>We are running around in circles. Give a full and >complete description of the bus and what yau are >actually doing to it or I leave this discussion.


Yep we are , Please see I have a 110V dc battery which is galvanically isolated to 24v dc and this is what available to me *WITHOUT* any reference from its body frame or any Hell or HEAVEN or EARTH .I used another 24-24 DC-DC conv to b'come double sure RIGHT . Now I wanna ask how to wire up 485 network which is un referenced or floating? any special ways any special chips for handling High common mode signals .


Kindly/