/history) is the connectivity-reliability view — uptime, outages, and per-device timelines — built entirely from the plugin’s own local database (not a live PADS4 call), populated by a background status monitor. Data is retained for 3 months; the date pickers won’t let you go further back.
- Date range: defaults to the last 30 days, clamped to the 3-month retention window.
- Summary cards: devices with data in range, total outage incidents (and how many are still ongoing), and total recorded offline time.
- Devices table: per-device uptime percentage, number of status checks, incident count, and total offline time. Search by name or device ID; sort any column.
- View chart: opens a modal with a step-line chart of that device’s online/offline status over the selected range, plus the percentage of checks that were online. Long ranges are automatically downsampled for readability (noted in the modal when this happens).
Uptime percentage is the share of periodic status checks that found the device online — it is not wall-clock uptime. Only completed outages (both a start and an end recorded) count toward the offline-time totals; an outage still in progress is flagged separately as “ongoing” and excluded from the duration sum.