Title:
AUTOMATIC CONTROL UNIT FOR PROCESS
Document Type and Number:
Japanese Patent JP3251541
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control unit which can control the operation of a plant while maintaining high controllability according to accurate operation standards without any discrimination between a batch operation system and a continuous operation system.
SOLUTION: The unit 40 is a device which controls the operation of the plant 10 and is equipped with a storage means, a measured value acquiring means, and a control means, and the plant is operated through an operating means 32 of the plant to control the temperature of contents in a reactor 12 to a target value. The storage means stores a target value for temp., a set manipulated variable setting the quantity of manipulation and a set wait time prescribed as a delay time of control. The measured value acquiring means acquires the measured value of temp. from a thermometer 20 provided in the plant. The control means compares a measured value obtained by the measured value acquiring means with the target value read out of the storage means at intervals of a set wait time and reads a set manipulated variable out of the storage means if the measured value deviates from the target value to send a command for operating the plant by the set manipulated variable to the operating means provided for the plant.
Inventors:
Yoshiaki Furuya
Yasuhiro Matsushima
Yasuhiro Matsushima
Application Number:
JP30038897A
Publication Date:
January 28, 2002
Filing Date:
October 31, 1997
Export Citation:
Assignee:
Mitsubishi Chemical Engineering Corporation
International Classes:
G05B23/02; G05D21/02; (IPC1-7): G05B23/02; G05D21/02
Domestic Patent References:
| JP5257541A | ||||
| JP9114503A | ||||
| JP5676814A |
Attorney, Agent or Firm:
Kiyoshi Inagaki