C#通过Kepserver 与PLC通信配置及C#实现读取实例教程

一般编程问题

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开发语言：Others
实例大小：4.01M
下载次数：155
浏览次数：5860
发布时间：2020-03-27
实例类别：一般编程问题
发布人：robot666
文件格式：.rar
所需积分：2

实例介绍

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【实例简介】

【实例截图】

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【文件目录】

│ (3条消息)C#通过KepServer采用DA、UA两种方式访问PLC - liwen9016的博客.png
│ C#_KEPWARE.rar
│ Kepserver_for_Siemens_S7-300_PLC - 副本.pdf
│
└─C#_KEPWARE
└─C#_KEPWARE
└─KEPWARE C# DEMO
│ sim.opf
│ WindowsFormsApplication2.rar
│
└─WindowsFormsApplication2
└─WindowsFormsApplication2
│ WindowsFormsApplication2.sln
│
└─WindowsFormsApplication2
│ Form1.cs
│ Form1.Designer.cs
│ Form1.resx
│ Program.cs
│ WindowsFormsApplication2.csproj
│
├─bin
│ └─Debug
│ WindowsFormsApplication2.exe
│ WindowsFormsApplication2.pdb
│ WindowsFormsApplication2.vshost.exe
│ WindowsFormsApplication2.vshost.exe.manifest
│
├─obj
│ └─x86
│ └─Debug
│ │ DesignTimeResolveAssemblyReferences.cache
│ │ DesignTimeResolveAssemblyReferencesInput.cache
│ │ Interop.OPCAutomation.dll
│ │ WindowsFormsApplication2.csproj.FileListAbsolute.txt
│ │ WindowsFormsApplication2.csproj.GenerateResource.Cache
│ │ WindowsFormsApplication2.csproj.ResolveComReference.cache
│ │ WindowsFormsApplication2.exe
│ │ WindowsFormsApplication2.Form1.resources
│ │ WindowsFormsApplication2.pdb
│ │ WindowsFormsApplication2.Properties.Resources.resources
│ │
│ └─TempPE
└─Properties
AssemblyInfo.cs
Resources.Designer.cs
Resources.resx
Settings.Designer.cs
Settings.settings

【核心代码】

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;
using System.Data.SqlClient;
using OPCAutomation;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        OPCServer MyOpcServer;  //opcserver
        OPCGroup MyOpcGroup;
        OPCItem MyOpcItem1;
        OPCItem MyOpcItem2;

        int[] ServerHandle = new int[2]; //

        const int READASYNC_ID = 1;
        const int WRITEASYNC_ID = 2;

        private void button1_Click(object sender, EventArgs e)
        {
            try 
            { 
            MyOpcServer=new OPCServer();
            MyOpcServer.Connect("Kepware.KEPServerEX.V5", "");

            MyOpcGroup = MyOpcServer.OPCGroups.Add("MyGroup1");
            MyOpcGroup.IsActive = true;
            MyOpcGroup.IsSubscribed = true;
            MyOpcGroup.DeadBand = 0;
            MyOpcGroup.UpdateRate = 1000;

            MyOpcItem1 = MyOpcGroup.OPCItems.AddItem("Channel1.Device1.tag1", 0);
            MyOpcItem2 = MyOpcGroup.OPCItems.AddItem("Channel1.Device1.tag2", 1);

            ServerHandle[0] = MyOpcItem1.ServerHandle;
            ServerHandle[1] = MyOpcItem2.ServerHandle;
               
           MyOpcGroup.AsyncWriteComplete  = new DIOPCGroupEvent_AsyncWriteCompleteEventHandler(MyOpcGroup_AsyncWriteComplete);
            MyOpcGroup.AsyncReadComplete  = new DIOPCGroupEvent_AsyncReadCompleteEventHandler(MyOpcGroup_AsyncReadComplete);
           MyOpcGroup.AsyncCancelComplete  = new DIOPCGroupEvent_AsyncCancelCompleteEventHandler(MyOpcGroup_AsyncCancelComplete);
            MyOpcGroup.DataChange  = new DIOPCGroupEvent_DataChangeEventHandler(MyOpcGroup_DataChange);
       

             

            }
            catch(System.Exception error)
            {
                MessageBox.Show(error.Message,"fail",MessageBoxButtons.OK,MessageBoxIcon.Error);
            }
        }

      



        void MyOpcGroup_AsyncCancelComplete(int CancelID)
        {
            throw new NotImplementedException();
        }

        void MyOpcGroup_AsyncReadComplete(int TransactionID, int NumItems, ref Array ClientHandles, ref Array ItemValues, ref Array Qualities, ref Array TimeStamps, ref Array Errors)
        {
            throw new NotImplementedException();
        }

        void MyOpcGroup_AsyncWriteComplete(int TransactionID, int NumItems, ref Array ClientHandles, ref Array Errors)
        {
            throw new NotImplementedException();
        }



        //同步读数据
        private void btn_read_s_click_Click(object sender, EventArgs e)
        {
            object ItemValues;
            object Qualities;
            object TimeStamps;

            try
            {
                MyOpcItem2.Read(1, out ItemValues, out Qualities, out TimeStamps);
                textBox2.Text = string.Format ("{0}", ItemValues);
                textBox3.Text = string.Format("{0}", Qualities);
                textBox4.Text = string.Format("{0}", TimeStamps);
            }
            catch(System.Exception error)
                {
                    MessageBox.Show(error.Message, "Result--同步读", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
        }

       
        //datachange事件
        void MyOpcGroup_DataChange(int TransactionID, int NumItems, ref Array ClientHandles, ref Array ItemValues, ref Array Qualities, ref Array TimeStamps)
        {
            try
            {

                textBox5.Text = string.Format("{0}", MyOpcItem1.Value);
                textBox6.Text = string.Format("{0}", MyOpcItem1.Quality);
                textBox7.Text = string.Format("{0}", MyOpcItem1.TimeStamp);


                textBox8.Text = string.Format("{0}", MyOpcItem2.Value);
                textBox9.Text = string.Format("{0}", MyOpcItem2.Quality);
                textBox10.Text = string.Format("{0}", MyOpcItem2.TimeStamp);

            }
            catch (System.Exception error)
            {
                MessageBox.Show(error.Message, "Result--同步读", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
      

    }
}

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