Title:
PROGRAMMABLE CONTROLLER
Document Type and Number:
Japanese Patent JPS61163401
Kind Code:
A
Abstract:
PURPOSE:To carry out a suitable control for an object controlling a continuous quantity by performing a sequence control and an AS control simultaneously by using two CPUs. CONSTITUTION:After an initial processing, a CPU stores input data of an I/O memory in a RAM15 and thereafter a user program of a user memory is executed. A CPU12 estimates a parameter of a controlled system 7 from a controlled variable and a past manipulated variable from the data of the RAM15. Based on a future manipulated variable sequence, the most suitable manipulated variable is selected to decide it. At this time, since the data of a new I/O memory is given to the RAM15 from the CPU1, based on this, an ASC processing is performed. When the CPU1 reaches a processing stroke of the ASC block during the user program performing, the CPU12 opens a bus line 2 and stops the CPU1 temporarily. Then, the newest manipulated variable data is written in the I/O memory. The line 2 is returned to the CPU1 to return to the ASC processing and the CPU1 continues to perform the user program.
Inventors:
YOSHIKAWA NORIO
Application Number:
JP469585A
Publication Date:
July 24, 1986
Filing Date:
January 14, 1985
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
G05B13/04; G05B17/02; G05B19/05; G05B21/02; (IPC1-7): G05B13/04; G05B17/02; G05B19/02; G05B21/02
Attorney, Agent or Firm:
Yoshiki Okamoto