WinCC system with 2x Redundant Servers and 1 Client

Hi

Attached is a sketch on 2x reducdant Servers + 1x WinCC Client configuration which monitor and control both area 1 and 2. Following are some doubts of mine;

[1] Can this configuration works? From WinCC Client HMI to control/monitor both area 1 & 2.

[2] At PC5, can I configure such a way that user with access right of area 2, only can see itself?

[3] With full access right at WinCC client (PC5), can I have FULL control in term of WinCC on both Server 1 and Server 2?

[4] What if I need both servers to provide me information of the complete area 1&2, what should I do in PC5? I'm now having 2 different set of data archive servers?

[5] How to minimise the re-engineering effort if area 1 is implementing now and area 2 is in later stage?

[6] How many basic licences I need for this set of system?


kee