Historian

The Namespace → Historian page visualizes the time-series you recorded by historizing tags, and exports it to CSV.

The Historian (/namespace/historian) — a time-series chart.

View a chart

1. Open the Filters panel.
2. Pick a Historized Tag.
3. Pick a Value Key (the field within the tag’s payload to plot).
4. Choose a Time Range (1m, 5m, 15m, 30m, 1h, 3h, 6h, 12h, 1d, 7d, 30d).

The chart renders the selected series and auto-refreshes every few seconds. Non-numeric values fall back to a timestamp/value table.

Filters → pick tag / key / range → the chart renders and updates.

Export to CSV

1. Open the Export dialog.
2. Select one or more tags.
3. Choose a date range (presets like Today / Last 7 days, or a custom range).
4. Export — the console downloads a CSV per tag, showing a per-tag progress bar.

Export dialog → select tags + date range → download with progress.

Doing this in code

The same data is available through the SDK — export historized tags as a CSV Blob, with optional bucketing and aggregation:

const blob = await sdk.historian.getHistoricalDataAsCSV(
  ['line1/oven/temperature'],
  startDate,
  endDate,
  'UTC',
  '1_hour',   // bucket interval
  'mean'      // aggregation
);

See SDK → Historian and the Historian concept.