Patent ID: 8331870

Claim:
Method for identifying noise sources for automation devices which have a multiplicity of input/output modules which are coupled to one another by means of a data bus and at least one of which is set up as a radio input/output module for radio data communication, comprising the steps of: repeatedly checking availability of transmission channels for radio data transmission with said at least one radio input/output module; storing the availability of a sequence of transmission channels in a channel list (CL); reading the availability of a sequence of transmission channels currently stored in the CL of the at least one radio input/output module; comparing the availability of the sequence of transmission channels with a number of noise source type channel patterns (CP) which are stored and each of which correspond to one of a number of different noise sources, and identifying a noise source based on a prescribed minimum similarity of said sequence of transmission channels stored in the CL with one of the stored CP.