I am working on upgrading all of our PLC5's to Control logix. My current project has a PLC remote rack 500 feet away from the main rack. There is already a dh+ cable in place for the PLC out to the remote rack. I know the preferred method of connecting a remote rack in control logix is Ethernet, but due to the distance I was going to try and use the dh+ to save time and money, but having issues getting it to see the rack in my program. Is this even possible? Do I need to pull fiber out to this remote rack? Please let me know if I can do this and how to set up the communication's. Thanks