Data processing: generic control systems or specific application – Generic control system – apparatus or process – Having protection or reliability feature
Reexamination Certificate
2003-12-16
2010-10-12
Jarrett, Ryan A (Department: 2121)
Data processing: generic control systems or specific application
Generic control system, apparatus or process
Having protection or reliability feature
C700S021000
Reexamination Certificate
active
07813820
ABSTRACT:
Controller capable of executing non-safety-related control logic. A safety module is added to the controller in order to increase the safety-integrity level of a control system. The controller is able to execute safety-related control of real-world objects. Such a control system may exist at an offshore production platform or in a hazardous area of a chemical plant.
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Andreas Schenk. “SIMATIC S7-400F/FH: Safety-Related Programmable Logic Controller”. SAFECOMP 2000, LNCS 1943 (2000): 286-293.
Gunnmarker Mats
Hansen Kai
Opem Audun
ABB AS
Franklin Eric J.
Jarrett Ryan A
Venable LLP
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