hi dear

Our old plant controlling by  WinCC 7.4 on PC and  CPU 315-2 PN/DP S7-300 384 KB.

our new plant controlling by WinCC 7.5 on PC and CPU 1515-2 PN S7-1500 2 MB.

we want to upgrade WINCC7.4 to 7.5 on old pc. and we prepared 6AV6 381-2BS07-4AX0

1- so can i  removed wincc7.4 and installed upgrade WINCC7.4 to 7.5 ? or not need to removed Wincc 7.4?

2- for controlled two cpu by one pc , we wanted to installed profinet cable between switch port in panel for s7-300 and s7-1500 , is it accepted ? Please refer to attachment?

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Split from Migrate WinCC 7.4 (integrated with Simatic Manager) to 7.5.

Hello mohammd tamras

You cannot install two WinCC Versions parallel  (SQL Server versions are different)

So you have to uninstall WinCC and SQL Server and then you can install the new Version but check also the OS compatibility.

Of course you can use a switch for HMI  to PLC Communication.

Bye Murof

Hi Mohammd,

Before installing WinCC 7.5, you should check that the Windows installed in the PC is compatible with WinCC 7.5.

https://support.industry.siemens.com/kompatool/pages/main/index.jsf

Br,

Cocolino