SCADA vs HMI vs PLC
SCADA, HMI, and PLC get used almost interchangeably in job postings and casual shop-floor conversation, but they aren't competing technologies, they're three different layers of the same control system, each doing a distinct job.
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Proximity Sensors Explained: Inductive vs Capacitive vs Photoelectric
Inductive, capacitive, and photoelectric sensors all answer the same basic question, is something there?, but they sense completely different physical properties, and picking the wrong type is one of the most common causes of unreliable machine behavior on the plant floor.
What Is SCADA? Architecture, Components, and How It Works
SCADA lets a single operator monitor and control equipment spread across an entire plant, pipeline, or utility network — here's what the acronym actually means, the five components every system shares, and how it differs from a standalone PLC or a full DCS.
Structured Text Programming for PLCs: A Practical Introduction
Structured text (ST) is the IEC 61131-3 language that feels most familiar to anyone with a Pascal or C background - and it's becoming the go-to choice for sequencing, math-heavy, and recipe-driven logic that turns unreadable in ladder.