
Vocabulaire clé de cette vidéo
Les 15 mots les plus avancés de la vidéo, avec leur prononciation et leur sens :
| Mot | Prononciation | Sens |
|---|---|---|
| processor nom | /ˈpɹɑˌsɛsɚ/ | processeur |
| isolation nom | /ˌaɪsəˈleɪʃən/ | isolement |
| automate verbe | /ˈɔ.təˌmeɪt/ | automatiser |
| programmable adjectif | /pɹəʊˈɡɹæməbəl/ | programmable |
| furnace nom | /ˈfɝnɪs/ | chaudière |
| module nom | /ˈmɑd͡ʒul/ | module |
| reliability nom | fiabilité | |
| execute verbe | /ˈɛksɪˌkjuːt/ | exécuter, mettre à mort |
| upload verbe | /ˈʌpˌloʊd/ | téléverser, télécharger |
| specially adverbe | /ˈspɛʃəli/ | particulièrement, spécialement |
| capability nom | /ˌkeɪ.pəˈbɪl.ɪ.ti/ | capacité |
| actuator nom | /ˈæk.tjuː.eɪ.tə(ɹ)/ | actionneur |
| arithmetic nom | /æɹɪθˈmɛtɪk/ | arithmétique |
| electrically adverbe | /ɪˈlɛk.tɹɪk.li/ | électriquement |
| interconnect verbe | /ˌɪn.tə.kəˈnɛkt/ | interconnecter |
Les verbes à particule que vous entendrez
| Mot | Sens |
|---|---|
| find out verbe | découvrir, savoir |
La grammaire de cette vidéo
Les structures que le locuteur utilise le plus, avec les mots exacts de la vidéo :
| Structure | Dans la vidéo |
|---|---|
| « Used to » used to + verbe — une habitude ou un état passé qui n’est plus vrai | used to control · used to perform |
| Voix passive be + participe passé — l’accent est mis sur ce qui arrive, pas sur qui le fait | has been designed · is equipped · is stored |
| Present perfect have/has + participe passé — une action passée qui compte encore maintenant | have shifted · have faced · have moved |
| Propositions relatives who / which + proposition — une précision sur une personne ou une chose | processor which is · program which is · point which is |
Prononciation à surveiller
- Les sons « th »: arithmetic /æɹɪθˈmɛtɪk/, withstand /wɪðˈstænd/
- Les sons « sh » et « zh »: isolation /ˌaɪsəˈleɪʃən/, specially /ˈspɛʃəli/, specialize /ˈspɛʃəˌlaɪz/, troubleshoot /ˈtɹʌbl̩ˌʃuːt/, precision /pɹɪˈsɪʒ.ən/
- Mots longs — placez bien l’accent: isolation /ˌaɪsəˈleɪʃən/, programmable /pɹəʊˈɡɹæməbəl/, capability /ˌkeɪ.pəˈbɪl.ɪ.ti/, actuator /ˈæk.tjuː.eɪ.tə(ɹ)/, arithmetic /æɹɪθˈmɛtɪk/
Les sons difficiles pour les francophones :
- /tʃ/ et /dʒ/ — à ne pas adoucir en « ch » et « j »: module /ˈmɑd͡ʒul/, disadvantage /ˌdɪsədˈvæntɪd͡ʒ/, gauge /ˈɡeɪd͡ʒ/
- /r/ anglais — langue recourbée, sans frotter la gorge: relay /ˌɹiˈleɪ/, processor /ˈpɹɑˌsɛsɚ/, nearer /ˈnɪɹɚ/, programmable /pɹəʊˈɡɹæməbəl/, actuator /ˈæk.tjuː.eɪ.tə(ɹ)/
Comment s’entraîner avec cette vidéo
- Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
- Commencez à la vitesse 0,75×, répétez phrase par phrase, puis revenez à la vitesse normale quand cela devient facile.
- Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme processor, isolation, automate.
Qu'est-ce que la technique du Shadowing ?
Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.