SIMATIC STEP 7 Professional V21, Powerpack V19..V21 -> V19/2021 SR2 Combo..V21/2021 SR4 Combo; floating license download; engineering software in the TIA Portal; software, documentation and license key for download; -- software class A; 9 languages: de,en,zh included, fr,es,it,ru,ja,ko as download; for configuration of SIMATIC S7-1200/1500, SIMATIC S7-300/400/WinAC, SIMATIC Basic Panels, SIMATIC Unified Basic Panels. -- for system requirements specification, see www.siemens.com/compatool consignee email address required for delivery