Add the new battery250UP device Lib

This commit is contained in:
atef 2024-06-19 17:15:15 +02:00
parent be325dd90c
commit de4515fc15
13 changed files with 541 additions and 0 deletions

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@ -93,6 +93,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SofarInverter", "Lib\Device
EndProject EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SchneiderMeterDriver", "App\SchneiderMeterDriver\SchneiderMeterDriver.csproj", "{2E7E7657-3A53-4B62-8927-FE9A082B81DE}" Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SchneiderMeterDriver", "App\SchneiderMeterDriver\SchneiderMeterDriver.csproj", "{2E7E7657-3A53-4B62-8927-FE9A082B81DE}"
EndProject EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Battery250UP", "Lib\Devices\Battery250UP\Battery250UP.csproj", "{F2967439-A590-4D5E-9208-1B973C83AA1C}"
EndProject
Global Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution GlobalSection(SolutionConfigurationPlatforms) = preSolution
@ -244,6 +246,10 @@ Global
{2E7E7657-3A53-4B62-8927-FE9A082B81DE}.Debug|Any CPU.Build.0 = Debug|Any CPU {2E7E7657-3A53-4B62-8927-FE9A082B81DE}.Debug|Any CPU.Build.0 = Debug|Any CPU
{2E7E7657-3A53-4B62-8927-FE9A082B81DE}.Release|Any CPU.ActiveCfg = Release|Any CPU {2E7E7657-3A53-4B62-8927-FE9A082B81DE}.Release|Any CPU.ActiveCfg = Release|Any CPU
{2E7E7657-3A53-4B62-8927-FE9A082B81DE}.Release|Any CPU.Build.0 = Release|Any CPU {2E7E7657-3A53-4B62-8927-FE9A082B81DE}.Release|Any CPU.Build.0 = Release|Any CPU
{F2967439-A590-4D5E-9208-1B973C83AA1C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{F2967439-A590-4D5E-9208-1B973C83AA1C}.Debug|Any CPU.Build.0 = Debug|Any CPU
{F2967439-A590-4D5E-9208-1B973C83AA1C}.Release|Any CPU.ActiveCfg = Release|Any CPU
{F2967439-A590-4D5E-9208-1B973C83AA1C}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection EndGlobalSection
GlobalSection(NestedProjects) = preSolution GlobalSection(NestedProjects) = preSolution
{CF4834CB-91B7-4172-AC13-ECDA8613CD17} = {145597B4-3E30-45E6-9F72-4DD43194539A} {CF4834CB-91B7-4172-AC13-ECDA8613CD17} = {145597B4-3E30-45E6-9F72-4DD43194539A}
@ -286,5 +292,6 @@ Global
{6B98449D-BF75-415A-8893-E49518F9307D} = {145597B4-3E30-45E6-9F72-4DD43194539A} {6B98449D-BF75-415A-8893-E49518F9307D} = {145597B4-3E30-45E6-9F72-4DD43194539A}
{2C7F3D89-402B-43CB-988E-8D2D853BEF44} = {4931A385-24DC-4E78-BFF4-356F8D6D5183} {2C7F3D89-402B-43CB-988E-8D2D853BEF44} = {4931A385-24DC-4E78-BFF4-356F8D6D5183}
{2E7E7657-3A53-4B62-8927-FE9A082B81DE} = {145597B4-3E30-45E6-9F72-4DD43194539A} {2E7E7657-3A53-4B62-8927-FE9A082B81DE} = {145597B4-3E30-45E6-9F72-4DD43194539A}
{F2967439-A590-4D5E-9208-1B973C83AA1C} = {4931A385-24DC-4E78-BFF4-356F8D6D5183}
EndGlobalSection EndGlobalSection
EndGlobal EndGlobal

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@ -0,0 +1,16 @@
<Project Sdk="Microsoft.NET.Sdk">
<Import Project="../../InnovEnergy.Lib.props" />
<PropertyGroup>
<RootNamespace>InnovEnergy.Lib.Devices.Battery250UP</RootNamespace>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="../../Protocols/Modbus/Modbus.csproj" />
<ProjectReference Include="../../StatusApi/StatusApi.csproj" />
</ItemGroup>
</Project>

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@ -0,0 +1,35 @@
using InnovEnergy.Lib.Utils;
namespace InnovEnergy.Lib.Devices.Battery250Up;
public class Battery250UpDevices
{
private readonly IReadOnlyList<Battery250UpDevice> _Devices;
public Battery250UpDevices(IReadOnlyList<Battery250UpDevice> devices) => _Devices = devices;
public Battery250UpRecords? Read()
{
var records = _Devices
.Select(TryRead)
.NotNull()
.ToList();
return Battery250UpRecords.FromBatteries(records);
}
private static Battery250UpRecord? TryRead(Battery250UpDevice d)
{
try
{
return d.Read();
}
catch (Exception e)
{
Console.WriteLine($"Failed to read Battery node {d.SlaveId}\n{e.Message}");
// TODO: log
return null;
}
}
}

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@ -0,0 +1,259 @@
using System.Diagnostics.CodeAnalysis;
using System.Text;
using InnovEnergy.Lib.Devices.Battery250Up.DataTypes;
using InnovEnergy.Lib.Units;
using InnovEnergy.Lib.Units.Power;
using static InnovEnergy.Lib.Devices.Battery250Up.DataTypes.LedState;
namespace InnovEnergy.Lib.Devices.Battery250Up;
using Strings = IReadOnlyList<String>;
[SuppressMessage("ReSharper", "InconsistentNaming")]
[SuppressMessage("ReSharper", "ConvertToAutoProperty")]
public partial class Battery250UpRecord
{
public Dc_ Dc => new Dc_(this);
public Leds_ Leds => new Leds_(this);
public Temperatures_ Temperatures => new Temperatures_(this);
public StringActive_ BatteryStrings => new StringActive_(this);
public IoStatus_ IoStatus => new IoStatus_(this);
public Boolean Eoc => ParseEocReached();//Leds is { Green: On, Amber: Off, Blue : Off }; // ParseEocReached(); //
public UInt16 IoStates => _IoStates;
public UInt16 LimpBitMap => _LimpBitMap;
public String BatteryState => ParseBatteryState();
public String SerialNumber => $"{_SerialNum1:X4}{_SerialNum2:X4}{_SerialNum3:X4}{_SerialNum4:X4}".TrimEnd('0');
public String FwVersion => _FwVersion.ToString("X4");
public Strings Warnings => ParseWarnings().OrderBy(w => w).ToList();
public Strings Alarms => ParseAlarms() .OrderBy(w => w).ToList();
public Percent Soc => _Soc;
public Double SOCAh => _SOCAh;
public Current BusCurrent => _BusCurrent;
public Current CellsCurrent => _CellsCurrent;
public Current HeatingCurrent => _BusCurrent - _CellsCurrent;
public DcPower HeatingPower => HeatingCurrent * Dc.Voltage;
// Time since TOC is a counter from the last moment when the battery reached EOC
// When The battery is full charged (reached EOC) the Time Since TOC is set to 0
public TimeSpan TimeSinceTOC => TimeSpan.FromMinutes(_TimeSinceToc);
public Boolean CalibrationChargeRequested => TimeSinceTOC > TimeSpan.FromDays(7); // From AF0A (Fw Version) Each 14 days , But Max and Peter asked for 7 days.
public readonly struct Leds_
{
public LedState Blue => Self.ParseLed(LedColor.Blue);
public LedState Red => Self.ParseLed(LedColor.Red);
public LedState Green => Self.ParseLed(LedColor.Green);
public LedState Amber => Self.ParseLed(LedColor.Amber);
private Battery250UpRecord Self { get; }
internal Leds_(Battery250UpRecord self) => this.Self = self;
}
public readonly struct StringActive_
{
public Boolean String1Active => (Self._LimpBitMap & 1) == 0;
public Boolean String2Active => (Self._LimpBitMap & 2) == 0;
public Boolean String3Active => (Self._LimpBitMap & 4) == 0;
public Boolean String4Active => (Self._LimpBitMap & 8) == 0;
public Boolean String5Active => (Self._LimpBitMap & 16) == 0;
internal StringActive_(Battery250UpRecord self) => Self = self;
private Battery250UpRecord Self { get; }
}
public readonly struct IoStatus_
{
public Boolean ConnectedToDcBus => ((Self._IoStates >> 0) & 1) == 0;
public Boolean AlarmOutActive => ((Self._IoStates >> 1) & 1) == 0;
public Boolean InternalFanActive => ((Self._IoStates >> 2) & 1) == 1;
public Boolean VoltMeasurementAllowed => ((Self._IoStates >> 3) & 1) == 1;
public Boolean AuxRelayBus => ((Self._IoStates >> 4) & 1) == 0;
public Boolean RemoteStateActive => ((Self._IoStates >> 5) & 1) == 1;
public Boolean RiscActive => ((Self._IoStates >> 6) & 1) == 1;
internal IoStatus_(Battery250UpRecord self) => Self = self;
private Battery250UpRecord Self { get; }
}
public readonly struct Temperatures_
{
public Boolean Heating => (Self._IoStates & 64) != 0;
public Temperature Board => Self._TemperaturesBoard;
public Cells_ Cells => new Cells_(Self);
public TemperatureState State => Self.Leds switch
{
{ Green: >= Blinking, Blue: >= Blinking } => TemperatureState.Cold,
_ => TemperatureState.Operation,
// TODO: overheated
};
internal Temperatures_(Battery250UpRecord self) => Self = self;
private Battery250UpRecord Self { get; }
}
public readonly struct Cells_
{
public Temperature Center => Self._TemperaturesCellsCenter;
public Temperature Left => Self._TemperaturesCellsLeft;
public Temperature Right => Self._TemperaturesCellsRight;
public Temperature Average => Self._TemperaturesCellsAverage;
internal Cells_(Battery250UpRecord self) => Self = self;
private Battery250UpRecord Self { get; }
}
public readonly struct Dc_
{
public Voltage Voltage => Self._CellsVoltage;
public Current Current => Self._CellsCurrent;
public ActivePower Power => Self._CellsVoltage * Self._CellsCurrent;
internal Dc_(Battery250UpRecord self) => Self = self;
private Battery250UpRecord Self { get; }
}
private String ParseBatteryState()
{
var s1 = Encoding.ASCII.GetString(BitConverter.GetBytes(_BatteryState1).Reverse().ToArray()); // endian swap
var s2 = Encoding.ASCII.GetString(BitConverter.GetBytes(_BatteryState2).Reverse().ToArray()); // endian swap
return s1 + s2;
}
private Boolean ParseEocReached()
{
return "EOC_" == ParseBatteryState();
}
[SuppressMessage("ReSharper", "StringLiteralTypo")]
private IEnumerable<String> ParseAlarms()
{
Boolean HasBit(Int16 bit) => (_AlarmFlags & 1uL << bit) > 0;
if (HasBit(0)) yield return "Tam : Ambient Temperature too low";
if (HasBit(2)) yield return "TaM2 : Ambient Temperature too high";
if (HasBit(3) ) yield return "Tbm : Battery temperature too low";
if (HasBit(5) ) yield return "TbM2 : Battery temperature too high";
if (HasBit(7) ) yield return "VBm2 : Bus voltage too low";
if (HasBit(9) ) yield return "VBM2 : Bus voltage too high";
if (HasBit(11)) yield return "IDM2 : Discharge current too high";
if (HasBit(12)) yield return "ISOB : Electrical insulation failure";
if (HasBit(13)) yield return "MSWE : Main switch failure";
if (HasBit(14)) yield return "FUSE : Main fuse blown";
if (HasBit(15)) yield return "HTRE : Battery failed to warm up";
if (HasBit(16)) yield return "TCPE : Temperature sensor failure";
if (HasBit(17)) yield return "STRE : Voltage measurement circuit fails";
if (HasBit(18)) yield return "CME : Current sensor failure";
if (HasBit(19)) yield return "HWFL : BMS hardware failure";
if (HasBit(20)) yield return "HWEM : Hardware protection tripped";
if (HasBit(21)) yield return "ThM : Heatsink temperature too high";
if (HasBit(23)) yield return "vsm2 : Low string voltage failure";
if (HasBit(25)) yield return "vsM2 : String voltage too high";
if (HasBit(27)) yield return "iCM2 : Charge current too high";
if (HasBit(29)) yield return "iDM2 : Discharge current too high";
if (HasBit(31)) yield return "MID2 : String voltage unbalance too high";
if (HasBit(42)) yield return "HTFS : Heater Fuse Blown";
if (HasBit(43)) yield return "DATA : Parameters out of range";
if (HasBit(45)) yield return "LMPA : Unbalance string voltages";
if (HasBit(46)) yield return "HEBT : Loss of heartbeat";
if (HasBit(48)) yield return "CURM : Battery charge requested after EDCH";
}
[SuppressMessage("ReSharper", "StringLiteralTypo")]
private IEnumerable<String> ParseWarnings()
{
Boolean HasBit(Int16 bit) => (_WarningFlags & 1uL << bit) > 0;
if (HasBit(1) ) yield return "TaM1: BMS temperature high";
if (HasBit(4) ) yield return "TbM1: Battery temperature high";
if (HasBit(6) ) yield return "VBm1: Bus voltage low";
if (HasBit(8) ) yield return "VBM1: Bus voltage high";
if (HasBit(10)) yield return "IDM1: Discharge current high";
if (HasBit(22)) yield return "vsm1: String voltage too low";
if (HasBit(24)) yield return "vsM1: String voltage high";
if (HasBit(26)) yield return "iCM1: Charge current high";
if (HasBit(28)) yield return "iDM1: Discharge current high";
if (HasBit(30)) yield return "MID1: String voltages unbalanced";
if (HasBit(32)) yield return "BLPW: Not enough charging power on bus";
if (HasBit(33)) yield return "CCBF : Internal charger hardware failure";
if (HasBit(35)) yield return "Ah_W: String SOC low";
if (HasBit(38)) yield return "MPMM: Midpoint wiring problem";
if (HasBit(40)) yield return "TCdi: Temperature difference between strings high";
if (HasBit(44)) yield return "LMPW : String voltages unbalance warning";
if (HasBit(47)) yield return "TOCW : Top of Charge requested";
if (HasBit(49)) yield return "BUSL : Bus lower than string";
}
private Double CalcPowerLimitImposedByVoltageLimit(Double vLimit, Double rInt)
{
var v = Dc.Voltage;
var i = Dc.Current;
var dv = vLimit - v;
var di = dv / rInt;
return vLimit * (i + di);
}
private Double CalcPowerLimitImposedByCurrentLimit(Double iLimit, Double rInt)
{
var v = Dc.Voltage;
var i = Dc.Current;
var di = iLimit - i;
var dv = di * rInt;
return iLimit * (v + dv);
}
public DcPower MaxChargePower
{
get
{
var pLimits = new[]
{
CalcPowerLimitImposedByVoltageLimit(Constants.VMax, Constants.RIntMin),
CalcPowerLimitImposedByVoltageLimit(Constants.VMax, Constants.RIntMax),
CalcPowerLimitImposedByCurrentLimit(Constants.IMax, Constants.RIntMin),
CalcPowerLimitImposedByCurrentLimit(Constants.IMax, Constants.RIntMax)
};
var pLimit = pLimits.Min();
return Math.Max(pLimit, 0);
}
}
public DcPower MaxDischargePower
{
get
{
var pLimits = new[]
{
CalcPowerLimitImposedByVoltageLimit(Constants.VMin, Constants.RIntMin),
CalcPowerLimitImposedByVoltageLimit(Constants.VMin, Constants.RIntMax),
CalcPowerLimitImposedByCurrentLimit(-Constants.IMax, Constants.RIntMin),
CalcPowerLimitImposedByCurrentLimit(-Constants.IMax, Constants.RIntMax),
};
var pLimit = pLimits.Max();
return Math.Min(pLimit, 0);
}
}
}

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@ -0,0 +1,57 @@
using System.Diagnostics.CodeAnalysis;
using InnovEnergy.Lib.Devices.Battery250Up.DataTypes;
using InnovEnergy.Lib.Protocols.Modbus.Reflection.Attributes;
namespace InnovEnergy.Lib.Devices.Battery250Up;
#pragma warning disable CS0169, CS0649
[SuppressMessage("ReSharper", "InconsistentNaming")]
[SuppressMessage("ReSharper", "UnusedMember.Global")]
[SuppressMessage("ReSharper", "UnusedAutoPropertyAccessor.Local")]
[BigEndian]
public partial class Battery250UpRecord
{
[InputRegister(1004)] private UInt16 _LedStates;
[InputRegister<UInt64>(1005)] private UInt64 _WarningFlags;
[InputRegister<UInt64>(1009)] private UInt64 _AlarmFlags;
[InputRegister(1013)] private UInt16 _IoStates;
[InputRegister(999, Scale = 0.01)] private Double _CellsVoltage;
[InputRegister(1001, Scale = 0.01)] private Double _BusVoltage;
[InputRegister(1000, Scale = 0.01, Offset = -10000)] private Double _CellsCurrent;
[InputRegister(1002, Scale = 0.1, Offset = -10000)] private Double _SOCAh;
[InputRegister(1062, Scale = 0.01, Offset = -10000)] private Double _BusCurrent;
[InputRegister(1053, Scale = 0.1)] private Double _Soc;
[InputRegister(1052)] private UInt16 _TimeSinceToc;
[InputRegister(1014, Scale = 0.1, Offset = -400)] private Double _TemperaturesBoard;
[InputRegister(1015, Scale = 0.1, Offset = -400)] private Double _TemperaturesCellsCenter;
[InputRegister(1016, Scale = 0.1, Offset = -400)] private Double _TemperaturesCellsLeft;
[InputRegister(1017, Scale = 0.1, Offset = -400)] private Double _TemperaturesCellsRight;
[InputRegister(1003, Scale = 0.1, Offset = -400)] private Double _TemperaturesCellsAverage;
[InputRegister(1054)] private UInt16 _FwVersion;
[InputRegister(1055)] private UInt16 _SerialNum1;
[InputRegister(1056)] private UInt16 _SerialNum2;
[InputRegister(1057)] private UInt16 _SerialNum3;
[InputRegister(1058)] private UInt16 _SerialNum4;
[InputRegister(1059)] private UInt16 _LimpBitMap;
[InputRegister(1060)] private UInt16 _BatteryState1;
[InputRegister(1061)] private UInt16 _BatteryState2;
//[InputRegister(1063)] private UInt16 _TotalBatteryCycle;
private LedState ParseLed(LedColor led) => (LedState)((_LedStates >> (Int32)led) & 3);
// public Decimal CellsVoltage { get; init; }
//
// public Decimal MaxChargingPower { get; init; }
// public Decimal MaxDischargingPower { get; init; }
}

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@ -0,0 +1,50 @@
using InnovEnergy.Lib.Units;
using InnovEnergy.Lib.Units.Composite;
using InnovEnergy.Lib.Units.Power;
namespace InnovEnergy.Lib.Devices.Battery250Up;
public class Battery250UpRecords
{
public required DcBus Dc { get; init; }
public required Boolean Eoc { get; init; }
public required IReadOnlyList<String> Warnings { get; init; }
public required IReadOnlyList<String> Alarms { get; init; }
public required Percent Soc { get; init; }
public required Double SocAh { get; init; }
public required Percent CurrentMinSoc { get; init; }
public required Temperature Temperature { get; init; }
public required DcPower HeatingPower { get; init; }
public required TimeSpan TimeSinceToc { get; init; }
public required Boolean CalibrationChargeRequested { get; init; }
public required IReadOnlyList<Battery250UpRecord> Devices { get; init; }
public static Battery250UpRecords? FromBatteries(IReadOnlyList<Battery250UpRecord>? records)
{
if (records is null || records.Count == 0)
return null;
return new Battery250UpRecords
{
Devices = records,
Eoc = records.All(r => r.Eoc),
Warnings = records.SelectMany(r => r.Warnings).Distinct().ToList(),
Alarms = records.SelectMany(r => r.Alarms).Distinct().ToList(),
Soc = records.Average(r => r.Soc.Value),
SocAh = records.Average(r => r.SOCAh),
CurrentMinSoc = records.Min(r => r.Soc.Value),
Temperature = records.Average(b => b.Temperatures.Cells.Average.Value),
HeatingPower = records.Sum(b => b.HeatingPower),
TimeSinceToc = records.Max(r => r.TimeSinceTOC),
CalibrationChargeRequested = records.Any(r => r.CalibrationChargeRequested), // we changed this to Any instead of All, it's mean we wait only one battery to reach the 7 days
Dc = new()
{
Voltage = records.Average(r => r.Dc.Voltage),
Current = records.Sum(r => r.Dc.Current),
}
};
}
}

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@ -0,0 +1,48 @@
using System.IO.Ports;
using InnovEnergy.Lib.Protocols.Modbus.Channels;
using InnovEnergy.Lib.Protocols.Modbus.Clients;
using InnovEnergy.Lib.Protocols.Modbus.Slaves;
using InnovEnergy.Lib.Utils;
using static System.IO.Ports.Parity;
namespace InnovEnergy.Lib.Devices.Battery250Up;
public class Battery250UpDevice : ModbusDevice<Battery250UpRecord>
{
public const Parity Parity = Odd;
public const Int32 StopBits = 1;
public const Int32 BaudRate = 115200;
public const Int32 DataBits = 8;
public Byte SlaveId { get; }
public Battery250UpDevice(String tty, Byte slaveId, SshHost host) : this
(
channel: new RemoteSerialChannel(host, tty, BaudRate, Parity, DataBits, StopBits),
slaveId
)
{}
public Battery250UpDevice(String tty, Byte slaveId, String? host = null) : this
(
channel: host switch
{
null => new SerialPortChannel ( tty, BaudRate, Parity, DataBits, StopBits),
_ => new RemoteSerialChannel(host, tty, BaudRate, Parity, DataBits, StopBits)
},
slaveId
)
{}
public Battery250UpDevice(Channel channel, Byte slaveId) : this
(
client: new ModbusRtuClient(channel, slaveId)
)
{}
public Battery250UpDevice(ModbusClient client): base(client)
{
SlaveId = client.SlaveId;
}
}

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@ -0,0 +1,11 @@
using InnovEnergy.Lib.Units;
namespace InnovEnergy.Lib.Devices.Battery250Up.DataTypes;
public readonly struct CellTemperatures
{
public Temperature Center { get; internal init; }
public Temperature Left { get; internal init; }
public Temperature Right { get; internal init; }
}

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@ -0,0 +1,31 @@
using System.Diagnostics.CodeAnalysis;
using System.IO.Ports;
using static System.IO.Ports.Parity;
namespace InnovEnergy.Lib.Devices.Battery250Up.DataTypes;
[SuppressMessage("ReSharper", "InconsistentNaming")]
public static class Constants
{
public const Int32 BaseAddress = 1000;
public const Int32 NoOfRegisters = 56;
public const Parity Parity = Odd;
public const Int32 StopBits = 1;
public const Int32 BaudRate = 115200;
public const Int32 DataBits = 8;
public static TimeSpan Timeout { get; } = TimeSpan.FromMilliseconds(100);
public const Double VMax = 59.0;
public const Double VMin = 42.0;
public const Double AhPerString = 40.0;
private const Double RStringMin = 0.125;
private const Double RStringMax = 0.250;
private const Double IMaxPerString = 20.0;
private const UInt16 NumberOfStrings = 5;
public const Double RIntMin = RStringMin / NumberOfStrings;
public const Double RIntMax = RStringMax / NumberOfStrings;
public const Double IMax = NumberOfStrings * IMaxPerString;
}

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@ -0,0 +1,9 @@
namespace InnovEnergy.Lib.Devices.Battery250Up.DataTypes;
public enum LedColor
{
Green = 0, // don't change: numbers are important
Amber = 2,
Blue = 4,
Red = 6,
}

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@ -0,0 +1,9 @@
namespace InnovEnergy.Lib.Devices.Battery250Up.DataTypes;
public enum LedState
{
Off = 0,
On = 1,
Blinking = 2,
BlinkingFast = 3
}

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@ -0,0 +1,9 @@
namespace InnovEnergy.Lib.Devices.Battery250Up.DataTypes;
public readonly struct Leds
{
public LedState Blue { get; internal init; }
public LedState Green { get; internal init; }
public LedState Amber { get; internal init; }
public LedState Red { get; internal init; }
}