private void userButton2_Click(object sender, EventArgs e) { // 断开PLC client.ConnectClose( ); userButton1.Enabled = true; userButton2.Enabled = false; }
private void button2_Click(object sender, EventArgs e) { // 断开连接 busTcpClient.ConnectClose( ); button2.Enabled = false; button1.Enabled = true; panel2.Enabled = false; }
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); } }