FoxESS Community - Owners & Installers Forum

Nice .. thanks for the pic!

I can't find the inverter meter specs anywhere, but is the inverter expecting the defaults:

modbus address 1 (that one I know it is)
baud rate 9600
parity none

The specs of the Eastsron SDM230 Modbus don't seem too impressive in regard to accuracy:

Accuracy
• Voltage 0·5% of range maximum ...

Great Dave, I'll look for one of those. Thanks again!

Hello!

I'm going to have a little re-working done to my system and I'm interested in having my installer (or some electrician) change from using CT1 to Meter 1 for the inverter's main sensing of the grid current flow.

Can I just source any 63A (or higher) Modbus meter, set it to Modbus ID1 ...

Yes, thanks ... if I try to write values 0,8000 starting at 46616 it works.

Is the crowd-sourced current state of registers published somewhere?

You're amazing Dave! Thanks.

I'm on KH10.5 Master 1.4 / Slave 1.01 / ARM 1.37 (that's Manager I guess).

Reading input registers, also same for holding registers:

values:
"46616": 0
"46617": 9000

Reading input register 41012

values:
"41012": 9000

This matches my current Settings > On ...

Exactly Dave, on all counts!

Thanks for going through it all again, I know it is a lot. I was hoping that using CT2 was some sort of magic potion that would solve some issues. I think you are confirming for my set up there is no benefit to doing that.

To be more clear, my concern about backflow is ...

Question - in this arrangement, using CT2 (or two meters), does the inverter 'know' it is off-grid (grid is down) when it sees no current on the grid CT/meter but does see current on the 'additional generator' CT/meter? Does this set up prevent all backflow from the inverter to the generator? My ...

:)
Thanks Dave!


It’s a complex answer and takes some planning, firstly it is illegal to connect any other generator to the incoming supply connections and so in the event of grid failure you must fully isolate the incoming supply so that anything you do within the home is isolated from the ...

I think the best way to do what you want is to connect the generator to your consumer unit/fuse box on the grid side of the main CT meter - then add a second CT clamp from the CT2 input, and clamp it to the generator live feed.

The inverter will see everything the generator produces as external ...

I don’t know if they are solenoids etc but it’s quite a loud “click click click” as it is negotiating with the input. It’s probably not good for the inverter in the long run.

Hi Max ... I read your post with interest, thanks for all that information. I just wanted to mention that, as someone who ...

I think it's working!

Argh! I think I have found my issue perhaps. I was expecing to see a change in the Modbus entity sensor.foxess_grid_ct and there was no change. But actually, we are trying to 'calibrate' that sensor so that it is more accurate -- or we are trying to fool it into pushing back to the grid (that's what ...

Strange .. not working for me. I had my installer change it to -50 and I still see it behaving just like it always did (typically pulling about 10 watt from the grid).

Master : 1.41
Slave : 1.01
Manager : 1.37

KH10.5

Thanks Dave! Yes, that's how I run it too. Not a big deal. Using "load_power" instead may give the same numbers in my use case anyway.

Hello ... I did a few versions of software updates today and sensor.foxess_eps_rpower is not working correctly. It works when I'm in self-use mode but when pulling from the grid it drops to zero. Meanwhile sensor.foxess_eps_rcurrent is still working fine (showing 14.7A for example when eps power ...

Today I got the latest updates from FoxESS on my KH10.5 and asked my installer to give me -20 watts. He knew what I asking for, and did it, but it has not made any difference (I have modbus, so can see grid use updated very frequently and I would notice 20 watts at the grid CT for sure). I also ...

Hello:

I believe the original specs were the one master battery plus six additional units. I heard this limit was raised by one so seven units can be in the stack plus the master.

I enquired with my installer and they said "Yes this is true but for a different module battery. unfortunately you ...

Yes, it began working again quickly. Each side of the consumer unit (the whole unit is on the EPS output) has an 80A RCD. Probably just a fluke.

Spoke too soon!

Next round did the 'master':

Master : 1.29. Slave : 1.01. Manager : 1.21

That part of the upgrade did throw the device into EPS mode as if the AC power failed which in this case tripped one of the RCDs in the consumer unit meaning power was lost to many circuits in the house. The ...

Ok... I was impatient and feeling lucky, so I asked for an upgrade and received it. Only the manager was updated:

Master : 1.27 Slave : 1.01. Manager : 1.21

I'll report back if I find any problems.

Hello:

I'm hoping maybe William will answer but all are welcome. I have a KH10.5 and I'm on firmware from a month or so ago (Master : 1.27 Slave : 1.01 Manager : 1.19). I know firmware was updated since then. I'm not having any problems but do like to keep current unless there are drawbacks ...

This is my inverter ... confirm latest firmware did not give me that function. It did add 'peak shaving' and it did subtract the ability for the foxesscloud to work properly with the inverter. Local control (panel and modbus) are fine. Well, actually I've had some inverter operating system freezes ...

follow-up question:

regarding firmware parts - am I correct that Manager = inverter's software, Master = main battery (BMS) software, Slave = all the other batteries' software?

It should work, I have both working and the same credentials are used. My web login is using the username, not the email address ... could that be the problem?

I can't give an accurate answer of what you can and can't do, additionally, on the web site, but that's how I prefer to interact with the ...