// Notes
Notes.
Field notes on industrial digital architecture: MES, SCADA, MQTT, historians, and the unglamorous work of getting factory data to actually flow. Written from the plant floor, not the brochure.
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MQTT and Sparkplug B: why factories stopped polling
Read ↗2026-07-25 · 6 min read
Polling sets a ceiling on every factory data project. MQTT flips the direction of the conversation, and Sparkplug B adds the contract that turns it into an architecture instead of topic soup.
MQTTSparkplug BUNSArchitecture -
MES vs SCADA vs historian: what actually goes where
Read ↗2026-07-23 · 4 min read
They're not competitors and they're not interchangeable. They're three layers of a factory's data stack, each answering a different question, and most stalled data projects got the layering wrong.
MESSCADAHistorianArchitecture