public void BuilderObjFromBytesTest()
{
byte[] _orderCmd0x01 = { 0x00, 0x77, 0x00, 0x00, 0x00, 0x05, 0x02, 0x01, 0x02, 0x1F, 0x00 };
ModBusTCPUnPackage _unpackageOrderCmd0x01 = new ModBusTCPUnPackage();
SlaveReplyDataBase _slaveReplyData = null;
UnPackageError _unpackageError = _unpackageOrderCmd0x01.BuilderObjFromBytes(_orderCmd0x01, out _slaveReplyData);
Assert.AreEqual(_slaveReplyData.OrderCmdCode, 0x01);
}
public void BuilderObjFromBytesTest()
{
byte[] _orderCmd0x01 = { 0x02, 0x01, 0x02, 0x1F, 0x00, 0xF5, 0xCC };
ModBusRTUUnPackage _unpackageOrderCmd0x01 = new ModBusRTUUnPackage();
SlaveReplyDataBase _slaveReplyData = null;
UnPackageError _unpackageError = _unpackageOrderCmd0x01.BuilderObjFromBytes(_orderCmd0x01, out _slaveReplyData);
Assert.AreEqual(_slaveReplyData.OrderCmdCode, 0x01);
byte[] _orderCmd0x03 = { 002, 0x03, 0x14, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x37, 0x57 };
ModBusRTUUnPackage _unpackageOrderCmd0x03 = new ModBusRTUUnPackage();
_slaveReplyData = null;
_unpackageError = _unpackageOrderCmd0x03.BuilderObjFromBytes(_orderCmd0x03, out _slaveReplyData);
Assert.AreEqual(_slaveReplyData.OrderCmdCode, 0x03);
}
private bool AnalyzePackageData(byte[] data, out UnPackageError unPackageError)
{
bool _result = false;
try
{
FullPackageData = ByteHelper.ToHexStringWithBlank(data);
TransactionIdentifier = ArrayHelper.Copy(data, 0, 2); //事物标识符
ProtocolIdentifier = ArrayHelper.Copy(data, 2, 4); //协议标识符
Length = ArrayHelper.Copy(data, 4, 6); //长度
SlaveID = data[6]; //从设备地址
OrderCmd = data[7]; //功能码
unPackageError = UnPackageError.Normal;
if (data.Length == 9)
{
byte _errorCode = data[8];//错误代码
if (_errorCode == 0x01 || _errorCode == 0x02 || _errorCode == 0x03 || _errorCode == 0x04)
{
unPackageError = (UnPackageError)_errorCode;
}
}
else
{
//00 77 00 00 00 05 02 01 02 1F 00--Read Coils
//00 74 --事物标识符
//00 00 --协议标识符
//00 05 --长度
//02--从机地址
//01--功能码
//02 --数据长度
//1F 00--数据
DataLength = data[8]; //数据长度
Data = ArrayHelper.Copy(data, 9, 9 + DataLength); //实际数据
_result = true;
}
}
catch (Exception ex)
{
throw CreateUnPackageException("AnalyzePackageData", ex, data);
}
return(_result);
}
/// <summary>
/// 拆包
/// </summary>
/// <param name="data">数据报文</param>
/// <returns>返回结果;1.是否拆包成功；2.拆包成功后对象</returns>
public UnPackageError BuilderObjFromBytes(byte[] data, out SlaveReplyDataBase slaveReplyData)
{
slaveReplyData = null;
UnPackageError _unpackageError = UnPackageError.Normal;
try
{
bool _analyzeResult = AnalyzePackageData(data, out _unpackageError);
if (_unpackageError == UnPackageError.Normal)
{
_unpackageError = CheckedPackageData(data, out slaveReplyData);
}
return(_unpackageError);
}
catch (UnPackageException)
{
_unpackageError = UnPackageError.ExceptionError;
}
return(_unpackageError);
}
private bool AnalyzePackageData(byte[] data, out UnPackageError unPackageError)
{
bool _result = false;
try
{
FullPackageData = ByteHelper.ToHexStringWithBlank(data);
SlaveID = data[0]; //从设备地址
OrderCmd = data[1]; //功能码
unPackageError = UnPackageError.Normal;
if (data.Length == 5)
{
byte _errorCode = data[2];//错误代码
if (_errorCode == 0x01 || _errorCode == 0x02 || _errorCode == 0x03 || _errorCode == 0x04)
{
unPackageError = (UnPackageError)_errorCode;
}
}
else
{
//02 01 02 1F 00 F5 CC --Read Coils
//02--从机地址
//01--功能码
//02--数据长度
//1F 00--数据
//F5 CC--CRC
//02 02 02 1F 00 F5 88 --Read Discrete Inputs
//02--从机地址
//02--功能码
//02--数据长度
//1F 00--数据
//F8 88--CRC
//02 03 14 00 01 00 02 00 03 00 04 00 05 00 00 00 00 00 00 00 00 00 00 37 57
//02--从机地址
//03--功能码
//14--数据长度
//00 01 00 02 00 03 00 04 00 05 00 00 00 00 00 00 00 00 00 00--数据
//37 57--CRC
//02 04 14 00 01 00 02 00 03 00 04 00 05 00 00 00 00 00 00 00 00 00 00 01 B1
//02--从机地址
//04--功能码
//14--数据长度
//00 01 00 02 00 03 00 04 00 05 00 00 00 00 00 00 00 00 00 00--数据
//01 B1--CRC
int _packageLength = data.Length;
DataLength = data[2]; //数据长度
CrcCaluData = ArrayHelper.Copy(data, 0, _packageLength - 2);
Data = ArrayHelper.Copy(data, 3, 3 + DataLength); //实际数据
CRC = ArrayHelper.Copy(data, _packageLength - 2, _packageLength);
_result = true;
}
}
catch (Exception ex)
{
throw CreateUnPackageException("AnalyzePackageData", ex, data);
}
return(_result);
}
