Abstract: A diagnosis system for a plant, in particular for a power station plant, such as for a turbo-generator of a steam turbine plant, having a number of interacting plant parts, includes a module being associated with the plant parts for on-line acquisition of measured values and for controlling and processing the measured values. A data bus is connected to the module through interfaces for the transmission of plant-relevant measured values. A coupling module is connected to the data bus for requesting and passing on measured values. An administration module is connected to the coupling module for distribution of the measured values. A number of analysis modules are connected to the administration module for content-dependent processing of the measured values and for outputting characteristics derived therefrom. A memory module is connected to the analysis modules for storing the characteristics from at least one of the analysis modules.

Abstract: The method and the data processing system of the invention monitor the operating states of a technical plant. The operating states of the technical plant are characterized with measured values measured or modeled at a lowest level of the system. The plant is monitored with the measured values and with technological knowledge relevant to the operation of the technical plant stored in a memory of the data processing system. First, the measured values are processed and converted into plant symptoms specific of the associated operating states. Next, a diagnosis of the operational state of the plant is established from the plant symptoms and a significance value is assigned to the diagnosis, or a significance value is first assigned to the plant symptom and the diagnosis is prepared therefrom. The assignment of the significance is based on the technological knowledge. The diagnostic information is thus rated before it is appropriately forwarded to the user surface.