Additional Information Concept of alarm peak/bottom difference Peak Alarm range Threshold Bottom Alarm range: A value falls below either “Difference between threshold and peak” or “Difference between threshold and bottom” Judgment example) “Difference between peak and threshold” /Threshold Example) (9000-5000)/5000=0.8 ⇒ 80%OK (7500-5000)/5000=0.5 ⇒ 50%OK (5200-5000)/5000=0.04 ⇒ 4%NG Peak Alarm value: 5500 For example, if alarm warning is performed when threshold is 5000 and at ± 10%. Alarm is output when threshold is in range from 4500 to 5500. Alarm range Threshold: 5000 Value for judgement:
4500 “Difference between threshold and bottom” /Threshold Example) (5000-100)/5000=0.98 ⇒ 98%OK (5000-3000)/5000=0.4 ⇒ 40%OK (5000-4900)/5000=0.02 ⇒ 2%NG Bottom * Once the above condition is met even for a short time, alarm is output but the error status is not maintained. Note) ・ When a value falls within the alarm range, error log is output, and the indicator color on the main screen changes to yellow. If the value goes to the normal range shortly afterward, the indicator returns to green which shows the normal status. ・ An error log is output only once when the value goes into the alarm range from the normal range. 43