FIELD: technological processes.
SUBSTANCE: invention relates to means for technological processes control. Disclosed are methods and apparatus for long range RFID communications in a process control system. Example apparatus includes radio-frequency identification tag (300, 306) communicatively coupled to field device (122) of a process control system. Radio-frequency identification tag has processor (308), onboard memory (310), and antenna (312). Onboard memory stores data received from the field device to be communicated to a radio frequency identification reader. Power is to be provided to the processor and the onboard memory from control system power associated with the field device.
EFFECT: technical result consists in expanding the arsenal of means for the same purpose.
20 cl, 11 dwg
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