Tian Power (Revov) BMS Integration

Integrate the Tian Power BMS via RS485 to Victron Venus OS-equipped devices.

SOC
Battery voltage
Charge/discharge current
Temprature
Min/max cell voltages
protection notifications

It uses CRC-16-ANSI function

def calc_crc(data):
    crc = 0xFFFF
    for pos in data:
        crc ^= pos 
        for i in range(8):
            if ((crc & 1) != 0):
                crc >>= 1
                crc ^= 0xA001
            else:
                crc >>= 1
    return crc

Issue Analytics

State:
Created 2 years ago
Comments:16 (10 by maintainers)

Top GitHub Comments

1reaction

cslozcommented, May 2, 2022

I’ve started some work on this myself. The protocol pdf appears to be completely incorrect for the TianPower BMS - at least from what i’m seeing so far.

Added some progress here - https://powerforum.co.za/topic/4044-the-dreaded-revovs-on-sale/page/3/

I need to work out where some of the variables sit tomorrow.
Have identified 4 commands so far.

0reactions

Louisvdwcommented, Sep 21, 2022

Anyone want to test a new beta please https://github.com/Louisvdw/dbus-serialbattery/releases/tag/v0.12b4 We’ve added a new battery driver that seem to be the same BMS as the Revov batteries. In this beta above the revov driver is disabled and the LifePower enabled. Please give it a test with the Revov batteries and check if it works and if more data is available . @bertiebez @csloz

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