13-02-2013, 09:11 AM
Development & Implementation of a SCADA System
[attachment=50611]
Introduction (What Is SCADA?)
Stands for supervisory control And data acquisition.
SCADA systems are used in industrial processes: steel making, power generation (conventional and nuclear) and distribution.
There Are 4 Components In the SCADA System.
SCADA Components
Field Instrumentation.
Sensors, devices to control.
Remote Terminal Units.
RTU Vs. PLC
Communications Network.
Equipment needed to transfer data to and from different sites
Central Monitoring Station
Collecting information gathered by the remote stations to generate the necessary action
Disadvantages Of Relay Systems
Relays used only for on/off control.
Complicated control systems
Expensive System.
System takes up much floor and space.
Control relays are power- hungry, heat generation.
Any change in control program requires the rewiring of relays.
For complicated control systems, it is difficult to troubleshoot and locate the faults.
Advantages Of SCADA systems
Easily programmed or reprogrammed
Easy maintained (self diagnostic).
Capability to do arithmetic function.
The ability to communicate with other controller or a master host computer.
PLCs. were able to move past simple on/off control to more complex schemes as PID control.
Applications Of SCADA
Almost every business in the manufacturing sector and many in the service sector
Aerospace
Bottling and Canning
Chemicals Plants
Petroleum, Petrochemical
[attachment=50611]
Introduction (What Is SCADA?)
Stands for supervisory control And data acquisition.
SCADA systems are used in industrial processes: steel making, power generation (conventional and nuclear) and distribution.
There Are 4 Components In the SCADA System.
SCADA Components
Field Instrumentation.
Sensors, devices to control.
Remote Terminal Units.
RTU Vs. PLC
Communications Network.
Equipment needed to transfer data to and from different sites
Central Monitoring Station
Collecting information gathered by the remote stations to generate the necessary action
Disadvantages Of Relay Systems
Relays used only for on/off control.
Complicated control systems
Expensive System.
System takes up much floor and space.
Control relays are power- hungry, heat generation.
Any change in control program requires the rewiring of relays.
For complicated control systems, it is difficult to troubleshoot and locate the faults.
Advantages Of SCADA systems
Easily programmed or reprogrammed
Easy maintained (self diagnostic).
Capability to do arithmetic function.
The ability to communicate with other controller or a master host computer.
PLCs. were able to move past simple on/off control to more complex schemes as PID control.
Applications Of SCADA
Almost every business in the manufacturing sector and many in the service sector
Aerospace
Bottling and Canning
Chemicals Plants
Petroleum, Petrochemical