: The software itself is free of charge and does not require a license key for operation. However, legally, you should possess a STARTER license certificate (any version). 2. System Requirements for V5.3
Test your motors directly from your laptop without needing a PLC signal. Siemens Starter V5.3 Download
What (e.g., SINAMICS G120, S120) are you looking to commission? Which operating system is installed on your engineering PC? : The software itself is free of charge