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Sungrow SDongle: adjust frequency #3378

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Sungrow SDongle: adjust frequency #3378

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60c51cc
adjust frequency
ndrsnhs May 20, 2026
d497870
remove whitespace
ndrsnhs May 20, 2026
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7 changes: 5 additions & 2 deletions packages/modules/devices/sungrow/sungrow_sh/counter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -47,8 +47,11 @@ def update(self):
self.fault_state.no_error(self.fault_text)

frequency = self.__tcp_client.read_input_registers(5035, ModbusDataType.UINT_16, unit=unit) / 10
if self.device_config.configuration.version == Version.SH_winet_dongle:
# On WiNet-S, the frequency accuracy is higher by one place
if self.device_config.configuration.version == Version.SH_winet_dongle and frequency >= 400:
# On WiNet-S, the frequency accuracy is sometimes higher by one place
# For some SDongle Firmware Versions it is not. Frequency should roughly
# range between 40 and 60. Therefore, if the value is above 400, we assume
# it is actually 10 times higher than it should be and adjust it accordingly.
frequency /= 10
Comment on lines 49 to 55

power_factor = self.__tcp_client.read_input_registers(5034, ModbusDataType.INT_16, unit=unit) / 1000
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