257 lines
9.3 KiB
Go
257 lines
9.3 KiB
Go
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package inverter
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import (
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"bytes"
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"context"
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"encoding/binary"
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"fmt"
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"io"
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"math"
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"strings"
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"git.netflux.io/rob/goodwe-go/command"
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)
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type ET struct {
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SerialNumber string
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ModelName string
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}
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// Unexported struct used for parsing binary data only.
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type etDeviceInfo struct {
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ModbusVersion uint16
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RatedPower uint16
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ACOutputType uint16
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SerialNumber [16]byte
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ModelName [10]byte
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DSP1SWVersion uint16
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DSP2SWVersion uint16
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DSPSVNVersion uint16
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ArmSWVersion uint16
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ArmSVNVersion uint16
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SoftwareVersion [12]byte
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ArmVersion [12]byte
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}
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func (info *etDeviceInfo) toDeviceInfo() *DeviceInfo {
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serialNumber := string(info.SerialNumber[:])
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return &DeviceInfo{
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ModbusVersion: int(info.ModbusVersion),
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RatedPower: int(info.RatedPower),
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ACOutputType: int(info.ACOutputType),
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SerialNumber: serialNumber,
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ModelName: strings.TrimSpace(string(info.ModelName[:])),
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DSP1SWVersion: int(info.DSP1SWVersion),
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DSP2SWVersion: int(info.DSP2SWVersion),
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DSPSVNVersion: int(info.DSPSVNVersion),
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ArmSWVersion: int(info.ArmSWVersion),
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ArmSVNVersion: int(info.ArmSVNVersion),
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SoftwareVersion: string(info.SoftwareVersion[:]),
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ArmVersion: string(info.ArmVersion[:]),
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SinglePhase: strings.Contains(serialNumber, "EHU"),
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}
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}
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// Unexported struct used for parsing binary data only.
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type etRuntimeData struct {
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_ [6]byte
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PV1Voltage int16
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PV1Current int16
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PV1Power int32
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PV2Voltage int16
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PV2Current int16
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PV2Power int32
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_ [18]byte
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PV2Mode byte
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PV1Mode byte
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OnGridL1Voltage int16
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OnGridL1Current int16
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OnGridL1Frequency int16
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OnGridL1Power int32
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OnGridL2Voltage int16
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OnGridL2Current int16
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OnGridL2Frequency int16
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OnGridL2Power int32
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OnGridL3Voltage int16
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OnGridL3Current int16
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OnGridL3Frequency int16
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OnGridL3Power int32
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GridMode int16
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TotalInverterPower int32
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ActivePower int32
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ReactivePower int32
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ApparentPower int32
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BackupL1Voltage int16
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BackupL1Current int16
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BackupL1Frequency int16
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LoadModeL1 int16
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BackupL1Power int32
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BackupL2Voltage int16
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BackupL2Current int16
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BackupL2Frequency int16
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LoadModeL2 int16
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BackupL2Power int32
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BackupL3Voltage int16
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BackupL3Current int16
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BackupL3Frequency int16
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LoadModeL3 int16
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BackupL3Power int32
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LoadL1 int32
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LoadL2 int32
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LoadL3 int32
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BackupLoad int32
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Load int32
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UPSLoad int16
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TemperatureAir int16
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TemperatureModule int16
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Temperature int16
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FunctionBit int16
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BusVoltage int16
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NBusVoltage int16
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BatteryVoltage int16
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BatteryCurrent int16
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_ [2]byte
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BatteryMode int32
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WarningCode int16
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SafetyCountryCode int16
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WorkMode int32
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OperationCode int16
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ErrorCodes int16
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PVGenerationTotal int32
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PVGenerationToday int32
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EnergyExportTotal int32
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EnergyExportTotalHours int32
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EnergyExportToday int16
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EnergyImportTotal int32
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EnergyImportToday int16
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EnergyLoadTotal int32
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EnergyLoadDay int16
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BatteryChargeTotal int32
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BatteryChargeToday int16
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BatteryDischargeTotal int32
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BatteryDischargeToday int16
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_ [16]byte
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DiagStatusCode int32
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}
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func (data *etRuntimeData) toRuntimeData(singlePhase bool) *ETRuntimeData {
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filterSinglePhase := func(i int) int {
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if singlePhase {
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return 0
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}
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return i
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}
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return &ETRuntimeData{
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PV1Voltage: int(data.PV1Voltage),
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PV1Current: int(data.PV1Current),
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PV1Power: int(data.PV1Power),
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PV2Voltage: int(data.PV2Voltage),
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PV2Current: int(data.PV2Current),
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PV2Power: int(data.PV2Power),
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PVPower: int(data.PV1Power) + int(data.PV2Power),
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PV2Mode: data.PV2Mode,
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PV1Mode: data.PV1Mode,
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OnGridL1Voltage: int(data.OnGridL1Voltage),
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OnGridL1Current: int(data.OnGridL1Current),
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OnGridL1Frequency: int(data.OnGridL1Frequency),
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OnGridL1Power: int(data.OnGridL1Power),
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OnGridL2Voltage: filterSinglePhase(int(data.OnGridL2Voltage)),
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OnGridL2Current: filterSinglePhase(int(data.OnGridL2Current)),
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OnGridL2Frequency: filterSinglePhase(int(data.OnGridL2Frequency)),
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OnGridL2Power: filterSinglePhase(int(data.OnGridL2Power)),
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OnGridL3Voltage: filterSinglePhase(int(data.OnGridL3Voltage)),
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OnGridL3Current: filterSinglePhase(int(data.OnGridL3Current)),
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OnGridL3Frequency: filterSinglePhase(int(data.OnGridL3Frequency)),
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OnGridL3Power: filterSinglePhase(int(data.OnGridL3Power)),
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GridMode: int(data.GridMode),
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TotalInverterPower: int(data.TotalInverterPower),
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ActivePower: int(data.ActivePower),
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ReactivePower: int(data.ReactivePower),
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ApparentPower: int(data.ApparentPower),
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BackupL1Voltage: int(data.BackupL1Voltage),
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BackupL1Current: int(data.BackupL1Current),
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BackupL1Frequency: int(data.BackupL1Frequency),
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LoadModeL1: int(data.LoadModeL1),
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BackupL1Power: int(data.BackupL1Power),
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BackupL2Voltage: filterSinglePhase(int(data.BackupL2Voltage)),
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BackupL2Current: filterSinglePhase(int(data.BackupL2Current)),
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BackupL2Frequency: filterSinglePhase(int(data.BackupL2Frequency)),
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LoadModeL2: filterSinglePhase(int(data.LoadModeL2)),
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BackupL2Power: filterSinglePhase(int(data.BackupL2Power)),
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BackupL3Voltage: filterSinglePhase(int(data.BackupL3Voltage)),
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BackupL3Current: filterSinglePhase(int(data.BackupL3Current)),
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BackupL3Frequency: filterSinglePhase(int(data.BackupL3Frequency)),
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LoadModeL3: filterSinglePhase(int(data.LoadModeL3)),
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BackupL3Power: filterSinglePhase(int(data.BackupL3Power)),
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LoadL1: int(data.LoadL1),
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LoadL2: filterSinglePhase(int(data.LoadL2)),
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LoadL3: filterSinglePhase(int(data.LoadL3)),
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BackupLoad: int(data.BackupLoad),
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Load: int(data.Load),
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UPSLoad: int(data.UPSLoad),
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TemperatureAir: int(data.TemperatureAir),
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TemperatureModule: int(data.TemperatureModule),
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Temperature: int(data.Temperature),
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FunctionBit: int(data.FunctionBit),
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BusVoltage: int(data.BusVoltage),
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NBusVoltage: int(data.NBusVoltage),
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BatteryVoltage: int(data.BatteryVoltage),
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BatteryCurrent: int(data.BatteryCurrent),
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BatteryMode: int(data.BatteryMode),
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WarningCode: int(data.WarningCode),
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SafetyCountryCode: int(data.SafetyCountryCode),
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WorkMode: int(data.WorkMode),
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OperationCode: int(data.OperationCode),
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ErrorCodes: int(data.ErrorCodes),
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PVGenerationTotal: int(data.PVGenerationTotal),
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PVGenerationToday: int(data.PVGenerationToday),
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EnergyExportTotal: int(data.EnergyExportTotal),
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EnergyExportTotalHours: int(data.EnergyExportTotalHours),
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EnergyExportToday: int(data.EnergyExportToday),
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EnergyImportTotal: int(data.EnergyImportTotal),
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EnergyImportToday: int(data.EnergyImportToday),
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EnergyLoadTotal: int(data.EnergyLoadTotal),
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EnergyLoadDay: int(data.EnergyLoadDay),
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BatteryChargeTotal: int(data.BatteryChargeTotal),
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BatteryChargeToday: int(data.BatteryChargeToday),
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BatteryDischargeTotal: int(data.BatteryDischargeTotal),
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BatteryDischargeToday: int(data.BatteryDischargeToday),
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DiagStatusCode: int(data.DiagStatusCode),
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HouseConsumption: int32(float64(data.PV1Power) + float64(data.PV2Power) + math.Round(float64(data.BatteryVoltage)*float64(data.BatteryCurrent)) - float64(data.ActivePower)),
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}
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}
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func (inv ET) DeviceInfo(ctx context.Context, conn io.ReadWriter) (*DeviceInfo, error) {
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resp, err := command.Send(command.NewModbus(command.ModbusCommandTypeRead, 0x88b8, 0x0021), conn)
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if err != nil {
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return nil, fmt.Errorf("error sending command: %s", err)
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}
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var deviceInfo etDeviceInfo
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if err := binary.Read(bytes.NewReader(resp), binary.BigEndian, &deviceInfo); err != nil {
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return nil, fmt.Errorf("error parsing response: %s", err)
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}
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return deviceInfo.toDeviceInfo(), nil
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}
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func (inv ET) RuntimeData(ctx context.Context, conn io.ReadWriter) (*ETRuntimeData, error) {
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deviceInfo, err := inv.DeviceInfo(ctx, conn)
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if err != nil {
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return nil, fmt.Errorf("error fetching device info: %s", err)
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}
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resp, err := command.Send(command.NewModbus(command.ModbusCommandTypeRead, 0x891c, 0x007d), conn)
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if err != nil {
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return nil, fmt.Errorf("error sending command: %s", err)
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}
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var runtimeData etRuntimeData
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if err := binary.Read(bytes.NewReader(resp), binary.BigEndian, &runtimeData); err != nil {
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return nil, fmt.Errorf("error parsing response: %s", err)
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}
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return runtimeData.toRuntimeData(deviceInfo.SinglePhase), nil
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}
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