OPC client学习 2017.5.18

最新推荐文章于 2025-07-02 14:31:31 发布

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最新推荐文章于 2025-07-02 14:31:31 发布

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分类专栏： C# 文章标签： OPC

本文链接：https://blog.youkuaiyun.com/qq_36734390/article/details/72490151

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本文介绍了如何使用WebSocketSharp库实现WebSocket通信，并展示了通过OPC技术读取和写入工业设备数据的过程。文中详细说明了客户端与服务器端的交互流程及OPC客户端的配置步骤。

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1.Websocket的使用

使用WebSocketSharp.dll文件

String url = "ws://127.0.0.1:9991/api/v1/devices/rfid";

var ws = new WebSocket(url);

ws.onMessage += (sender, e) =>

Console.WriteLine("received message:" + e.Data);//接受消息

ws.Connect();ws.Send("{\"id\":\"Device-01\",\"cmd\":\"connect\",\"data\":{},\"uuid\":\"1\"}");

ws.Send("{\"id\":\"Device-01\",\"cmd\":\"ping\",\"data\":{},\"uuid\":\"2\"}");
ws.Send("{\"id\":\"Device-01\",\"cmd\":\"rfid_report\",\"data\":{\"id\":\"Device-01\"},\"uuid\":\"3\"}");
ws.Send("{\"id\":\"Device-01\",\"cmd\":\"test_rfid_open\",\"data\":{\"id\":\"Device-01\"},\"uuid\":\"4\"}");
ws.Send("{\"id\":\"Device-01\",\"cmd\":\"test_rfid_clear\",\"data\":{\"id\":\"Device-01\"},\"uuid\":\"5\"}");
ws.Send("{\"id\":\"Device-01\",\"cmd\":\"test_rfid_close\",\"data\":{\"id\":\"Device-01\"},\"uuid\":\"6\"}");
Console.ReadKey();

2.服务器端的WebSocket服务会将客户端发送过去的消息包装成WebsocketSessionMsg类型的数据，服务器端的Actor接受到合法的消息时会判断，做出相应的响应

客户端和服务器端可能会建立多个Session，所以服务器端可能只会遍历其中的一条Session，避免出现过多的重复消息，但是目前无法判断消息的准确性，等添加了Token之后就可以解决这个问题。

3.OPC Client 首先创建OPCServer-->>>OPCGroups---->>>OPCGroup---->>>OPCItems---->>>OPCItems的句柄

可以通过MatrikonOPC来虚拟一个OPCServer进行数据仿真。

代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using OPCAutomation;

namespace OpcClient
{
class ConnectOpc
{
//private LoggerManagerUtil log = new LoggerManagerUtil();
public BuhlerData buhlerData { get; set; } //布勒设备的工作状态 false表示秤上没有东西，true表示有
public Boolean connectOpcState { get; set; } = false;//OPC服务器是否连接成功的标志位
public ConnectServer cs { get; set; }
private OPCServer objServer;//OPCServer类
private OPCGroups objGroups;//通过OPCServer创建OPCGroups组
private OPCGroup objGroup;//
private OPCItems objItems;
private Array strItemIDs;//Items的数组形式,2个Item上的话,需要创建3个空间，使用后边2个
private Array lClientHandles;//客户端句柄，通过Items创建，2个Item上的话，值为0,1,2，一般使用1和2
private Array lserverhandles;//OPC服务器端句柄，添加OPC标签Items后通过OPC服务器端赋值
private Array lErrors;//添加OPC标签Items时OPC服务器端返回的错误信息
// int ltransID_Rd = 1;
// int lCancelID_Rd;
private object RequestedDataTypes = null;
private object AccessPaths = null;
// Array lerrors_Rd;
private Array lErrors_Wt;
private int lTransID_Wt = 2;
private int lCancelID_Wt;

public void ConnectOpcMethod() {
try {
//(1)创建opc server对象
objServer = new OPCServer();
//连接opc server
objServer.Connect("Matrikon.OPC.Simulation.1", null);
//objServer.Connect("OPCServer.WinCC.1", null);
//(2)建立一个opc组集合
objGroups = objServer.OPCGroups;
int a = objServer.ServerState;
//(3)建立一个opc组
objGroup = objGroups.Add(null); //Group组名字可有可无
//(4)添加opc标签
objGroup.IsActive = true; //设置该组为活动状态，连接PLC时，设置为非活动状态也一样
objGroup.IsSubscribed = true; //设置异步通知
objGroup.UpdateRate = 200;
objServer.OPCGroups.DefaultGroupDeadband = 0;
objGroup.DataChange += new DIOPCGroupEvent_DataChangeEventHandler(KepGroup_DataChange);
//objGroup.AsyncReadComplete += new DIOPCGroupEvent_AsyncReadCompleteEventHandler(AsyncReadComplete);
//objGroup.AsyncWriteComplete += new DIOPCGroupEvent_AsyncWriteCompleteEventHandler(AsyncWriteComplete);
objItems = objGroup.OPCItems; //建立opc标签集合
string[] tmpIDs = new string[49];
int[] tmpCHandles = new int[49];
for (int i = 1; i < 49; i++)
{
tmpCHandles[i] = i;
}
//tmpIDs[1] = "Random.Boolean";
//tmpIDs[2] = "Random.Boolean";
//tmpIDs[3] = "Triangle Waves.Int4";
initialTmpId(tmpIDs);
strItemIDs = (Array)tmpIDs;//必须转成Array型，否则不能调用AddItems方法
lClientHandles = (Array)tmpCHandles;
// 添加opc标签
objItems.AddItems(49, ref strItemIDs, ref lClientHandles, out lserverhandles, out lErrors, RequestedDataTypes, AccessPaths);
connectOpcState = true;
}
catch (Exception e) {
//log.LogManage("连接OPC异常,原因：" + e.Message);
}

}

public void initialTmpId(String[] tmpId) {
//OPC启动标志
tmpId[1] = "PL1.Bz_PLRUN1";
//包装信息
tmpId[2] = "TotalBags";
//秤清空标志
tmpId[3] = "PL1.Gross11";
tmpId[4] = "PL1.Gross12";
tmpId[5] = "PL1.Gross13";
tmpId[6] = "PL1.Gross14";
//混合机信息
tmpId[7] = "521_HHJ_HZ"; //混合机频率
tmpId[8] = "mixer1.T_DSV"; //混合机设定的混合所需总时间
tmpId[9] = "mixer1.T_FSV"; //混合机设定的放料所需总时间

//料仓开关信号
tmpId[10] = "IB16";
tmpId[11] = "IB17";
tmpId[12] = "IB18";

//料仓名称
tmpId[13] = "Binlm.1";
tmpId[14] = "Binlm.2";
tmpId[15] = "Binlm.3";
tmpId[16] = "Binlm.4";
tmpId[17] = "Binlm.5";
tmpId[18] = "Binlm.6";
tmpId[19] = "Binlm.7";
tmpId[20] = "Binlm.8";
tmpId[21] = "Binlm.9";
tmpId[22] = "Binlm.10";
tmpId[23] = "Binlm.11";
tmpId[24] = "Binlm.12";
tmpId[25] = "Binlm.13";
tmpId[26] = "Binlm.14";
tmpId[27] = "Binlm.15";
tmpId[28] = "Binlm.16";
tmpId[29] = "Binlm.17";
tmpId[30] = "Binlm.18";

//料仓余量
tmpId[31] = "BinWeight.1";
tmpId[32] = "BinWeight.2";
tmpId[33] = "BinWeight.3";
tmpId[34] = "BinWeight.4";
tmpId[35] = "BinWeight.5";
tmpId[36] = "BinWeight.6";
tmpId[37] = "BinWeight.7";
tmpId[38] = "BinWeight.8";
tmpId[39] = "BinWeight.9";
tmpId[40] = "BinWeight.10";
tmpId[41] = "BinWeight.11";
tmpId[42] = "BinWeight.12";
tmpId[43] = "BinWeight.13";
tmpId[44] = "BinWeight.14";
tmpId[45] = "BinWeight.15";
tmpId[46] = "BinWeight.16";
tmpId[47] = "BinWeight.17";
tmpId[48] = "BinWeight.18";

}

//同步写
public void Write_Syn(String str)
{
try {
if (!connectOpcState) {
ConnectOpcMethod();
}
int NumItems = 1;
int[] Handles = new int[2];
Handles[1] = Convert.ToInt32(lserverhandles.GetValue(3));
Array ServerHandles = (Array)(Handles);
object[] data = new object[2];
//data[1] = (object)Write1.Text;
data[1] = (object)str;
Array Values = (Array)data;
Array Errors;
objGroup.SyncWrite(NumItems, ref ServerHandles, ref Values, out Errors);
}
catch (Exception ex) {
//log.LogManage("向OPC写入数据异常,原因：" + ex.Message);
DisConnect();
}
}

//异步写完成
//private void AsyncWriteComplete(int TransactionID, int NumItems, ref Array ClientHandles, ref Array Errors)
//{
// throw new NotImplementedException();
//}

//订阅方式读
private void KepGroup_DataChange(int TransactionID, int NumItems, ref Array ClientHandles, ref Array ItemValues, ref Array Qualities, ref Array TimeStamps)
{
try {
//为了测试，所以加了控制台的输出，来查看事物ID号
//Console.WriteLine("********"+TransactionID.ToString()+"*********");

//订阅方式读，读到的数据通过ConnectServer的Send方法发送给Java服务器
for (int i = 0; i < NumItems; i++)
{

if (Convert.ToInt32(ClientHandles.GetValue(i + 1)) == 1)
{
if (ItemValues.GetValue(i + 1) != null)
{
//this.Value1.Text = ItemValues.GetValue(i + 1).ToString();
//this.Quality1.Text = Qualities.GetValue(i + 1).ToString();
//this.TimeStamp1.Text = TimeStamps.GetValue(i + 1).ToString();
//ConnectBean cb = new ConnectBean("1","test_read","",2);
//cs.send(Bean2JsonUtil.Bean2JsonMethod(cb));
String Value= ItemValues.GetValue(i + 1).ToString();
String Quality = Qualities.GetValue(i + 1).ToString();
String TimeStamp = TimeStamps.GetValue(i + 1).ToString();
String msg = OpcDataDealUtil.OpcDataDealMethod(Value,Quality,TimeStamp);
cs.send(msg);
}
}
if (Convert.ToInt32(ClientHandles.GetValue(i + 1)) == 2)
{
if (ItemValues.GetValue(i + 1) != null)
{
//this.Value2.Text = ItemValues.GetValue(i + 1).ToString();
//this.Quality2.Text = Qualities.GetValue(i + 1).ToString();
//this.TimeStamp2.Text = TimeStamps.GetValue(i + 1).ToString();
//ConnectBean cb = new ConnectBean("1", "test_read", "", 2);
//cs.send(Bean2JsonUtil.Bean2JsonMethod(cb));
String Value = ItemValues.GetValue(i + 1).ToString();
String Quality = Qualities.GetValue(i + 1).ToString();
String TimeStamp = TimeStamps.GetValue(i + 1).ToString();
String msg = OpcDataDealUtil.OpcDataDealMethod(Value, Quality, TimeStamp);
cs.send(msg);
}
}
if (Convert.ToInt32(ClientHandles.GetValue(i + 1)) == 3)
{
if (ItemValues.GetValue(i + 1) != null)
{
//this.Value3.Text = ItemValues.GetValue(i + 1).ToString();
//this.Quality3.Text = Qualities.GetValue(i + 1).ToString();
//this.TimeStamp3.Text = TimeStamps.GetValue(i + 1).ToString();
//ConnectBean cb = new ConnectBean("1", "test_read", "", 2);
//cs.send(Bean2JsonUtil.Bean2JsonMethod(cb));
String Value = ItemValues.GetValue(i + 1).ToString();
String Quality = Qualities.GetValue(i + 1).ToString();
String TimeStamp = TimeStamps.GetValue(i + 1).ToString();
String msg = OpcDataDealUtil.OpcDataDealMethod(Value, Quality, TimeStamp);
cs.send(msg);
}
}
}
}
catch (Exception e) {
//log.LogManage("订阅数据异常,原因：" + e.Message);
DisConnect();
}
}

//关闭OPC连接
private void DisConnect()
{
try {
if (objServer != null)
{
objServer.Disconnect();
}
connectOpcState = false;
//关闭kepserver进程，这个跟OPC操作无关
/*
foreach ( Process oneProcess in Process.GetProcesses())
{
if (oneProcess.ProcessName == "ServerMain")
oneProcess.Kill();
}
*/
}
catch (Exception ex) {
//log.LogManage("关闭OPC连接异常,原因：" + ex.Message);
connectOpcState = false;
}
}
}
}