| Software | Best For | Compatibility | | :--- | :--- | :--- | | | New projects, S7-1200/1500, unified interface | Does not open Classic projects directly (needs migration) | | STEP 7 Professional 5.7 | The final Classic version (still sold) | Windows 11 native support | | S7-PLCSIM (Standalone) | Simulation without hardware | Works alongside 5.6 SP2 |
Because of its age, many engineers run STEP 7 5.6 SP2 on a Windows 10 Virtual Machine (VMware or VirtualBox) . This is highly recommended to avoid conflicts with TIA Portal or newer Windows updates. siemens step 7 5.6 sp2 download