PLC on 800xA via Ethernet IP

A potential customer has asked this question regarding PLC connectivity to 800xA:

Has ABB done any migration with the SLC EtherNet/IP scanner (1747-AENTR)? This puts the SLC PLC on Ethernet. I would like to know if we there is a solution where a redundant CI873 could communicate on the same network, or will we need to put ControlLogix in between as a de-facto Pyramid Integrator.