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Training Seminar 
On 
INDUSTRIAL AUTOMATION 
PRESENTED BY: Chandramaul Sen 
Electrical Engineering 
3611605 
Department of...
Introduction to 
Organisation
Advance Technology, Chandigarh 
Advance Technology, Chandigarh is an ISO 9001:2008 
Certified Company deals in the field ...
PROGRAMMABLE 
LOGIC 
CONTROLLER
PLC 
The PLC is an assembly of solid state 
digital logic elements design to make 
logical decisions and provide outputs....
Programmable Logic Controllers 
Sequential logic solver 
PID Calculations. 
Advanced Subroutines 
BIT Operations. 
Da...
Programmable Logic Controllers 
Applications : 
 Machine controls, Packaging, Material handling, similar Sequential 
task...
P L C Components(Hardware) 
Central Processing Unit 
(CPU) 
Input Modules 
Output Modules 
Power Supply 
Bus system 
...
Central Processing Unit 
It is a micro-controller based circuitry. The CPU 
consists of following blocks : 
Arithmetic Lo...
Input module 
These modules act as interface between real-time status of process 
variable and the CPU. 
 Analog input m...
OOuuttppuutt mmoodduullee 
These modules act as link between the CPU and the output 
devices in the field. 
 Analog outp...
I/O MODULE SPECIFICATION 
 COST 
 INPUT VOLTAGE 
 ON-STATE INPUT VOLTAGE RANGE 
 AMBIENT TEMP RATING 
 INPUT DELAY – ...
Power Supply 
The power supply gives the voltage required for electronics 
module (I/O, CPU, memory unit) of the PLC from...
Advantage of PLC Over Relay 
RELAY PLC 
1-More wiring 1-Less wiring 
2-Changes difficult 2-Changes easy 
3-More power 3-Lo...
PLC Cycle 
Sense the Input 
Process the Logic 
Give Output 
Inputs CPU Outputs
Configuration of PLC : Allen Bradley 
CPU 
Power Supply 
I/O Modules
PLC Programming Standards 
 Ladder Diagram 
 Function Block Diagram 
 Sequential Function Chart 
 Structured Text Lang...
PLC Selection Criteria 
Cost of hardware, 
I/O requirement 
CPU memory 
 Spare parts& Maintenance, 
Reliability, 
Fl...
PLC : Protocol 
• It is a set of rules for data transmission when PLC is 
connected to network 
• RS-232 (Recommended stan...
PLC Applications 
Program of Bottle Filling Plant
Program of Bottle Filling Plant
Program of Blinking of 2 Lamps
Supervisory Control and 
Data Acquisition 
(SCADA)
SCADA 
It is a purely software package that is positioned on 
top of hardware to which it is interfaced, in general 
via ...
Hardware Architecture 
One distinguishes two basic layers in a SCADA system: the "client layer" 
which caters for the man...
Hardware Architecture
Advantages & Disadvantages of 
SCADA
Advantages 
• Increase Efficiency 
- Minimize Fault Response Time 
- Reduce Planned Downtimes 
- Isolate and Precisely Loc...
Disadvantages 
• Cost is high to install and maintain. 
• Additional system failure modes and can 
be a security loophole.
Thank You
Plc & scada seminar
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Plc & scada seminar

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Plc & scada seminar

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Plc & scada seminar

  1. 1. Training Seminar On INDUSTRIAL AUTOMATION PRESENTED BY: Chandramaul Sen Electrical Engineering 3611605 Department of Electrical Engineering GEETA INSTITUTE OF MANAGEMENT AND TECHNOLOGY, KURUKSHETRA, INDIA
  2. 2. Introduction to Organisation
  3. 3. Advance Technology, Chandigarh Advance Technology, Chandigarh is an ISO 9001:2008 Certified Company deals in the field of Hardware Development, Embedded Products Development, Security & Surveillance and Engineers Training Programs. Advance Technology offer various Technical Education solutions, Products & Development tools to Engineering colleges, Universities, research organizations. Advance Technology has developed a number for private as well government organizations.
  4. 4. PROGRAMMABLE LOGIC CONTROLLER
  5. 5. PLC The PLC is an assembly of solid state digital logic elements design to make logical decisions and provide outputs. PLC is programmed interface between input sensor &output device.
  6. 6. Programmable Logic Controllers Sequential logic solver PID Calculations. Advanced Subroutines BIT Operations. Data Transfer. Text Handling.
  7. 7. Programmable Logic Controllers Applications :  Machine controls, Packaging, Material handling, similar Sequential task as well as Process control Advantages of PLC :  They are fast and designed for the rugged industrial environment.  They are attractive on Cost-Per-Point Basis.  These Devices are less Proprietary ( E.g.. Using Open Bus Interface.)  These Systems are upgraded more Capabilities with dedicated PID and Ethernet Modules. Disadvantages of PLC :  PLC one time cost is high  To maximize PLC performance a number of IO Modules to be added.  PLC hold only one copy of program.
  8. 8. P L C Components(Hardware) Central Processing Unit (CPU) Input Modules Output Modules Power Supply Bus system Rack(Rail)
  9. 9. Central Processing Unit It is a micro-controller based circuitry. The CPU consists of following blocks : Arithmetic Logic Unit (ALU), Program memory Process image memory (Internal memory of CPU) Internal timers ,counters and Flags . CPU performs the task necessary to fulfill the PLC functions. i.e. Scanning I/O bus traffic control, Program execution, Peripheral and External device communication, data handling and self diagnostics.
  10. 10. Input module These modules act as interface between real-time status of process variable and the CPU.  Analog input module : Typical input to these modules is 4-20 mA, 0-10 V  Ex : Pressure, Flow, Level Tx, RTD (Ohm), Thermocouple (mV) Digital input module : Typical input to these modules is 24 V DC, 115 V AC, 230 V AC  Ex. : Switches, Pushbuttons, Relays, pump valve on off status
  11. 11. OOuuttppuutt mmoodduullee These modules act as link between the CPU and the output devices in the field.  Analog output module : Typical output from these modules is 4- 20 mA, 0-10 V  Ex : Control Valve Digital output module : Typical output from these modules is 24 V DC, 115 V AC, 230 V AC  Ex. : Solenoid Valves, lamps, Actuators, Pump valve on off control
  12. 12. I/O MODULE SPECIFICATION  COST  INPUT VOLTAGE  ON-STATE INPUT VOLTAGE RANGE  AMBIENT TEMP RATING  INPUT DELAY –  NOMINAL OUTPUT VOLTAGE  MAX O/P CURRENT  ELECTRICAL ISOLATION –
  13. 13. Power Supply The power supply gives the voltage required for electronics module (I/O, CPU, memory unit) of the PLC from the line supply. The power supply provides isolation necessary to protect the solid state devices from most high voltage line spikes. As I/O is expanded, some PLC may require additional power supplies in order to maintain proper power levels.
  14. 14. Advantage of PLC Over Relay RELAY PLC 1-More wiring 1-Less wiring 2-Changes difficult 2-Changes easy 3-More power 3-Low power 4-More maintenance 4-Solid state reliability 5-Difficult to expand 5 -Easy to expand
  15. 15. PLC Cycle Sense the Input Process the Logic Give Output Inputs CPU Outputs
  16. 16. Configuration of PLC : Allen Bradley CPU Power Supply I/O Modules
  17. 17. PLC Programming Standards  Ladder Diagram  Function Block Diagram  Sequential Function Chart  Structured Text Language
  18. 18. PLC Selection Criteria Cost of hardware, I/O requirement CPU memory  Spare parts& Maintenance, Reliability, Flexibility& Integration of High-level Application. Compatible Protocol
  19. 19. PLC : Protocol • It is a set of rules for data transmission when PLC is connected to network • RS-232 (Recommended standard) • RS-485 • MPI(Multi point Interface) • Profibus • DH(Data Highway) • Ethernate • Controlnet
  20. 20. PLC Applications Program of Bottle Filling Plant
  21. 21. Program of Bottle Filling Plant
  22. 22. Program of Blinking of 2 Lamps
  23. 23. Supervisory Control and Data Acquisition (SCADA)
  24. 24. SCADA It is a purely software package that is positioned on top of hardware to which it is interfaced, in general via Programmable Logic Controllers (PLCs), or other commercial hardware modules.  SCADA systems are used not only in industrial processes: e.g. steel making, power generation (conventional and nuclear) and distribution, chemistry, but also in some experimental facilities such as nuclear fusion. The sizes of such plants are range from a few 1000 to several 10 thousands input/output (I/O) channels.
  25. 25. Hardware Architecture One distinguishes two basic layers in a SCADA system: the "client layer" which caters for the man machine interaction and the "data server layer" which handles most of the process data control activities. The data servers communicate with devices in the field through process controllers. Process controllers, e.g. PLCs, are connected to the data servers either directly or via networks or field buses that are proprietary (e.g. Siemens H1), or non-proprietary (e.g. Profibus). Data servers are connected to each other and to client stations via an Ethernet LAN. The data servers and client stations are NT platforms but for many products the client stations may also be W95 machines.
  26. 26. Hardware Architecture
  27. 27. Advantages & Disadvantages of SCADA
  28. 28. Advantages • Increase Efficiency - Minimize Fault Response Time - Reduce Planned Downtimes - Isolate and Precisely Locate Faults • Maximize Profitability - Reduce Failures / Unplanned Downtimes - Reduce Operations Overhead - Reduce Manpower Requirement - Maximize (Achieve Expected) Equipment Life Time • Maximize Safety - Public Safety - Site Safety
  29. 29. Disadvantages • Cost is high to install and maintain. • Additional system failure modes and can be a security loophole.
  30. 30. Thank You

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