Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Decode status flags #21

Merged
merged 4 commits into from
May 10, 2024
Merged

Decode status flags #21

merged 4 commits into from
May 10, 2024

Conversation

ThHanika
Copy link
Contributor

Something is my smells

# Bit 8: Status: Charging operation
- platform: modbus_controller
modbus_controller_id: bms0
name: "${name} charging operation"
Copy link
Owner

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Could you describe the meaning of this binary sensor in a few words? I would like to try to improve the naming of these 4 status sensors to be more explicit.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I'm doing some experiments with the PACE BMS to elucidate the behavior, it's new to me.

Copy link
Owner

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Alright! Let me know as soon you know the differences between the flags.

Copy link
Contributor Author

@ThHanika ThHanika Dec 2, 2023

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

OK, now it's clear:
The Mosfet CHG and DCHG flags turn the MOSFETs on or off depending on the state of the battery protection and allow the battery to be charged or discharged.

The other flags are operating flags and signal the actual operating status of charging or discharging. A corresponding current must also flow for this. The battery charging process flag also enables balancing.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

OK some additional experience with PACE BMS:
If over voltage protection is reached, the SOC is set to 100% and the remaining capacity is set to design capacity.
After arrive of overvoltage protection release voltage, the specified protection flag is cleared, but not Bit16!
As long as the protection-flag bitset is not equal 0, the balancing works also (Bit16 is on).
Bit16 is cleared, if the Mosfet-switch get state enabled.

@syssi syssi changed the title esp32-example.yaml Decode status flags Nov 29, 2023
@syssi syssi merged commit 0cb2c42 into syssi:main May 10, 2024
3 checks passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

2 participants