A detecting element used for a detecting device for detecting a target substance in a sample by utilizing plasmon resonance. This method requires thermal bonding between the reinforcement fibers and the outer surface of the thermoplastic storage vessel while the interior cavity of the storage vessel is being pressurized. Each random access code is differently mapped to at least one additional information element according to a class of a cause for which a corresponding random access procedure is triggered, and the additional information elements are mapped to different ranges of random access codes according to the classes of the cause. In a case wherein fault-free operation is not confirmed, the master processor identifies a faulty one of the slave processors, disables the faulty slave processor and initiates operation of a fault-free one of the slave processors to control the operations of the faulty slave processor in addition to the operations of the fault-free slave processor.