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작성자허니버터 조회 6회 작성일 2020-09-27 07:47:09 댓글 0

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What is SCADA?

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The SCADA acronym stands for Supervisory Control and Data Acquisition.

A SCADA system is a collection of both software and hardware components that allow supervision and control of plants, both locally and remotely.

The structural design of a standard SCADA system starts with Remote Terminal Units (RTUs) and/or Programmable Logic Controllers (PLCs).

As you know, RTUs and PLCs are microprocessors that communicate and interact with field devices such as valves, pumps, and HMI’s.

That communication data is routed from the processors to the SCADA computers, where the software interprets and displays the data allowing for operators to analyze and react to system events.

Before SCADA, plant personnel had to monitor and control industrial processes via selector switches, push buttons, and dials for analog signals.

This meant that plants had to maintain personnel on site, during production, in order to control the processes.

As manufacturing grew and sites became more remote in nature, relays and timers were used to assist in the supervision and control of processes.

With these devices employed, fewer plant personnel were required to be on site in order to oversee and control operations.

While relays and timers did provide some level of automation, the panels required for these devices took up valuable real estate, troubleshooting was a nightmare, and reconfiguring was difficult at best.

These issues, in conjunction with the need to grow even larger industrial plants, helped to facilitate the birth of automation.

Controlling industrial plants via processors became a reality in the 1950s. Gas and oil, utilities, and manufacturing were major users of these new technologies and supervisory control.

Another decade later the term SCADA was used to describe systems with PLC’s and microprocessors that were being used for the monitoring and control of automated processes on an even greater scale than ever before. SCADA, back then, was anything but practical.

In the next couple of decades, the ’80s and 90s, with computer systems getting smaller, the advent of Local Area Networking (LAN), and HMI software, SCADA systems were able to connect to related systems.

Later in the ’90s and 2000s, SCADA began to implement open system architectures with communication protocols that were not vendor specific.

As you can imagine, this opened up SCADA’s ability to connect with varying vendors. This newer, more improved SCADA was then called a networked SCADA system.

Current day SCADA systems have adapted to the changing technologies and have a great advantage over the older SCADA systems.

With the adoption of modern IT standards such as SQL and web-based applications, today’s SCADA allows for real-time plant information to be accessed from anywhere around the world.

Having this data at the operator’s fingertips facilitates improved plant operations allowing for responses to SCADA system queues based on field collected data and system analysis.

Essentially, SCADA is a collection of hardware and software components.

This collection of components begins with real-time data collected from plant floor devices such as pumps, valves, and transmitters.

These components don’t have to be from a particular vendor, they just need to have a communication protocol that the processor can utilize.

Data collected from the field devices is then passed to the processors such as PLCs. From the processor, the data is distributed to a system of networked devices. These devices may be HMIs, end-user computers, and servers.

On the HMI and end-user computer, graphical representations of the operations exist for operator interactions such as running pumps and opening valves.

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#RealPars #SCADA #Telemetry
Nauval Oaoe : Thanks I hope there is a translation into Indonesian
Jon jonsson : * also, use a person that understands systems when applying scada and remember to use " dumb" switches in combination with scada . No one wants an software adjustable safety function wich by accident can be tampered with so automation is good, but to be used with system knowledge. Systems are still sometimes complex
Moa Othi : Thank you dear great work
Juliana Oliveira : Is it mandatory to study firstly PLC programming to start SCADA systems?
張羿訢 : thanks

Введение в SCADA системы. Автоматизация производства

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Класс № 1 "Введение в SCADA-системы"
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Торебай Ибраев : Нашёл я его

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Микроконтроллер и scada система.

Введение. Подключение микроконтроллера к scada системе. Данное видео ознакомительное, соответственно протокол для микроконтроллера как собственно и саму скада систему подробно рассматривать не стану.
USB 2.0 для UART - http://ali.pub/1w7vai
MAX485 модуль - http://ali.pub/1w7vcn
USB к RS485 - http://ali.pub/1w7ves
SCADA SimpLight- http://simplight.ru
Sega Mega : Хорошие уроки. Тебе, кстати, если пересадить волосы, то ты на тома харди похож будешь))
sciencechannel 1.0 : Много воды и бла бла
Stepan Poddubnyy : для дома само то поиграться, для производства ОВЕН это конечно дно.
Erupted : сам релейщик, но приходится в работе заниматься автоматизированными системами, сспи, усо, и т.п
Erupted : очень интересная и нужная в работе информация, продолжайте пожалуйста

... 

#scada

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