PLAT SURVEILLANCE MONITORING AND CONTROLLING DEVICE

PURPOSE:To operate a plant by preventing accident generation due to abnormal control of a process control due to a misinput of process data because of sensor abnormality. CONSTITUTION:Characteristics data for a sensor capable of judging the abnormal state of the sensor itself is stored in advance. W...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	UTSUGIDA HIROYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	PURPOSE:To operate a plant by preventing accident generation due to abnormal control of a process control due to a misinput of process data because of sensor abnormality. CONSTITUTION:Characteristics data for a sensor capable of judging the abnormal state of the sensor itself is stored in advance. When a process data from a sensor is input, the process data is checked according as the sensor characteristics data for the process data. If, as the result, this process data is judged abnormal, hen the abnormality information is given to a plant monitoring function 4 and a plant control function 5, and if necessary, the sensor characteristics data is maintained.