SIMATIC WinCC Professional 4096 PowerTags, SUS (download) software update service, within the framework of this contract, you will receive for one year all up-to-date software versions; The contract is extended automatically by 1 year if not canceled 3 months prior to expiration. period of delivery and service: 1 year from date of invoice requirement for conclusion: current version of the software - - consignee email address required for delivery