Patent attributes
A one-channel transmission of information on a bus system within an automation system is provided. Data transmission, in compliance with safety integrity level 2 according to IEC 618508, is achieved with reduced hardware outlay. The information to be transmitted via the bus system contains net data, which is present within a processing unit in two channels in the form of a first data set and in the form of a second data set that differs from the first data set at least in the form of representation. The processing unit generates a transmission telegram suitable for one-channel transmission on the bus system from the two data sets, whereby the net data present in the form of the first data set is stored in a first data area of the transmission telegram and a checksum generated on the basis of the second data set is stored in a second data area of the transmission telegram.
