/// <summary>
/// 注意、通信管道改变后 ，应该去注意通信报文是否需要做处理！！
/// </summary>
/// <param name="b"></param>
public void ChangeChannel(BaseChannel b)
{
_Chan.Close();
if (IsRun)
{
Stop();
Thread.Sleep(50);
_Chan = b;
Run();
return;
}
_Chan = b;
}
