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Is there a firmware archive somewhere? pytesusa.com has a downloads section but no firmware listed. I'm looking for firmware for the V1.0 units (Rev A?)

First page. setprt set protocol type - setprt [VICTRON/GOODWE/GROWATT/STUDER/AFORE/LUXPOWER/KEHUA/MEGAREVO/SOLAX/PYLON/SOLIS/SCHNEIDER/DIP] I'm using the LUXPOWER setting for the XW - the SCHNEIDER mode was reported not to work.

I wonder if they weren't selling SCPs at the same rate as installed systems? I know I didn't see the need to buy one.

What inverter are you using that doesn't honor the maximum charging amps setting?

I got wire ways from Gordon Electricals Supply. They aren't cheap and you'll need a panel punch (ideally) or a step drill.

The remote initiator shuts down everything. The local disconnect just breaks connection to the PV.

I was a bit sticker shocked at the RSD but after installing mine and having a look inside there is a bunch of stuff going on and it would be difficult to duplicate all the functionality and level of integration at the price point. My only problem with the RSD is that I can't seem to assign a...

The "debug" login has a bunch of stuff you may be able to poke around with. I'd be careful to only query info though as some of the configurable settings look like they could break things. In particular look at the "soc" related commands: socr SOC read - socr[Offset] socw SOC write -...

The BMS uses a TI BQ34Z100 ("battery gas gauge"). The datasheet for this part suggests that there is some refinement to the SOC measurement that occurs as the batteries are charged/discharged. If all the cell voltages are close I'd be less worried about the reported SOC.

You've got two inverters connected; my concern is that depending on the model you may be able to exceed that current with a single inverter, let alone two.

Be advised that the SurLok connectors are only rated for 125A.

You're gonna need to diagram what your setup is right now but I think you need to have one inverter take it's positive from battery 1 and negative from battery 4, and the other inverter, the exact opposite.

I kinda did that on the first page.

Or use a line side tap and avoid the 120% rule entirely?

Inverter and a brine tank.

Insight Home terminates one end of your Xanbus; Facility has two pairs of Xanbus ports. Facility has two RS485 ports, two 0-10VDC analog inputs, two 4-20mA inputs and two relay channels (NO/NC). Facility can mount to a DIN rail. Is all that worth an extra $300? Dunno.

Check out https://ctlsys.com/products/. This will apparently let you setup for zero-export/sell. I skipped the SCP and just use Insight (Facility).

Yet another reason to use compression fittings.

I've yet to begin that effort. Understand that anything I write would likely run on something like a Raspberry Pi and simply feed data to InfluxDB for visualization with Grafana.

They certainly feel like the've got $3000 of copper in them.

I analyzed the BMS firmware with reverse-engineering tools (Ghidra) and looked for all the supported RS485 commands, which I documented earlier in this thread. My plan was to pull that info from the console, since the output it produces shows some concession to machine parsing (command response...

The serial console lets you query cell status, but the RS485 interface doesn't have any of that info available.

That's not what I'm seeing here. RS485 "LVP" $ .build/lvp_test -a 0x12 -c 0x63 System Charge/Discharge Management Info 1: 57.500 V Charge voltage limit 2: 47.000 V Discharge voltage limit 3: 12.5 A Charge current limit 4: 300.0 A Discharge Current limit 5: 0xc0...

I've ordered another six batteries and a "DLG 1U Hub" which can talk to seven strings of six batteries each. Two strings is about all I have room for but I'll report results of using it. I considered rolling my own, as I've got all the CAN protocol specs, but decided that I don't need yet...

Vertical cantilevered wall mount rack.

On the other hand, when I went looking for batteries, if it didn't support the Pylon protocol (which my inverter does), then it didn't make the list.

The current I'm seeing on the Schneider matches with what I see on the console of the battery, if I sum the "Curr" column in the "pwr" command. The inverter charge current matches what the BMS is asking for (confirmed by using the RS485 low voltage protocol), which scales based on the number of...

I'm not aware of any mainstream laptops that still ship with serial ports and can't think of any that ever shipped with RJ-45 serial ports. I grabbed an RJ-12 cable from my hoard and an RJ-45 to DB-9 and adjusted the pinout to work with the USB to DB-9 adapter. I'm not sure why DLG didn't just...

If you've got something too close to the left side of the unit the cover will bind up and be unable to rotate off.

This is what the Pylon protocol permits. I presume other protocols are similar. You can see the inverter slowly ramping charging voltage and then step down amperage as the SoC approaches 100%. (The jump in current after 8pm was me manually adjusting the current limit on the inverter. The...

I'm currently sorting out bus bars myself.

No, I got it working with both of them. I think there is still room for Schneider to fix things to coordinate splitting the charging load, but for now setting manual limits on the Insight seem to produce acceptable results. We'll see how this all works once I add the SCCs to the mix.

The "link" ports are also using RS485, so the "urates" setting might be for that. I do see code that conditionally sets the BMS link port to 1200 or 115200 though it appears to be related to the BMS running in slave mode (I think that the link ports come up at 1200 baud and can shift to a...

Empirical testing, initially, later confirmed by reverse engineering. DIP switches only change the CAN protocol type, as far as I know. ... FUN_0001da10(&UART3,0x2580,uVar1,uVar2); UART_Enable_FIFO((int)&UART3); set_UART_Interrupt_FIFO_Level_Select((int)&UART3,2,0x10)...

From my RE of the BMS firmware, it looks like the speeds are fixed.