如何使用客户端程序通过以太网从秤中读取数据

Question

我必须通过以太网将 Avery ZM510 秤连接到电脑。基本上，当用户按下打印按钮时，它应该听取数据的比例。供应商说秤已经配置为服务器并给了一个IP，说不需要端口号。

我尝试了以下客户端程序，但没有成功。 Avery 手册也不包含有关 API.

的任何信息

     using System;  
     using System.Net;  
     using System.Net.Sockets;  
     using System.Text;  
  

   public class SocketClient  
    {  
    public static int Main(String[] args)  
    {  
        StartClient();  
        return 0;  
    }  
  
  
    public static void StartClient()  
    {  
        byte[] bytes = new byte[1024];  
  
        try  
        {  
         
            IPHostEntry host = Dns.GetHostEntry("localhost");  
            IPAddress ipAddress = host.AddressList[0];  
            IPEndPoint remoteEP = new IPEndPoint(ipAddress, "");  
  
          
            Socket sender = new Socket(ipAddress.AddressFamily,  
                SocketType.Stream, ProtocolType.Tcp);  
  
            // Connect the socket to the remote endpoint. Catch any errors.    
            try  
            {  
                // Connect to Remote EndPoint  
                sender.Connect(remoteEP);  
  
                Console.WriteLine("Socket connected to {0}",  
                    sender.RemoteEndPoint.ToString());  
  
                // Encode the data string into a byte array.    
                byte[] msg = Encoding.ASCII.GetBytes("This is a test<EOF>");  
  
                // Send the data through the socket.    
                int bytesSent = sender.Send(msg);  
  
              
                int bytesRec = sender.Receive(bytes);  
                Console.WriteLine("Echoed test = {0}",  
                    Encoding.ASCII.GetString(bytes, 0, bytesRec));  
  
                // Release the socket.    
                sender.Shutdown(SocketShutdown.Both);  
                sender.Close();  
  
            }  
            catch (ArgumentNullException ane)  
            {  
                Console.WriteLine("ArgumentNullException : {0}", ane.ToString());  
            }  
            catch (SocketException se)  
            {  
                Console.WriteLine("SocketException : {0}", se.ToString());  
            }  
            catch (Exception e)  
            {  
                Console.WriteLine("Unexpected exception : {0}", e.ToString());  
            }  
  
        }  
        catch (Exception e)  
        {  
            Console.WriteLine(e.ToString());  
        }  
    }  
}

Answer 1

配置 Scale IP 和端口，任何简单的客户端程序都可以工作。

 public partial class Form1 : Form
{
    System.Net.Sockets.TcpClient clientSocket = new System.Net.Sockets.TcpClient();


    public Form1()
    {
        InitializeComponent();
    }



    private void Form1_Load(object sender, EventArgs e)

    {

        msg("Client Started");

        clientSocket.Connect("192.168.1.1", 8888); // Scale Ip and port

        label1.Text = "Client Socket Program - Server Connected ...";

    }

    private void button1_Click(object sender, EventArgs e)
    {
        NetworkStream serverStream = clientSocket.GetStream();

        byte[] outStream = System.Text.Encoding.ASCII.GetBytes(textBox2.Text + "$");

        serverStream.Write(outStream, 0, outStream.Length);

        serverStream.Flush();



        byte[] inStream = new byte[10025];

        serverStream.Read(inStream, 0, (int)clientSocket.ReceiveBufferSize);

        string returndata = System.Text.Encoding.ASCII.GetString(inStream);

        msg(returndata);

        textBox2.Text = "";

        textBox1.Focus();
    }

    public void msg(string mesg)

    {

        textBox1.Text = textBox1.Text + Environment.NewLine + " >> " + mesg;

    }

Answer 2

通常，AWTX ZM510 出售时，会配置一个静态 IP 以将打印字符串发送到 192.168.1.51 端口 1。（除非设置它的技术人员更改了这些值。）

通过在终端客户端（例如 PuttY）中打开端口来测试此套接字。 (telnet 192.168.1.51:1) 然后按打印按钮。

之后您可以用 C# 编写套接字应用程序

-- 我的工作是为Avery设备提供技术支持-ZM510是一款非常强大的设备。

如何使用客户端程序通过以太网从秤中读取数据

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