Offshore oil and gas platforms require safety-shutdown systems which meet or exceed the reliability of land-based systems. Programmable logic controllers configured in duplication or triplication schemes improve safety-system reliability, increase versatility, accelerate project scheduling, and reduce instrumentation costs. The main safety systems on a platform are: process/utilities alarm and signaling; emergency shutdown; fire-and-gas detection; heating, ventilation, and air conditioning; event recording and data acquisition; man-machine interfacing. Although such functions are traditionally performed by discrete-logic hardware, in the project described, programmable logic controllers perform the first four functions and personal computers perform the remainder.
Applying PLCs and PCs in offshore platform safety shutdown systems
Die Anwendung von PLCs und PCs in Offshore-Platform-Sicherheitsabschaltsystemen
InTech ; 33 , 9 ; 61-64
1986
4 Seiten, 3 Bilder, 14 Quellen
Article (Journal)
English
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