C# 中使用NModbus4通信库执行写操作

Install-Package NModbus4

using NModbus4;
using NModbus4.Serial;
using System;

public class ModbusFactory : IModbusFactory
{
    public IModbusFactory Configure(IModbusFactory factory)
    {
        factory.DefaultSlaveTimeout = TimeSpan.FromSeconds(5);
        factory.DefaultRetryCount = 5;
        return factory;
    }
}
public class ModbusMaster : IModbusMaster
{
    public IModbusMaster Configure(IModbusMaster master)
    {
        master.Transport = new ModbusSerialTransport(new SerialPortAdapter
        {
            PortName = "COM1", // 修改为您的串行端口
            BaudRate = 9600,
            DataBits = 8,
            Parity = Parity.None,
            StopBits = StopBits.One
        });
        return master;
    }
}

public void WriteSingleRegister(ushort slaveAddress, ushort address, ushort value)
{
    using (var master = ModbusFactory.CreateMaster(new ModbusMaster()))
    {
        try
        {
            master.Connect();
            master.WriteSingleRegister(slaveAddress, address, value);
            Console.WriteLine("写入成功");
        }
        catch (Exception ex)
        {
            Console.WriteLine($"写入失败：{ex.Message}");
        }
        finally
        {
            master.Disconnect();
        }
    }
}

class Program
{
    static void Main(string[] args)
    {
        WriteSingleRegister(1, 0x10, 0x0101); // 设备地址1，寄存器地址0x10，写入数据0x0101
        Console.ReadKey();
    }
    public static void WriteSingleRegister(ushort slaveAddress, ushort address, ushort value)
    {
        using (var master = ModbusFactory.CreateMaster(new ModbusMaster()))
        {
            try
            {
                master.Connect();
                master.WriteSingleRegister(slaveAddress, address, value);
                Console.WriteLine($"设备{slaveAddress}，寄存器{address}写入成功，值为{value:X4}");
            }
            catch (Exception ex)
            {
                Console.WriteLine($"设备{slaveAddress}，寄存器{address}写入失败：{ex.Message}");
            }
            finally
            {
                master.Disconnect();
            }
        }
    }
}