Peter Obermeier

Hi IvanZah, I have followed a more convenient way and used the M5Stack Core 1 and the Commu-Module. The CAN-Port is connected to the Deye PCS connector only. It is running for almost a year now. I could deliver you the Arduino Code. And help you with the code and setup. best regards Peter

Hi Ohan, thank you very much for the new CANBUS protocol document ! It is no longer a copy of the Pylontech document. I am very surprised that Deye has changed the meaning of the 0x359 Protection/Table 1 to 7, here I have to update my decoding logic a lot. The most interesting thing is Frame Address 0x305. Currently I am only reading and not writing to the CANBUS. Do I understand it correctly when I think that it is possible to write to this address ? Have tried my reading to filter for 0x305, but without success. Perhaps that is the method to tell the battery it should not go into sleepmode after a day or two. best regards Peter

Hi ZS1SCI & Hi all. Thank you ZS1SCI for all these valuable information you have shared. Meanwhile you have sold your Deye batteries, but I want to share the Deye CANBUS protocol which is very difficult to find and I want to ask a question to you and to all members. In the Deye Canbus protocol I have added the information ZS1SCI has given, because in the original document some information was/is missing. I am using the Deye SE-G5.1pro for almost a year and control the charge and discharge via an ESP32 M5Stack. All is working fine, but there are still some questions: 1) When there is no sunshine for several days then I am switching off the discharge unit completely. After one or two days in that pause condition the SE-G5.1 is switching off automaticallly. To bring it up to life I have to switch off and switch on again. Is this normal behaviour? Today I have started to do every 12 hour a low energy force charge via grid for 15 minutes to keep the battery alive, but have no results yet. best regards Peter Deye Canbus Protocol mit Peters AnnotationsV2.pdf