DATA TRANSMISSION METHOD AND DEVICE

摘要

The invention relates to method for transmitting data in a redundant automation system (2), comprising a plurality of data transmission units (6) and a plurality of data processing units (4). The aim of the invention is to improve said method in such a way that data can be transmitted in an especially efficient manner with the hardware resources available. To this end, a data flow characteristic of the data transmission is continuously monitored on the respective data transmission units (6) and, depending on the data flow, is switched between the various operating modes in such a manner that an operating mode is adjusted when a synchronized data flow is detected on at least two data transmission units (6), said operating mode having a higher availability vis-à-vis the operating mode with a defective or one-way data flow on one of the data transmission units (6).