From a business standpoint, FOUNDATION Fieldbus technology delivers savings in total installation costs. H1 Fieldbus reduces instrument wiring, which means less termination and fewer screwdriver turns. The technology reduces hardware requirements and lowers Capital Expenditures (CAPEX). FOUNDATION Fieldbus primarily reduces Operating Expenses (OPEX) through improved plant efficiencies, better asset management, and reduced maintenance requirements. Specific benefits of FOUNDATION technology include: reduced wiring, multi-variables from a single multi-channel field instrument, simpler integration and easier maintenance. Using Half Duplex RS485 hardware connection a two wire communication is possible.