text: <s>[INST] PF 700s Phase II unicast/multicast support in RSLogix v18 I replaced a PF 700s Phase II drive and Logix is returning an I/O error that says it doesn't support unicast/multicast data. The old drive was firmware version 4.001 and the new one is version 4.002. Otherwise, everything is the same. I used the 20-COMM-E from the old drive and have kept all the parameters the same. Is there something I missed or something I can change to fix this? [/INST] Hi, and welcome to the Forum ! Please, post the EXACT error message, or better a screenshot... it will be easier for Forum users to start a research on it. Also please post some informations about your Ethernet/IP network, configuration, Switches, IP address, modules used, 20-COMM-E firmware.... ...all what you can add to clarify things could help in trying to solve. :smileywink: - fuzzy logic \\n </s>