Title:
PLANT CONTROL SYSTEM
Document Type and Number:
Japanese Patent JPS61267801
Kind Code:
A
Abstract:
PURPOSE:To attain the even operation among plural motors by using an operating state deciding means to operate these motors in the order of smaller working time and then to stop them in the order of larger working time respectively. CONSTITUTION:The motors 4 are started and stopped by the operating command value 1 given from a host computer, etc. An operating state deciding means 6 is added together with a data table 9 containing the prescribed contents. Thus the working time is replaced for each motor 4 according to the operating state of the motor 4 to be controlled. At the same time, the trouble information is produced for replacement of the table 9. Furthermore a maintenance information producing means 7 is provided together with a start/stop control means 8. The means 7 delivers a maintenance message to a CRT 10 for the motor 4 whose working time reaches the working time set previously to the table 9. Then the means 6 adds the maintenance information to the replaced data. The means 8 decodes the stoppage of the motor 4 for control and stores the corresponding data in the table 9.
Inventors:
MATSUMOTO HISAO
Application Number:
JP11141985A
Publication Date:
November 27, 1986
Filing Date:
May 22, 1985
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G05B11/18; (IPC1-7): G05B11/18
Attorney, Agent or Firm:
Masuo Oiwa