I am looking for a cost effective solution for a small amount of remote IO (aprox 12 IO) at each of about 16 locations. The furthest remote IO location will be about 3500 feet from the master control point. The locations are out doors, and interconnecting wiring needs to be direct buried. Power for the remote IO equipment will be 110 VAC, which will need to be run in parallel with the remote IO fieldbus. The remote IO is slow to change, so response time need not be very fast. Wireless is not an option due to metal structures in the area that would interfere with the RF signals.
Will appreciate any recommendations that you would have, and/or experiences (pro or con) with any of the various fieldbus for remote IO.
Will appreciate any recommendations that you would have, and/or experiences (pro or con) with any of the various fieldbus for remote IO.