This document discusses the implementation of a metro rail system using programmable logic controllers (PLCs) and supervisory control and data acquisition (SCADA). It describes how PLCs are used for automation and control functions, while SCADA is used for high-level supervision, data collection, and presentation. The document outlines the components, functions, and block diagram of a metro rail system that uses PLCs to interface with sensors and machinery, while SCADA is used for monitoring train locations to help avoid accidents and collisions.

1. IMPLEMENTATION OF
METRO RAIL USING PLC
AND SCADA
Under the Guidance of Presented by:
G. Sujatha Y.Divya
Dept of EEE (17251D5415)

2. Contents
• Introduction
• PLC Block Diagram
• SCADA Controlling Operation
• SCADA System Components
• Operation of Metro Rail using PLC and
SCADAAutomation
• Advantages, Disadvantages and Future
Scope of Metro Rail using PLC and
SCADA

3. Introduction
• Metro Rail system implemented in
underground as well as flyover system.
• The two components used for the
automation of the Metro Rail systems
are
1) Programmable Logic Controllers
(PLC). &
2) Supervisory Control and Data
Acquisition (SCADA) .

4. Programmable Logic Controllers
(PLC)
• A PLC is a user-friendly, microprocessor
based specialized computer that carries
out control functions of many types and
level of complexity.
• Its purpose is to monitor crucial process
parameters and adjust process operations
accordingly.
• Hence it is used for the automation of
metro rail systems.

5. PLC Block Diagram

6. SCADA
• SCADA stands for Supervisory Control and
Data Acquisition.
• SCADA is a control system architecture that
uses computers, networked data
communications and graphical user interfaces
for high-level process supervisory
management, but uses other peripheral devices
such as Programmable Logic Controllers to
interface to the process plant or machinery.

7. SCADA IN CONTROLLING
OPERATION

8. SCADA System Components

9. Functions of SCADA
• Data Acquisition
• Data Communication
• Data Presentation
• Human Machine Interface
• Control

10. Functional Block Diagram of Metro
Rail using PLC and SCADA

11. Advantages
• Train locations can be identified and controlled after
interruption of power supply
• Collision of trains can be avoided.
• Accidents are avoided.

12. Disadvantages
• IR Sensors senses only particular direction.
• Wiring Connectivity is more from one sensor to other
sensor.
• This system gives information to station not the
engine operator.

13. Conclusion
• By employing PLC automation can be achieved.
• SCADA is used to track the location of Train to avoid
the accidents.
• Speed can be reduced by the sensors and Inter
Passage Door opening is provided for safety of
passengers.

14. Future scope
• By implementing PLC and SCADA in
metro rail automation the train accidents
can be prevented and many lives would
be saved.