Source & Sink Concept in PLC । What is Sourcing & Sinking in PLC । PLC मैं Sink और Source कनेक्शन ?

Industrial Solutions

26 Nov 202208:10

Summary

TLDRThe video script from the YouTube channel 'Industrial Solutions' introduces a vital concept of PLC (Programmable Logic Controller) sourcing and sinking logic. It explains how connections are made inside a PLC and the importance of understanding field devices' output, whether they are NPN or PNP type sensors, and their impact on the circuit's completion. The tutorial aims to clarify these concepts for viewers, ensuring they grasp the fundamentals of PLC operations, including how to select the right field devices and interpret their outputs correctly.

Takeaways

😀 The video is about PLC (Programmable Logic Controller) sourcing and sinking concepts.
🔌 The video discusses the importance of understanding connections inside a PLC and how outputs are determined.
💡 The presenter explains the concept of a common terminal in PLC and its dependency on the star.
🔋 The video demonstrates how to connect a 24-volt input to the PLC and the significance of the input section.
🔌 The importance of zero voltage (ground) in completing the circuit is highlighted, and how it affects the PLC's operation.
📈 The video clarifies the difference between MP (masterpiece) slip and common terminal, emphasizing the need to check for 24-volt supply.
🔍 The types of sensors used in the machine, whether MP and type sensors, are determined based on the output voltage.
🛠️ The video explains the concept of current flow from high potential to low potential and how it affects the PLC's operation.
🔗 The presenter discusses how sourcing and thinking are connected and how field output is selected based on the current flow.
🤔 The video encourages viewers to clear any doubts related to the concept, emphasizing its importance in understanding PLC operations.

Q & A

What is the main topic of the video?
-The main topic of the video is about the sourcing and sinking concepts in PLC logic.
Why is understanding sourcing and sinking important for PLC?
-Understanding sourcing and sinking is important for PLC because it helps in correctly selecting the field devices and ensuring the proper flow of current in the circuit.
What does the video discuss about the connection inside a PLC?
-The video discusses how connections are made inside a PLC, specifically how the input section and output devices are connected and interact with each other.
What is the significance of the common terminal in the input section?
-The common terminal in the input section is significant as it determines the potential of the circuit. It is connected to the source of the input voltage.
How does the video explain the concept of sourcing?
-The video explains sourcing as the process where the current flows from a high potential (source) to a low potential (load), and it is crucial for the proper functioning of the PLC circuit.
What is the role of the field devices in the context of sourcing and sinking?
-Field devices play a crucial role in sourcing and sinking as they determine the type of sensors (MP and PT) based on the voltage supplied to the common terminal.
What happens when the input section receives zero volts?
-When the input section receives zero volts, the circuit is completed, and the output from the field devices will be zero volts, completing the circuit.
How does the video clarify the concept of sinking?
-The video clarifies sinking as the flow of current from the load towards the source, which is the opposite of sourcing.
What is the importance of understanding the flow of current in PLC?
-Understanding the flow of current in PLC is important as it helps in determining the correct operation of the system, ensuring that the current flows from the source to the load as intended.
What advice does the video give for those who have doubts about the concept?
-The video advises viewers to clear their doubts about the concept, emphasizing that it is an important topic in PLC and encourages them to like, share, and subscribe to the channel for more information.

Outlines

00:00

🔌 Understanding PLC Sourcing and Sinking Concepts

This paragraph discusses the fundamental concepts of sourcing and sinking in PLCs (Programmable Logic Controllers). The speaker introduces the topic by welcoming viewers to the channel and emphasizing the importance of understanding how connections are made within PLCs and the significance of output devices. The explanation begins with a practical example, setting up a 24-volt input section and connecting it to a common terminal, which is dependent on the standard of the scenario. The speaker clarifies the process of how a circuit is completed when zero voltage is received from the field devices, leading to the completion of the circuit due to the 24-volt supply from the PLC. The paragraph concludes by explaining how to determine the type of field devices based on the output, whether they are NPN or PNP type sensors, and how they connect to the master PLC, directly or through a common terminal, depending on the voltage supply.

05:03

🔧 Clarifying Pump Type Sensors and Current Flow in PLCs

In this paragraph, the focus shifts to the retirement of zero board and the importance of recognizing pump type sensors when zero board is not present. The speaker explains that if the sensors are of the pump type, they will require a 24-volt supply, and the output of these sensors will also be 24 volts, thus clarifying the two concepts discussed earlier. The paragraph further delves into the concept of current flow from high potential to low potential, illustrating how the current flows towards the load. The speaker uses the first case as an example to explain how the current flows towards the low potential, indicating what happens when the PLC is supplied with 24 volts. The explanation includes the idea of how the field device thinks in terms of current flow and how the PLC checks for sinking by maintaining a universality between sourcing and thinking. The paragraph ends with an invitation for viewers to clear any doubts related to this concept, emphasizing its importance and encouraging feedback, likes, shares, and subscriptions.

Mindmap

Keywords

💡Industrial Solutions

Industrial Solutions refers to the set of strategies, technologies, and processes used to address specific challenges in industrial settings. In the context of the video, it likely pertains to the solutions provided for sourcing and sinking concepts within PLC systems, which are crucial for the functioning of industrial machinery and processes.

💡PLC (Programmable Logic Controller)

A Programmable Logic Controller is an industrial digital computer used for automation of electromechanical processes, such as control of machinery on factory assembly lines. The video discusses the importance of PLC in understanding the logic behind sourcing and sinking concepts, which are fundamental in industrial automation.

💡Sourcing and Sinking

Sourcing and sinking are terms used in electronics to describe the ability of a digital circuit to provide current (sourcing) or absorb current (sinking). In the video, these concepts are crucial for understanding how inputs and outputs are managed in PLC systems, affecting the overall functionality of industrial devices.

💡Field Devices

Field devices are the physical devices in an industrial control system that interact with the process being controlled. The video script mentions field devices in relation to how their outputs are connected and managed within the PLC system, emphasizing their importance in the industrial process.

💡Input Section

The input section of a PLC refers to the part of the system that receives signals from field devices. In the video, the input section is discussed in the context of how it interacts with the common terminal and how it affects the circuit completion when zero voltage is received.

💡Common Terminal

The common terminal in a PLC is a point where multiple inputs or outputs can be connected. The video explains how the common terminal is crucial for connecting inputs and how it affects the circuit's completion, illustrating its role in the overall system.

💡Output Devices

Output devices in a PLC system are the devices that carry out actions based on the PLC's control signals. The video discusses how the output devices are connected and how their functioning is dependent on the PLC's logic, highlighting their role in the automation process.

💡Sensors

Sensors are devices that detect physical changes in the environment and convert them into electrical signals. In the video, sensors are mentioned in relation to their types (MP and PT sensors) and how they are connected to the PLC system, affecting the system's response and control.

💡Current Flow

Current flow describes the direction in which electric current moves through a circuit. The video script discusses how current flow from high potential to low potential is crucial for understanding the functioning of PLC systems and the role of sourcing and sinking in this process.

💡Voltage

Voltage is the electric potential difference between two points. In the context of the video, voltage, particularly 24 volts, is discussed as a critical parameter for the operation of PLC systems and field devices, affecting their ability to source or sink current.

💡Pump Type Sensors

Pump type sensors are a specific type of sensor used in industrial settings, often for monitoring fluid levels or flow rates. The video mentions pump type sensors in the context of their output being 24 volts, which is essential for their integration into the PLC system.

Highlights

Welcome back to the Industrial Solutions YouTube channel for another video on PLCs.

Today's video is about the most important concept of sourcing and sinking within PLCs.

Understanding how connections are made inside a PLC is crucial.

The video provides an overview of the top view of a terminal.

The common terminal concept is explained, which depends on the star configuration.

A case study is introduced to demonstrate the concept with a 24-volt input.

The importance of the input section and its common terminal in completing the circuit is discussed.

The output from the field devices is explained, and how it completes the circuit.

Different types of field devices are identified, such as NAN (normally open) and NAM (normally closed).

The concept of current flow from high potential to low potential is introduced.

The selection of sensors based on the type of field device is explained.

The importance of checking the master fuse for 24-volt supply is highlighted.

The difference between MP (master point) and common terminal is clarified.

The concept of sourcing and thinking about how current flows is discussed.

The video clarifies the difference between sourcing and sinking in the context of PLCs.

The importance of understanding the current flow direction for proper PLC operation is emphasized.

The video concludes with a call to action for viewers to like, share, and subscribe.