Diagnostic system for use in a network of process control block of the diagnostic function, and process for the realization of diagnostics in a process control network.

摘要

"Diagnostic system for use in a network of process control block of the diagnostic function, and.Process for performing diagnostics in a process control network "it is a diagnostic system adapted to perform diagnosis devices and process in a network ofProcess control that has a plurality of process control devices interconnected so as capable of communication through a bus.In each of the devices is capable of performing a function of process control and communicate via the bus using scheduled periodic communications.The diagnostic system is provided in a first of the devices and includes a signal generator which produces a control signal for diagnosis.A device communicator configured to provide the control signal to a second diagnostic devices using scheduled periodic communications.And a receiver output signals adapted to receive an output signal developed by the second device in response to the control signal for diagnosis.The diagnostic system can use the output signal received to perform diagnosis or may send this signal to a central for diagnostic analysis.