Scale Azure IoT Hub from S2 to S3 tier, restart Databricks pipeline, trigger Power BI refresh, create OT Engineering work item for permanent root-cause fix, and notify shift operations.
Root Cause
PLC-GW-AUH-P2-RL2-07 firmware 4.1.7 activated a secondary MQTT topic, creating a duplicate telemetry stream that saturated Azure IoT Hub S2 tier capacity (52,800/50,000 messages) and stalled the Databricks steel-prod-telemetry-transform pipeline.
Business Value
AED 1.9M impact · 12 min estimated recovery
AI Confidence
93% confidence · 5-step correlation chain · 12 min investigation