Process field device with radio frequency communication

Details Process field device with radio frequency communication Process field device with radio frequency communication

G - Physics

05

B

G05B 19/418 (2006.01)

Patent

CA 2568986

A field device (14) for use in an industrial process control or monitoring system (10) connects to a two-wire process control loop (16). The loop (16) carries data and provides power to the field device (14). RF circuitry (22) in the field device (14) is provided for radio frequency communication. A power supply (18) powers the RF circuitry (22) using power received from the two- wire process control loop (16).

La présente invention a trait à un dispositif fonctionnel (14) destiné à être utilisé dans un système de commande ou de contrôle de processus industriel (10) relié à une boucle de commande de processus à deux conducteurs (16). La boucle (16) transporte des données et fournit de l'énergie au dispositif fonctionnel (14). Un circuit radiofréquence (22) dans le dispositif fonctionnel (14) est prévu pour la communication radiofréquence. Une alimentation (18) alimente le circuit radiofréquence (22) à l'aide d'énergie reçue de la boucle de commande de processus à deux conducteurs (16).

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