Thanks for the reply, I just switch to using EtherCAT.
I can perfectly understand what you saying.so don't be sorry man.
Is kuka device 100% named "plasma" in plc hardware configuration ?Try to connect to your profinet network with kuka work visual and then right click on your profinet and select function named Device List and Profinet Names, and check if there is device named plasma.
Usually if you cojnfigure device in TIA portal and if you name it "something" real name on network is going to be for example "xdsomethingxy21"...if name and IP adress is the same like in wov project, than try to reinstal kerc next option, It helped me once after 2 day of unsuccessful attempt of PN configuration :D...ps. sorry for my bad english
Edit: try to post screenshoot of device in hardvare configuration of PLC.