Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1983-04-14
1985-09-24
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular system function
340506, 340511, 340518, 340657, 340661, G08B 2300
Patent
active
045435677
ABSTRACT:
In a method for controlling output of alarm information in a system for monitoring a plant wherein process variables including analog type process variables at respective sensing points in the plant are sampled and each of the sampled analog type process variables is compared with a normal range limit value for determination as to whether it is within a normal range or within an abnormal range, an alarm limit level is determined in accordance with changes that have occurred in the process variable during the latest sampling interval. Output of alarm information is permitted in connection with the process variables that have a priority level whose value is higher than the value of the alarm limit level.
REFERENCES:
patent: 3665399 (1972-05-01), Zehr et al.
patent: 3964018 (1976-06-01), Strait et al.
patent: 3964302 (1976-06-01), Gordon et al.
patent: 3988730 (1976-10-01), Valker
patent: 4001785 (1977-01-01), Miyazaki et al.
patent: 4222041 (1980-09-01), Von Tomkewitsch et al.
patent: 4251769 (1981-02-01), Ewert et al.
patent: 4459583 (1984-07-01), van der Walt et al.
Kurihara Kiyoshi
Shirata Shigenobu
Crosland Donnie L.
Tokyo Shibaura Denki Kabushiki Kaisha
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