Solaredge communication dropping every few minutes

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 Likes

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.

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

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

Strange thing is that since yesterday everything is working 100%, without having done anything. Or maybe one of the Victron guys did something behind the scenes but I would expect a comment here then.

After 2 days working perfectly, again unstable…

I have been using the modbus TCP in home assistant for years now without issue.
I now have a Quattro setup and want to connect the SolarEdge via modbus TCP.
Sunspec was set to id 126 and “Sunspec (non-se logger)” together with the modbus port to 502 instead of 1502 as per these instructions: Integrating with SolarEdge [Victron Energy]

The Victron connects and can read out the data but after a minute or so it says “not connected” and then after a while it starts reading again.
The integrations has been disabled in Home Assistant (which was connecting to port 1502 anyway) and I don’t have anything else configured to connect to the SolarEdge.

Does anyone a solution to this?

Thanks!

I have very same issue, when activating your pv widged it becomes visible

Cheers

yes, chart looks the same at my customer

You might want to try pull data from it via another source so you can verify if the pv inverter is having an issue. Have you tried to manually add the device IP instead of relying on it being detected?

Mine is added manually and as mentioned no issue reading it via home assistant.
I also found a post on the community back in 2023, so this must going on a while.
I believe it’s a firmware bug on the Victron end.
Any way we can get them involved?

Also tried with giving it a fixed IP and adding it manually. Makes no difference.

Solaredge stays pingable normally during the issue.
Solaredge app has the full data.

Have you tried the beta OS? There was a fix in there for solaredge but not sure it is entirely relevant.

1 Like

looks like a different issue (no reporting at all), but I installed the beta anyway. Lets see what happens in a few days

I have raised this as well.

2 Likes

Hello,
I also had the issue of data dropping out and one of two SE PV inverters not reporting while beeing connected. After the V3.63 update today it seems (knock on wood) to be fixed.
Best regards
Dennis

I Have got the same problem

Solaredge SE7K Firmware 0004.0020.0036
Venus OS V3.63

‘Dynamic power limiting’ can (sometimes) be enabled on the Cerbo, but the connection between the Cerbo and the Solaredge is completely unstable.

Sometimes the connection is disconnected for several hours and then spontaneously reconnects, but making it unreliable to use.

When the connection is lost, the ‘dynamic power limiting’ option is no longer visible in the Cerbo.

1 Like

I have raised this with the relevant team, hopefully someone responds.

Any volunteers for a remote support session?
Let me know here and I will message you directly.

You need to be sure you have only one device polling the solaredge inverter, it does not support 2.
You also need to have checked your networking to rule out cable faults etc.
I will need remote support enabled, and the ID of your VRM site (the digits in the VRM http URL between installation and dashboard).

Hi Nick,

sure, it’s already enabled for the ID at the top

Grtz,
Bjorn