SmartLogger3000 - LED Status Red Huawei — Datalogger Offline
At a glance
- Severity
- WARNING
- Domain
- MONITORING_COMM
- Reference standard
- IEC 61724-1
- Product / context
- SmartLogger Offline
What it means
The plant datalogger is offline and not transmitting data to the monitoring portal. Possible hardware fault, network connectivity loss, or power supply issue.
Probable causes
- Datalogger power supply interrupted (fuse, faulty power adapter).
- LAN/WAN connection lost (Ethernet cable disconnected, switch fault, router offline).
- SIM card data plan exhausted, expired, or with insufficient signal (plants with 4G connectivity).
- Datalogger firmware corrupted or incompatible after update.
Where to start
Check the datalogger power supply: verify the status LED, supply voltage, and protective fuse. Is the device powered on and are the LEDs active?
Full guided diagnosis in the app
The diagnostic tree for this fault has 8 guided steps with measurements, checks and resolutions. You'll find it in ElectraIQ, one of the five IndexOS apps: free, works offline.
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The same fault on other brands
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