SIMATIC STEP 7 Basic V21, upgrade V11..V20 -> V21; floating license download; engineering software in the 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 S7-1200; 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.