Process facility monitoring method including transformation of s

Details Process facility monitoring method including transformation of s Process facility monitoring method including transformation of s

1991-10-07

1993-10-12

Harvey, Jack B.

Boots, shoes, and leggings

364550, 376216, G21C 736

Patent

active

052531864

ABSTRACT:
A system for a process facility monitors the execution of a procedure in which steps are defined with associated conditions. Each condition is one of an initial condition, sequential condition or constraining condition. While constraining conditions are checked for violations during several steps, sequential conditions are checked only during an associated step. The sequential conditions may be transformed into constraining conditions for subsequent steps by setting a transform flag either prior to execution of the procedure or during execution of the procedure in response to an operator request. Once a transformable sequential condition has been met or the step associated therewith has been completed, an enable flag is set making the sequential condition a transformed condition which is checked at the same time as the predefined constraining conditions.

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