| 摘要 |
<p>PURPOSE:To avoid the input of abnormal data by limiting the input of data to the same data item when plural display devices are displaying the same screen. CONSTITUTION:When data are fed, an interactive screen is selected by means of a keyboard 43 of a display device 4a. Then the new data is written into a prescribed item. A setting key is pushed, an interruption is applied to a central processing unit 1 to have a connection between the unit 1 and the device 4a. In this case, the unit 1 performs no connection although it receives interruptions from other display devices 4b, 4c, etc. as long as these interruptions are applied to the same data of the same screen. The inhibition of connection is displayed for the display device with which the connection is inhibited. This system ensures the effective input of data with no disturbance.</p> |
