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Cliff

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Everything posted by Cliff

  1. Right, that makes sense now. I am sure you could snoop the CAN bus and figure out what the inverter is asking from the battery and then emulate it, but that would require a fair amount of work to implement.
  2. I use the CAN port for battery comms so the 485 port is free.
  3. Hi sorry for the delay. I am running the the inject every 30s but in my testing is can go much faster, actually just put a message limiter inline as the messages all fire out of the timestamp in parallel, at 4 msg/s I have never had any corruption issues. Inverter settings are below. If you still having issues it could be the rs885 converter remember 485 is async so the adaptor needs to transmit and then shift to listening mode.
  4. Hi not sure if you mean BMS's as in a third party ones, but they support most batteries, with a BMS, over CAN. Here is a https://www.fullcirclesolar.co.za/wp-content/uploads/2020/08/35-FCS-SunSynk-Inverter-Lithium-Battery-Compatibility.pdf
  5. Hi All Just wanted to confirm, that the Deye inverter works and supports the same RS485 modbus protocol as described above. I have a pi zero running node-red chatting perfectly to the inverter, polling values and broadcasting it out over MQTT.
  6. I was in the market for a new inverter and found it itnerfrica shop, https://www.itnerfricashop.co.za . After an enquiry Donald phoned me back and his service was probably one of the best experiences I have had. It was a Friday afternoon when I placed the order and he personal committed to deliver the order and promptly delivered to me on Friday evening, unbelievable. I can highly recommend these guys their knowledge and service and prices are amazing.
  7. @innesleroux could you let us know if you used a Deye or a Sunsynk, I am trying to figure out if the Deye invertes use the same protocol as the the Sunsynk document.
  8. Yea I have worked on a Deye and you can see they are almost identical but I just wanted to check if anyone had actually tried the RS485 modbus protocol on the Deye. My gut tells me they should be the same as they both use the same WiFi logger and therefore should support the same protocol.
  9. Hi all This thread has been really great thanks for sharing so much. I am about to get a new inverter and deciding on a Deye or Sunsynk. So just a question has anyone managed to interface to a Deye inverter using the modbus protocol discussed here? Before I buy I want to make 100% sure the above will work as I really want to integrate the inverter into my home assistant and node-red local controllers. Cliff
  10. It might be worth a go but I think the parameters like max charging current need to compensate for the fact that there are two inverters and as they both connected to the batteries so if each inverter see the same config then you could end up with a situation where they both deliver max current effectively doubling the the rating.
  11. Hi all I am assisting a friend with and installation of two 8kw Deye inverters. The inverters are installed on Phase A and Phase B of a three phase system. We have 27 panels connected in four strings, two to each inverter, which work perfectly. We also have three pylontech us 3000 connected in parallel to both inverters. My questions relates to how the inverters speak to each other and share the BMS data. Since we only have two inverters across two different phases we can't quite seem to figure out how to configure them so that the one with the CAN BMS cable connected shares the battery data with the second one ? We have tried setting the inverts up as two masters on phase A and Phase B, and they reported no communication faults when doing this, but the second inverter did not have any SOC data and after a while showed a graphic with three exclamation marks which we can't find any reference to in the manual. We then tried them as stand alone inverters but again no battery SOC was shared between the one with the CAN connection and the second inverter Below is a shot of the setup we attempted, but without the third phase, and the SOC error we got from the non CAN connected inverter. One thing we are thinking of trying is setting up the inverter as Master and Slave configuration but I am not sure how they will react if they each on a different phase. Any insight on this would be appreciated as I have sent three emails to the "Fast responding customer service" at Deye and have not received any feedback in over a week Cliff
  12. Hi All Really good thread thanks for sharing all the insight, @Cybertzawould you mind sharing the above node red flow as a JSON export to help us get started ? Cliff
  13. @Calvinthanks so much that is really valuable for me, appreciate you sharing!
  14. @Calvin Thanks for the insight that sounds much closer to what is claimed on paper. Would you mind sharing with us how you wire your panels, i.e. how many in series or parallel of the 12x365, and do you use anything like optimizer between panels ?
  15. Hi All First, Bain thanks for all the testing effort appreciate your effort . I have been following this thread with interest as I was really keen on getting a King. This feedback is very concerning as it really means that using the King in a Solar situation is very disadvantages. "I mean, only 1.7kw from 2970w panels... no man.. " is spot on this is a huge issue. Coulomb and Bain do you feel this is specif to your inverter or true for all Kings, certainly seems like it is not a specific issue ? Does anybody have any recommendations on Inverters that give you the flexibility of the King but with better MPPT, or is there a design that anyone has that could improve this ? Cliff
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