Device Health tracks connectivity and responsiveness of registered devices. When health changes (offline, degraded, recovered), Nodlyn can trigger workflows automatically.
Health states
| State | Meaning |
|---|---|
| Online | Device responded within expected interval. |
| Degraded | Slow responses or partial capability failures. |
| Offline | No response after timeout threshold. |
Common patterns
- Offline → Notification + ticket creation via HTTP Request.
- Degraded → reduce polling rate with Write Variable backoff flag.
- Recovered → clear alert and log timestamp to global variable.