Plc scada by vishal kumar from niec delhi
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Transcript of Plc scada by vishal kumar from niec delhi
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PRESENTATION ON PLC AND SCADA
Presented by Vishal BTECH(EEE) IIIrd year Northern India Engineering College Delhi-110053
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Contents What is PLC? History of PLC Major components of PLC Operational sequence of PLC Ladder logic Advantages Disadvantages Application Introduction of scada What is SCADA? History of scada Scada software Leading company of SCADA Element of scada Where is scada used
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(PROGRAMMABLE LOGIC CONTROLLER)
PLC SYSTEM
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What is PLC?
Plc is a semiconductor device. Which is use for controlling Any industrial process.
Plc is combination of hardware and software.
PLC is a digital computer designed for multiple inputs and outputs arrangements.
A PLC is a example of real time system.
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Block Diagram Of PLC
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Input & Output Module
Input module output module• Push button
motor • Sensors
transistor• Toggle button
display
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History of PLC PLC was introduced in year 1960’s
First PLC was designed and developed by MODICON as a relay replacer for general motors.
Earlier it was a machine with thousands of electronic parts.
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Major components of a common PLC
POWER SUPPLY
I/O MODULE
PROCESSORPROGRAMMING DEVICE
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PLC operation sequence
Self test
Input scan
Logic solve /scan
Output scan
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Types of communication in PLC
Serial communica
tion
Parallel communica
tion
bit by bit transmissio
nWhole data transmissio
n
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Classification of Allen Bradely PLCSmall micro logix Medium Large series SLC series Micrologix 1000 SLC 5/01
Compact logix Micrologix 1100 SLC 5/02
Control logix Micrologix 1200 SLC 5/03
Flex logix Micrologix 1400 SlC 5/04
Micrologix 1500 SLC 5/05
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Data Files & Identifiers Data files Identifiers Input I Output O Status S2 Binary B3 Timer T4 Counter C5 Registor Control R6 Integer Registor N7
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Addressing Format Of PLC
Input Format Identifier : slot number . Word address/bit address
Output FormatIdentifier : slot number . Word address/bit address
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Ladder LogicThe ladder logic is the oldest programming language for PLC.It is well suited to express combinational logics.The main ladder logic symbol represent the elements.
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Element of ladder logics
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Programming ExampleLadder logic program for start/stop of motor :
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Advantages & Disadvantages of PLCAdvantage of plc: Reliability. Reduced space. Energy saving. High speed of operation. Shorter project time.
Disadvantages of PLC: Fixed ckt operation. Limited design and cost of operation. PLCs manufactures offer only closed architectures.
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Application:Few examples of industries where PLC is
used:1) Robots manufacturing and control.2) Car park control.3) Food processing.4) Materials handling5) Machines tools.6) Conveyer system.
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(SUERVISORY CONTROL AND DATA ACQUISITION)
SCADA SYSTEM
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What is SCADA?supervisory Control & Data Acquisition
Supervisory
Operator’s , engineer’s, supervisor’s, etc
Control
Monitoring Limited Telemetry Remote/local
Data Acquisition
Access and acquire information or data from the equipment Sends it to different sites through telemetry Analog/digital
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History of SCADA Egyptian supervisory First half of the 20th
century Development from
telemetry system Weather predictions Rail road tracks Two way system 1960s idea for
supervisory 1970s radio system
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SCADA software
SCADA software manufactures
Intellection (fix 32)
Iconic ( geneis32 V7.0)
Wonder ware (InTouch)
Citect ( SCADA 5.42)
National instruments
(lookout SCADA)
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Properties in INTOUCH Software1) Value display2) Location3) Visibility4) Percentages filling5) Object size6) Blink7) Orientation8) Fill colour9) Line colour10) Show window/hide window
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Features in SCADA
1) Window script2) Recipe management3) Real time trends4) Secuirty5) Alarms6) Data base connectivity
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Hardware of SCADA
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Block Diagram Of SCADA
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where is SCADA used? Main SCADA application: Water and wastewater Power Oil and gas Research facilities Transporation Security system Communication control
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Conclusion
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THANK YOU