I've got a SLC 5/03 that is connected to a PV 550 (2711-B5A2). I can plug the 1747-PIC into the PV and see both the PV and SLC on the DH 485 network. When I plug the 1747-UIC into the PV, I can see the SLC on the network, but not the PV. I would prefer to carry the UIC in my bag rather than the bulky PIC, but I need to resolve this issue. I searched all weekend, but haven't found any information.