🖥️ PLC HMI, Alarms & SCADA0%
🖥️ The Suspiciously Fun PLC Series · Cross-brand

HMI & SCADA:
the machine's face, done right.

All your PLC logic is invisible until a screen shows it. This module is the operator-facing layer, and two chapters are live so far, each with an HMI you drive yourself: tags and data binding, then screen hierarchy and faceplates. The alarm acknowledge cycle, trends and historians, recipes and user security, and a mini line dashboard you operate yourself are still being written.

The screen is the machine

👁️ operators never read your ST, so to them the HMI is the machine. A clear overview, honest alarms and a trustworthy trend are worth as much as the logic underneath.

Patterns under the paint

🧩 tags mirror FB surfaces, faceplates mirror FB instances, alarms are state machines and recipes are parameter structs. Everything you built in D5–D7 has an on-screen twin, and this module connects each one to its screen.

🌐
The module is vendor-neutral. Tags, faceplates, alarm states per ISA-18.2, trend deadbands, recipe sets and access levels apply to TwinCAT HMI, CODESYS Visualization, Ignition, FactoryTalk View, WinCC and every other package. Where a name belongs to one product, we avoid it or say which product it comes from.
Best after the earlier modules, because the dashboards here supervise the FBs, sequences and axes you already built.