Model Identification And System Analysis Based On DCS

Based on Symphony Distributed Control System provided by Industry Process Control and Simulation Lab of NCEPU, the dissertation develops an application software combined with communication between PC and DCS, model identification and system analysis. The dissertation first analyzes the applied signification of PC communicating with DCS, then studies theory of interface CIU and methods of communication through it. The paper compares several identification methods and selects three methods based on LS, and discusses the methods to analyze the control system. At last, three functions above are synthesized into software.