Notes from the plant floor.
SCADA, MQTT, OPC, OT security, and the open-source IIoT stack — from fifteen-plus years inside industrial control systems.
4 essays · RSS
July 2026
23 Jul 2026
Why the automation industry is moving beyond vendor lock-in
For thirty years the safest architecture was one vendor, everywhere. The economics behind that are unwinding — here's what's replacing it, and why it isn't the vendors' fault.
automationopc-uamqttindustry-4.0
22 Jul 2026
There is no cloud SCADA. Only hybrid — done well or done badly.
A 5-layer reference architecture for the next decade of plant operations — what runs where, why, and what breaks if you put the wrong layer in the wrong place.
scadacloudarchitecture
22 Jul 2026
Hello from the plant floor
Why this blog exists: fifteen years in industrial control systems, and the writing that world deserves but rarely gets.
metascada