seminar (plc)

7/28/2019 Seminar (Plc)

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WHAT IS INDUSTRIALAUTOMATION ??


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Today all production units are looking towardsmore production by utilising their existingassets and man power. This can happen when one can effectivelyutilize his present existence with modernfacilities. Which can be easily achieved byimplementing automation process in the

Industry.


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AUTOMATION APPLICATION Power generation :- Hydro, coal, gas, oil, shale,

Nuclear, wind, solar

Transmission :- Electricity, gas, oil

Distribution :- Electricity, water

Process :- paper, food, pharmaceutical,metal, processing, glass,

cement, chemical, refinery, oil & gas

Manufacturing :- Computer aided manufacturing(CAM), flexible fabrication, appliances,automotive,

Storage :- Elevator, harbor,deposits, luggage handling

Building :- Heat, ventilation, airconditioning (HVAC), accesscontrol, fire, energy supply, tunnels, highways,....

Transportation :- Rolling stock, street cars, sub-urban trains, busses, cars,ships, airplanes, satellites,...


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EXAMPLES OF AUTOMATED PLANTS.


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EXAMPLES OF AUTOMATED PROCESS


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PROGRAMMABLE LOGIC CONTROLLER (PLC)


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WHAT IS A PLC ?? A Programmable Logic Controller (PLC for

short) is simply a special computer device

used for industrial control systems. They are used in many industries such as

oil refineries, manufacturing lines,conveyor systems and so on.

Where ever there is a need to controldevices, the PLC provides a flexible way to"softwire" the components together.


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WHY PLC ?? PLCs were invented as replacements for automated

systems that would use hundreds or thousands ofrelays, timers, and drum sequencers.

Often, a single PLC can be programmed to replacethousands of relays.

Programmable controllers were initially adopted by

the automotive manufacturing industry, wheresoftware revision replaced the re-wiring of hard-wiredcontrol panels when production models changed.


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BENEFITS OF A PLC?

PLCs are extremely reliable. Persons understand PLC programming for

Displays / set points easily.

Vibration levels displayed clearly in Controlroom. Operators able to compare to other operating

parameters like voltage,current,freuency etc. Operators able to make intelligent machine

decisions by using plc. Installed Cost is same as any other transmitter

currently in service (pressure, temperature, flow,level, etc)


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BASICS OF A PLC.


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REQUIREMENT OF PLC OPERATION PC ( Personal Computer )

PLCs software to write the programme in

a progrmming language.

A physical PLC Unit (With a demo kit) to

test the output of the programme written

on above language.

Or a Simulator software to test the outputof the programme without the presence of

a physical PLC Unit.


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BASIC REQUIREMENTS FOR A PLC PROGRAMMING


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DIFFERENT PARTS OF A COMMON PLC


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PLC CAN ALSO BE CONNECTED WITH LAPTOPS


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DIFFERENT BRANDS PLCS

SiemensWago

Schneider Quantum


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A DETAILS OF SIEMENS PLC


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DIFFERENT SIEMENS PLCS

S7-300 (STANDALONE)


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Siemens S7-300 (PROFIBUS)


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SOFTWARES OF PLCSPLCS SOFTWARESSIEMENS SIMATIC MANAGER

MITSUBISHI GX DEVELOPER.

ABB CONTROL BUILDER.ALLEN BRADLEY RS VIEW.

GEFANUC SIMPLICITY,

VISA PRO.

MODICON CONCEPT.WANDER WAVE IN TOUCH.

INTELLUTION FIX 32.

SCHNEDIER PL7, UNITY. WAGO.


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PROGRAMMING LANGUAGES LADDER LOGIC

FBD LOGIC (FUNCTIONAL BLOCK DIAGRAM)

STL LOGIC(STATEMENT LIST)


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LADDER LOGIC EXAMPLE :

Start Stop Circuit:

In the example below, each time the operator pushes

button 0000 the out put lamp glow and will remain in on

position unless other wise the button 0001 is pressed but

when another push button 0001 turns the out put

becomes low.


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PLC WITH PHYSICAL DEVICES


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SOME EXAMPLES OFINDUSTRIES WHERE PLCSARE IMPLEMENTED INGRAPHICAL VIEW (SCADA)


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A PLANT ON SCADA BY RSVIEW32 SOFTWARE OF ALLAN

BRADLLY


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A TURBINE PLANT ON SCADA BY WINCC SOFTWARE OF

SIEMENS PLC


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conclusion:

Use of plc should be encouraged for

Reliability

Quality Reduction of cost

Safety


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REFERENCES:

Siemens plc handbook

Wikipedia

http://www.automation.siemens.com/mcms/automation/en/Pages/automation-technology.aspx?stc=wwiia302728


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Thank you!

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