Definition -

What does Supervisory Control and Data Acquisition (SCADA) mean?

A SCADA (Supervisory Control and Data Acquisition) system is a computer application that is used to monitor and control a plant or equipment at the supervisory level.

Supervisory Control and Data Acquisition (SCADA) refers to industrial control systems (ICS) that are employed to control and keep track of equipment or a plant in pharmaceutical industries and other industry like water and waste control, telecommunications, energy, transport, and oil and gas refining.

A SCADA system is a network of software and hardware components that allows organizations to:

Monitor, collect and process information in real-time
Control processes happening at remote locations
Record events into a log file
To interact with devices such as sensors, valves, motors, pumps, and more using human-machine interface (HMI) software.

Simply say that,

"SCADA"- एक प्रकार का Graphics होता है जो की overall system को supervise करता है और Data को Save करता है|

SCADA एक software + PLC एक hardware to make a complete system.

SCADA is a computer system used to gather and analyze real-time data. This data is processed by the computer and is presented on a regular basis. SCADA also saves and make logs for every event into a log file that is saved on a hard drive or is sent to a printer.

SCADA gives warnings by sounding alarms if situations develop into hazardous scenarios.

SCADA systems were initially employed in the 1960s. They include both software and hardware components. The hardware collects and enters data into a computer with SCADA software.

It comprises both software and hardware, different industries have different requirements, so there may be some differences in their SCADA systems, but still, some features are common for all, such as:

Graphic interface
Process mimic
Real-time checking
Alarm system
Data acquisition
Data analysis
Report generator

Benefits of SCADA:

Enhances your efficiency
Help you save time
Sends notifications in a timely manner
Integrates of all your monitoring systems
Allows for predictive & proactive maintenance
Creates history report

A basic SCADA architecture involves one or more Remote Terminal Units (RTUs) and human machine interface (HMI). RTUs are microcomputers that collect information from monitored equipment and send it to your HMI. The HMI will process and display the data, helping your technicians to understand and analyze the information and make smart decisions.

For SCADA example:

The SCADA system quickly sends an alert to you to let you know that a batch of a determined drug is showing a high incident of production errors. You can pause the operation and view the SCADA system information in your HMI to determine the cause of issues. After reviewing of data, you determined that machine was malfunctioning.

Your SCADA networks ability to notify you and your team of an issue will help you resolve it and prevent loss of products.

Main system components :

Supervisory computers
RTU - (Physical equipment se connect sensor, pressure gauge, timer etc.)
PLC (Programmable logic controller)
Communication infrastructure - (RTU, PLC, HMI को Supervisory से जोड़ना)
HMI (Human machine interface) - Graphics की मदद से control कर सकते है|

SCADA systems consist of:

Field data interface equipment, generally programmable logic controllers (PLCs) or remote terminal units (RTUs). These connect to field sensing devices, local control switchboxes and valve actuators. Field-data-interface equipment forms the core part of SCADA systems.

A communications system. This is employed to move data between different pieces of field data interface equipment and control units, and the computer systems employed in the SCADA central host. The system may be telephone, radio, satellite, cable, and so on, or a combination of any of these. The communications network is designed to offer the way by which the data can be transmitted in between the field-based RTUs and the central host computer servers.

A central host computer server(s). This is often known as a master station, a SCADA center, or a master terminal unit (MTU). The central host computer is usually a single computer or a computer server network.

A set of standard and/or customized software systems. They are helpful in delivering the operator terminal application and SCADA central host. This supports the communications system, and monitors and controls the remotely located field-data-interface equipment.

Some of the software products usually used within the SCADA system include:

Central host computer OS
Operator terminal OS
Central host computer application
Operator terminal application
Communications protocol drivers
RTU automation software
Communications network management software

Difference between SCADA and HMI?

Supervisory Control and Data Acquisition (SCADA):

HMI can be part of SCADA but SCADA can't be part of a HMI.

SCADA systems are a combination of many including sensors, (RTUs) and (PLCs). That HMI unit on the SCADA can monitor and control anything that is connected to it.

बड़े industrial infrastructure मे किसी बड़े system को उसके अलग - अलग जगह से control कर पाना deficult होता है| इसीलिए monitor & control करने के लिए SCADA & HMI का use किया जाता है |

SCADA एक बड़ा system है HMI इसका एक part होता है|

SCADA का अर्थ है जो एक अकीकृत प्रणाली से system की अलग - अलग हिस्सो के कामकाज को control और निगरानी करने के लिए use किया जाना है |

इस controlling mechanism को जिसमे electronic circuit, PLC के रूप मे जाना जाता है |PLC माशीन को control करता है और data के लिए सेंसर पर depend रहता है |

HMI:-

HMI आमतौर पर पुरे system का एक graphical layout होता है जिसमे machine की present position का पता चलता है तथा अन्य control commond भी दिए जा सकते है |

What is SCADA (Supervisary Control and Data Acquisition). SCADA क्या है | and how important SCADA in pharmaceutical industry. Difference between SCADA & HMI