| 摘要 |
<p>PURPOSE:To display a trend graph on a CRT display device automatically by inputting a trend item, a trend scale, and a trend time scale from a key input part. CONSTITUTION:Data inputted from a process data input part 1 is processed variously by a data arithmetic processing part 2 and stored 3. Then information set at the key input part 4 is respective items which are stored 3, trend values corresponding to the respective items, and the trend time scale. A data display processing part 5 performs the memory setting calculation of the trend items, corresponding trend scales, and the time scale on the basis of the set information and a calculation part 8 calculates a time scale display area in a CRT display area. The calculation results are stored 7 as fixed pattern of CRT trend display. A data display part 9 outputs data from an information part 7, reads data on variable parts corresponding to the respective trend items out of the storage part 3, and display them on a display device 6 periodically.</p> |
