Diagnostic equivalent for widespread manufacturing system

In the case of diagnosed system with widespread characteristics, the elementary Diagnostic Equivalent Rd, considered as to be a standard object of observation, is an important facilitating factor. When the frequency of diagnoses has been determined for a standard subassembly, this equivalent permits to define the indispensable quantity and quality of simultaneously working diagnosers. Notions of diagnostic potential and diagnosability are proposed, based on systems-based definitions of knowledge and skills. The definition of a diagnostic tandem is introduced. The whole is illustrated by an application example in a MS conveyor.