FIELD DEVICE WITH DYNAMICALLY ADJUSTABLE POWER CONSUMPTION RADIO FREQUENCY COMMUNICATION

摘要

A field device (14) for use in an industrial process control or monitoringsystem (10) includes terminals (56H, 56L) configured to connect to a two-wireprocess control loop (16) configured to carry data and to provide power. Inone embodiment, RF circuitry (22) in the field device (14) is configured forradio frequency communication having variable power consumption. In anotherembodiment, the RF circuitry (22) is coupled to the field device (14) througha separate digital communication bus (100) . A method of modulating the powerof RF communication based upon a process communication signal is also provided.