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Hakan KaracaENGINEERING JOURNAL

FIELD NOTES FOR INDUSTRIAL ENGINEERING

Make complex systems understandable, testable and dependable.

Practical engineering notes on PLCs, SCADA, OT/IT integration, manufacturing data and industrial AI—for people who make systems work beyond the diagram.

Control systemsData integrityPractical AICommissioning
THE ENGINEERING STACK01 — 05
01Field & instrumentationSensors · actuators · signals↘
02ControlPLC · motion · interlocks↘
03SupervisionHMI · SCADA · historians↘
04Execution & contextMES · SQL · genealogy↘
05Analysis & decisionsQuality · reliability · AI↗

The interesting failures often happen between the boxes.

EXPLORE BY DOMAIN

Six lenses on one engineering system.

Choose the discipline closest to the problem you are solving.

RECENT THINKING

Notes from the engineering bench.

Browse articles →

ENGINEERING UTILITIES

Useful tools. Stated assumptions.

Small calculators and utilities for work-time planning, EV energy estimates and everyday tasks. They are designed to make the arithmetic transparent—not to replace official guidance or professional judgement.

Open tools & calculators ↗

A SMALL PRINCIPLE

A system is not reliable because its happy path works. It is reliable when its failure path is understood, tested and recoverable.

A useful standard for PLC code, data pipelines and AI pilots alike.