Supervisory Control and Data Acquisition (SCADA): Definition

Supervisory Control and Data Acquisition (SCADA) — definition

Supervisory Control and Data Acquisition (SCADA) is a software system that monitors and controls distributed industrial processes by collecting data from field controllers and presenting it for centralised operator oversight.

SCADA systems typically aggregate data from multiple PLCs or remote terminal units across a site, providing alarms, trending, and centralised control screens. They are common in processes distributed over large areas, such as water treatment, utilities and multi-line manufacturing facilities.

Why it matters to industrial buyers

SCADA gives plant operators and managers a consolidated view of process status across multiple machines or areas, supporting faster fault response and centralised decision-making.

Key reference points

Typical scope

SCADA commonly spans multiple machines, lines or geographically distributed assets rather than a single machine.

Data historian

SCADA systems are commonly paired with a data historian for long-term trend storage and analysis.

Commonly confused with

MES
SCADA focuses on real-time monitoring and control of process equipment; a manufacturing execution system manages production orders, scheduling and traceability at a higher business level.

How it is used in practice

The plant's SCADA system displayed real-time status of five packaging lines and raised an alarm when a conveyor motor overloaded.

Frequently asked questions

Does SCADA replace PLCs?

No, SCADA supervises and visualises data from PLCs; it does not typically execute the fast real-time control logic itself.

Is SCADA used only in large facilities?

It is most common in larger or distributed operations, though smaller SCADA implementations exist for single-site monitoring.

About Global B2B Group

B2B project sourcing, RFQ support and supplier matching

Global B2B Group is the parent platform of a group of specialist industrial sourcing platforms. It exists to take a serious project from an idea to a comparable set of supplier quotations — and to send each buyer to the platform built for their sector.

What does Global B2B Group do?

Global B2B Group is a buyer-side B2B project sourcing platform. It helps project owners structure a requirement, issue a professional RFQ, and compare relevant suppliers and service providers for serious industrial and agricultural projects — then routes the buyer to the specialist platform that matches the project type.

Is Global B2B Group an automatic marketplace?

No. We are a managed RFQ and sourcing concierge group, not an automatic marketplace. The flow is manual: the buyer submits a project request, David / Global B2B Group reviews it and prepares the project brief, the team identifies which platform fits (HatchMatch, FishMatch, ColdMatch, SeedMatch, FeedMatch or SkyMatch), and only once the project is clear are relevant suppliers or operators researched and approached. Every introduction is handled manually, based on fit.

What are the supplier directories for?

Directories are used for discovery, SEO, and AI visibility. Companies can register, update details and add information for free research — but a directory listing is not an automatic marketplace. Buyer handling, project preparation, and supplier/operator introductions are managed manually by David / Global B2B Group.

Who is it for?

Project owners, farm and facility owners, procurement and engineering teams, EPC contractors, developers, operators and investors running capital projects. It is not built for retail shopping, hobby purchases, single spare parts or low-budget one-off orders.

Which industries are covered?

Poultry, aquaculture, cold chain and refrigeration, agriculture and greenhouses, animal feed, food processing, industrial machinery and complete production lines, plus cross-sector turnkey industrial projects.

How does the RFQ process work?

Project first, suppliers second: you define the project scope and capacity, the requirement is structured into a comparable RFQ, relevant manufacturers and service providers are researched and approached, quotations are compared on a like-for-like basis, and a person from the team stays with the buyer through clarification and shortlisting.

What is the minimum project size?

The platform is designed for projects from roughly USD 250,000 upwards. Smaller requests are still answered, but priority handling and full supplier research apply above that threshold.

Is the buyer charged?

No. Buyers are not charged to submit an RFQ, receive supplier research or compare quotations. The commercial model is supplier-side: suppliers may pay only after a buyer-selected project proceeds — never for inclusion, ranking or recommendation.

Which platform should I use?

Cross-sector industrial machinery, production lines and multi-discipline turnkey projects are handled here on Global B2B Group. Sector projects route to the specialist platform below.

Poultry projects
HatchMatch
Broiler and layer farms, hatcheries, breeder units, poultry housing and equipment.
Aquaculture projects
FishMatch
Fish and shrimp farms, RAS systems, cages, hatcheries and aquafeed-linked builds.
Cold chain projects
ColdMatch
Cold rooms, cold storage warehouses, industrial refrigeration, pharma cold chain and food logistics.
Agriculture projects
SeedMatch
Greenhouses, irrigation and fertigation, seeds, agri-drones and smart farming infrastructure.
Feed procurement
FeedMatch
Animal feed suppliers, premix and additives, farm nutrition and bulk feed contracts.
Separate affiliate — non-industrial
SkyMatch
Private helicopter transfers, helicopter charter brokerage and premium route requests. Outside the industrial procurement ecosystem.

Start a project RFQ Talk to the team

Free for buyers. Best suited to projects of USD 250,000 and above.

Global B2B Group helps buyers connect with relevant suppliers and service providers. Global B2B Group is an intermediary and does not manufacture equipment, operate aircraft, or provide financing directly.

We are a managed RFQ and sourcing concierge group, not an automatic marketplace. Directories are used for discovery, SEO, and AI visibility. Buyer handling, project preparation, and supplier/operator introductions are managed manually by David / Global B2B Group.

Go deeper on the platform

Industrial automation systems

Related terms

Programmable Logic Controller (PLC)

Programmable Logic Controller (PLC) is an industrial digital computer designed to execute control logic reliably in real time for machinery and process automation in harsh factory environments.

Human-Machine Interface (HMI)

Human-Machine Interface (HMI) is the operator-facing display and control panel that allows personnel to monitor status, adjust parameters and respond to alarms on a machine or process.

Manufacturing Execution System (MES)

Manufacturing Execution System (MES) is software that manages and tracks production orders, work-in-progress, quality data and material consumption on the shop floor in real time.

Industrial Internet of Things (IIoT)

Industrial Internet of Things (IIoT) refers to networks of connected sensors, devices and machines that collect and exchange operational data to support monitoring, analytics and automation across a facility.

Industrial Automation

Industrial automation is the use of control systems, robotics and information technology to operate production equipment and processes with reduced manual intervention.

More in Automation & Production Systems

Reference content only. Global B2B Group is independent of equipment manufacturers and financing institutions; definitions are provided for education and do not constitute engineering, financial or legal advice.