Flat, minimalist designs are easier for the human eye to process during an emergency than glossy, 3D-rendered graphics. Standardize Your Graphic States
Recommendation: Always choose when available. SVG files allow you to dynamically change component colors inside your SCADA/HMI software based on PLC tags (e.g., turning a valve green when open and red when closed). Implementing High-Performance HMI Design Standards
| | Recommended Free Library | |---|---| | A web browser (dashboard or cloud‑based HMI) | FUXA or OSHMI | | An embedded microcontroller (ESP32, STM32, etc.) | LVGL | | An NXP microcontroller product | emWin (free for NXP chips) or GUI Guider | | A Windows desktop SCADA application | GLG Toolkit Community Edition or CuteHMI | | A custom SVG graphics set for Inkscape | Opto 22 Library or Siemens Industry Graphic Library | | An industrial touch‑panel HMI | LVGL + GUI Guider | | A quick prototyping or proof‑of‑concept project | FUXA or awtSCADA |
Instead of building every gauge from scratch, free libraries with a consistent design system: free hmi graphics library
What are you using? (e.g., Ignition, FactoryTalk, WinCC, Node-RED)
While Flaticon is a general repository, their industrial vertical is excellent. You must filter by "Free" licenses.
Using generic clip art or random internet images for industrial automation leads to messy, confusing screens. Dedicated HMI graphics libraries offer distinct advantages: Flat, minimalist designs are easier for the human
As part of its SCADA platform, Siemens installs a free “IndustryGraphicLibrary,” which is a standard library of pre‑defined SVG graphics. These graphics are specially crafted so that key properties can be “dynamized” (e.g., color changes based on process value) directly within WinCC. While intended for Siemens’ tools, the SVG files can also be extracted and used in other SVG‑compatible environments.
In , use the Image tool to import your assets into the graphics directory.
Always prioritize SVG files for dynamic equipment (pumps, valves) and reserve PNG files for static background images or complex logos. Implementing Free Graphics: Best Practices Using generic clip art or random internet images
Modern open-source and freemium design ecosystems have democratized industrial design. You no longer need a $10,000 graphic design budget to create a SCADA system that looks like it belongs in a Tesla Gigafactory.
Searching GitHub for terms like "HMI graphics," "Industrial SVG," or "SCADA icons" yields numerous open-source libraries. Many engineers share their custom SVG or PNG collections under MIT or Creative Commons licenses.
A massive database of entirely free SVGs allowed for commercial use without attribution. It is highly optimized for modern vector-based SCADA systems. Understanding Graphic Formats: SVG vs. PNG vs. BMP