Help me: Comms between PNC and S7-300 via Profinet

Hi, I have a IC695PNC001 module (also known as IO-Controller) and S7-300 (also known as IO device) to configure communication PNC module needs a GSDML file, I created this file in Step7, I added the "IO-device" using the GSDML file, execute "Launch Discovery Tool" and "IO-device" icon appears with "Assigned with errors", the caption reads: "Show all devices on a coincident IP address, subnet or gateway of the selected LAN", I do not know what the details of the error, or to fix it, please help me.

Regards

alex3429