SIMATIC S7, F-programming tool, STEP 7 Safety Advanced V17; Upgrade DS V5.4 / V11..V16 (Combo) -> STEP7 Safety Adv V17 (Combo); for parallel usage of Distributed Safety V5.4 SP5, STEP 7 Safety Adv. V11..V16 and STEP 7 Safety Adv. V17; engineering software; upgrade Combo license; license key on USB stick; Class A, 2 languages (de, en); executable with TIA Portal V17 STEP 7 Professional V17; ******************************* Content: 1x USB