Knowledge

High-hazard process plant and refining units where process safety management governs operations

Why Process Safety Management Programs Fail Eve...

OSHA boxes checked is not the same as a living PSM system. Refinery history shows programs fail when procedures, training, contractors, and investigations drift from how the plant actually runs.

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SCADA operator display supervising distributed PLC and RTU systems

What Is SCADA? Supervisory Control Without Repl...

SCADA collects, displays, alarms, and records data from PLCs and RTUs while local controllers retain interlocks and fast control. This guide covers command handshakes, data quality, communications loss, security, and...

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Industrial VFD controlling a three-phase AC motor

What Is a VFD? Variable Frequency Drives That A...

A VFD varies motor voltage and frequency to control speed and torque. This engineering guide covers rectifier–DC-link–inverter operation, load matching, affinity laws, harmonics, braking, safety, and commissioning.

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Modular PLC chassis with processor, power supply, and analog-digital I/O cards

What Is a PLC? The Controllers That Still Run t...

PLCs still run the plant floor: scan cycles, I/O, and IEC 61131-3 languages decide whether machines stay deterministic. Here is how controllers work, where they win, and where they strain.

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Engineers reviewing automated production and material handling equipment on a plant floor

What It Really Takes to Learn Industrial Automa...

Learning industrial automation now means mastering PLCs, networks, and protection systems—not just robots. This guide maps skills, pitfalls, and career paths for engineers entering control-heavy plants.

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Modernizing Bailey INFI 90 Symphony HMIs Running on OpenVMS Alpha

Modernizing Bailey INFI 90 Symphony HMIs Runnin...

A practical guide to replacing aging Bailey Symphony operator stations running on OpenVMS Alpha. It compares Alpha emulation, OpenVMS x86 migration, OPC re-platforming, and phased ABB modernization.

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Why Maintenance Data Is Essential for Industrial Reliability

Why Maintenance Data Is Essential for Industria...

Maintenance data connects work orders, sensor signals, asset history, costs, and technician knowledge. Used well, it improves planning, reliability, predictive maintenance, spare-parts control, and long-term capital decisions.

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Electric Actuators Designed to Replace Fluids: Hands-on Tutorial

Electric Actuators Designed to Replace Fluid Po...

This article explains how integrated electric actuators, such as SMC’s e-Actuator series, are transforming industrial motion control by replacing traditional pneumatic and hydraulic systems. It highlights improvements in positioning accuracy,...

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