21803474-SCADA-PPT (1)
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Transcript of 21803474-SCADA-PPT (1)
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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