NModbus4练手

pdaxing / 2023-08-16 / 原文

using Modbus.Device;
using Modbus.Extensions.Enron;
using System;
using System.Collections.Generic;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp21
{
    internal class Program
    {
        static void Main(string[] args)//添加NModbus4库后设置相关参数
        {
            //确定通讯方式
            SerialPort serialPort = new SerialPort("COM1");// 实例化并选择COM1端口
            serialPort.BaudRate = 9600;//设置波特率 
            serialPort.DataBits = 8;//数据位
            serialPort.Parity = Parity.None;//偶校验
            serialPort.StopBits = StopBits.One;//停止位 
            serialPort.Open();//打开端口
            
            //发送通讯结果
            var master = ModbusSerialMaster.CreateRtu(serialPort);
            ushort[] values = master.ReadHoldingRegisters(1, 10, 4);//从站1，地址10，数量4

            //将接收到的结果输出屏幕
                Console.WriteLine(values[0] + " " + values[1] + " " + values[2] + " " + values[3]);    
            //写入传递数据
            Console.WriteLine( "正在写入  数值到10寄存器" );
                
           
            master.WriteSingleRegister(1, 20, 12345);//将从站地址1 末位的数值666写入（中间）第20-29个寄存器
            master.WriteSingleRegister(1, 21, 12345);
            master.WriteSingleRegister(1, 22, 12456);
            master.WriteSingleRegister(1, 23, 12345);
            master.WriteSingleRegister(1, 24, 12456);
            master.WriteSingleRegister(1, 25, 12345);
            master.WriteSingleRegister(1, 26, 12456);
            master.WriteSingleRegister(1, 27, 12456);
            master.WriteSingleRegister(1, 28, 12345);
            master.WriteSingleRegister(1, 29, 12456);

            Console.WriteLine(  "写入完成");
            Console.WriteLine("读取线圈状态");
            bool[] coilValues = master.ReadCoils(1,0,2);//设置从站地址1，起止地址0，读取数2
            Console.WriteLine(coilValues[0] + " " + coilValues[1]);

            Console.WriteLine("写入一个线圈状态true到寄存器3");
            master.WriteSingleCoil(1, 3, true);//写入从站地址1，地址3，状态true
            Console.ReadKey();
 
        }

    }
}