Hi,
We have three identical PC stations running WinCCflexible / WinLCRTX. Each station has identical Profinet subnet. We need to connect these stations to a SQL server running on our office network to periodically collect data from each station. Please see attched network diagram.
What is best way to connect these stations to office network?
Do I need to use a router or an unmanged switch would do?
Could The identical profinet subnet poseduplicate IP addresses problem when all the stations are connected to office network?

Any help and suggestion would be highly regarded.
Thanks