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Growatt TL3-XH: Scale battery voltage depending on battery system #1099

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merged 2 commits into from
Oct 21, 2024
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Merged

Growatt TL3-XH: Scale battery voltage depending on battery system #1099

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f0a1ab8
Scale battery voltage depending on battery system
TonyMathiesen Oct 15, 2024
8dfa897
Merge branch 'main' into Battery-voltage-scaling-by-system
wills106 Oct 21, 2024
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18 changes: 17 additions & 1 deletion custom_components/solax_modbus/plugin_growatt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -253,6 +253,14 @@ def value_function_today_s_solar_energy(initval, descr, datadict):
def value_function_combined_battery_power(initval, descr, datadict):
return datadict.get('battery_charge_power', 0) - datadict.get('battery_discharge_power',0)

def value_function_battery_voltage(initval, descr, datadict):
bms = datadict.get('bms_monitoring_version', 0)
if bms == "ZECA": #Battery system APX HV (ZECA) uses 0.1 scaling factor for battery voltage
initval = initval / 10
else:
initval = initval / 100
return initval

def value_function_total_grid_power(initval, descr, datadict):
return datadict.get('grid_power_l1', 0) + datadict.get('grid_power_l2', 0) + datadict.get('grid_power_l3', 0)

Expand Down Expand Up @@ -4872,6 +4880,14 @@ def value_function_run_mode(initval, descr, datadict):
allowedtypes = GEN4,
entity_category = EntityCategory.DIAGNOSTIC,
),
GrowattModbusSensorEntityDescription(
key = "bms_monitoring_version",
register = 3096, #used for battery voltage scaling
unit = REGISTER_STR,
wordcount=2,
allowedtypes = GEN4 | HYBRID,
internal = True,
),
GrowattModbusSensorEntityDescription(
name = "Today's Battery Output Energy",
key = "today_s_battery_output_energy",
Expand Down Expand Up @@ -5109,7 +5125,7 @@ def value_function_run_mode(initval, descr, datadict):
device_class = SensorDeviceClass.VOLTAGE,
register = 3169,
register_type = REG_INPUT,
scale = 0.1, #doc says 0.01, but datasheet of APX HV system module for MOD / MID TL-XH (BP) inverters have operating voltage range 600-980V.
scale = value_function_battery_voltage, #due to different scaling factor depending on battery system, default scale 0.01
rounding = 2,
allowedtypes = GEN4 | HYBRID,
),
Expand Down
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