最新天堂中文在线丨午夜嘿嘿嘿影院丨亚洲国产精品高清久久久丨中文字幕人成乱码熟女app丨www91亚洲丨97成人资源丨成人中文字幕+乱码+中文字幕丨一区二区三区在线 | 日丨日韩免费大片丨亚洲欧美一区二区三区丨国产在线观看a丨亚洲成人第一区丨国内免费视频成人精品丨亚洲综合色网站丨午夜精品美女久久久久av福利丨国产午夜人做人免费视频网站丨国产又黄视频丨97se狼狼狼狼狼亚洲网丨狠狠亚洲婷婷综合色香五月丨中国一级毛片黄丨国产女人十八毛片丨国产色视频在线播放丨国产亚洲精久久久久久无码苍井空丨天天摸日日摸爽爽狠狠丨久久综合香蕉国产蜜臀av

簡單寫了個c#連接西門子PLC的小程序來練習，源代碼放在下面，可以看看


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using S7.Net;

namespace 西門子連接上位機
{
    public partial class Form1 : Form
    {
        public Plc Myplc;
        public string IP = "192.168.1.118";//PLC的IP地址
        public void Connect()//創建連接PLC方法
        {
            try
            {
                Myplc = new Plc(CpuType.S71500, IP, 0, 1);//實例化PLC對象
            }
            catch { MessageBox.Show("連接失��！"); }
        }
        public Form1()
        {
            InitializeComponent();
            Connect();//調用連接PLC方法
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if(Myplc==null)
            {
                MessageBox.Show("連接失��！");
                return;
            }
            try
            {
                Myplc.Open();//打開PLC連接
                button1.BackColor = Color.Lime;//改變按鈕1顏色為綠色
                button2.BackColor = Color.White;//改變按鈕2顏色為白色
                button1.Text = "已連接PLC";//改變按鈕1文字為已連接PLC
                label1.Text = "已連接到PLC";//改變label1文字為已連接到PLC
                label1.Visible = true;//顯示label1
                
            }
            catch { MessageBox.Show("連接失�。�"); }//捕獲異常
            
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (Myplc == null)
            {
                MessageBox.Show("連接失敗！");//判斷PLC是否連接成功
                return;
            }
            try
            {
                Myplc.Close();//關閉PLC連接
                button2.BackColor = Color.Lime;//改變按鈕2顏色為綠色
                button1.BackColor = Color.White;//改變按鈕1顏色為白色
                button2.Text = "已斷開PLC";//改變按鈕2文字為已斷開PLC
                label1.Visible = false;//隱藏label1
            }
            catch { MessageBox.Show("斷開失敗！"); }//捕獲異常
            
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (Myplc == null)
            {
                MessageBox.Show("連接失�。�");//判斷PLC是否連接成功
                return;
            }
            try
            {
                if ((bool)Myplc.Read("DB1.DBX0.0") == false)//判斷讀取的BOOL變量對按鈕進行取反操作
                {
                    Myplc.Write("DB1.DBX0.0", 1);//寫入BOOL變量
                    button3.BackColor = Color.Lime;//改變按鈕3顏色為綠色
                }
                else if ((bool)Myplc.Read("DB1.DBX0.0") == true)
                {
                    Myplc.Write("DB1.DBX0.0", 0);//寫入BOOL變量
                    button3.BackColor = Color.White;//改變按鈕3顏色為白色
                }
                else { MessageBox.Show("讀取或寫入失敗！"); }//捕獲異常
            }
            catch { MessageBox.Show("讀取或寫入失�。�"); }//捕獲異常
            
            
        }
    }
}

贊