WINCC UPGRADE RC V7.X -> RC V7.4 DL
Reference : 6AV6381-2AB07-4AK3
SIMATIC WinCC RC upgrade, from V7.X to V7.4 SP1 for SIMATIC WinCC Runtime & Configuration (RC) incl. options redundancy, Server, User Archive, Web Navigator, Web NAV Load-Balancing, Web Diagnostics Client/Server, Data Monitor, Connectivity Pack, Conn