| 摘要 |
<p>PURPOSE: To accurately recognize the contents of abnormality even if abnormality is caused about thousands of times a day by deciding whether or not abnormality is caused and its contents on the basis of the detection result of a process controller, statistically processing the results, and generating and displaying a process alarm analytic screen. CONSTITUTION: This process monitor system detects the states of respective processes of a plant 10 to be monitored by the process controller 4, and decides whether or not abnormality occurs by a process monitor device 6 on the basis of the detection result of the process controller 4. Further, if the abnormality is caused, the abnormality contents are decided and the decision result is statistically processed to classify the abnormal process by previously set section contents. Then its occurrence frequency is found and the process alarm analytic screen is generated and displayed. Consequently, when process control over a large-scale plant is performed, an operator can accurately recognize abnormality contents even if abnormality is caused about thousands of times.</p> |
