Title:
LIQUID LEVEL CONTROLLER
Document Type and Number:
Japanese Patent JPH01266608
Kind Code:
A
Abstract:
PURPOSE:To curtail the number of connecting lines between a liquid level control means and an input/output means, and also, to give and receive many data by connecting both of them by a serial data transmission line. CONSTITUTION:Setting signals such as a mode signal of manual operation/stop/ automatic operation, etc., a pump selecting signal, etc., which are set by a console 7 being an input/output means are transmitted to a liquid level controller 6 being a liquid level control means through a serial data transmission line 8. On the other hand, data of a pump operating signal, an abnormality signal, etc., from the liquid level controller 6 are transmitted to the console 7 through the serial data transmission line 8 in the same way. In such a way, the liquid level controller 6 and the console 7 are connected by the serial data line 8 and two pieces of power source lines, and the number of connecting lines is curtailed. Also, by using the serial data line, many data can be given and received.
Inventors:
GOTO KOKI
IMASAKA IKUO
IMASAKA IKUO
Application Number:
JP9636888A
Publication Date:
October 24, 1989
Filing Date:
April 19, 1988
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
G05D9/12; (IPC1-7): G05D9/12
Attorney, Agent or Firm:
Nakamura Shigenobu
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