Process field device with radio frequency communication

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

2011-06-07

2011-06-07

Crosland, Donnie L (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular coupling link

C340S508000, C340S506000, C340S539100, C700S009000

Reexamination Certificate

active

07956738

ABSTRACT:
A field device for use in an industrial process control or monitoring system includes terminals configured to connect to a two-wire process control loop. The loop carries data and provides power to the field device. RF circuitry in the field device is provided for radio frequency communication. A power supply powers the RF circuitry using power received from the two-wire process control loop.

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