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Hi There, I recently got my self a Kodak OG10 and 4 x Deichmann (Yilink) YL-R48100 batteries. I have connected the entire system but I can not figure out the RS485/BMS cable. I have looked in the manuals but it does not make sense as the batteries has 2 x sets of RS485 pins but the Inverter only has 1 x set of RS485 pins, see images below/attached.

Can someone please guide me in a direction here? 

 

IMG_4627.thumb.jpeg.d49ad24477ec84000375c274290a778f.jpeg 

IMG_4626.thumb.jpeg.26023ed07a03a4b43fa1642caa5f521c.jpeg

Wow, I thought these things were standard, but apparently not so (see bottom of your 1st diagram). Your 1st diagram indicates that that device only uses CAN-BUS only, so I'm guessing that that's what you're stuck with. Any PC/networking person who can make up ethernet cables will be able to make you a cable linking CANL and CANH between each end. Make sure  you mark which end is which, it won't work if you get it wrong. As an old electronics engineer, though, I'm fairly sure that getting the interfaces wrong isn't going to blow anything up - they're just low voltage signalling circuits. It took me a few attempts to work out what was happening on my system (it was incredibly simple as it turned out) and in that time a lot of things got connected to a lot of other things in the interface cables. And then hey presto, it worked.

I haven't bothered trying to work out what RS485 can or cannot do differently to CAN-BUS - my Sunsynk-Hubble combo only works with CAN-BUS so I haven't needed to. Maybe someone here has?

16 hours ago, VanWykAC said:

it does not make sense as the batteries has 2 x sets of RS485 pins but the Inverter only has 1 x set of RS485 pins, see images below/attached.

A lot of batteries are set up like this to be compatible with different devices as pinouts are not standard. You can choose which ones to use, either pins 1&2 or pins 7&8.

Are you absolutely sure the RS485 port on the battery can be used for inverter communication? My Shoto battery has a 1xCAN and 2xRS485 ports and I thought I would be able to use the RS485 to the inverter, but as it turns out they are only for PC comms or battery to battery, so I have to use the CAN port for inverter comms.... BUT the Axpert can only do RS485 with the PYL setting, so I just use voltage settings.

3 minutes ago, VanWykAC said:

The Axpert and Kodak is the same unit, it can only do RS485.

Yeah I have the OG5.48. There is a lot of conflicting information about the CAN capability because it is in all the manuals as in your image, but I've not actually seen anyone with it working. I was under the impression that the other lithium settings might use CAN, but I've not been able to find out anything.

2 hours ago, VanWykAC said:

I will switch over from Lyth to Pyl settings to see if it makes a difference. The Axpert and Kodak is the same unit, it can only do RS485. 

It looks like CAN is used for the other protocols, see here: https://forums.aeva.asn.au/viewtopic.php?p=88506#p88506

I know it's not your model, but I'm sure the hardware and software is similar if not the same.

12 hours ago, VanWykAC said:

interesting... I found this - https://www.freedomwon.co.za/wp-content/uploads/Freedom-Lite-and-Axpert-Kodak-King-Interface-Tutorial.pdf

It seems that there is an inherent issue with the comms. I will mail them and ask to see if this works.

Thanks for that, from the doc it suggests that the 'Lib' setting uses RS485 at least. Would be interesting to know if that adapter just does a CAN to RS485 translation to be used with any battery or if it only works with the freedomwon.

Yeah battery inverter comms is a minefield of incompatibilities between pinouts and protocols, it is a mess.

11 hours ago, VanWykAC said:

I see in this video there is a configuration option 14 where you can enable 3rd party control protocol. My Kodak OG10 does not have option 14 :( 

Very informative video, I've never seen a dyness connected directly to an axpert like that. I also don't have option 14, but I'm sure this is option 5 in our models. His option 5 is different when he scrolls past it. My option 5 has the LIC option he is using. From the pinouts he describes it also looks like RS485 and matches yours. You need to be sure that your battery speaks the same protocol as the dyness, but I guess if you plug it in and it works then it works.

23 minutes ago, jumper said:

Very informative video, I've never seen a dyness connected directly to an axpert like that. I also don't have option 14, but I'm sure this is option 5 in our models. His option 5 is different when he scrolls past it. My option 5 has the LIC option he is using. From the pinouts he describes it also looks like RS485 and matches yours. You need to be sure that your battery speaks the same protocol as the dyness, but I guess if you plug it in and it works then it works.

Yep, it is setting 5 in other models, see this video:

 

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