On Aug 16, 8:29 am, Ryan <[email protected]> wrote:
> Hi All,
>
> Using C# and .NET 2.0 on WindowsXP SP3.
>
> I am trying to send a command to a device on a IP and Port and then
> get a response.
>
> I can successfully communicate with the device using Hyper terminal.
>
> I have created a text file with the command that I use <ESC>B<ENQ>
> then used the Send Text file option and I get the response that I
> expect back.
>
> When using the code below I simply get no response at all and it hangs
> on the stream.Read method call.
>
> Any ideas will be a appreciated.
> Thanks in advance.
>
> ----
> String cmd = Char.ConvertFromUtf32(5);
> cmd += Char.ConvertFromUtf32(66);
> cmd += Char.ConvertFromUtf32(27);
>
> TcpClient client = new TcpClient("192.168.5.80", 6001);
>
> Byte[] data = System.Text.Encoding.ASCII.GetBytes(cmd);
>
> NetworkStream stream = client.GetStream();
>
> // Send the message to the connected TcpServer.
> stream.Write(data, 0, data.Length);
>
> Console.WriteLine("Sent: {0}", cmd);
>
> // Buffer to store the response bytes.
> data = new Byte[100];
>
> // String to store the response ASCII representation.
> String responseData = String.Empty;
>
> // Read the first batch of the TcpServer response bytes.
> Int32 bytes = stream.Read(data, 0, data.Length);
>
> responseData = System.Text.Encoding.ASCII.GetString
> (data, 0, bytes);
> Console.WriteLine("Received: {0}", responseData);
>
> // Close everything.
> stream.Close();
> client.Close();
Got advice from another newsgroup.
Turns out i had the command reversed. Putting the right command in
fixed the problem.
Cheers,
R
