S7 Energy Efficiency Monitor for machines, S7-1500/1200; Single Runtime License download contains license certificate for machines S7-1500/1200; as pdf for download, class A; executable on: S7-1500 CPU firmware V2.1 or higher, ET 200SP CPU firmware V2.1 or higher, S7-1200 CPU firmware V4.2 or higher - - consignee email address required for delivery