123126804 scada
DESCRIPTION
Scada overviewTRANSCRIPT
![Page 1: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/1.jpg)
![Page 2: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/2.jpg)
![Page 3: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/3.jpg)
SCADA provides a complete pictorial overview of the entire plant process with necessary monitoring and control facilities at a central location
The control systems are always coupled with Man Machine Interface (MMI) or Supervisory Control and Data Acquisition Software
SCADA software is to be connected to PLC / PID / DCS systems which in turn are connected to field instruments
![Page 4: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/4.jpg)
Previously without SCADA software, an industrial process was entirely controlled by PLC, CNC , PID & micro controllers having programmed in certain languages or codes.
These codes were either written in assembly language or relay logic without any true animation that would explain the process running.
It is always easy to understand the status of the process if it is shown with some animations rather than written codes.
![Page 5: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/5.jpg)
It works like a supervisor who supervises the entire plant area, it also controls the process as well as it converts the data segments for storing process values i.e. level, pressure, switch positions, density, temperature, messages, etc
From a distant place if we want to run the process i.e. starting , stopping , opening and closing of field instruments, resetting alarms, as well as logging the various values; SCADA can help…
![Page 6: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/6.jpg)
Dynamic process graphic Real-time and Historical trending Alarms Recipe Management Security Device connectivity Script for logic development Database connectivity Networking
![Page 7: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/7.jpg)
Using this feature, one can develop graphics which can resemble the plant.
The graphics can include reactors, valves, pumps, agitators, conveyors as well as other equipment and machinery used in the plant.
The status of the equipment running/stopped can be shown using different colors/animation.
Typically the SCADA software will have many ready to use symbols for proper representation which can be used in any type of industry.
![Page 8: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/8.jpg)
This facility is used for representing the data in graphical form
Real-time data will plot the real-time value for fixed period of time while historical data will have historical data stored value which can be viewed on demand
Depending upon the storing capacity of the hard-disk one can specify the no of days the data can be stored
![Page 9: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/9.jpg)
Every plant needs proper monitoring and control of the process parameters
Alarms represent warnings of process conditions that could cause problems, and require an operator response
Generally alarms are implemented by using the lamps or hooters in field but in SCADA it can be represented using animation.
In many SCADA software, four type of alarm limits are used ie HI, HIHI, LOW, LOW LOW
![Page 10: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/10.jpg)
In many cases we use the same plant for manufacturing different product range. For example an oil blending plant can manufacture power oil, transformer oil, automobile oil.
The recipe management is facility used for maintain various recipes of different products and implement it on the process
The recipe can be stored in a single server and it can be fetched by any client server from any area to run the process
![Page 11: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/11.jpg)
Every SCADA software has various levels of security for securing the application by avoiding unauthorized access
Depending upon the access level given the operator/engineers is allowed to do the task. In most of the cases, operators are allowed only to operate the plant while maintenance engineers can do the application modifications
The security can be given for individual as well as for groups
![Page 12: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/12.jpg)
Every control hardware has its own communication protocol for communicating with different hardware/software. Some of the leading communication protocol include Modbus, Profibus, Ethernet, Dh+, DH485, Devicenet, Controlnet.
The SCADA software needs device driver software for communication with PLC or other control hardware.
More the driver software available better is the device connectivity. Most of the SCADA software used in the industry have connectivity with most of the leading control system.
![Page 13: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/13.jpg)
In many plants, it is important to download the real-time information to the MIS. In this case the database connectivity is must.
Many SCADA software don’t have their own database. Hence for storage and reporting they use third party database like MS Access or SQL
![Page 14: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/14.jpg)
Script is a way of writing logic in SCADA software. Every SCADA software has its own instructions and way of writing program.
Using scripts, one can develop complex applications. You can create your own functions to suit the process requirement and execution.
Various types of scripts make project execution simpler for programmer.
![Page 15: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/15.jpg)
In many applications, we have to use more than one SCADA software/operator stations. This can be achieved by taking the SCADA node on network.
In many cases Ethernet TCP/IP is commonly used for networking.
In certain cases the SCADA software use proprietary networking protocols for networking.
![Page 16: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/16.jpg)
To start with the SCADA software were used for monitor and controlling the parameters locally.
![Page 17: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/17.jpg)
Subsequently the modems were used to monitor the data over a distance
![Page 18: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/18.jpg)
The latest advancement in the SCADA technology includes the data monitoring on wide area network using modems, Ethernet tcp/ip as well as
GPS system
![Page 19: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/19.jpg)
Wonderware : InTouch Intellution : iFix (Earlier Fix DMACS) Allen Bradley : RS View (Earlier Control
View) Siemens : WinCC (Earlier Coros LS /B ) GE Fanuc : Cimplicity Indusoft : I W S Movicon : Progea
![Page 20: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/20.jpg)
Chemical Plants
![Page 21: 123126804 scada](https://reader033.vdocuments.site/reader033/viewer/2022061220/54bb17d34a795978628b45ad/html5/thumbnails/21.jpg)
Reservoir Management