| 摘要 |
<p>PROBLEM TO BE SOLVED: To store data scrupulously when required even without making the storage capacity of a recorder for data storage large and also to perform trend display. SOLUTION: Data is normally fetched in a 200-millisecond collection cycle and temporarily stored in a trend data collecting part (ST1 and ST2). Meanwhile, a control status, for instance, whether a digital signal T-101D made to correspond to an alarm, etc., is ON or not is discriminated (ST4), and the temporarily stored collection data are thinned every 200 millisecond during OFF (ST5), recorded in a data storing part and also subjected to trend display (ST6 and ST7). When the signal T101D becomes ON (ST4), the collection data temporarily stored every 200 millisecond are recorded in the data storing part as they are and also subjected to trend display (ST6 and ST7).</p> |
