Configuration to view data From WinCC CAS

[stevenPLC 0]

Hi All,, I'm working on a project that use Siemens PLCs S7-400 and WinCC as the SCADA system. There are 6 PCs for the WinCC SCADA System ; 2 Servers, 2 Clients, 1 Engineering Work Station(EWS) and 1 CAS Server. I have come across in the WinCC Help Manual regarding the CAS the following statement : Quoted: Central Archive Server(CAS) You can save process values and messages of all connected WinCC servers on a centralized archive server (WinCC CAS). You can display the saved process values and messages, as usual, on the process screen in Runtime in WinCC Online Trend Control or WinCC Alarm Control End Quote My problem is, how to configure in EWS so that the saved process value and messages can be viewed in the Runtimin WinCC Online Trend Control or WinCC Alarm Control as stated?? Anyone have such experience can give some hints?

[stevenPLC 0]

Is there anyone can give some hints on this?