For a secure and authorized installation, it is highly recommended to use official Siemens Industry Online Support (SIOS) portals rather than unofficial mirrors. How can get download of S7-PLCSIM V15.1 Upd1?
: A quad-core processor equivalent to or better than an Intel® Core™ i5-6440EQ (up to 3.40 GHz). simatic s7plcsim v151 download better
: V15.1 supports CPU devices with the latest firmware available at its release, including S7-1200 versions 4.0 to 4.2 and S7-1500 versions up to 2.6. For a secure and authorized installation, it is
: For the most reliable experience, users should ensure they download Update 1 for PLCSIM V15.1 , which specifically adds support for S7-1200 FW 4.3 and further stabilizes the simulation environment. System Requirements for a "Better" Simulation For a secure and authorized installation