SIMATIC S7, F-programming tool S7 Distributed Safety V5.4, floating license for 1 user, E-SW, SW and documentation on DVD, Class A, 3 languages (de,en,fr), executable in Windows 7 SP1, Windows 10 Professional, Windows 10 Enterprise, Windows Server 2008 R2 SP1, Windows Server 2012 R2, Windows Server 2016; 64-bit operating system required; STEP 7 V5.5 SP1 or higher; Ref,-HW S7-300F/400F/WinAC F