SIMATIC S7, F programming tool, STEP 7 Safety Advanced Combo, V19 / Distributed Safety V5.4, engineering software, floating license for 1 user, software and documentation on DVD, license key on USB stick, Safety Advanced V19: Class A, 2 languages (de, en), runs with TIA Portal V19 STEP 7 Professional V19, Distributed Safety V5.4 SP5: Class A, 3 languages (de, en, fr), runs from STEP 7 V5.5 SP1, * Contents: Set (2x DVD + 1xUSB)