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一,安装KEPware.Enhanced.OPC.DDE.KEPServer。(PLC数据传送给KEPServer,开发的程序用OPCServer读KEPServer)
打开quick client 查看传值情况
二.C#程序代码
引用opcdaauto.dll
在win7 64位下KepServer = new OPCServer()会出错的问题,
检索COM 类工厂中 CLSID 为 <28e68f9a-8d75-11d1-8dc3-3c302a000000> 的组件时失败,原因是出现以下错误: 80040154
1.一定要到C:\Windows\SysWOW64路径下打开cmd.exe运行命令文件(而不是在运行打开),注册“OPCDAAuto.dll” 输入命令: REGSVR32 OPCDAAuto.dll;即可
2.编译工具目标要选择x86
KepServer.Connect("KEPware.KEPServerEx.V4", "127.0.0.1"); 此处ip地址是安装KEPware.Enhanced.OPC.DDE.KEPServer电脑的ip地址.
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 OPCAutomation; using System.Threading; namespace SPCTest { public partial class Form2 : Form { private OPCServer KepServer; private OPCGroups KepGroups; private OPCGroup KepGroup; private OPCItems KepItems; //轴承净重,注脂量,防尘盖压入深度,防尘盖平整度 压入OK/NG private OPCItem item1, item2, item3; public Form2() { InitializeComponent(); } #region OPC Server private void KepServerLoad() { try { KepServer = new OPCServer(); KepServer.Connect("KEPware.KEPServerEx.V4", "127.0.0.1"); if (KepServer.ServerState == (int)OPCServerState.OPCRunning) { // statusLabelConnectInfo.Text = "OPC Server连接成功"; } else { // statusLabelConnectInfo.Text = "OPC Server连接失败"; return; } } catch (Exception ex) { // statusLabelConnectInfo.Text = "OPC Server连接失败," + ex.Message; return; } KepGroups = KepServer.OPCGroups; Thread t1; // 开1个线程用于读取数据 t1 = new Thread(new ThreadStart(KepProcess)); t1.Start(); } public void KepProcess() { //KepGroup = KepGroups.Add("Channel.Device.Group"); KepGroup = KepGroups.Add("Channel1.Device1.Group"); KepGroup.UpdateRate = 250; KepGroup.IsActive = true; KepGroup.IsSubscribed = true; //当KepGroup中数据发生改变的触发事件 KepGroup.DataChange += new DIOPCGroupEvent_DataChangeEventHandler(KepGroup_DataChange); KepItems = KepGroup.OPCItems; item1 = KepItems.AddItem("Channel1.Device1.A01", 1); item2 = KepItems.AddItem("Channel1.Device1.A02", 2); item3 = KepItems.AddItem("Channel1.Device1.A03", 3); } //当数据改变时触发的事件 public delegate void DelegateShowMessage(string str); public void KepGroup_DataChange(int TransactionID, int NumItems, ref Array ClientHandles, ref Array ItemValues, ref Array Qualities, ref Array TimeStamps) { string str = ""; DelegateShowMessage show1 = new DelegateShowMessage(ShowMessage); for (int i = 1; i <= NumItems; i++) { if (ClientHandles.GetValue(i).Equals(1)) { str = "A01:" + ItemValues.GetValue(i).ToString(); } if (ClientHandles.GetValue(i).Equals(2)) { str = "A02:" + ItemValues.GetValue(i).ToString(); } if (ClientHandles.GetValue(i).Equals(3)) { str = "A03:" + ItemValues.GetValue(i).ToString(); } BeginInvoke(show1, new string[] { str }); } } public void ShowMessage(string str) { richTextBox1.AppendText(str+","); } #endregion private void Form2_Load(object sender, EventArgs e) { KepServerLoad(); } private void Form2_FormClosing(object sender, FormClosingEventArgs e) { KepServer.Disconnect(); } } }
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原文地址:http://www.cnblogs.com/ike_li/p/5468658.html