RSlinx OPC

Has anyone here tried to connect a PLC to RS-Linx as their OPC UA connection? I am not really familiar with OPC servers but to my understanding I have the server up after linking the PLC . I tried using port 4840 in VC Connectivity. This does not work and I’m either using the wrong port ( as in I don’t know how to assign it to 4840 in RS-Linx if its not set to that by default, nor do I know how to see what port it is set to by default to make VC use it instead) Or I configured the OPC server incorrectly ( as in I think I have the server up but it might not actually be up). Sorry ahead of time for my lack of understanding of both of these software. Any advice would be appriciated