byte stationNumber = 2;//站号
public ModBusTcpClient_tests()
{
var ip = IPAddress.Parse("ip".GetConfig());
var port = int.Parse("port".GetConfig());
client = new ModBusTcpClient(new IPEndPoint(ip, port));
}
private void button2_Click(object sender, EventArgs e)
{
if (but_open.Text == "连接")
{
client?.Close();
client = new ModBusTcpClient(txt_ip.Text?.Trim(), int.Parse(txt_port.Text?.Trim()));
if (client.Open())
{
but_open.Text = "已连接";
button3.Enabled = true;
button4.Enabled = true;
toolTip1.SetToolTip(but_open, "点击关闭连接");
}
else
{
MessageBox.Show("连接失败");
}
}
else
{
client?.Close();
but_open.Text = "连接";
toolTip1.SetToolTip(but_open, "点击打开连接");
}
}
private void but_open_Click(object sender, EventArgs e)
{
try
{
client?.Close();
client = new ModBusTcpClient(txt_ip.Text?.Trim(), int.Parse(txt_port.Text?.Trim()));
var result = client.Open();
if (result.IsSucceed)
{
but_read.Enabled = true;
but_write.Enabled = true;
but_open.Enabled = false;
but_close.Enabled = true;
but_sendData.Enabled = true;
AppendText($"连接成功");
}
else
{
MessageBox.Show($"连接失败：{result.Err}");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void button1_Click(object sender, EventArgs e)
{
// 连接
if (!System.Net.IPAddress.TryParse(textBox1.Text, out System.Net.IPAddress address))
{
MessageBox.Show("Ip地址输入不正确！");
return;
}
if (!int.TryParse(textBox2.Text, out int port))
{
MessageBox.Show("端口输入不正确！");
return;
}
if (!byte.TryParse(textBox15.Text, out byte station))
{
MessageBox.Show("站号输入不正确！");
return;
}
busTcpClient?.ConnectClose( );
busTcpClient = new ModBusTcpClient(textBox1.Text, port, station);
try
{
OperateResult connect = busTcpClient.ConnectServer( );
if (connect.IsSuccess)
{
MessageBox.Show("连接成功！");
button2.Enabled = true;
button1.Enabled = false;
panel2.Enabled = true;
}
else
{
MessageBox.Show("连接失败！");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void but_open_Click(object sender, EventArgs e)
{
client?.Close();
client = new ModBusTcpClient(txt_ip.Text?.Trim(), int.Parse(txt_port.Text?.Trim()));
if (client.Open())
{
button3.Enabled = true;
button4.Enabled = true;
but_open.Enabled = false;
button5.Enabled = true;
txt_content.AppendText($"[{DateTime.Now.ToLongTimeString()}]连接成功\r\n");
}
else
{
MessageBox.Show("连接失败");
}
}
private ModBusTcpClient client; // 与PLC通信的对象
private void FormSimenceModbusTcp_Load(object sender, EventArgs e)
{
client = new ModBusTcpClient("192.168.1.195");
action_update = new Action(ShowUpdate);
}