public override int Parse(byte[] _Data, int Count, CMessage message, byte[] SendData)
{
//报文解析
if (Count > 256)
{
return(1); //报文太长
}
//首先查看地址和功能码是否正确
if (_Data[0] != (byte)this.Address || _Data[1] != message.Schema[1])
{
if (message.Schema[1] == 0x14 && _Data[1] == (byte)0x94 && _Data[2] == 0x05)
{
//录波文件读取时需要等待并重试
return(-1);
}
else
{
return(2); //地址或者功能码错误
}
}
//然后查看CRC是否正确
int crc = CRC16.calcCrc16(_Data, 0, Count - 2);
byte crclow = (byte)(crc & 0x00FF);
byte crchight = (byte)((crc & 0xFF00) >> 8);
if (_Data[Count - 2] != crclow || _Data[Count - 1] != crchight)
{
return(3); //CRC错误
}
for (int i = 0; i < Count; i++)
{
message.Response[i] = CommonUtility.ByteToInt(_Data[i]);
}
if (message.Response[1] != 3 && message.Response[1] != 4)
{
return(0); //非03或者04功能码，不需要继续处理
}
int StartOffSet = 3;
for (int i = 0; i < message.Vars.Count; i++)
{
CVar var = message.Vars[i];
int RawValue = 0;
if (var.BitOffset < 0)
{
if (var.Length == 16)
{
RawValue = message.Response[var.ByteOffset + StartOffSet] * 256 + message.Response[var.ByteOffset + 1 + StartOffSet];
}
else if (var.Length == 32)
{
if (this.DoubleWordMode == "LH")
{
RawValue = message.Response[var.ByteOffset + StartOffSet] * 256 + message.Response[var.ByteOffset + 1 + StartOffSet] + 65536 * (message.Response[var.ByteOffset + 2 + StartOffSet] * 256 + message.Response[var.ByteOffset + 3 + StartOffSet]);
}
else
{
RawValue = 65536 * (message.Response[var.ByteOffset + StartOffSet] * 256 + message.Response[var.ByteOffset + 1 + StartOffSet]) + message.Response[var.ByteOffset + 2 + StartOffSet] * 256 + message.Response[var.ByteOffset + 3 + StartOffSet];
}
}
}
else
{
RawValue = message.Response[var.ByteOffset + StartOffSet] * 256 + message.Response[var.ByteOffset + 1 + StartOffSet];
RawValue = RawValue << (16 - var.Length - var.BitOffset);
RawValue = RawValue & 0x0000FFFF;
RawValue = RawValue >> (16 - var.Length);
}
double value = RawValue * var.Multiple;
if (var.Memo == ("最高位为1扩大100倍，为0扩大10倍"))
{
if (RawValue < 32768)
{
value = RawValue * 0.1;
}
else
{
value = (RawValue - 32768) * 0.01;
}
}
String VarName = var.Name;
if (message.Type == 2)
{
int MessageAddress = CommonUtility.ByteToInt(SendData[3]);
int OriginAddress = CommonUtility.ByteToInt(this.GetMessage(message.Index).Schema[3]);
int IndexV = (MessageAddress - OriginAddress) / 0x08;
if (message.Index == 35)
{
IndexV = (MessageAddress - OriginAddress) / 0x10;
}
VarName = VarName + IndexV;
}
if (var.Table)
{
//查表
Object TableValue = var.SearchTableValue(RawValue);
if (TableValue != null)
{
RTDB.SetVarValue(this.Name, VarName, TableValue);
}
else
{
RTDB.SetVarValue(this.Name, VarName, "#Error#");
}
continue;
}
if (var.Desc.IndexOf("年月日") >= 0)
{
byte[] Date = new byte[3];
Date[0] = (byte)(RawValue >> 16);
Date[1] = (byte)((RawValue << 16) >> 24);
Date[2] = (byte)((RawValue << 24) >> 24);
String DateStr = CommonUtility.Bcd2Str(Date);
String DateValue = "20" + DateStr.Substring(0, 2) + "-" + DateStr.Substring(2, 2) + "-" + DateStr.Substring(4, 2);
RTDB.SetVarValue(this.Name, VarName, DateValue);
}
else if (var.Desc.IndexOf("时分秒") >= 0)
{
byte[] Date = new byte[3];
Date[0] = (byte)(RawValue >> 16);
Date[1] = (byte)((RawValue << 16) >> 24);
Date[2] = (byte)((RawValue << 24) >> 24);
String DateStr = CommonUtility.Bcd2Str(Date);
String DateValue = DateStr.Substring(0, 2) + ":" + DateStr.Substring(2, 2) + ":" + DateStr.Substring(4, 2);
RTDB.SetVarValue(this.Name, VarName, DateValue);
}
else if (var.Desc.IndexOf("版本") >= 0)
{
byte[] Version = new byte[4];
Version[0] = (byte)(RawValue >> 24);
Version[1] = (byte)(RawValue >> 16);
Version[2] = (byte)((RawValue << 16) >> 24);
Version[3] = (byte)((RawValue << 24) >> 24);
String VersionStr = CommonUtility.Bcd2Str(Version);
String VersionValue = VersionStr.Substring(0, 2) + "." + VersionStr.Substring(2, 2) + "." + VersionStr.Substring(4, 2) + "." + VersionStr.Substring(6, 2);
RTDB.SetVarValue(this.Name, VarName, VersionValue);
}
else if (var.Memo == ("有符号整型"))
{
short ShortRawValue = (short)(CommonUtility.ByteToShort(_Data[var.ByteOffset + StartOffSet]) * 256 + CommonUtility.ByteToShort(_Data[var.ByteOffset + 1 + StartOffSet]));
value = ShortRawValue * var.Multiple;
RTDB.SetVarValue(this.Name, VarName, value);
}
else if (var.Name == ("PScale"))
{
if (RawValue == 0)
{
this.GetVar("P").Unit = "kW";
}
else
{
this.GetVar("P").Unit = "W";
}
RTDB.SetVarValue(this.Name, VarName, value);
}
else if (var.Name == ("QScale"))
{
if (RawValue == 0)
{
this.GetVar("Q").Unit = "kVar";
}
else
{
this.GetVar("Q").Unit = "Var";
}
RTDB.SetVarValue(this.Name, VarName, value);
}
else if (var.DataType == 9)
{
String BoolStr = RawValue == 0 ? "否" : "是";
RTDB.SetVarValue(this.Name, VarName, BoolStr);
}
else
{
RTDB.SetVarValue(this.Name, VarName, value);
}
}
return(0); //成功
}