Siemens provides several categories of libraries:
| Library Type | Cost | Typical Contents | Access Method | |-------------|------|------------------|----------------| | Open Library (Basic) | Free | Basic math, logic, conversion blocks | TIA Portal built-in | | Application Examples | Free | Complete project examples with HMI | Siemens Support Website | | Drive Libs (e.g., Sinamics) | Free with hardware | Drive control blocks | Startdrive / TIA Portal | | Licensed Libraries (e.g., LSim, PID Advanced) | Paid | Advanced process control, simulation | Siemens Industry Mall | | Safety Libraries | Free (with safety hardware) | Safety function blocks | TIA Portal Safety folder |
| Desired Function | Official Free Siemens Resource | |------------------|--------------------------------| | Motor control (starter, soft starter) | “SIRIUS Soft Starter library” – free on SIOS | | Drive control (Sinamics iQ) | “Sinamics iQ Telemetry” blocks – free with Startdrive | | Electrical power monitoring | “PAC Power Monitoring library” – application example on SIOS | | General math & logic | Open Library (standard functions) | | PID control (basic) | “Compact PID” – built into TIA Portal | i qelectrotech siemens library free
If you can provide more context (e.g., where you saw the term “iQelectrotech”), I may be able to trace it to a specific third-party training course or user forum. Otherwise, I recommend using the official Siemens resources listed above.
This article is designed for electrical engineers, automation students, and panel builders who use QElectroTech (the free, open-source software for electrical schematics) and want to integrate Siemens components without paying for expensive commercial symbol libraries. Siemens provides several categories of libraries: | Library
Yes, free Siemens libraries exist for QET, but they are community-maintained, not official. While useful for basic schematics, they lack the depth, validation, and integration of commercial tools like EPLAN or Siemens' own software.
You might wonder: Why use a free Siemens library when Siemens provides TIA Selection Tool and EPLAN macros? If you can provide more context (e
Here is the reality for freelance engineers and small panel shops:
The "i qelectrotech siemens library free" solution gives you 90% of the functionality for 0% of the price. You can wire a full S7-1500 panel with ET200SP remote I/O and Sinamics drives without ever paying a license fee.