| 摘要 |
PURPOSE:To decrease cost and to facilitate the operation, by designating the contents of plural number of work by combining the designation of a light pen and the mode setting switch. CONSTITUTION:When the 3rd picture of the CRT display unit is designated by a light pen 4, data related to the position of designation are input to a computer main body 1 as an interrupt signal through a CRT controller 2. ON/OFF condition of a mode setting switch 5 is suitably read while operating interruption caused by the designation of the light pen 4. The computer proper 1 reads the condition of the mode setting switch 5 and if it is ON condition, picture of voltage recording of a substation A is displayed. If it is OFF condition, for example, the picture of electric power recording of a substation is displayed. |
