WIRING FAULT DETECTION, DIAGNOSIS AND REPORTING FOR PROCESS CONTROL SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an automatic wiring fault detection, diagnosis and reporting technique within a communication segment of a process control system that allows easy grasping of wiring fault detection. SOLUTION: The wiring fault detection, diagnosis and reporting technique enables linking devices within the process control system to measure electrical characteristics of a segment protocol bus and electrical characteristics of signals transmitted through the protocol bus. The technique connects a signal line of the segment protocol bus to one of a plurality of measurement blocks within a wiring fault detection part. The one of the plurality of measurement blocks measures an electrical characteristic associated with the segment protocol bus and sends the measured electrical characteristic to a wiring fault diagnostic manager. The wiring fault diagnostic manager analyzes the measured electrical characteristic to determine a type of the wiring fault and reports the type through a user interface. COPYRIGHT: (C)2008,JPO&INPIT