The Siemens 6ES7833-1FA14-0YF5 is the STEP 7 Safety Advanced V14 SP1 Upgrade Combo License. It allows users to upgrade from Distributed Safety V5.4 SP5 to V14 SP1 Combo, enabling parallel use of both versions. This software is designed for F-programming in TIA Portal V14 SP1, supporting SIMATIC S7-1200F, S7-1500F, S7-1500F SW Controller, S7-300F, S7-400F, and WINAC F. The package includes software and documentation on a DVD, with the license key on a USB stick. It supports two languages (German, English) and requires STEP 7 Professional V14 SP1 to function. this product has been discontinued.