Direct downloads for are no longer publicly available on the official Siemens Industry Online Support (SIOS) site as the product has been discontinued. How to Obtain the Software
SIMATIC STEP 7 V12 Trial Download (incl. SP1 and PLCSIM) - ID: 77317911 - Industry Support Siemens. Siemens download tia portal v12 sp1 top
Once you have the files (usually a series of .exe and .001, .002 files), follow these steps: Extract as Admin: TIA Portal V12 SP1 Direct downloads for are