Question

需要CAS CL5200规模的帮助。我已经看过关于这个问题的所有帖子，但没有一个是关于CAS CL5200与USB电缆连接的缩放连接创建一个虚拟COM端口（COM41）

这是我遵循的步骤 -

为了测试通信，我安装了CL-Works（为某些功能扩展软件） - ＆gt;工作
安装了免费设备监控工作室以查看所有连接参数。
用超级终端测试 - ＆gt;
免费设备监控Studio报告“W”写入com端口但没有任何返回。
这里的代码是我在其他相关文章中找到的，用byte []和字符串测试它，无论是代码写在COM41“W”上，但没有什么可读的。

代码：

public partial class Form1 : Form
{
    private const int BaudRate = 19200; // BaudRate Constant

    private SerialPort _serialPort;

    private void button1_Click_1(object sender, EventArgs e)
    {
        if (_serialPort != null && _serialPort.IsOpen)
            _serialPort.Close();
        if (_serialPort != null)
            _serialPort.Dispose();

        _serialPort = new SerialPort("COM41", BaudRate, Parity.None, 8, StopBits.One); // Creates new SerialPort using the name selected in the combobox
        _serialPort.Handshake = Handshake.None;
        // _serialPort.DataReceived += SerialPortOnDataReceived; // this event happens everytime when new data is received by the ComPort
        _serialPort.DataReceived += new SerialDataReceivedEventHandler(_serialPort_DataReceived);
        _serialPort.RtsEnable = true;
        _serialPort.DtrEnable = true;
        _serialPort.Open();

        textBox1.Text = "Listening on " + _serialPort.PortName + "...\r\n";

       // byte[] towrite = GetBytes("W"); // get the weight from scale wiyh "W" as byte[]
       // _serialPort.Write(towrite,0,1);
        _serialPort.WriteLine("W");
    }

    private delegate void Closure();
    void _serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
    {
        if (InvokeRequired) // makes sure the function is invoked to work properly in the UI-Thread
            BeginInvoke(new Closure(() => { _serialPort_DataReceived(sender, e); })); //<-- Function invokes itself
        else
            while (_serialPort.BytesToRead > 0) //<-- repeats until the In-Buffer is empty
            {
                //textBox1.Text += string.Format("{0:X2} ", _serialPort.ReadByte());
                textBox1.Text += _serialPort.ReadExisting();
                //<-- bytewise adds inbuffer to textbox
            }
    }

    private byte[] GetBytes(string str)
    {
        byte[] bytes = new byte[str.Length * sizeof(char)];
        Buffer.BlockCopy(str.ToCharArray(), 0, bytes, 0, bytes.Length);
        return bytes;
    }
}

从称重秤CAS CL5200接收数据

0 个答案: