DataHub

Maintenance

Log maintenance work and track equipment baselines.

The Maintenance section covers fleet health monitoring, work records, and golden baseline tracking.

Fleet health

Open Maintenance (/maintenance) and select the Health tab for a plant-wide equipment view.

KPI / columnMeaning
Fleet HealthAverage health score across active devices
Devices WatchedActive devices; online count shown as subtext
Active AlarmsSum of open alarms on watched devices
Weakest DeviceLowest health score among active devices
Health (per row)0–100 score — penalties for offline (−30), each active alarm (−15), alarm churn, and poor data quality
MTBF / MTTRMean time between failures and mean time to recover from alarm history
Data QualityPercentage of GOOD-quality samples in the recent window

Use Health for daily triage; open a device link to investigate tags, rules, and connectivity. Work performed on assets is logged separately (see below).

Requires maintenance.read.

Maintenance records

Navigate to Maintenance (/maintenance) to log work against assets.

  1. Click Add to create a maintenance record
  2. Select the plant, machine, or device
  3. Record work type, description, dates, and parts used
  4. Link spare parts from inventory when applicable

Maintenance records require maintenance.create permission.

Baselines

Baselines (/baselines) store golden profile envelopes (p05–p95) learned from tag history while the process runs well — not manual maintenance measurements.

Use baselines with GOLDEN_PROFILE rules to detect deviation from known-good operating conditions. See Rules, alarms, and actions.

Baseline snapshots are plant-scoped. Operators with maintenance.read can preview the learning window and record new baselines from the baselines page.

Permissions summary

ActionPermission
Log maintenance workmaintenance.create
Edit recordsmaintenance.update
Manage baselinesmaintenance CRUD on /baselines

Parts usage

When logging maintenance, you can consume spare parts from inventory. Stock quantities update automatically with inventory.adjust permission.