VISA + C# + RS485 + carriage return

Hi, everybody!
I have an engine and I want to control it by means of rs485.

 wData = new SerialSession("COM7");
 wData.BaudRate = 9600;
 wData.TerminationCharacterEnabled = true;
 String Command = "AV10000"+"\r";
 byte[] bytes = new byte[8];
 int bWritten = ASCIIEncoding.ASCII.GetBytes(Command, 0,      Command.Length, bytes, 0);
 wData.Write(bytes);
 wData.Clear();

 through visa and c# there is no response

 Problem is "#0D" but I send it through "\r"

Through the terminal program everything works