WinCC Software Update Service Download valid for 3 licenses automatic follow-up deliveries of upgrades and service packs 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