, which acts as the central hub for storing, transferring, and managing technical license keys. These keys are typically supplied on a USB stick or via download and are required for version 5.3 and higher. Official License Types
If you are just starting out, consider the bundle, which includes V5.5 alongside S7-GRAPH, S7-SCL, and S7-PLCSIM for a complete simulation environment. siemens simatic step7 v5 5 profesional license key