I--- Qelectrotech Siemens Library - May 2026

The QElectroTech Siemens Library is a specialized collection of electrical symbols and manufacturer-specific components integrated into the QElectroTech (QET) open-source CAD software. It enables electrical engineers and automation professionals to design professional schematics using Siemens-branded hardware, such as S7-1200 PLCs, LOGO! modules, and industrial contactors. Key Components of the Siemens Library

Key Features and Benefits

Method 1: The Built-in "Get New Elements" (Easiest)

Open QElectroTech.
Right-click in the Element Panel (usually on the left side).
Select "Get new elements" or open the Element Editor.
Browse the online repository. Search for "Siemens" or navigate to the automation/PLC categories.
Download and add the items to your local library.

A. Programmable Logic Controllers (PLCs)

SIMATIC S7-1200 & S7-1500: Symbols for CPU units, signal boards, and communication modules.
S7-300/400 (Legacy): Racks, power supplies (PS), and interface modules (IM).
I/O Modules: Digital Input (DI), Digital Output (DO), Analog Input (AI), and Analog Output (AO) cards with corresponding pinouts.

Cross-References: Automatically updated links between related elements (e.g., a contactor coil and its associated contacts). i--- Qelectrotech Siemens Library -

The library is not a single static file but a living collection of files (XML-based symbols) stored in the QET Official Elements Collection PLC Modules : High-detail symbols for the Siemens S7-1200 series , including the 1214C and 1215C variants. Automation Elements The QElectroTech Siemens Library is a specialized collection