Two wire digital sensor interface takes interface circuit power from the line to field bus controller optocoupler using bridge rectifier connected to line driver

摘要

A two wire digital sensor interface takes interface circuit power through an opto coupler from the input terminal (14) through a two wire line (16) and bridge rectifier (1)to the line driver (12) to send the analogue sensor (7) signal to the field bus controller (14) as binary data.