Schneider HotStandby System with RIO question

[new_user]

Hello dear experts!
I need your assistance in the following.
I have a hot standby system based on Schneider Quantum CPUs with RIO nodes on Modicon M340 platform via Ethernet. All RIO nodes are interconnected in the ring for higher reliability. But one RIO node is placed in 500 meters from the others. I think I can connect it with optical Ethernet cable and a pair of switches with optical ports. All other RIO nodes are interconnected with copper Ethernet cable.
Would you please check my configuration and say will it work or not?
Or you can advise me another solution.
My configuration you can can find here:
http://www.filedropper.com/hotstandbysystemwithrio2

Any your help I will appreciate a lot !!!