Rectifier Huawei R4850G2 48V 42~58V 3000w

Depends on your plug. probably you have a different version.
I had four versions plugs until today and all worked with the black wire from start. The plug next to it is CAN.
The fourth not on my picture has 3 more wire pairs on the right side.

CANID HEX10 80 80 FEbroadcast to all rectifiers
Data01 00 00 00 00 00 xx yyonline voltage
Data01 01 00 00 00 00 xx yyoffline voltage
Data01 02 00 00 00 00 xx yyovervoltage Protection
Data01 03 00 00 00 00 xx yyonline current
Data01 04 00 00 00 00 xx yyoffline current
125KB/s

Permanent set (offline voltage) 56V permanent Data 01 01 00 00 00 00 E0 00 probably the PSU overshoots by 0,3V so try DE EC or anything in between. Changes will show up after 30 seconds.

If you want to see the changes immidiatly (online voltage) 01 00 00 00 00 00 E0 00 , but they will get lost after 30 seconds or after a new start..
 
I haven't been able to figure out how to change the current to desired amount. Looking at craigpeacocks github issues someone brought up that the number is in percentage of max current. Is the max current the same as what the unit is rated for max on the data sheet or is it depending on the input voltage? I am on 120vac so for me the max I set should be 2.3% If I want 32 amps or does it need to be for the 120vac 1600w spec which would mean the max current is already 33amps and I would just set the max current to 100% in that case. Which would be 768 converted to hex 0300.
"
For R4875G1
75A / 100 * value * 10.24"

This german guy seems to have it all figured out but doesn't share code.
github.com

GitHub - KlausLi/Esp-HuaweiR4850-Controller: Esp-HuaweiR4850-Controller Das Huawei R4850G2 Recitfier Modul ist ein 3000Watt Lade Netzteil. Es kann über Datenkommunikation gesteuert werden. Die Software "Esp-HuaweiR4850-Controller" kann dieses Huawei

Esp-HuaweiR4850-Controller Das Huawei R4850G2 Recitfier Modul ist ein 3000Watt Lade Netzteil. Es kann über Datenkommunikation gesteuert werden. Die Software "Esp-HuaweiR4850-Controller" k...
github.com github.com
 
The value is the same as for the R4850 and then the R4875 produces the same current. When you add the connection to get 4kw from the r4875, then it makes 33% more current with the same settings. But I do not know if there is a different value for 120V input, as I am on 230V mains.
I have 20 as multiplication value, and then it has to be converted to hex.
To get 30A out of the R4850
30x20=600 = 258 in hex
And with the right connections on the R4875 you will then get 40A, without the 4kW bridge you will get 30A with the same data.
 
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