: You must manually download these .elmt files and copy them into your "User Collection" folder (usually found in your home directory under .qet or AppData\Roaming\qet on Windows).
Disclaimer: This article is for informational purposes. The author is not affiliated with Siemens AG or the QElectroTech development team.
Specific S7-1500 or S7-1200 modules, including I/O configurations, help in documenting complex control systems. Tips for Working with QET
If you want to achieve the setup, follow these precise steps. We will assume you are starting from a clean Windows or Linux installation. i qelectrotech siemens library free
Siemens Elements in QElectroTech: Accessing and Using Libraries
: The primary source for all built-in symbols. You can explore the latest updates on the Official Elements GitHub .
The most up-to-date and comprehensive manufacturer libraries are hosted by electrical engineers on open-source repositories. Users frequently compile extensive collections of specific product lines and share them freely. : You must manually download these
You avoid drawing complex PLC cards (like the S7-1200 or S7-1500) pin by pin.
Pre-configured item properties, saving time during Bill of Materials (BOM) generation. Where to Find Free Siemens Elements for QElectroTech
| Problem | Solution | | :--- | :--- | | | QET uses SVG graphics. Right-click the symbol → Edit Symbol . The "i" library is vectorized; if bitmap, re-download from a trusted source. | | Cannot find the S7-1500 CPU 1518. | The free library focuses on common CPUs (1511, 1513, 1516). You must edit an existing 1516 element and rename it to 1518. (Right-click → Edit → Save As). | | The terminal numbers on the SIRIUS contactor are wrong. | Lock the element, then use Insert > Text to overlay the correct terminal IDs (A1, A2, 13, 14). | | My library disappeared after an update. | Always backup the folder: C:\Users\[YourName]\QElectroTech\elements . The "i" version does not auto-migrate. Copy your old Siemens folder into the new install. | then use Insert >
When using Siemens SIRIUS contactors, utilize QElectroTech’s link feature. Place the main coil element on your control circuit page, and link it to the auxiliary contacts (NO/NC) placed on your power circuit pages. QElectroTech will automatically generate cross-references between the pages. Leverage the Element Editor for Custom I/O
Your schematics look standardized, making it easier for panel builders to wire the system and troubleshoot errors. Where to Find Free Siemens Libraries for QElectroTech
You might wonder: Why use a free Siemens library when Siemens provides TIA Selection Tool and EPLAN macros?