Procedure and device for energy-saving communication in building automation

摘要

Method for operating an apparatus, in particular an apparatus of a building automation system, comprising - generating a sequence of detection bits (48), - sending for the first time the sequence of detection bits (48) in a first slot of time (A, B, C) and at least send the detection bit sequence (48) a second time in a second time slot (A, B, C) temporarily separated from the first time slot (A, B , C), in which - the duration of the sending of the detection bit sequence (48) is shorter than an activation interval (40) of a receiver and - the duration (46) of the sending of the sum of the first and at least of the second sequence of detection bits (48) corresponds at least to the duration of the activation interval of the receiver, characterized in that - between the respective time slots there is no transmission of a sequence of bits of detection and - the duration of the time slots (A, B, C) corresponds to the duration of the sending of the detection bit sequence (48).