Of course I doesn't support Profinet. You can connect your PLC in network using second port on PLC via "normal" ethernet communication.

Profinet uses for master (PLC) the same hardware (NIC) as ethernet, while clients (ET200S,...) use special ASIC to decode and encode telegramson the fly - means theyare receiving telegrams and at the same time forwarding telegrams to another station, if telegramis addressed to them they patch and encode their data on the fly.

Marko Bursic

Of course I doesn't support Profinet. You can connect your PLC in network using second port on PLC via "normal" ethernet communication.

Profinet uses for master (PLC) the same hardware (NIC) as ethernet, while clients (ET200S,...) use special ASIC to decode and encode telegramson the fly - means theyare receiving telegrams and at the same time forwarding telegrams to another station, if telegramis addressed to them they patch and encode their data on the fly.

fritz

Hello tahlil

first things first, pretty much any unmanaged and managed switch can be used for Profinet RTand I'm pretty confident that your Cisco 2960 series switch can also be used for Profinet (as long as you are using Profinet RT and NOT IRT which requires IRT capable switches).
Ipresume that the "No"entry for "Profinet IO" intheCisco overviewthat you referred to simplymeans that you won't get a GSDML file for the switch and thus can't add the switch itself as an I/O device to your S7 HWconfig.

So why won't it work I hear you ask?
Well, there's a couple of things to be aware of and check:
1.) Confirm that you are using Profinet RT(NOT IRT)

2.)Be aware that Profinet uses IEEE 802.1Q packet structure with aVLAN ID=0,Priority 6 and Ethernet type 0x8892 which means thefollowing for you:
a.)Priority 6 isalso used for VOIP and must be enabled on the switch.
b.) Your "2.jpg" shows that you are using VLAN's in your network and assigned VLAN 11.
You'll need to configure your CISCO switch to accept the Profinet VLAN ID=0 frame (Ethernet type = 0x8892) andthen forwarded it tagged asVLAN 11.
Have a look at Which settings have to be complied with in a PROFINET RT network in conjunction with VLAN switches? for more details on this and then get your IT department cracking on configuring your CISCO switch properly.

@ Marko Bursic:

"... while clients (ET200S,...) use special ASIC to decode and encode telegrams on the fly - means they are receiving telegrams and at the same time forwarding telegrams to another station, if telegram is addressed to them they patch and encode their data on the fly".
The above is kind of half correct but also somewhat misleading.
PN ET200S station use "cut through" to forward a Profinet message that is not meant for them after receipt of the first 6 bytes (this means the delay is always only about 7 micro seconds whereas "store and forward" can cost youup to 130 micro seconds delay for a 1500 byte long frame).
What aPN ET200S stationdoes NOTdo though is"patch and encode their data on the fly" (which is something that Ethercat does).

I hope this helps