| 摘要 |
<p>PURPOSE:To align graduation positions, to make graduation numerals easy to see, and to discriminate upper/lower limit values of a process instantly, so as to manage safe and correct driving of a plant such as purification plant or sewage treatment plant, when a plurality of trend graphs are displayed integratedly on a same screen. CONSTITUTION:Numerals of graduations are divided into divisible values from upper/lower limits of process values, while the length of scale axis in the vicinity of upper/lower limits of a graph is adjusted to the upper/lower limits of the process values. By allocating graduations and graduation numerals, and by displaying a lateral axis within a trend display region from scale upper/lower limits, the target is achieved.</p> |
