Inverter not reading SOC

[marlinb619]

Hi Guys,

I'm using 6 batteries EG4 batteries and 2 of the SP6548 inverters split phase. (attached manuals to this email)
I'm following the manual and using the ethernet cable, but I can't get to make them communicate with each other. I would like for the inverters to read Sate of Charge on the batteries. I would appreciate any tips or ideas?

 

[Adam De Lay]

I’m not sure if the SGP inverters have the eg4 protocol needed for battery communication. You might have to look into the eg4 communication hub. I thought that was supposed to allow you to connect to other inverters that don’t have the eg4 protocol.

Also, you need a special cable for battery comms, you can’t use any old network cable. It requires a special pin out.

 

[marlinb619]

I’m not sure if the SGP inverters have the eg4 protocol needed for battery communication. You might have to look into the eg4 communication hub. I thought that was supposed to allow you to connect to other inverters that don’t have the eg4 protocol.

Also, you need a special cable for battery comms, you can’t use any old network cable. It requires a special pin out.

Signature solar only has Communication Hub for the LifePower4 batteries, not for the EG4 batteries.
My inverters doesn't support my EG4 battery protocol.

So I guess I'm stuck with what I have
Thank you for the help. I guess it was my fault for not checking before building my first solar project.

 

[Detritalgeo]

Signature solar only has Communication Hub for the LifePower4 batteries, not for the EG4 batteries.
My inverters doesn't support my EG4 battery protocol.

So I guess I'm stuck with what I have
Thank you for the help. I guess it was my fault for not checking before building my first solar project.

I am not sure if trhe EG4 batteries are only capable of EG4 protocol... would seem limiting if so..

One thing to try;
Make sure you have the cable correctly wired for RS485 communication and try the PYL format battery on the inverter settings.

Below is a map from Ruixu for RS485 communication between battery and inverter.

cable map:


here is a reference video

 

[OffGridForGood]

I took the advice of those on the forum and got a Victron 500A shunt, and V.E. Direct cable to Solar Assistant.
I can control the inverters from SA and the shunt is very accurate at monitoring the ESS SOC. I am super happy with it.

 

[cdsolar]

The EG4 LLv2 batteries support eG4, victron, growatt, megarovo, and deye protocols. Not sure what the Lifepower4 batteries support