УСТРОЙСТВО ОБРАБОТКИ С ЦЕПЬЮ ОТКЛЮЧЕНИЯ

摘要

A process device (12) for use in a process control system includes output circuitry (60) configured to couple to a process control loop (18). The output circuitry controls electrical current through the loop (18). Loop override circuitry (62) is configured to override operation of the output circuitry (60) and set the electrical current in the loop (18) to a desired level.