FIELD: electric engineering.
SUBSTANCE: field device comprises multiple leads connected to double-wire circuit of process control. Module of shunt control connected between multiple leads and arranged with the possibility to control value of current passing between multiple leads. Digital communication bus connected to circuit of wireless communication. Besides circuit of wireless communication is configured for operation at variable levels of power in compliance with excess power that arrives from field device. Module of communication power limitation connected to module of shunt control. Besides module of communication power limitation is arranged with the possibility to limit power provided along bus of digital communication.
EFFECT: increased reliability and expansion of wireless communication functionality for field devices.
15 cl, 4 dwg
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