Dynamic Alarming With LogMate and OASYS-AM

Automatic Alarm Modification

Dynamic alarming is the automatic modification of alarms based on process state or conditions. These advanced methods are used when basic alarm designs do not achieve the performance goals stated in the alarm philosophy.

LogMate Alarm Management Software from TiPS is a complete alarm management infrastructure with facilities for archival, analysis, trending, reporting, change management, rationalization, and notification. The OASYS®-AM Operator Advisory System from UReason is targeted at dynamic alarm reduction and operator advisory alerts, including play-back, pattern mining, rule induction, real-time cause-effect analysis, state detection, topology reasoning, and interactive decision trees. Together, they deliver better plant condition alerts and advisory information, which empowers them to maximize production, safely and consistently.

State-Based Alarming

State-based alarming modifies alarm set point, priority or suppression status based on defined operating states for equipment or processes. Operating states are often determined by:

Status of a logical variable
Defined process variable which reaches a specific limit
Logic that looks at many variables and indicators
Operator selection

Management and Modelization Techniques

OASYS-AM provides a rich combination of tools and modelization techniques to implement models and state diagrams outside the DCS. These features allow building dynamic alarming systems where the system is aware of the state of any equipment and can automatically decide to shelve or unshelve alarms depending on the equipment state.

Benefits of Dynamic Alarm Reduction

The OASYS-AM dynamic alarming solution delivers significant benefits within only a few weeks:

Reduce risk of human injury and incidents.
Reduce cognitive load for the operators
Avoid plant shutdown, lost product and associated costs
Better understanding of current process state
Avoid nuisance alarms, improved fault tracing
Alarm reduction, reducing operator’s cognitive load
Reduce risk of critical alarm miss, or acknowledge by mistake

Dynamic alarming is a valuable technology to use and is the only solution for many alarm management issues, such as suppressing alarms on equipment that is intentionally shutdown.

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DYNAMIC ALARMING

LogMate® Alarm Management Software

Automatic Alarm Modification

State-Based Alarming

Management and Modelization Techniques

Benefits of Dynamic Alarm Reduction