[Bug]: Multiple sensors are missing for GEN6 inverter

[gabriel31337]

Describe the bug

I am constantly running into missing sensors for GEN6 inverter, previously it was inverter temperature, now I have noticed State of Health was not available at all. Some of the sensors were disabled in the entities list, I had to manually enable them in the HA menu to get the values.

I have manually enabled SOH in the python script by adding GEN6 as an option and it shows the correct value. Would it be possible to go through the sensors enabled for the X3 Hybrid G4 and match it for the X3 Hybrid G4 Pro (GEN6) version as well?

Thank you in advance.

Integration Version

2026.05.3

Homeassistant core version

2026.5.3

Inverter brand

Solax Power

Plugin used

plugin_solax.py

Serial prefix

10K0F1

Inverter firmware versions

ARM 18.06-0.06, DSP 18.04

Connection Method

Wifi+LAN dongle

Dongle firmware

1.002.09

Detailed Error Log

No response

Additional context

No response

[wills106]

Have you looked at the Beta release to try and address the old vs newer firmware versions?

#2079

[gabriel31337]

That was the first thing I have checked. It doesn't seem to enable more sensors, just fix the values of actual sensors between different modbus versions.

[rosenrot00]

@gabriel31337 could you tell exactly which ones are missing?

Also please tell your modbus version.

[gabriel31337]

How do I know what else is missing? That's why I requested to do a compare, ideally take all the sensors available and try to make them work with GEN6.

I accidentally come across some information in FB groups where people state they have this and that information visible with this integration. I look inside my HA integration, the info is not there. I check the source code, the GEN6 condition is missing. I add it there, it works. So would be nice for the author(s) to check all the available sensors if these can be used with GEN6 as well.

Modbus protocol version 6.

[TCWORLD]

For modbus protocol <100 we have no reliable documentation, so the register support is largely guesswork as to whether they exist - there is nothing we can check against. Without having a GEN6 Inverter ourselves, we also can't test things out.

GEN6 register have been added incrementally as based on user feedback as to what exists and what doesn't. In particular for the older protocol version there are definite differences between X3 Hybrid GEN4s and GEN6s so just blindly enabling everything is not sensible and could even cause issues if e.g. we write to an address that does something different from what we expected.

If you have tried additional registers and found them to work, by all means either open a PR, or let us know what you have tested.

[gabriel31337]

You can definitely enable the "Battery State of Health" for GEN6 modbus version <100. Tested on mine, shows correct value.

[TCWORLD]

Battery SoH will be enabled by #2099 along with some other metering ones.

[wills106]

Just released 2026.05.6 with the change from #2099

[github-actions]

This issue is stale because it has been open for 30 days with no activity.

[github-actions]

This issue was closed because it has been inactive for 14 days since being marked as stale.