technical ppt
TRANSCRIPT
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PL
C
&
SC
A
D
ASUBMITTED BY-
PRIYA SRIVASTAVA
090105801
E.I.E, VII Sem.
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PLC COURSE CONTENTS
Digital Electronics Basics.
PLC Fundamentals.
PLC Hardware & Architecture.
Source & Sink Concepts.
Wiring Different field Devices to PLC.3/12/2015 2
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SCADA COURSE CONTENTS
Introduction to SCADA Software.
Creating new SCADA project.
Creating & editing elementary graphic display.
Attaching controls to graphic objects.
Real time & historical trends using alarms & events.
Application of scripts communication with PLC
Communication with excel.3/12/2015 3
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AUTOMATION
Automation is a step beyond mechanization.
Automation is the use of control systems &
information technologies to reduce the need for human work in the production of
goods & services.
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Automation Components
Sensor for sensing physical conditions.
Transmitters.
Control Systems.
Output Devices.
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Programmable Logic Controllers
A PLC is a solid state / industrial computer that
performs discrete or sequential logic in a factory
environment.
It was originally developed to replace mechanical
relays, timers, counters.
A sequence of instructions is programmed by the user
to the PLC memory. Its purpose is to monitor
crucial process parameters and adjust process
operations accordingly.
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PLC Saves
Material cost
Installation cost
Troubleshooting
Labor cost
By
Reduced wiring &
associated errors
Less spaceNo moving
parts –rugged
Value added benefits
Reliability
Flexibility
Advanced Function
Communication
Speed
Diagnostics
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Packaging
Material Handling
Power Generation
Security Systems
Paint Lines
Bottling & Canning
Machining
Automated assembly
Water treatments
HVAC/Building Automation
Industry
Cement
Automobile
Chemicals
Plastics
APLLICATIONS
Any application in any industry that
requires electrical control.
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VARIOUS BRANDS OF PLCS
Allen Bradley( USA)
Siemens (Germany)
Modicon (France)
Mitshubishi (Japan)
GE Fanuc (USA)
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Programming/
Communication
device
Input
CircuitsCentral
Processing
Unit(C.P.U)
Output
devices
Memory
Program data
Power Supply
Optical Isolation Optical Isolation
ARCHITECTURE
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PLC SCAN
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Programming Languages
Ladder Diagram (LD)
Functional block Diagram (FBD)
Structured Text (ST)
Instruction List (IL)
Sequential Functional Chart
(SFC)
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PLC PROGRAMMING SOFTWARE
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Supervisory Control &Data Acquisition
(SCADA) Systems
SCADA systems
used to monitor and control a plant or
equipment in industries such as:
telecommunications, water and waste
control.
energy, oil and gas refining and
transportation
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PURPOSE
A SCADA SYSTEM
Gathers information from Remote Terminal
Units (RTUs) and/or (PLCs), and the central host and the operator
terminals(such as where a leak on a
pipeline has occurred).
Transfers the information back to a
central site, then alerts the home
station that a leak has occurred
carries out necessary analysis and control,
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What do SCADA Provide?
Dynamic Process Graphics
Basic SCADA functionality
Real time &historical trend
Alarms
Recipe Management
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Data Server
Field Bus
PLC’sData Server
Configuration of SCADA Systems
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