First things first
Important: also users are notified via the FlexiO app of this error.
LIFEPOWR strongly encourages user interaction as first basic intervention step:
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Faster as most of the time on premises/local
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It might solve the error without any further intervention required from installer and/or LIFEPOWR
Correlated error page to user can be found here.
Explanation
FlexiO cannot connect to the inverter, or the connection quality to the inverter is below a certain threshold.
A Modbus error implies that FlexiO isn’t running.
The installation might or should be self-steering capable and thus fall-back to the local steering of your inverter.
Required action
FlexiO/FlexiObox connection to the inverter fails or QoS is under a certain acceptable threshold.
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First try to reboot Inverter/BMS.
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Secondly, check if the inverter is running on the minimal required firmware.
If not, upgrade the firmware to the required version.
If the problem persists:
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Modbus RTU: might be bad or bad connected Modbus RTU cable, replace the cable.
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Modbus TCP: either badly connected network connection
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In case the inverter is connected via Wi-Fi: did the password or SSID recently change?
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Any router or power-line in between? Reboot these network devices and check if all cables are well connected and internet connection is up
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Not solved?
Follow these instructions if this error persists.