Solaredge communication dropping every few minutes

Q&A and troubleshooting
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1

Hi,

Recently did a reconfiguration of a SolarEdge SE2200H for a customer to enable modbus tcp and the sunspec protocol. (solaredge was updated to the latest firmware also) The cerbo gx did find the inverter but the communication seems very unstable.

Every few minutes, sometimes seconds the communication is dropped and it disappears from VRM and show as disconnected. Returning some time later.

Already switched to cabled network with both the solaredge and cerbo gx on the same switch but no improvement.
Also read that there was an issue in v3.60 that was resolved in v3.63, so updated but no resolution.

Not sure if it is still an issue in venusOS or with solaredge.

Someone has an idea?
Or maybe someone from Victron can have a quick look (portal ID 785015).

Thanx!

2

Do you have another system that accesses the solaredge inverter (like home assistant)? These inverters can only handle one connection at a time and it sounds like the victron fights with another system for access.

3

No, the Cerbo is the only device accessing the solaredge inverter

4

Then I would look for either an ip address or mac address conflict somewhere. A network trace may reveal the cause.