Winform窗体控件双向绑定数据模拟读写PLC数据

1.用Modbus工具模拟PLC

2.创建一个实体类

点击查看代码

internal class Data : INotifyPropertyChanged
{ushort[] ushorts = new ushort[10];public ushort D0 { get => ushorts[0]; set { ushorts[0] = value; OnPropertyChanged(nameof(D0)); } }public ushort D1 { get => ushorts[1]; set { ushorts[1] = value; } }public ushort D2 { get => ushorts[2]; set { ushorts[2] = value; } }public ushort D3 { get => ushorts[3]; set { ushorts[3] = value; } }public ushort D4 { get => ushorts[4]; set { ushorts[4] = value; } }public ushort D5 { get => ushorts[5]; set { ushorts[5] = value; } }public ushort D6 { get => ushorts[6]; set { ushorts[6] = value; } }public ushort D7 { get => ushorts[7]; set { ushorts[7] = value; } }public ushort D8 { get => ushorts[8]; set { ushorts[8] = value; } }public ushort D9 { get => ushorts[9]; set { ushorts[9] = value; } }public event PropertyChangedEventHandler PropertyChanged;protected virtual void OnPropertyChanged(string propertyName){if (PropertyChanged != null){PropertyChanged(this, new PropertyChangedEventArgs(propertyName));}}
}

3.创建窗体，添加10个TextBox控件用于显示和设置plc端数据

4.把数据绑定控件，利用定时器事件读取和写入PLC数据。

点击查看代码

        Data DB = new Data();ModbusTcp ModbusTcp = new ModbusTcp();private void Form1_Load(object sender, EventArgs e){try{textBox1.DataBindings.Add("Text", DB, "D0");textBox2.DataBindings.Add("Text", DB, "D1");textBox3.DataBindings.Add("Text", DB, "D2");textBox4.DataBindings.Add("Text", DB, "D3");textBox5.DataBindings.Add("Text", DB, "D4");textBox6.DataBindings.Add("Text", DB, "D5");textBox7.DataBindings.Add("Text", DB, "D6");textBox8.DataBindings.Add("Text", DB, "D7");textBox9.DataBindings.Add("Text", DB, "D8");textBox10.DataBindings.Add("Text", DB, "D9");ModbusTcp.ModbusTcpConnect("127.0.0.1", 502);}catch (Exception ex){MessageBox.Show(ex.ToString());}}private void timer1_Tick(object sender, EventArgs e){ushort[] ushorts = {DB.D0,DB.D1,DB.D2,DB.D3,DB.D4,DB.D5,DB.D6,DB.D7,DB.D8,DB.D9};ModbusTcp.WriteMultipleRegisters(1, 0, ushorts);ushorts = ModbusTcp.ReadHoldingRegisters(1, 0, 10);}