Patent ID: 9578446
Date: 2017-02-21
CPC Classifications: H04W

Claim:
1. A method for wireless data transmission between first and second transmission participants comprising the steps of: alternately a first protocol and a second protocol are used for wireless data transmission between the first and second participants, wherein: the first protocol serves for unidirectional data transmission and the second protocol for bidirectional data transmission the first participant is a field device of process automation technology for logging and determining process relevant data; the first protocol serves for the transmission of data from a memory unit provided in the field device to the second participant in a first interval, the memory unit is connected with an operating electronics of field device; the second protocol serves during a second interval for bidirectional data transmission for ascertaining data, which is to be exchanged from the field device to the second participant by the means of the first protocol, and during a third interval, the data are written from the operating electronics of the field device into the memory unit.