I just tried using WinTRiLOGI E10 mode to connect to the E10-npn+. I found out that the "Detect ID" don't work in RS485 mode, possibly due to the turnaround delay of Auto485 to catch the Ctrl-E properly.
But when I manually enter the known ID and then I was able to connect to the PLC to perform online monitoring or program transfer using 9600,8,n,1. You may like to give that a try.