technical ppt
TRANSCRIPT
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PL
C
&
SC
A
D
ASUBMITTED BY-
PRIYA SRIVASTAVA
090105801
E.I.E, VII Sem.
PLC COURSE CONTENTS
Digital Electronics Basics.
PLC Fundamentals.
PLC Hardware & Architecture.
Source & Sink Concepts.
Wiring Different field Devices to PLC.3/12/2015 2
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
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.
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
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
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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