/// <summary>
/// 检查当前的Modbus-Rtu响应是否是正确的
/// </summary>
/// <param name="send">发送的数据信息</param>
/// <returns>带是否成功的结果数据</returns>
protected virtual OperateResult <byte[]> CheckModbusTcpResponse(byte[] send)
{
// 核心交互
OperateResult <byte[]> result = ReadBase(send);
if (!result.IsSuccess)
{
return(result);
}
// 长度校验
if (result.Content.Length < 5)
{
return(new OperateResult <byte[]>(StringResources.Language.ReceiveDataLengthTooShort + "5"));
}
// 检查crc
if (!SoftCRC16.CheckCRC16(result.Content))
{
return(new OperateResult <byte[]>(StringResources.Language.ModbusCRCCheckFailed));
}
// 发生了错误
if ((send[1] + 0x80) == result.Content[1])
{
return(new OperateResult <byte[]>(result.Content[2], ModbusInfo.GetDescriptionByErrorCode(result.Content[2])));
}
// 移除CRC校验
byte[] buffer = new byte[result.Content.Length - 2];
Array.Copy(result.Content, 0, buffer, 0, buffer.Length);
return(OperateResult.CreateSuccessResult(buffer));
}
/// <summary>
/// 重写的数据接收方法，需要连续接收，直到CRC校验成功或是超时，接收时间会比较久
/// </summary>
/// <param name="sender">串口对象</param>
/// <param name="e">串口的数据对象</param>
protected override void SP_ReadData_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
while (true)
{
Thread.Sleep(40);
try
{
if (SP_ReadData.BytesToRead < 1)
{
continue;
}
// 继续接收数据
receiveCount += SP_ReadData.Read(buffer, receiveCount, SP_ReadData.BytesToRead);
// CRC校验成功及退出
byte[] data = new byte[receiveCount];
Array.Copy(buffer, 0, data, 0, receiveCount);
if (SoftCRC16.CheckCRC16(data))
{
break;
}
}
catch (Exception ex)
{
isComError = true;
ComErrorMsg = ex.Message;
break;
}
}
resetEvent.Set( );
}
/// <summary>
/// 检查当前的Modbus-Tcp响应是否是正确的
/// </summary>
/// <param name="send">发送的数据信息</param>
/// <returns>带是否成功的结果数据</returns>
private OperateResult <byte[]> CheckModbusTcpResponse(byte[] send)
{
OperateResult <byte[]> result = ReadBase(send);
if (!result.IsSuccess)
{
return(result);
}
if (result.Content.Length < 5)
{
return(new OperateResult <byte[]>( )
{
IsSuccess = false,
Message = "接收数据长度不能小于5",
});
}
if (!SoftCRC16.CheckCRC16(result.Content))
{
return(new OperateResult <byte[]>( )
{
IsSuccess = false,
Message = "CRC校验失败",
});
}
if ((send[1] + 0x80) == result.Content[1])
{
// 发生了错误
return(new OperateResult <byte[]>( )
{
IsSuccess = false,
Message = ModbusInfo.GetDescriptionByErrorCode(result.Content[2]),
ErrorCode = result.Content[2],
});
}
else
{
// 移除CRC校验
byte[] buffer = new byte[result.Content.Length - 2];
Array.Copy(result.Content, 0, buffer, 0, buffer.Length);
return(OperateResult.CreateSuccessResult(buffer));
}
}
/// <summary>
/// 检查当前的Modbus-Rtu响应是否是正确的
/// </summary>
/// <param name="send">发送的数据信息</param>
/// <returns>带是否成功的结果数据</returns>
protected virtual OperateResult <byte[]> CheckModbusTcpResponse(byte[] send)
{
// 核心交互
OperateResult <byte[]> result = ReadBase(send);
if (!result.IsSuccess)
{
return(result);
}
// 长度校验
if (result.Content.Length < 5)
{
return new OperateResult <byte[]>( )
{
IsSuccess = false, Message = "接收数据长度不能小于5"
}
}
;
// 检查crc
if (!SoftCRC16.CheckCRC16(result.Content))
{
return new OperateResult <byte[]>( )
{
Message = "CRC校验失败"
}
}
;
// 发生了错误
if ((send[1] + 0x80) == result.Content[1])
{
return new OperateResult <byte[]>( )
{
ErrorCode = result.Content[2], Message = ModbusInfo.GetDescriptionByErrorCode(result.Content[2])
}
}
;
// 移除CRC校验
byte[] buffer = new byte[result.Content.Length - 2];
Array.Copy(result.Content, 0, buffer, 0, buffer.Length);
return(OperateResult.CreateSuccessResult(buffer));
}
/// <summary>
/// 检查当前接收的字节数据是否正确的
/// </summary>
/// <param name="rBytes"></param>
/// <returns></returns>
protected override bool CheckReceiveBytes(byte[] rBytes)
{
return(SoftCRC16.CheckCRC16(rBytes));
}