On June 12 around 9:45 there was a complete blackout in our house. After this blackout the FLM's webserver came up again and also proper heartbeats were sent. Irritatingly there were no sensor readings and so no sensor data collected until we came back on June 17 and I shortly pulled the FLM's power to hard restart it. After the restart everything worked fine again. Sadly I don't know for how long there was the power drop on June 12 causing the improper start of the sensor board. What could have caused such a condition? No correct brown-out detection, too short power drop for a brown out, but long enough to decouple it from the server board? Any other idea? Who has experienced a similar phenomenon?
Best regards
Markus
Taking a look at your month chart, it's clear that the FLM's sensor board was registering readings just fine. E.g. your PV impulse sensor reports average readings that are very plausible. If you state that proper heartbeats were sent to the server, then I suspect the time registration was not proper inititialized via NTP.
Was the heartbeat LED still blinking when you came back?
Honestly, I haven't checked the heartbeat LED, but just pulled out the power plug, waited 10 sec and plugged it in again... The too flat PV line between June 12 and 16 is not correct; the correct reading can be obtained from my Solarlog installation; during our vacation I had the chance to look at the FLM chart, so I encountered the blackout in the first place - the corresponding device in the settings showed the heartbeats.
BR, Markus