PLC structure and explanation

1. PLC Programmable Logic Control
Professional Course
Instructor:
Fayyaz Hussain
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2. Course agenda
 Introduction
 Historic background
 PLC venders
 Our Fast track course purpose
 Comparison b/w Controllers in industrial point of view
 PLC Structure and Circuits
 PLC in sink and sourcing
 PLC basic Connection
 PLC Programming
 LogixPro Simulator
 Labs on LogixPro
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3. PLC Venders
 Venders: Manufacturers of PLC
Round about 100 PLC venders in the world
 But at the Top ten categories are
1. Siemens: Siemens has approximately 30 to 40 per cent market share
2. Rockwell Automation / Allen Bradley: Its market capitalization is $25
billion and its annual revenues of around $7 billion.
3. Mitsubishi Electric: Market cap of around $28 billion and annual revenue
was $37 billion in 2017
4. Schneider Electric: Market cap of around $55 billion, and generates
annual revenues of more than €27 billion.
5. ABB: Its $50 billion market cap, $28 billion annual revenues.
6. Honeywell Process 7. Omron 8. Hitachi Industrial Equipment Systems
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4. Market Share
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5. Relay Operation cct
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6. PLC View
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7. Comparison PLC v/s Microcontroller
 Microcontroller:
 Single Chip (No Helping cct)
 Pipelining Execution cycle
 No Protection cct
 No option Onboard
programming
 Not efficient on High speed
processing
 No I/O statues at run time
 PLC:
 Full featured (With I/O Modules)
 Interrupt based Execution Cycle
 Protected by Opto-coupler
 On Board Programming
 Efficient at high speed
 I/Os status shows by LEDs at run
time
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8. Parameters to Chose PLC
 Note your System Task requirements
 I/Os Requirement
 Memory Capacity
 Speed (Scan time I/Os)
 I/Os Types
 Electrical requirement
 Communication requirement
 Interfaces
 Software
 Business Practices
 Trainings and Services
 After all these parameters you can chose right PLC modal and right vender
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9. Block diagram of PLC
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10. Input Module
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11. Input Module Circuit
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12. Output Module
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13. Output Module Circuit
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14. Relay types & PLC Relay
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15. Semiconductor switches (Relay)
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16. Memory
 ROM
Read only memory
 RAM
Random Access memory
 Registers
Input, Outputs, User memory
 Counter / Timer
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17. CPU (Central Processing Unit)
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18. Programming devices
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19. PLC Internal Hardware
FX1s14MR
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20. www.elektronicsgarage1.blogspot.com
0101engr@gmail.com
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