Prática de Shadowing: Introduction to PLC | Siemens PLC Training Course - Aprenda a falar inglês com vídeo
Criando lição...
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
✨ Vídeo recomendado
C12
175 frases
What is a PLC and how does it work?
Business EnglishUniversity StudentsWorking Adults
C1132 frases
Petroleum - 06 - Drilling Fluid Laboratory
Business EnglishUniversity StudentsWorking Adults
C11
339 frases
Introduction to HPLC - Lecture 1: HPLC Basics
Business EnglishUniversity StudentsWorking Adults
C12
70 frases
How to Download your TIA Portal PLC Application to S7-PLCSIM (TIA Portal Course)
Business EnglishUniversity StudentsWorking Adults
C11
64 frases
What is SCADA?
Business EnglishUniversity StudentsWorking Adults
C141 frases
🚨 Most organizations don't fail ISO/IEC 27001 because they don't understand the standard...
Business EnglishUniversity StudentsWorking Adults
C124 frases
Sofeast PCB Video Series Introduction
Business EnglishUniversity StudentsWorking Adults
C11
276 frases
PLC Programming #4: Functions, Function Blocks & Organization Blocks Explained
Business EnglishUniversity StudentsWorking Adults
C11
443 frases
Functional-Oriented Documentation in Automation - Eplan & IEC 81346 Explained
Business EnglishUniversity StudentsWorking Adults
C11
258 frases
What is Accounting ? An Introduction to Accounting.
Business EnglishUniversity StudentsWorking Adults
C11
29 frases
VMM I O-INSPECT I Curve
Business EnglishUniversity StudentsWorking Adults
C11
22 frases
Introduction To Networking - Different Types Of Networks | Networking Fundamentals Part 2 (revised)
Business EnglishUniversity StudentsWorking Adults
Sobre esta aula
Nesta lição, você vai praticar compreensão oral em inglês enquanto aprende sobre controladores lógicos programáveis (PLCs). O vídeo explica a evolução do controle industrial, desde o manual até o uso de PLCs, e você terá a chance de treinar a escuta de termos técnicos e frases cotidianas em contextos reais. Além de expandir seu vocabulário, vai praticar a pronúncia e a fluência com dicas de shadowing específicas para o ritmo do vídeo.
Vocabulário e frases chave
- Programmable Logic Controller (PLC): Controlador lógico programável, dispositivo usado na automação industrial.
- Relay control system: Sistema de controle por relés, antigo método com muitos fios e menos precisão.
- Industrial process: Processo industrial, atividades de produção em fábricas.
- Precision and accuracy: Precisão e exatidão, qualidade de ser correto e consistente.
- Fault: Falha, problema em um sistema (ex: "find the fault" = encontrar a falha).
- Shadowing: Técnica de imitação de fala, repetindo frases logo após ouvir.
Dicas de prática
O vídeo tem um ritmo conversacional e claro, perfeito para treinar o shadowing em inglês. Aqui estão algumas dicas:
Primeiro, assista o vídeo uma vez sem parar para entender o contexto. Depois, reproduza pequenos trechos (30 segundos) e repita imediatamente, tentando igualar o tom e a velocidade do narrador. Isso ajuda a melhorar a fluência e a pronúncia.
Se encontrar termos técnicos, como "PLC" ou "relay control system", repita-os várias vezes para fixar a pronúncia. Lembre-se: o shadowspeak não é sobre ser perfeito, mas sobre se acostumar a falar no mesmo ritmo que se ouve.
Por fim, grave sua própria voz e compare com o vídeo. Você vai notar como melhora a cada tentativa! Essa prática de conversação em inglês com shadowing vai te ajudar a se sentir mais confiante em situações reais.
Gramática neste vídeo
As estruturas que o falante mais usa, com as palavras exatas do vídeo:
| Estrutura | No vídeo |
|---|---|
| “Used to” used to + verbo — um hábito ou estado do passado que não é mais verdade | used to control · used to perform |
| Voz passiva be + particípio passado — o foco está no que acontece, não em quem faz | has been designed · is equipped · is stored |
| Present perfect have/has + particípio passado — uma ação passada que ainda importa agora | have shifted · have faced · have moved |
| Orações relativas who / which + oração — informação extra sobre uma pessoa ou coisa | processor which is · program which is · point which is |
O que é a Técnica de Shadowing?
Shadowing é uma técnica de aprendizado de idiomas com base científica, originalmente desenvolvida para o treinamento de intérpretes profissionais. O método é simples, mas poderoso: você ouve áudio em inglês nativo e repete imediatamente em voz alta — como uma sombra seguindo o falante com 1-2 segundos de atraso. Pesquisas mostram melhora significativa na precisão da pronúncia, entonação, ritmo, sons conectados, compreensão auditiva e fluência na fala.