基于C#实现ModbusTCP服务器接口的方法

//ModbusTcpSlave对象
private ModbusTcpSlave modbusTcpSlave = null;
//TcpListener对象
private TcpListener tcpListener;
public void StartServer(string ip, int port)
{
    tcpListener = new TcpListener(IPAddress.Parse(ip), port);
    modbusTcpSlave = ModbusTcpSlave.CreateTcp(1, tcpListener);
    modbusTcpSlave.Listen();
}

 public void StopServer()
 {
     modbusTcpSlave?.Dispose();
 }

public void SetHoldingRegisterFloatValue(int offset, float value)
{
    byte[] buffer = BitConverter.GetBytes(value);
    ushort highValue = BitConverter.ToUInt16(buffer, 0);
    ushort lowValue = BitConverter.ToUInt16(buffer, 2);
    //获取保持型寄存器存储区
    ModbusDataCollection<ushort> data = modbusTcpSlave.DataStore.HoldingRegisters;
    data[offset] = lowValue;
    data[offset + 1] = highValue;
}
public void SetHoldingRegisteUShortValue(int offset, ushort value)
{
    //获取保持型寄存器存储区
    ModbusDataCollection<ushort> data = modbusTcpSlave.DataStore.HoldingRegisters;
    data[offset] = value;
}

public event Action<object, ModbusSlaveRequestEventArgs> ModbusSlaveRequestReceived;
private void ModbusTcpSlave_ModbusSlaveRequestReceived(object sender, ModbusSlaveRequestEventArgs e)
{
    ModbusSlaveRequestReceived?.Invoke(sender,e);
}
public event Action<object, ModbusSlaveRequestEventArgs> ModbusSlaveWriteComplete; 
private void ModbusTcpSlave_WriteComplete(object sender, ModbusSlaveRequestEventArgs e)
{
    ModbusSlaveWriteComplete?.Invoke(sender, e);
}

private ModbusTCPServer modbusTCPServer = new ModbusTCPServer();
private void btn_Start_Click(object sender, EventArgs e)
{
    if (this.btn_Start.Text == "开启服务")
    {
        try
        {
            int port = Convert.ToInt32(this.txt_Port.Text);
            modbusTCPServer.StartServer(this.txt_IP.Text, port);
            AddLog("开启服务成功");
            this.btn_Start.Text = "关闭服务";
        }
        catch (Exception ex)
        {
            AddLog("开启服务失败：" + ex.Message);
        }
    }
    else
    {
        modbusTCPServer.StopServer();
        this.btn_Start.Text = "开启服务";
    }
}

 private void btn_WriteFloat_Click(object sender, EventArgs e)
 {
     int address = Convert.ToInt32(this.txt_Address.Text);
     float value = Convert.ToSingle(this.txt_Value.Text);
     modbusTCPServer.SetHoldingRegisterFloatValue(address, value);
     AddLog("写入地址：" + address + "  浮点数：" + value);
 }
 private void btn_WriteUShort_Click(object sender, EventArgs e)
 {
     int address = Convert.ToInt32(this.txt_Address.Text);
     ushort value = Convert.ToUInt16(this.txt_Value.Text);
     modbusTCPServer.SetHoldingRegisteUShortValue(address, value);
     AddLog("写入地址：" + address + "  整数：" + value);
 }