using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using GodSharp.Opc.Da;
using OPCAutomation;//引用OPC驱动
namespace 泵站控制系统
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
this.button1_Click(null,null);
}
private void Form1_Load(object sender, EventArgs e)
{
ServerNode.Text = "127.0.0.1";
}
private OPCServer KepServer;
#region 刷新节点
private void button1_Click(object sender, EventArgs e)//刷新节点
{
this.ServerNode.Items.Clear();
string computerName = Environment.MachineName;
IPHostEntry IPhost = Dns.GetHostEntry(System.Environment.MachineName);
if (IPhost.AddressList.Length>0)
{
for(int i=0;i<IPhost.AddressList.Length;i++)
{
// string Host = Dns.GetHostEntry(IPhost.AddressList).HostName; //获取电脑主机名称
string Host = "localhost";
if (!this.ServerNode.Items.Contains(Host))
{
this.ServerNode.Items.Add(Host);
}
}
}
#endregion
}
#region 获取OPC列表
private void ServerNode_SelectedIndexChanged(object sender, EventArgs e)
{
if(KepServer==null)
{
KepServer = new OPCServer();
}
Object serverlist=KepServer.GetOPCServers(this.servername.Text);
foreach(var item in (Array)serverlist)
{
if (!this.servername.Items.Contains(item))
{
this.servername.Items.Add(item);
}
}
}
#endregion
#region 链接OPC
private void button2_Click(object sender, EventArgs e)
{
if (KepServer != null)//判断OPC是否存在
{
KepServer = new OPCServer();
}
try
{
KepServer.Connect(this.servername.Text, this.ServerNode.Text);
MessageBox.Show("连接成功");
}
catch (Exception ex)
{
MessageBox.Show("链接失败" + ex.Message);
return;//连接失败，退出运行，后面代码不执行
}
#endregion
}
}
}
C#与OPC链接测试
http://bbs.plcjs.com/forum.php?mod=viewthread&tid=502497&fromuid=17
(出处: PLC论坛-全力打造可编程控制器专业技术论坛)