STEP 7 Prof. V21 C upgr. V11..V20-> V21 or V17..V20 Combo-> V21 Combo DL

SIMATIC STEP 7 Professional V21 Combo, upgrade V11..V20 -> V21 or V17/2021 Combo..V20/2021 SR3 Combo-> V21/2021 SR4 Combo, floating license download, engineering software in TIA Portal, software, documentation and license key for download, 9 languages: de,en,zh included, fr,es,it,ru,ja,ko as download, for configuration of SIMATIC S7-1500/1200/300/400/WinAC, SIMATIC Basic Panels, SIMATIC Unified Basic Panels. -- for system requirements specification, see www.siemens.com/compatool -- software class A, consignee email address required for delivery.