What are the most common SCADA status categories?

• A. Operating, Faulted, Maintenance
• B. Operating; Faulted
• C. Maintenance; Repair
• D. Faulted; Line issues

Answer: (A)

In SCADA status tracking, you want simple, mutually exclusive states that reflect current condition and what needs to be done. The three most common are operating, faulted, and maintenance. Operating means the asset is functioning normally and delivering expected outputs. Faulted signals an abnormal condition or failure that needs investigation and repair. Maintenance indicates the asset is out of service for planned work or preventive maintenance, and while it’s not in normal operation, it’s accounted for in planning and monitoring.

These three cover the everyday run state, unexpected problems, and scheduled downtime, which helps operators quickly triage alarms, assign repairs, and schedule resources. On dashboards you’ll often see green for operating, red for faulted, and yellow for maintenance, reinforcing the quick interpretation.

Other options mix in specific fault types or omit a general operating state, which makes them less representative for standard monitoring and workflow management.