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), runs under 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, from STEP 7 V5.5 SP1, Ref.-HW S7-300F/400F/WinAC F Engineering of safety-related applications in conjunction with STEP 7 V5.x. Safety-related and standard programs can not only run on the same CPU, they can also be created with the same engineering tools. The safety-related part of the program is created using the standard STEP 7 languages LAD and FBD, as well as the S7 Distributed Safety options package. To make things easier, S7 Distributed Safety provides a command library with TÜV-approved blocks (e.g. emergency stop, two-hand control, muting, door monitoring). You can also create your own blocks. This makes it much easier to reproduce or expand existing projects. To program safety-related applications with controllers of the new generation S7-1200F, S7-1500F, ET 200SP F-CPU and S7-1500 Software Controller F, you need the STEP 7 Safety (TIA Portal) engineering software, which you can of course also use to program the fail-safe systems S7-300F, S7-400F and SIMATIC WinAC RTX F.