Abstract: Error information are formed in respectively assigned dependability system sub-modules from error reports of program control modules in a job-oriented manner and are transmitted to a system dependability sub-module. These reports are compiled in the latter based on defined order and criteria. The records are then forwarded in a system dependability sub-module-associated data format to a signaling sub-module which is provided in an administration data server, a signaling distribution file and a signaling format file with whose assistance signaling information, from which error texts that can be output to display equipment are formed and assigned to the signaling sub-module.