SIMATIC 50h Eng. V15.1 Combo Floating License download; 50 h usage time for the following SIMATIC engineering software: STEP 7 Professional 2017 SR1, STEP 7 Professional V15.1, WinCC flexible 2008, WinCC Professional V15.1, STEP 7 Distributed Safety V5.4, STEP 7 Safety Advanced V15.1; Software, documentation and license key for download; Class A; ******************************* E-mail address required for delivery