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SEMINAR

ON

SCADASUMBITTED BY:

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AUTOMATION-DEFINATION

Delegation of human control function totechnical equipments

to increase production

to reduce cost

to reduce manpower

to improve safety working conditions

to reduce power consumption

to improve quality

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TYPES OF AUTOMATION

AUTOMATION

SCIENTIFIC

AUTOMATION

INDUSTRIAL

AUTOMATION

OFFICE

AUTOMATION

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LAYOUT OF INDUSTRIAL

AUTOMATION

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ROLE OF COMPUTERS

When an automated machine is placed under

the control of a computer a large number of

operations can be performed. The computer

can analyze a vast number of sensory inputs

from a system and decide which of many

responses it should make.

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SMALL COMMUNITIES

ENDLESS CHALLENGES

Remoteness of site

Limited financial resources

Limited staff Limited access to technology and supplies

Limited access to training

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ADVANTAGES

REPLACING

HUMAN OPERATOR

ECONOMY

IMPROVEMENT

MAKING TASK

BEYOND HUMAN CAPABILITIES

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SUPERVISORY CONTROL AND

DATA ACQUISITION(SCADA)

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WHAT IS SCADA

SCADA stands forSupervisory Control And

Data Acquisition.

SCADA refers to a system that collects data

from various sensors at a factory, plant or in

other remote locations and then sends this data

to a central computer which then manages and

controls the data.

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TYPES OF PROCESSES

INDUSTRIAL

PROCESSES

INFRASTRUCTURE

PROCESSES

FACILITY

PROCESSES

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WHAT IS DATA ACQUISITION

Data acquisition is the process of retrievingcontrol information from the equipment whichis out of order or may lead to some problem or

when decisions are need to be taken accordingto the situation in the equipment. So thisacquisition is done by continuous monitoringof the equipment to which it is employed. The

data accessed are then forwarded onto atelemetry system ready for transfer to thedifferent sites.

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HARDWARE ARCHITECTURE

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SCADA AS A SYSTEM

TYPICAL SCADA SYSTEM

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SUBSYSTEMS OF SCADA SYSTEM

Human-Machine Interface is the apparatuswhich presents process data to a humanoperator, and through this, the human operator

monitors and controls the process. Remote Terminal Units connecting to sensors

in the process, converting sensor signals to

digital data and sending digital data to thesupervisory system.

http://en.wikipedia.org/wiki/User_interfacehttp://en.wikipedia.org/wiki/Remote_Terminal_Unithttp://en.wikipedia.org/wiki/Data_acquisitionhttp://en.wikipedia.org/wiki/Data_acquisitionhttp://en.wikipedia.org/wiki/Data_acquisitionhttp://en.wikipedia.org/wiki/Data_acquisitionhttp://en.wikipedia.org/wiki/Remote_Terminal_Unithttp://en.wikipedia.org/wiki/User_interfacehttp://en.wikipedia.org/wiki/User_interfacehttp://en.wikipedia.org/wiki/User_interface

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Programmable Logic Controllerused as

field devices because they are moreeconomical, versatile, flexible, and

configurable than special-purpose RTUs.

Communication infrastructure connectingthe supervisory system to the Remote Terminal

Units

http://en.wikipedia.org/wiki/Programmable_Logic_Controllerhttp://en.wikipedia.org/wiki/Communicationhttp://en.wikipedia.org/wiki/Remote_Terminal_Unithttp://en.wikipedia.org/wiki/Remote_Terminal_Unithttp://en.wikipedia.org/wiki/Remote_Terminal_Unithttp://en.wikipedia.org/wiki/Remote_Terminal_Unithttp://en.wikipedia.org/wiki/Communicationhttp://en.wikipedia.org/wiki/Programmable_Logic_Controller

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SYSTEM COMPONENTS OF SCADA

SYSTEM

MULTIPLE REMOTE

TERMINAL UNIT

CENTRAL HOST

COMPUTER

COMMUNICATIONINFRASTRUCTURE

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FEATURES OF SCADA

REAL TIME AND HISTORICAL TREND

The trend play very important role in the process

operation. If your batch fails or the plant trips, you

can simply go to the historical trend data and do the

analysis. You can have better look of the parameters

through the trend.

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ALARMS

have a very critical role in automation.Generally we have alarm states for each

inputs/outputs. . Most of the SCADA software

support four types of alarms like LOLO,LO,HI

and HIHI.

RECIPE MANAGEMENT

When you have different products to

manufacture, you just have to load the recipe

of the particular product.

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SECURITY

You can allocate certain facilities or features tothe operator, process people, engineering dept

and maintenance dept.

DEVICECONNECTIVITY

SCADA software should have connectivity to

the different hardware used in automation.

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USEFULNESS OF SCADA

Production department

Quality department

Maintenance department Enterprise information

Engineering department

Manufacturing department

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GENERAL TERMINOLOGY

TAG

ANALOG TAGS

DISCRETE TAGS SYSTEM TAGS

STRING TAGS

TOUCH PUSH BUTTONS

COLOUR LINKS

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VISIBILITY

BLINK

ORIENTATION

DISABLE

VALUE DISPLAY LINK

PERCENTAGE FILL

APPLICATION SCRIPT

WINDOW SCRIPT

KEY SCRIPT CONDITION SCRIPT

APPLICATION SECURITY

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Flow control and continuous totalizer

Transportation belt

application

Speed or mass control withadjustable PID

Weight totalization of

product transported

1% accuracy with 1s

sample rate and 1 to 10

speed max/min ratio

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Packaging Weigher

One scale dosing of a preset load for 99 recipes

Dosing with an intermediate hopper or within

the packaging operation

Automatic correction of dose values

Tuning and production alternated cycles

Automatic in-flight error correction at the

end of tuning cycle

Rate optimization at every cycle

Adaptable reset frequency Average and standard deviation calculation at

the end of tuning cycle

Printing during production cycle

Rate example : 1200 bags of 25 kg per hour (on

one scale)

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WHAT IS INTOUCH

Wonderware InTouch provides a single

integrated view of all your controls and

information resources. Intouch enables

engineers, supervisors, operators and managersto view and interact with the working of entire

operation through graphical representations of

their production processes.

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MAJOR PROGRAMS OF INTOUCH

INTOUCH

INTOUCHAPPLICATION

MANAGER

WINDOWMAKER WINDOWVIEWER

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WONDERWARE SCADA SOFTWARE

Easy-to-use, easy to implement

Easy configuration, simplified maintenance

High security and availability Virtually unlimited scalability

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PRACTICAL USES OF SCADA

SCADA used as a control mechanism for

chemical plants, electricity generation, electric

power transmission, electricity distribution,

district heating.

Control mechanisms are described in Process

Control.

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ADVANTAGES

CHEAPER

CONTINOUS

OPERATION

RELIABLE

IMPROVES MAINTAINANCE,

OPERATION,

CUSTOMER SERVICEFEW OPERATORS CONTROL LARGE NO. OF

INDIVIDUAL ASSETS

PROVIDE RAPID RESPONSE TO EMERGENCIES

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DISADVANTAGES

TROUBLED

ALARMS

LACK OF TRAINED

PERSONS

INITIAL CAPITAL INVESTMENT

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SCADA MANUFACTURER AND

NAME OF THE SOFTWARE

WONDERWARE Intouch

ALLEN BRADLEY R.S View

SIEMENS Wincc

MODICON MorieconG E FANUC Cimplicity

INTELLUSION I Fix

KPIT Ashtra

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BENEFITS OF SCADA

Long distance monitoring

Long distance training

Protection against terrorism/vandalism-alarm Data management (engineering and

operations)

Automated operations with real time control

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CONCLUSION

SCADA is a control system with

More interfaces and efficient storage

More record or device oriented configuration But system wide configuration tools are

needed

Are less expensive than DCS, but offerdifferent functionality than DCS

And finally various applications

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THANK YOU