Which practice is a best practice for SCADA alarming configuration to avoid nuisance alarms?

Which practice is a best practice for SCADA alarming configuration to avoid nuisance alarms?

• A. Rationalization of alarms and alarm descriptions
• B. Disable all non-critical alarms
• C. Increase sampling rate indiscriminately
• D. Remove all alarm categories

Answer: (A)

Rationalizing alarms and alarm descriptions is about cleaning up and standardizing how alarms are defined and presented in the SCADA system. By reviewing which alarms are truly needed, removing duplicates, consolidating related conditions, and using clear, consistent alarm text with defined priorities, you prevent non-actionable or repetitive alerts from flooding operators. This makes the alarm set more meaningful, reduces nuisance alarms, and helps operators respond quickly to genuine issues. You can also set sensible thresholds, deadbands, and suppression rules to avoid chatter and ensure alarms reflect actual deviations rather than harmless noise. Disabling all non-critical alarms would risk missing important events. Increasing sampling rate indiscriminately tends to raise noise and nuisance alarms rather than improve quality. Removing all alarm categories eliminates the organized structure that helps operators prioritize and triage alerts.

Rationalizing alarms and alarm descriptions is about cleaning up and standardizing how alarms are defined and presented in the SCADA system. By reviewing which alarms are truly needed, removing duplicates, consolidating related conditions, and using clear, consistent alarm text with defined priorities, you prevent non-actionable or repetitive alerts from flooding operators. This makes the alarm set more meaningful, reduces nuisance alarms, and helps operators respond quickly to genuine issues. You can also set sensible thresholds, deadbands, and suppression rules to avoid chatter and ensure alarms reflect actual deviations rather than harmless noise.

Disabling all non-critical alarms would risk missing important events. Increasing sampling rate indiscriminately tends to raise noise and nuisance alarms rather than improve quality. Removing all alarm categories eliminates the organized structure that helps operators prioritize and triage alerts.