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SCADA control system hierarchy diagram showing PLC, RTU, SCADA server and operator workstation layers
scadacontrol systemsautomation

SCADA Control System Basics for Automation Engineers

SCADA control systems sit above the PLC but below the enterprise network. Here's how the layers connect, what software does the work, and where things go wrong.

Jul 5, 2026 · 9 min read

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