I hope this is a case where the questions is more difficult than the answer. If i communicate from a CompactLogix 1769-L32E to a PowerFlex 400 drive(s) over Ethernet/IP and the PF-400 has a Communications Adapter module installed (with required cover) do i need to additionally have "PC to Drive communication with Drive Explorer Lite", or can i simply communicate thru the PLC via RSLOgix 5000?