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The primary engineering platforms for Siemens PLCs are and the TIA Portal .

Siemens uses a dedicated tool called the Automation License Manager (ALM) to handle software authorizations. This software acts as a central hub for installing, transferring, and upgrading "License Keys," which are the electronic "stamps" required to run protected software like or WinCC . keys7 siemens download top

Siemens offers various licenses to fit different needs, including Trial licenses (typically 21 days for evaluation), Single licenses (tied to one PC), and Floating licenses (shared across multiple devices). The primary engineering platforms for Siemens PLCs are