| 摘要 |
<p>PROBLEM TO BE SOLVED: To make the setting of the operation restriction condition of a control object process changeable while executing multivariable control without changing the process data base of a basic control base by storing the set value of the operation restriction condition in a data storage means independent of other process data such as an alarm set value. SOLUTION: This control system 1 is provided with the data storage means 12 so as to store restriction condition data used in a multivariable control system separately from the process data base 10. The execution module 13 of the multivariable control system fetches the process data and respective set values of a process 2 from the process data base 10 as data D1013. Also, the restriction condition data D1213 used in the multivariable control system are fetched from the data storage means 12. Based on the fetched data, in the execution module 13, control logic by the multivariable control system is computed and the controlled variable of the process 2 is decided. The arithmetic result is stored in the process data base 10 as the data D1310.</p> |
