Title:
PILOT LAMP INTERFACE FOR SMALL CONTROLLER
Document Type and Number:
Japanese Patent JP2659166
Kind Code:
B2
Abstract:
PURPOSE: To unnecessitate individually installing a display for an industrial control module such as overload relay by providing a pilot lamp with a function outputting display identifiable by human eyes and display identifiable by a machine.
CONSTITUTION: Both information which can be read by humans on a low frequency modulation and information which can be read by the machine on a high frequency modulation, which is not visible by human eyes, are outputted from the pilot lamp 20. Namely, visible display obtained by the flickering of the pilot lamp 20 is directly outputted and character information, etc., outputs a high frequency signal invisible for humans. Modulating method by a high frequency may be bar-code-modulation which can be read by a bar code reader on the market.
Inventors:
KURISUTOFUAA JEI UIEROTSUKU
Application Number:
JP22466793A
Publication Date:
September 30, 1997
Filing Date:
September 09, 1993
Export Citation:
Assignee:
AREN BURATSUDORII CO INC
International Classes:
G05F1/10; G05B23/02; G08B5/36; H02P29/00; H03K17/78; H04B10/00; H04B10/077; H04B10/079; H04B10/116; (IPC1-7): G08B5/36
Attorney, Agent or Firm:
浅村 皓 （外３名）