Практика Shadowing: Sinking and Sourcing PLC Inputs Explained | What is the Difference? - Изучайте разговорный английский по видео
Создание урока...
1
In this video, we're going to talk about syncing and sourcing PLC digital input modules and how they're connected to field devices.
2
We will be using a Siemens digital input module with this part number.
3
If you want to order this module online, you can head on over to the RealPars Marketplace or simply click on this link here.
4
The two types of PLC input modules are digital and analog.
5
A digital input module accepts inputs from digital devices such as switches and proximity sensors.
6
The input module will detect one of the two possible conditions of an input device, open or closed.
7
For example, a push -button switch is a digital device and can either be open or closed.
8
We will examine how the input module detects the input device condition later in this video.
9
The focus of our video is on digital input modules.
10
Okay, let's go.
11
As we said earlier, a digital input module will detect one of the two possible conditions of an input device, open or closed.
12
So, the question is, how does the input module know if the input device is open or closed?
13
All we need to do is construct a closed circuit containing the input device,
14
the PLC input module, and a 24 volt DC power supply.
15
If the switch is open, there is 0 volts at the module input terminal.
16
If the switch is closed, there is a positive 24 volts at the module input terminal.
17
The input module will detect either a no voltage or voltage condition at the input.
18
These voltage conditions represent the open or closed conditions of the switch.
19
These voltage or non -voltage conditions are represented by ones and zeros in the PLC memory.
20
Every input device is connected the same way.
21
If you have a 64 input module, it's possible to have 64 separate circuits.
22
We'll show you more examples later.
23
Alright, now that we know how the digital input module determines the input device condition,
24
let's talk about the current flow between the power supply and the input module.
25
There is a current flow, but it is very small and usually under 10 milliamps.
26
Notice in our example that the current is flowing into the PLC module.
27
Depending on the type of PLC input module and how it's connected with the input device, the current could flow in or out of the module.
28
That's where the terms sinking and sourcing come into the picture.
29
Let's spend some time clearing up any misconceptions you might have about these terms.
30
When we talk about sinking and sourcing, it's all about defining the direction of conventional current flow between two devices.
31
Think of it this way, current is flowing between device number 1 and device number 2.
32
Ask yourself, which direction is the current flowing?
33
The current is flowing from device number 1 to device number 2.
34
Therefore, we say device number 1 is sourcing the current, and device number 2 is sinking the current.
35
Okay, what if the current is flowing from device number two to device number one?
36
In this case, we say device number two is sourcing the current, and device number one is sinking the current.
37
In every situation where you have a current flow between two devices, one of the devices will be sourcing and the other will be sinking.
38
PLC vendors manufacture both sinking and sourcing digital input modules.
39
Let's explore what they are and how they differ.
40
Remember what we discussed earlier, it's all about the direction of conventional current flow.
41
Let's have a look at two devices with current flowing between them.
42
One device is a PLC input module, and the second device is a push -button switch.
43
Based on the connection polarity, the syncing module will have the current flowing into it from the switch.
44
Ok, let's do that again, but this time our PLC input module will be a sourcing module.
45
Based on the connection polarity, the sourcing module will have the current flowing out of it.
46
Current can flow in either direction through a push -button switch because it is a passive device and not polarity -dependent.
47
There are many active digital input devices used in industry today that are polarity -dependent.
48
They must be wired correctly or they will not work at all.
49
These active devices will be labeled as either syncing or sourcing.
50
You can learn more about active sensors in our other videos.
51
We'll direct you there at the end of this video.
52
If you recall, earlier we said that when there are two devices with current flowing between them, one device will be sourcing and one will be syncing.
53
If the input device is a sourcing type, the PLC input module must be a syncing type.
54
If the input device is a syncing type, the PLC input module must be a sourcing type.
55
Adding confusion to already murky concepts,
56
some vendors refer to syncing and sourcing input devices as NPN and PNP.
57
You can learn more about NPN and PNP in our other videos.
58
We'll direct you there at the end of this video.
59
Here's something to remember.
60
An NPN device is a syncing device.
61
A PNP device is a sourcing device.
62
The Siemens Digital Input Module 6ES7521 -1BH50 -0AA0 is a sourcing type.
63
If you want to order this PLC module to use in your project, you can find the link in the video description.
64
Let's connect a push -button switch and a syncing proximity sensor to two of the inputs.
65
The current is flowing out of the PLC module because it is a sourcing type.
66
Let's have a look at a syncing module.
67
The Phoenix Contact Digital Input Module AXLSEDI16 -1 is a syncing type.
68
You can find the link to order this PLC module in the video description as well.
69
Let's connect a push -button switch and a sourcing proximity sensor to two of the inputs.
70
The current is flowing into the PLC module because it is a syncing type.
71
If you want to learn more, you might want to review two of our other videos called
72
How to Wire Discrete DC Sensors to PLC Part 2 and What is a Transistor Working Principles.
73
You can find the links to these videos in the description.
74
Ok, let's review what we've covered in this video.
75
A digital input module will detect one of the two possible conditions of an input device, open or closed.
76
Digital input modules detect either a no voltage or voltage condition at the input.
77
A sinking input module will have the current flowing into it.
78
A sourcing input module will have the current flowing out of it.
79
PLC vendors offer both syncing and sourcing digital input modules.
80
An NPN device is a syncing device.
81
A PNP device is a sourcing device.
82
Want to learn PLC programming in an easy -to -understand format
83
and take your career to the next level? head on over to realpars .com
📺 Тот же канал
C11
What is SCADA?
Business EnglishUniversity StudentsWorking Adults
C12
Motor Control Methods Explained
Business EnglishUniversity StudentsWorking Adults
C1What is an Electrical Control Panel? (PLC Panel Basics)
Business EnglishUniversity StudentsWorking Adults
C1What is a Control Valve?
Business EnglishUniversity StudentsWorking Adults
✨ Рекомендуемое видео
C13
238 предложений
Wiring Allen Bradley Compactlogix Sinking Inputs and Sourcing Outputs
Business EnglishUniversity StudentsWorking Adults
C12
30 предложений
Inside the Upstream Process: How Oil & Gas Is Found
Business EnglishUniversity StudentsWorking Adults
C11
19 предложений
Types of Proximity Sensors! #automation #engineering #science #robotics #electronics
Business EnglishUniversity StudentsWorking Adults
C16
6 предложений
What is Logistics? The Basics
Business EnglishUniversity StudentsWorking Adults
C11
7 предложений
Diodes Explained - The basics how diodes work working principle pn junction
Business EnglishUniversity StudentsWorking Adults
C14
28 предложений
Comparing Low Voltage Vs. Medium Voltage Equipment on Solar Sites
Business EnglishUniversity StudentsWorking Adults
C11
162 предложений
Introduction to PLC | Siemens PLC Training Course
Business EnglishUniversity StudentsWorking Adults
C12
182 предложений
Inside The Hidden Bottleneck In The AI Chip Boom
IELTS PrepBusiness EnglishUniversity Students
C11
506 предложений
Analyzing Statements of Cash Flows 1 (2025 CFA® Level I Exam – FSA – Learning Module 4)
Cambridge Exam PrepBusiness EnglishUniversity Students
C11
114 предложений
BAS Bootcamp: Day 6 Setting up IO Internally
Business EnglishUniversity StudentsWorking Adults
C11
235 предложений
The GELU, SiLU and SwiGLU activation functions, clearly explained!!!
Business EnglishUniversity StudentsWorking Adults
Лексика и советы по произношению к этому уроку
Этот урок разговорной практики построен на видео «Sinking and Sourcing PLC Inputs Explained». Чаще всего повторяются слова: input, device, module, current, sourcing. В этом видео 83 предложений и 1146 слов для шедоуинга. Речь длится 8:30. Говорящий держит ровный темп — около 135 слов в минуту, удобный для шедоуинга. Только 74% слов входят в 3000 самых частых слов английского языка, поэтому лексика сложная.
Ключевая лексика этого видео
15 слов из видео, которые стоит выучить, с произношением и значением:
| Слово | Произношение | Значение |
|---|---|---|
| input существительное | /ˈɪnpʊt/ | вклад |
| module существительное | /ˈmɑd͡ʒul/ | мо́дуль |
| sink глагол | /ˈsɪŋk/ | тону́ть, утону́ть |
| voltage существительное | /ˈvəʊltɪd͡ʒ/ | напряже́ние, вольта́ж |
| detect глагол | /dɪˈtɛkt/ | обнару́живать, обнару́жить |
| connect глагол | /kəˈnɛkt/ | свя́зывать, связа́ть |
| sensor существительное | /ˈsɛn.sɚ/ | се́нсор |
| proximity существительное | /pɹɒkˈsɪm.ɪ.ti/ | бли́зость, сосе́дство |
| vendor существительное | /ˈvɛn.dɚ/ | продаве́ц, продавщи́ца |
| circuit существительное | /ˈsɝ.kɪt/ | кругооборо́т, цикл |
| terminal существительное | /ˈtɚmɪnəl/ | аэровокза́л, термина́л |
| dependent прилагательное | /dɪˈpɛndənt/ | зави́симый, подчинённый |
| conventional прилагательное | /kənˈvɛnʃənl̩/ | общепри́нятый, конвенцио́нный |
| format существительное | /ˈfɔːɹ.mæt/ | форма́т |
| refer глагол | /ɹɪˈfɜː/ | ссыла́ться, сосла́ться |
Фразы, которые стоит повторять
Короткие законченные фразы из видео, которые пригодятся в повседневном разговоре:
- We'll show you more examples later.
- Let's explore what they are and how they differ.
- Let's have a look at a syncing module.
Произношение, на которое стоит обратить внимание
Говорящий использует 6 сокращённых и редуцированных форм, например we'll, they're, we're. Произносите их коротко, так, как слышите.
- Звуки «sh» и «zh»: conventional /kənˈvɛnʃənl̩/, confusion /kənˈfjuːʒən/, misconception /ˌmɪs.kənˈsɛp.ʃən/
- Длинные слова — следите за ударением: proximity /pɹɒkˈsɪm.ɪ.ti/, polarity /pəˈlæɹɪti/, misconception /ˌmɪs.kənˈsɛp.ʃən/
Звуки, трудные для русскоязычных:
- Звонкие согласные в конце слова — не оглушайте их: voltage /ˈvəʊltɪd͡ʒ/, depend /dɪˈpɛnd/, passive /ˈpæs.ɪv/, analog /ˈænəlɔɡ/
Как заниматься с этим видео
- Прослушайте всё видео один раз молча и выпишите незнакомые слова.
- Повторяйте предложение за предложением на обычной скорости, пока ваш ритм не совпадёт с ритмом говорящего.
- Запишите себя и сравните с оригиналом, обращая внимание на такие слова, как input, module, sink.
Что такое техника Shadowing?
Shadowing — это научно обоснованная техника изучения языка, изначально разработанная для подготовки профессиональных переводчиков и популяризированная полиглотом доктором Александром Аргуэльесом. Метод прост, но эффективен: вы слушаете аудио на английском от носителей языка и немедленно повторяете вслух — как тень, следующая за говорящим с задержкой в 1–2 секунды. В отличие от пассивного прослушивания или грамматических упражнений, Shadowing заставляет мозг и мышцы рта одновременно обрабатывать и воспроизводить реальные речевые паттерны. Исследования показывают, что это значительно улучшает точность произношения, интонацию, ритм, связную речь, понимание на слух и беглость речи — что делает его одним из самых эффективных методов для подготовки к IELTS Speaking и реального общения на английском.