SIMATIC WinCC Professional max. 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 ******************************* Email address required for delivery