private void but_sendData_Click(object sender, EventArgs e)
{
try
{
if (string.IsNullOrWhiteSpace(txt_dataPackage.Text))
{
MessageBox.Show("请输入要发送的报文");
return;
}
var dataPackageString = txt_dataPackage.Text.Replace(" ", "");
if (dataPackageString.Length % 2 != 0)
{
MessageBox.Show("请输入正确的的报文");
return;
}
var dataPackage = DataConvert.StringToByteArray(txt_dataPackage.Text?.Trim(), false);
var msg = client.SendPackage(dataPackage);
AppendText($"[请求报文]{string.Join(" ", dataPackage.Select(t => t.ToString("X2")))}\r");
AppendText($"[响应报文]{string.Join(" ", msg.Select(t => t.ToString("X2")))}\r\n");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
client.Close();
client.Open();
}
}
/// <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($"连接失败：{result.Err}");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
static bool OpenPort(ModbusRtuClient client)
{
try
{
client.Open();
}
catch (Exception exp) when(
exp is UnauthorizedAccessException ||
exp is InvalidOperationException ||
exp is IOException)
{
Console.Error.WriteLine("Unable to open port.");
return(false);
}
return(true);
}
public async Task 长连接主动开关()
{
client.Open();
short Number = 33;
client.Write("4", Number, stationNumber);
Assert.True(client.ReadInt16("4", stationNumber).Value == Number);
Number = 34;
client.Write("4", Number, stationNumber);
Assert.True(client.ReadInt16("4", stationNumber).Value == Number);
Number = 1;
client.Write("12", Number, stationNumber);
Assert.True(client.ReadInt16("12", stationNumber).Value == 1);
Number = 0;
client.Write("12", Number, stationNumber);
Assert.True(client.ReadInt16("12", stationNumber).Value == 0);
int numberInt32 = -12;
client.Write("4", numberInt32, stationNumber);
Assert.True(client.ReadInt32("4", stationNumber).Value == numberInt32);
float numberFloat = 112;
client.Write("4", numberFloat, stationNumber);
Assert.True(client.ReadFloat("4", stationNumber).Value == numberFloat);
double numberDouble = 32;
client.Write("4", numberDouble, stationNumber);
Assert.True(client.ReadDouble("4", stationNumber).Value == numberDouble);
client.Close();
}
static int RunDetectPorts(DetectPortsOptions opts)
{
var validPorts = new List <PortDescription>();
using (var client = new ModbusRtuClient())
{
client.BaudRate = opts.BaudRate;
client.DataBits = opts.DataBits;
client.Parity = opts.Parity;
foreach (var portDesc in SerialPortStream.GetPortDescriptions())
{
client.PortName = portDesc.Port;
if (opts.Verbose)
{
Console.Error.Write($"Trying {portDesc.Port}");
if (!string.IsNullOrEmpty(portDesc.Description))
{
Console.Out.Write($" ({portDesc.Description})");
}
Console.Out.Write("...");
}
try
{
client.Open();
}
catch (Exception exp) when(exp is UnauthorizedAccessException || exp is InvalidOperationException)
{
if (opts.Verbose)
{
Console.Error.WriteLine("already in use.");
}
continue;
}
catch (IOException)
{
if (opts.Verbose)
{
Console.Error.WriteLine("cannot open.");
}
continue;
}
try
{
client.ReadHoldingRegisters(opts.UnitAddress, 0, 1);
}
catch (TimeoutException)
{
if (opts.Verbose)
{
Console.Error.WriteLine("timeout.");
}
client.Close();
continue;
}
catch (FormatException)
{
if (opts.Verbose)
{
Console.Error.WriteLine("frame error.");
}
client.Close();
continue;
}
catch (ModbusException)
{
}
if (opts.Verbose)
{
Console.Error.WriteLine("valid.");
}
validPorts.Add(portDesc);
client.Close();
}
}
if (opts.Verbose)
{
Console.Error.WriteLine();
}
foreach (var portDesc in validPorts)
{
Console.Out.Write($"{portDesc.Port}");
if (!string.IsNullOrEmpty(portDesc.Description))
{
Console.Out.Write($" ({portDesc.Description})");
}
Console.Out.WriteLine();
}
return(0);
}