/// <summary>
/// 打开连接
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void but_open_Click(object sender, EventArgs e)
{
try
{
var PortName = cb_portNameSend.Text.ToString();
var BaudRate = int.Parse(txt_baudRate.Text.ToString());
var DataBits = int.Parse(txt_dataBit.Text.ToString());
var StopBits = (StopBits)int.Parse(txt_stopBit.Text.ToString());
client?.Close();
client = new ModBusRtuClient(PortName, BaudRate, DataBits, StopBits);
var result = client.Open();
if (result.IsSucceed)
{
but_open.Enabled = false;
cb_portNameSend.Enabled = false;
but_read.Enabled = true;
but_write.Enabled = true;
but_open.Enabled = false;
but_close.Enabled = true;
but_sendData.Enabled = true;
AppendText("连接成功");
}
else
{
AppendText($"连接失败：{result.Err}");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
/// <summary>
/// 自动扫描可连接串口属性
/// </summary>
/// <returns></returns>
private void AutoOpenRead()
{
#region 当前选择的配置有效匹配
FirstItem(ref BaudRateList, int.Parse(cb_baudRate.Text.ToString()));
FirstItem(ref DataBitList, int.Parse(txt_dataBit.Text.ToString()));
FirstItem(ref StopBitsList, (StopBits)int.Parse(txt_stopBit.Text.ToString()));
var firstParity = cb_parity.SelectedIndex == 0 ? Parity.None : (cb_parity.SelectedIndex == 1 ? Parity.Odd : Parity.Even);
FirstItem(ref ParityList, firstParity);
#endregion
byte.TryParse(txt_stationNumber.Text?.Trim(), out byte stationNumber);
if (!client.ReadInt16("0", stationNumber).IsSucceed)
{
foreach (var baudRate in BaudRateList)
{
foreach (var dataBit in DataBitList)
{
foreach (var stopBits in StopBitsList)
{
foreach (var parity in ParityList)
{
for (byte i = 0; i < 255; i++)
{
stationNumber = (byte)(i + 1);
if (but_open.Enabled)
{
return;
}
client?.Close();
client = new ModBusRtuClient(cb_portNameSend.Text.ToString(), baudRate, dataBit, stopBits, parity);
var result = client.Open();
if (result.IsSucceed)
{
if (client.ReadInt16("0", stationNumber).IsSucceed)
{
AppendText($@"连接【成功】 端口:{cb_portNameSend.Text.ToString()} 波特率:{baudRate} 数据位:{dataBit} 停止位:{stopBits} 奇偶:{parity} 站号:{stationNumber}");
return;
}
else
{
AppendText($@"连接失败 端口:{cb_portNameSend.Text.ToString()} 波特率:{baudRate} 数据位:{dataBit} 停止位:{stopBits} 奇偶:{parity} 站号:{stationNumber}");
}
}
else
{
AppendText($"连接异常 端口:{cb_portNameSend.Text.ToString()} 波特率:{baudRate} 数据位:{dataBit} 停止位:{stopBits} 奇偶:{parity} 站号:{stationNumber} Err:{result.Err}");
}
}
}
}
}
}
}
else
{
AppendText($@"连接【成功】 端口:{cb_portNameSend.Text} 波特率:{cb_baudRate.Text} 数据位:{txt_dataBit.Text} 停止位:{txt_stopBit.Text} 奇偶:{cb_parity.Text} 站号:{stationNumber}");
}
}
/// <summary>
/// 打开连接
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void but_open_Click(object sender, EventArgs e)
{
try
{
if (txt_content.Text.Contains("小技巧"))
{
txt_content.Text = string.Empty;
}
var PortName = cb_portNameSend.Text.ToString();
var BaudRate = int.Parse(cb_baudRate.Text.ToString());
var DataBits = int.Parse(txt_dataBit.Text.ToString());
var StopBits = (StopBits)int.Parse(txt_stopBit.Text.ToString());
var parity = cb_parity.SelectedIndex == 0 ? Parity.None : (cb_parity.SelectedIndex == 1 ? Parity.Odd : Parity.Even);
client?.Close();
client = new ModBusRtuClient(PortName, BaudRate, DataBits, StopBits, parity);
var result = client.Open();
if (result.IsSucceed)
{
but_open.Enabled = false;
cb_portNameSend.Enabled = false;
but_read.Enabled = true;
but_write.Enabled = true;
but_open.Enabled = false;
but_close.Enabled = true;
but_sendData.Enabled = true;
//按了Ctrl后的鼠标点击
if ((ModifierKeys & Keys.Control) == Keys.Control)
{
Task.Run(() =>
{
AutoOpenRead();
});
}
else
{
AppendText("连接成功");
}
}
else
{
AppendText($"连接失败：{result.Err}");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
byte stationNumber = 1;//站号
public ModBusRtuClient_tests()
{
client = new ModBusRtuClient("COM3", 9600, 8, StopBits.One, Parity.None);
}
/// <summary>
/// 更新串口名
/// </summary>
public void UpdatePortNames()
{
cb_portNameSend.DataSource = ModBusRtuClient.GetPortNames();
cb_portNameSend_server.DataSource = ModBusRtuClient.GetPortNames();
}
