System.ArgumentException
  HResult=0x80070057
  Message=数组不是一维数组。
  Source=mscorlib
  StackTrace:
   at System.Array.SetValue(Object value, Int32 index)
   at S7.Net.Types.Class.FromBytes(Object sourceClass, Byte[] bytes, Double numBytes, Boolean isInnerClass) in C:\projects\s7netplus-wq17l\S7.Net\Types\Class.cs:line 229
   at S7.Net.Plc.ReadClass(Object sourceClass, Int32 db, Int32 startByteAdr) in C:\projects\s7netplus-wq17l\S7.Net\PlcSynchronous.cs:line 134
   at System.Windows.Forms.Form.OnLoad(EventArgs e)
   at System.Windows.Forms.Form.OnCreateControl()
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WmShowWindow(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)