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using JiShe.CollectBus.Common.Enums;
using JiShe.CollectBus.Common.Models;
namespace JiShe.CollectBus.Common.Extensions
{
public static class HexStringExtensions
{
//起始字符
private const string startStr = "68";
//结束字符
private const string endStr = "16";
//头部字节长度
private const int hearderLen = 6;
//消息认证码字段长度
private const int pWLen = 16;
private const int tPLen = 6;
private const int FixedLength = 18;
public static object GetAnalyzeValue(this List<string> hexStringList, CommandChunkEnum chunk)
{
if (hexStringList.Count < hearderLen || hexStringList[0] != startStr || hexStringList[5] != startStr || hexStringList.Count < FixedLength)
{
return null;
}
switch (chunk)
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{
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case CommandChunkEnum.AFN:
var aFn = hexStringList[(int)CommandChunkEnum.AFN].HexToDec();//1字节
return aFn;
case CommandChunkEnum.FN:
//(DT2*8)+DT1=fn
var dt1Bin = hexStringList[(int)CommandChunkEnum.FN - 1].HexToBin();
var dt1 = dt1Bin != "0" ? dt1Bin.Length : 0;
var dt2 = hexStringList[(int)CommandChunkEnum.FN].HexToDec();
var fn = dt2 * 8 + dt1;
return fn;
case CommandChunkEnum.A:
var aHexList = hexStringList.Skip((int)CommandChunkEnum.A).Take(5).ToList();
var a1 = aHexList[1] + aHexList[0];
var a2 = aHexList[3] + aHexList[2];
var a2Dec = a2.HexToDec();
var a3 = aHexList[4];
var a = $"{a1}{a2Dec.ToString().PadLeft(5, '0')}";
var a3Bin = aHexList[4].HexToBin().PadLeft(8, '0');
var msa = a3Bin.Substring(0, 7).BinToDec();
return new Tuple<string,int>(a, msa);
case CommandChunkEnum.SEQ:
var seq = hexStringList[(int)CommandChunkEnum.SEQ].HexToBin().PadLeft(8, '0');
var tpV = (TpV)Convert.ToInt32(seq.Substring(0, 1));
var firfin = (FIRFIN)Convert.ToInt32(seq.Substring(1, 2));
var con = (CON)Convert.ToInt32(seq.Substring(3, 1));
var prseqBin = seq.Substring(4, 4);
return new Seq
{
CON = con,
FIRFIN = firfin,
PRSEQ = prseqBin.BinToDec(),
TpV = tpV
};
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case CommandChunkEnum.Data:
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var lenIndex = (int)CommandChunkEnum.Len;
var lenBin = (hexStringList[lenIndex + 1]+hexStringList[lenIndex]).HexToBin();
var len = lenBin.Remove(lenBin.Length - 2).BinToDec();
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//验证长度 2=(帧校验和+结束字符)
if (hexStringList.Count - 2 != hearderLen + len)
return null;
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var dataHexList = hexStringList.Skip(FixedLength).Take(len + hearderLen - FixedLength).ToList();
return dataHexList;
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default:
throw new ArgumentOutOfRangeException(nameof(chunk), chunk, null);
}
}
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public static bool IsStartStr(this string str)
{
return str == startStr ? true : false;
}
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/// <summary>
/// 字节加33
/// </summary>
/// <param name="hexStringList"></param>
/// <returns></returns>
public static List<string> AddHex33(this List<string> hexStringList)
{
for (int i = 0; i < hexStringList.Count; i++)
{
hexStringList[i] = (Convert.ToInt32(hexStringList[i], 16) + Convert.ToInt32("33", 16)).ToString("X2");
if (hexStringList[i].Length > 2)
{
hexStringList[i] = hexStringList[i].Substring(hexStringList[i].Length - 2);
}
}
return hexStringList;
}
#region 376.1
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/// <summary>
/// 构建电表参数设置-下发命令
/// </summary>
/// <param name="reqParameter"></param>
/// <param name="meterParameters"></param>
/// <returns></returns>
public static byte[] BuildAmmeterParameterSetSendCmd(ReqParameter reqParameter, List<AmmeterParameter> meterParameters)
{
var dataUnit = BuildAmmeterParameterSendDataUnit(meterParameters);
var bytes = BuildSendCommandBytes(reqParameter, dataUnit);
return bytes;
}
/// <summary>
/// 构建电表参数读取-下发命令
/// </summary>
/// <param name="reqParameter"></param>
/// <param name="meterNumberList">对象序号</param>
public static void BuildAmmeterParameterReadingSendCmd(ReqParameter reqParameter, List<int> meterNumberList)
{
var dataUnit = new List<string>();
var countHex = meterNumberList.Count().DecToHex().PadLeft(4, '0');
var countHexPairs = countHex.StringToPairs();
countHexPairs.Reverse();
dataUnit.AddRange(countHexPairs);
foreach (var number in meterNumberList)
{
var numberHex = number.DecToHex().PadLeft(4, '0');
var numberHexPairs = numberHex.StringToPairs();
numberHexPairs.Reverse();
dataUnit.AddRange(numberHexPairs);
}
var bytes = BuildSendCommandBytes(reqParameter, dataUnit);
}
/// <summary>
/// 构建透明转发-下发数据单元
/// </summary>
/// <param name="port">终端通信端口 1~31</param>
/// <param name="baudRate">0~7 对应300,600,1200,2400,4800,7200,9600,19200</param>
/// <param name="stopBit"></param>
/// <param name="parity"></param>
/// <param name="dataBit"></param>
/// <returns></returns>
public static List<string> BuildTransparentForwardingSendDataUnit(int port, BaudRate baudRate, StopBit stopBit, Parity parity, DataBit dataBit,
int waitContentTimeout, int waitByteTimeout, List<string> datas)
{
var dataUnit = new List<string>();
var portHex = port.DecToHex().PadLeft(2, '0');
dataUnit.Add(portHex);
var baudRateBin = ((int)baudRate).DecToBin().PadLeft(3, '0');
var stopBitBin = ((int)stopBit).DecToBin();
var parityBin = parity != Parity.None ? $"1{((int)parity).DecToBin()}" : $"0{((int)parity).DecToBin()}";
var dataBitBin = ((int)dataBit).DecToBin().PadLeft(2, '0');
var controlHex = $"{baudRateBin}{stopBitBin}{parityBin}{dataBitBin}".BinToHex().PadLeft(2, '0'); ;
dataUnit.Add(controlHex);
var waitContentTimeoutBin = $"1{waitContentTimeout.DecToBin().PadLeft(7, '0')}";
var waitContentTimeoutHex = waitContentTimeoutBin.BinToHex().PadLeft(2, '0');
var waitByteTimeoutHex = waitByteTimeout.DecToHex().PadLeft(2, '0');
dataUnit.Add(waitContentTimeoutHex);
dataUnit.Add(waitByteTimeoutHex);
var countHex = datas.Count.DecToHex().PadLeft(4, '0');
var countHexPairs = countHex.StringToPairs();
countHexPairs.Reverse();
dataUnit.AddRange(countHexPairs);
dataUnit.AddRange(datas);
return dataUnit;
}
/// <summary>
/// 构建下发命令
/// </summary>
/// <param name="reqParameter"></param>
/// <param name="dataUnit"></param>
/// <returns></returns>
public static byte[] BuildSendCommandBytes(ReqParameter reqParameter, List<string>? dataUnit = null)
{
var cmdStrList = new List<string>();
var userDatas = BuildUserData(reqParameter, dataUnit);
var hearders = BuildHeaders(userDatas.Count);
var cs = GetCS(userDatas);
cmdStrList.AddRange(hearders);
cmdStrList.AddRange(userDatas);
cmdStrList.Add(cs);
cmdStrList.Add(endStr);
var bytes = cmdStrList.Select(x => Convert.ToByte(x, 16)).ToArray();
return bytes;
}
/// <summary>
/// 构建电表参数设置-下发数据单元
/// </summary>
/// <param name="meterParameters"></param>
/// <returns></returns>
private static List<string> BuildAmmeterParameterSendDataUnit(List<AmmeterParameter> meterParameters)
{
var hexDatas = new List<string>();
var countHex = meterParameters.Count().DecToHex().PadLeft(4, '0');
hexDatas.Add(countHex);
//TODO 优化代码:目标数据入参,返回类型为出参
for (int i = 0; i <= meterParameters.Count - 1; i++)
{
var meter = meterParameters[i];
var indexHex = (i + 1).DecToHex().PadLeft(4, '0');
hexDatas.Add(indexHex);
var pnHex = meter.Pn.DecToHex().PadLeft(4, '0');
hexDatas.Add(pnHex);
var baudRateBin = meter.BaudRate.DecToBin().PadLeft(3, '0');
var portBin = meter.Port.DecToBin().PadLeft(5, '0');
var baudRateAndPortHex = $"{baudRateBin}{portBin}".BinToHex().PadLeft(2, '0');
hexDatas.Add(baudRateAndPortHex);
var protocolTypeHex = ((int)meter.ProtocolType).DecToHex().PadLeft(2, '0');
hexDatas.Add(protocolTypeHex);
hexDatas.Add(meter.Address);
hexDatas.Add(meter.Password.PadLeft(12, '0'));
var rateNumberBin = $"0000{meter.RateNumber.DecToBin().PadLeft(4, '0')}";
var rateNumberHex = rateNumberBin.BinToHex().PadLeft(2, '0');
hexDatas.Add(rateNumberHex);
var intBitNumberBin = (meter.IntegerBitNumber - 4).DecToBin().PadLeft(2, '0');
var decBitNumberBin = (meter.DecimalBitNumber - 1).DecToBin().PadLeft(2, '0');
var intAndDecBitNumberBin = $"0000{intBitNumberBin}{decBitNumberBin}";
var intAndDecBitNumberHex = intAndDecBitNumberBin.BinToHex().PadLeft(2, '0');
hexDatas.Add(intAndDecBitNumberHex);
hexDatas.Add(meter.CollectorAddress.PadLeft(12, '0'));
var userCategoryNumberBin = meter.UserCategoryNumber.DecToBin().PadLeft(4, '0');
var userSubclassNumberBin = meter.UserSubclassNumber.DecToBin().PadLeft(4, '0');
var userNumberHex = $"{userCategoryNumberBin}{userSubclassNumberBin}".BinToHex().PadLeft(2, '0');
hexDatas.Add(userNumberHex);
}
//高位在前,低位在后
var datas = new List<string>();
foreach (var hexData in hexDatas)
{
if (hexData.Length == 2)
datas.Add(hexData);
else
{
var lst = hexData.StringToPairs();
lst.Reverse();
datas.AddRange(lst);
}
}
datas.AddRange(GetPW());
return datas;
}
//AUX=消息认证码字段PW,16个字节
private static List<string> GetPW()
{
var str = "00";
var pWList = Enumerable.Repeat(str, pWLen).ToList();
return pWList;
}
/// <summary>
/// 帧校验和
/// </summary>
/// <param name="userData">用户数据区</param>
/// <returns></returns>
private static string GetCS(List<string> userData)
{
byte sum = 0;
foreach (var d in userData)
{
var b = Convert.ToByte(d, 16);
sum += b;
}
return sum.ToString("X2");
}
/// <summary>
/// 用户数据区
/// </summary>
/// <param name="reqParameter"></param>
/// <returns></returns>
private static List<string> BuildUserData(ReqParameter reqParameter, List<string>? dataUnit)
{
var c = BuildC(reqParameter.FunCode, reqParameter.PRM);
var a = BuildAList(reqParameter.A, reqParameter.MSA);
var linkUserData = BuildLinkUserData(reqParameter.AFN, reqParameter.Seq,
((ReqParameter2)reqParameter).Pn, ((ReqParameter2)reqParameter).Fn, dataUnit);
var list = new List<string>() { c };
list.AddRange(a);
list.AddRange(linkUserData);
return list;
}
/// <summary>
/// 固定长度的报文头 起始字符+长度+长度+起始字符
/// </summary>
/// <param name="length"></param>
/// <returns></returns>
private static List<string> BuildHeaders(int length)
{
var headers = new List<string>();
headers.Add(startStr);
var l = BuildLength(length);
headers.AddRange(l);
headers.AddRange(l);
headers.Add(startStr);
return headers;
}
/// <summary>
/// 长度 2字节 [用户数据区长度]
/// </summary>
/// <returns></returns>
private static List<string> BuildLength(int length1)
{
var binaryLen = length1.DecToBin();
var protocolIdentification = Enum.Format(typeof(ProtocolIdentification),
ProtocolIdentification.使, "d").PadLeft(2, '0');
var lenStr = $"{binaryLen}{protocolIdentification}";
var hexLen = lenStr.BinToHex();
hexLen = hexLen.PadLeft(4, '0');
var list = hexLen.StringToPairs();
list.Reverse();
return list;
}
/// <summary>
/// 控制域
/// </summary>
/// <param name="funCode">功能码</param>
/// <param name="fcb"></param>
/// <param name="fcv"></param>
/// <returns></returns>
private static string BuildC(int funCode, PRM pRM, int fcb = 0, FCV fcv = FCV.FCB位无效)
{
var cMasterStationFunCodeHex = funCode.DecToBin();
cMasterStationFunCodeHex = cMasterStationFunCodeHex.ToString().PadLeft(4, '0');
var strC = $"{(int)DIR.主站下行报文}{(int)pRM}{fcb}{(int)fcv}{cMasterStationFunCodeHex}";
var hexC = strC.BinToHex().PadLeft(2, '0');
return hexC;
}
/// <summary>
/// 地址域 3220 09872
/// </summary>
/// <param name="a1">行政区划码 BCD码 3220=2032</param>
/// <param name="a2">逻辑地址 BIN 09872=2690=>9026</param>
/// <param name="a3">主站地址 BIN 0~127</param>
/// <returns></returns>
private static List<string> BuildAList(string a, int mSA)
{
var list = new List<string>();
var a1 = a.Substring(0, 4);
var a1Pairs = a1.StringToPairs();
a1Pairs.Reverse();
list.AddRange(a1Pairs);
var a2 = Convert.ToInt32(a.Substring(4));
var decA2 = a2.DecToHex();
var a2Pairs = decA2.PadLeft(4, '0').StringToPairs();
a2Pairs.Reverse();
list.AddRange(a2Pairs);
//TODO:主站地址和组地址标志
var a3Bin = $"{mSA.DecToBin().PadLeft(7, '0')}0";
list.Add(a3Bin.BinToHex().PadLeft(2, '0'));
return list;
}
private static List<string> BuildLinkUserData(AFN aFN, Seq seq, int pn, int fn, List<string>? dataUnit)
{
var aFNValue = ((int)aFN).DecToHex().PadLeft(2, '0');
var sEQ = BuildSEQ(seq.TpV, seq.FIRFIN, seq.CON, seq.PRSEQ);
var dA = BuildDA(pn);
var dT = BuildDT(fn);
var list = new List<string>() { aFNValue, sEQ };
list.AddRange(dA);
list.AddRange(dT);
if (dataUnit != null)
{
list.AddRange(dataUnit);
}
//list.AddRange(GetDataUnit(aFN,seq));
if (seq.TpV == TpV.)
list.AddRange(BuildTp("00"));
return list;
}
/// <summary>
/// 帧序列域
/// </summary>
/// <param name="tpV"></param>
/// <param name="fIRFIN"></param>
/// <param name="cON"></param>
/// <returns></returns>
private static string BuildSEQ(TpV tpV, FIRFIN fIRFIN, CON cON, int pRSEQ)
{
var tpVValue = Enum.Format(typeof(TpV),
tpV, "d");
var fIRFINValue = Enum.Format(typeof(FIRFIN),
fIRFIN, "d");
var cONValue = (int)cON;
var sEQBin = $"{tpVValue}{fIRFINValue}{cONValue}{pRSEQ.DecToBin().PadLeft(4, '0')}";
var hexSEQ = sEQBin.BinToHex().PadLeft(2, '0');
return hexSEQ;
}
/// <summary>
/// 信息点标识
/// </summary>
/// <param name="pn">计量点</param>
/// <returns></returns>
private static List<string> BuildDA(int pn)
{
if (pn == 0)
return new List<string>() { "00", "00" };
var dA2 = (pn - 1) / 8 + 1;//信息点组从1开始 第几组
var dA1 = pn - (dA2 - 1) * 8;//pn % 8
var dA1Hex = "1".PadRight(dA1, '0').BinToHex();//对位信息 第几位 二进制有效位
var dA2Hex = dA2.DecToHex();
return new List<string>() { dA1Hex.PadLeft(2, '0'), dA2Hex.PadLeft(2, '0') };
}
/// <summary>
/// 数据单元标识
/// </summary>
/// <param name="fn"></param>
/// <returns></returns>
private static List<string> BuildDT(int fn)
{
var dT2 = (fn - 1) / 8;//从零开始 第几组
var dT1 = fn - dT2 * 8;
var dT1Hex = "1".PadRight(dT1, '0').BinToHex();//对位信息 第几位 二进制有效位
var dT2Hex = dT2.DecToHex();
return new List<string>() { dT1Hex.PadLeft(2, '0'), dT2Hex.PadLeft(2, '0') };
}
/// <summary>
/// 时间标签
/// </summary>
/// <param name="pFC">启动帧帧序号计数器PFC 1字节</param>
/// <param name="delayTime">允许发送传输延时时间 min 1字节</param>
/// <returns></returns>
private static List<string> BuildTp(string pFC = "00", int delayTime = 0)
{
var now = DateTime.Now; // 获取当前时间
var seconds = now.Second.ToString().PadLeft(2, '0'); // 获取当前秒数
var minutes = now.Minute.ToString().PadLeft(2, '0'); // 获取当前分钟数
var hours = now.Hour.ToString().PadLeft(2, '0'); // 获取当前小时数
var day = now.Day.ToString().PadLeft(2, '0'); // 获取当前日期的日数
return new List<string>() { pFC, seconds, minutes, hours, day, delayTime.ToString().PadLeft(2, '0') };
}
#endregion
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#region 645
/// <summary>
/// 构建电表阀控下发数据单元
/// </summary>
/// <param name="address">电表地址</param>
/// <param name="specialnoode">特殊控制码</param>
/// <param name="password">密码</param>
/// <param name="state">是否为开阀</param>
/// <returns></returns>
public static List<string> BuildAmmeterValveControlSendDataUnit(string address, string specialnocode, string password, bool state, string modelCode = "")
{
var code = string.Empty;
if (state)
{
if (string.IsNullOrEmpty(specialnocode))
code = "1B";
else
code = specialnocode == "1B" || specialnocode == "1C" ? specialnocode : "1C";
}
else
code = "1A";//跳闸
if (specialnocode == "1W")
{
if (state)
code = "1A";
else
code = "1C";
}
var pwdLevel = "02";
if (modelCode == "HL_DTSU2625" || modelCode == "DDZY9866")
pwdLevel = "04";
else if (modelCode == "DDS2705")
pwdLevel = "03"; //不带安全认证密级
if (!string.IsNullOrWhiteSpace(password) && password.Contains("|"))
{
var sp = password.Split('|');
pwdLevel = sp[1];
password = sp[0];
}
var strDate = DateTime.Now.AddYears(3).ToString("000012ddMMyy").StrAddSpan();//命令有效截止时间
if (specialnocode == "1D" || modelCode == "SZBD_DDZY1225")
strDate = "FF FF FF FF FF FF";
var strP = password.StrAddSpan().StrReverseOrder();
var strSJY = " " + pwdLevel + " " + strP + " 01 00 00 00 " + code + " 00 " + strDate;
var dataUnit = strSJY.Replace(" ", "").StringToPairs();
var dataList = BuildSendCommand(address, "1C", dataUnit);
return dataList;
//string strLen = (strSJY.Replace(" ", "").Length / 2).ToString("X2");
//string strReturn = "68 " + address.StrAddSpan().StrReverseOrder() + " 68 1C " + strLen + " " + strSJY.StrAddHex33() + " ";
//string strSum = strReturn.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries).Select(i => Convert.ToInt32(i, 16)).Sum().ToString("X");
//strReturn += strSum.Substring(strSum.Length - 2) + " 16";
//return strReturn.Split(' ').ToList();
}
/// <summary>
/// 构建电表保电下发数据单元
/// </summary>
/// <param name="address">电表地址</param>
/// <param name="password"></param>
/// <param name="state"></param>
/// <returns></returns>
public static List<string> BuildAmmeterLockSendDataUnit(string address, string password, bool state, string modelCode = "")
{
string code = string.Empty;
if (state)
code = "3A";
else
code = "3B";
string strDate = (code + DateTime.Now.AddDays(1).ToString("00000012ddMMyy")).StrAddSpan();
if (modelCode == "SZBD_DDZY1225")
strDate = $"{code} 00 FF FF FF FF FF FF";
string strP = password.StrAddSpan().StrReverseOrder();
string strSJY = " 02 " + strP + " 01 00 00 00 " + strDate;
var dataUnit = strSJY.Replace(" ", "").StringToPairs();
var dataList = BuildSendCommand(address, "1C", dataUnit);
return dataList;
//string strLen = (strSJY.Replace(" ", "").Length / 2).ToString("X2");
//string strReturn = "68 " + address.StrAddSpan().StrReverseOrder() + " 68 1C " + strLen + " " + strSJY.StrAddHex33() + " ";
//string strSum = strReturn.Split(new string[] { " " }, System.StringSplitOptions.RemoveEmptyEntries).Select(i => Convert.ToInt32(i, 16)).Sum().ToString("X");
//strReturn += strSum.Substring(strSum.Length - 2) + " 16";
//return strReturn.Split(' ').ToList();
}
/// <summary>
/// 构建645协议下发命令
/// </summary>
/// <param name="ammeterAddress">电表地址</param>
/// <param name="controlCode">控制码</param>
/// <param name="dataUnit">数据域 发送方按字节进行加33处理接收方按字节减33</param>
/// <returns></returns>
public static List<string> BuildSendCommand(string ammeterAddress, string controlCode, List<string>? dataUnit)
{
var cmdStrList = new List<string>();
cmdStrList.Add(startStr);
ammeterAddress = ammeterAddress.PadLeft(12, '0');
var addressList = ammeterAddress.StringToPairs();
addressList.Reverse();
cmdStrList.AddRange(addressList);
cmdStrList.Add(startStr);
var len = dataUnit != null ? dataUnit.Count.DecToHex().PadLeft(2,'0') : "00";
cmdStrList.Add(len);
if (dataUnit != null)
{
cmdStrList.AddRange(dataUnit.AddHex33());
}
var strSum = cmdStrList.Select(i => Convert.ToInt32(i, 16)).Sum().ToString("X");
strSum = strSum.Substring(strSum.Length - 2);
cmdStrList.Add(strSum);
cmdStrList.Add(endStr);
return cmdStrList;
}
/// <summary>
/// 构建写数据 TODO:待优化
/// </summary>
/// <returns></returns>
public static List<string> AssembleWrite(string address, string password, string Di0_3, string[] data)
{
var address_str = address.StrAddSpan().StrReverseOrder();
var L = (12 + data.Length).ToString("X2");
var m = "00 11 22 33";
var Di0_3_str = Di0_3.StrAddSpan().StrReverseOrder();
var pwd_str = password.StrAddSpan().StrReverseOrder();
var data_str = string.Join(" ", data);
var data_add33 = (Di0_3_str + " 02 " + pwd_str + " " + m + " " + data_str).StrAddHex33();
var frame = $"68 {address_str} 68 14 {L} {data_add33}";
string strSum = frame.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries).Select(i => Convert.ToInt32(i, 16)).Sum().ToString("X");
var cs = strSum.Substring(strSum.Length - 2);
return $"{frame} {cs} 16".Split(' ').ToList();
}
#endregion
/// <summary>
/// 标准 188协议阀控 WaterMeterSend
/// </summary>
/// <param name="address"></param>
/// <param name="mtype"></param>
/// <returns></returns>
public static List<string> Confirm188WaterValve(string address, bool state, string mtype = "10")
{
if (string.IsNullOrWhiteSpace(address)) return null;
var frm = $"68 {mtype} [00 00 00 00 00 00 00] 04 04 A0 17 00 {(state ? "55" : "99")} 21 16".Split(' ').ToList();
address = address.PadLeft(14, '0');
int n = 0;
for (int i = 7; i > 0; i--)
{
frm[i + 1] = address.Substring(n, 2);
n += 2;
}
frm[frm.Count - 2] = GetCRC(frm.Take(frm.Count - 2).ToList());
return frm;
}
public static string GetCRC(List<string> inputFrm, int startIndex = 0)
{
int sum = 0;
for (int i = startIndex; i < inputFrm.Count; i++)
{
sum += (Convert.ToInt32(inputFrm[i], 16));
}
var sum16 = Convert.ToString(sum, 16);
return sum16.Substring(sum16.Length - 2, 2).ToUpper();
}
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}
}