SIMATIC 50h Eng. V17 Combo Floating License download; 50 h usage time for the following SIMATIC engineering software: STEP 7 Professional 2021, STEP 7 Professional V17, WinCC flexible 2008, WinCC Professional V17, STEP 7 Distributed Safety V5.4, STEP 7 Safety Advanced V17; software, documentation and license key for download; class A; ******************************* Email address required for delivery