Title:
CONTROLLER
Document Type and Number:
Japanese Patent JPS58132804
Kind Code:
A
Abstract:
PURPOSE:To simplify the constitution of a controller, by indicating one of two controlling means by indicators which indicate a measured value and a target set value and switching and setting displayed values by a manual and performing monitor and operation equivalent to those of plural indicating and operating parts by one indicating and operating part. CONSTITUTION:One controller incorporates two PID controlling operation arithmetic elements 13 and 14, and one display and operating part 12 is provided on the surface of the controller. A switching part 15 is provided between elements 13 and 14 and the display and operating part 12, and a push-button switch 7 of the display and operating part 12 is operated to set each switch of the switching part 15 to the A side, and the local set operation in the side of the element 13 is possible by a target set value manual operation dial 4 when the set mode is in the L side. Simultaneously, a measured value PV1 and a target set balue SV1 related to the side of the element 13 are indicated by a measured value needle 5 and a target set value needle 3 respectively. Thus, the button switch 7 is switched to perform monitor and operation equivalent to those of plural display and operating parts by one display and operating part 12, and the constitution of the controller is simplified.
More Like This:
Inventors:
TAKABORI YOUICHI
Application Number:
JP1492682A
Publication Date:
August 08, 1983
Filing Date:
February 03, 1982
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G05B23/02; G01D7/00; G05B11/00; G05B11/01; (IPC1-7): G01D7/00; G05B23/02
Domestic Patent References:
| JP55093001B |
Attorney, Agent or Firm:
Katsuo Ogawa