基本信息

---

下载

   友情提示：（无需注册或充值，赞助后即可获取资源下载链接）

---

     嘿，亲！知识可是无价之宝呢，但咱这精心整理的资料也耗费了不少心血呀。小小地破费一下，绝对物超所值哦！如有下载和支付问题，请联系我们QQ(微信同号)：78630559

本次赞助数额为： 2 元　

支付宝支付

微信支付

   源码介绍

---

c#实现开关量输入

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        string data;
        SolidBrush bush1 = new SolidBrush(Color.Red);
        SolidBrush bush2 = new SolidBrush(Color.Green);
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            serialPort1.Close();
            Close();

        }
       
        private void Form1_Load(object sender, EventArgs e)
        {
            serialPort1.PortName = "COM1";
            serialPort1.BaudRate = 9600;
            serialPort1.DataBits = 7;
            serialPort1.Open();
        }
       
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (serialPort1.IsOpen) serialPort1.Close();
        }
        

        private void timer1_Tick(object sender, EventArgs e)
        {

            Graphics g1 = this.pictureBox1.CreateGraphics();
            Graphics g2 = this.pictureBox2.CreateGraphics();
            Graphics g3 = this.pictureBox3.CreateGraphics();
            Graphics g4 = this.pictureBox4.CreateGraphics();
            Graphics g5 = this.pictureBox5.CreateGraphics();
            Graphics g6 = this.pictureBox6.CreateGraphics();
            Graphics g7= this.pictureBox7.CreateGraphics();
            Graphics g8= this.pictureBox8.CreateGraphics();
            Graphics g9 = this.pictureBox9.CreateGraphics();
            Graphics g10 = this.pictureBox10.CreateGraphics();
            Graphics g11 = this.pictureBox11.CreateGraphics();
            Graphics g12 = this.pictureBox12.CreateGraphics();
            Graphics g13 = this.pictureBox13.CreateGraphics();
            Graphics g14 = this.pictureBox14.CreateGraphics();
            Graphics g15= this.pictureBox15.CreateGraphics();
            Graphics g16 = this.pictureBox16.CreateGraphics();
           
            data = serialPort1.ReadExisting();
            int b = data.Length;
            if (b == 68)
            {
                
           
            if (data.Substring(2, 1) == "1")
                g1.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g1.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(6, 1) == "1")
                g2.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g2.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(10, 1) == "1")
                g3.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g3.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(14, 1) == "1")
                g4.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g4.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(18, 1) == "1")
                g5.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g5.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(22, 1) == "1")
                g6.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g6.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(26, 1) == "1")
                g7.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g7.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(30, 1) == "1")
                g8.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g8.FillEllipse(bush2, 0, 0, 20, 20);

            if (data.Substring(34, 1) == "1")
                g9.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g9.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(38, 1) == "1")
                g10.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g10.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(42, 1) == "1")
                g11.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g11.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(46, 1) == "1")
                g12.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g12.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(50, 1) == "1")
                g13.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g13.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(54, 1) == "1")
                g14.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g14.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(58, 1) == "1")
                g15.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g15.FillEllipse(bush2, 0, 0, 20, 20);
            if (data.Substring(62, 1) == "1")
                g16.FillEllipse(bush1, 0, 0, 20, 20);
            else
                g16.FillEllipse(bush2, 0, 0, 20, 20);

             }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            //向PLC发送指令：02 30 31 30 30 30 32 30 03 35 36，功能是从D0开始读取32个字节数据
            char[] c = { (char)2, (char)48, (char)49, (char)48, (char)48, (char)48, (char)50, (char)48, (char)3, (char)53, (char)54 };
            int i = 0;
            string s = "";
             while (i<11)
             {
                 s=s c[i].ToString ();
                 i  ;
             }
            serialPort1 .Write (s);
            timer1.Enabled = true;
                   }

        
      
        
    }
}