You’ve invested in automation, and your SCADA or MES system now sends alerts for everything—temperature deviations, motor faults, vibration changes, filter differentials. But there’s a downside: alert fatigue.
When operators see too many alerts, they start to ignore them. The truly urgent ones blend into background noise. In process plants—where safety and quality are on the line—this is a dangerous situation.
Here’s how to prevent alert fatigue while still getting the visibility your plant needs.
Prioritize by Severity and Context
Not all alerts should be treated equally. Use a tiered alerting system that assigns levels based on impact:
Critical – Immediate safety risk or production loss
Warning – Deviation that could cause a future fault
Informational – Operational data or trend indicator
Each level should have its own delivery rules. Critical alerts might trigger flashing HMIs and SMS notifications. Informational alerts may only show on dashboards or reports.
By segmenting your alert load, you help operators focus on what matters most.
Suppress Alerts During Planned States
If a machine is undergoing maintenance or in startup mode, you don’t need alerts about line speed, temperature, or fault resets. Configure your control system to recognize these operational states and suppress irrelevant alerts.
This prevents flooding the system with known, non-actionable signals—especially during shift changes or power-ups.
Bundle Related Alerts Into a Single Event
Instead of sending five separate alerts when a kiln fan, blower, and burner all trip, create an event packet. Your system should recognize that these components are linked and bundle the alerts into one structured message.
For example: “Zone 3 shutdown sequence initiated — 3 assets affected.” This tells the operator what’s happening in context, without overwhelming them.
Use Time-Based Alert Spacing
Some alerts don’t need to repeat every 5 seconds. Configure re-alert timing based on criticality:
Critical: Repeat every minute until acknowledged
Warning: Repeat every 10 minutes
Informational: One-time display or dashboard summary
This helps ensure that repetitive non-critical alerts don’t desensitize your crew.
Give Operators Alert Control Within Limits
Let experienced operators configure which alerts they see at their station, within boundaries set by engineering. For example, they might silence a recurring low-priority vibration alert on an idle line — but they can’t mute safety-critical gas flow alarms.
This autonomy reduces frustration and shows trust in frontline judgment.
Train Teams to Acknowledge and Act
No alert system is complete without a human response. Train teams to:
Acknowledge alerts promptly
Follow up with logged comments
Escalate critical alerts immediately
Track average acknowledgment times and use the data to reinforce expectations.
Final Word
Alert fatigue is a human problem caused by system design. By customizing alerts for relevance, urgency, and context, you build a system your operators trust — and respond to. In process plants, that’s not just efficiency — it’s safety.
