Development and realization of real-time fault diagnosis system based on Deltav

A fault diagnosis system based on DeltaV was designed to solve the problem of the emergence system embedded in DeltaV and make the butadiene product equipment work efficiently. 32 important monitor points were extracted by using expert knowledge, and the database technique was used to construct the knowledge database. A fault diagnosis system based on DeltaV and running on the host computer was designed by VB (visual basic). The system can diagnose fault real-time and give alarm to the operator through operation interface station, and it is well expandable. The system have put into operation, and meets the need of safe production.