XL02-A is just an optimizer, XL02-B is optimizer with monitoring and fire safety.

XL02-B needs concentrator unit for communication and "shutdown" functionality.

Without the concentrator it will not even turn on...

@tribesman 

Danke für die Ausführungen.
Gibt es Erfahrungen mit dem XL02-A?

I have big trouble with SUN-XL02-B

I added a new string with more Optimisers to the existing.

Now I have 2 main problems.

1) I lost the Page with the QR Codes of them ist there any chance to bind them on the optimiser Concentrator. I used hours and hours to
find something in Solarman App or direkt on my inverter Deye SUN-15K-SG05LP3-EU but nothing and.....

2) even I have some of the QR Codes because I check direkt on the Optimiser, there is no way to bind them because I cant use Deye Cloud App because I already connected the Loggers to Solarman APP and Twice is doest Work. How can I connect even them

HELP PLEASE! THANKS

If you lost QR codes, you are properly screwed. There is no way to activate the optimizers without entering the correct codes into the concentrator. There is no "autodetect" or something similar.

You don't necessarily need QR codes, you can input the values alphanumerically.

Check if you still have the box in which the optimizers came in... The codes are usually also present there.

If you don't have that, you will have to go on the roof and scan every optimizer there.

I'm not sure if you are able to program the codes into the system via Solarman app. Never used that.

But it for sure works in Deye Cloud app.

If your concentrator logger is "locked" and you cannot add it to Deye Cloud, write to deye support, they will release your concentrator serial number from the system, and you will be able to add it again.

Hey I really got the QR Codes. But support say Migration, I cant Migrate they say they will contact Data center. No more reply even I send a Mail there twice.
ANY IDEAS HOW I AN PUT THEM IN SOLARMAN APP?