CONTROLLER FOR CONTROLLING MULTI-INPUT MULTI-OUTPUT SYSTEM

PURPOSE:To add a process stabilizing control function, an additional state decision function, and a model selecting function by using optimum control parameters based on dynamic model identification due to time series data analysis of process data. CONSTITUTION:In an input part 1 to which process data is inputted, time series analog signals are selected and inputted successively for every variable through isolators 4...by a multiplexer 5. Plural data are read in by the multiplexer in a time very shorter than the sampling period, and the input value signal is converted to digital data by an A/D converter 6 and is taken into an arithmetic processing part 2 from a bus line 7. the arithmetic processing part consists of a central processing unit CPU 8, a memory 9, and a data storage file 10. A magnetic bubble memory or the like is used for the data storage file 10 to register and preserve parameters for execution of the control of process models, an optimum control gain, etc. and log data of the process.