The Siemens 6ES7658-7DX68-0YB5 is a SIMATIC PCS 7 Route Control Engineering V9.1 software package. It comes with a floating license for one user, and the license key is provided on a USB flash drive. The software supports six languages (German, English, French, Italian, Spanish, and Chinese) and is executable on Windows 10 LTSC 2019 and Windows Server 2019.