public override bool WriteTag(TagId tag, string value)
{
try
{
groupWrite.RemoveItems(groupWrite.Items);
List <Item> writeList = new List <Item>();
List <ItemValue> valueList = new List <ItemValue>();
Item itemToWrite = new Item();
itemToWrite.ItemName = tag.TagName;
ItemValue itemValue = new ItemValue(itemToWrite);
itemValue.Value = value;
writeList.Add(itemToWrite);
valueList.Add(itemValue);
groupWrite.AddItems(writeList.ToArray());
for (int i = 0; i < valueList.Count; i++)
{
valueList[i].ServerHandle = groupWrite.Items[i].ServerHandle;
}
groupWrite.Write(valueList.ToArray());
return(true);
}
catch (Exception ex)
{
logger.Logged("Error", "Не удалось записать значние OPC DA сервера {" + tag.TagName + "[" + value + "]}: {" + ex.Message + "}", "OpcDaPoller", "WriteTag");
return(false);
}
}
public void WriteData(string[] itemName, int[] value)
{
groupWrite.RemoveItems(groupWrite.Items);
List <Item> writeList = new List <Item>();
List <ItemValue> valueList = new List <ItemValue>();
for (int x = 0; x < itemName.Length; x++)
{
Item itemToWrite = new Item();
itemToWrite.ItemName = itemName[x];
ItemValue itemValue = new ItemValue(itemToWrite);
itemValue.Value = value[x];
writeList.Add(itemToWrite);
valueList.Add(itemValue);
}
//IMPORTANT:
//#1: assign the item to the group so the items gets a ServerHandle
groupWrite.AddItems(writeList.ToArray());
// #2: assign the server handle to the ItemValue
for (int i = 0; i < valueList.Count; i++)
{
valueList[i].ServerHandle = groupWrite.Items[i].ServerHandle;
}
// #3: write
groupWrite.Write(valueList.ToArray());
}
/// <summary>
/// Add items (according to "itemList" parameter) into OPC.Subscription
/// </summary>
/// <param name="itemList"></param>
/// <param name="updateRate"></param>
/// <returns></returns>
public bool AddItems(Opc.Da.Item[] itemList, int updateRate = 0)
{
var state = new Opc.Da.SubscriptionState();
try
{
// Remove items
if (Items != null)
{
Subscription.RemoveItems(Items);
}
state.Active = false;
Subscription.ModifyState((int)Opc.Da.StateMask.Active, state);
state.UpdateRate = updateRate > 0 ? updateRate : 1000;
Subscription.ModifyState((int)Opc.Da.StateMask.UpdateRate, state);
foreach (var item in itemList)
{
item.ClientHandle = Guid.NewGuid().ToString();
}
Items = Subscription.AddItems(itemList);
Advised = false;
return(true);
}
catch (Exception e)
{
//MessageBox.Show(ex.Message);
throw e;
}
}
/// <summary>
/// 断开OPC连接
/// </summary>
public void OPC_disconnect()
{
OpcGroupClasssubscription.DataChanged -= new Opc.Da.DataChangedEventHandler(this.OnDataChange); //取消回调事件
OpcGroupClasssubscription.RemoveItems(OpcGroupClasssubscription.Items); //移除组内item
//结束：释放各资源
OpcGroupClassm_server.CancelSubscription(OpcGroupClasssubscription); //m_server前文已说明，通知服务器要求删除组。
OpcGroupClasssubscription.Dispose(); //强制.NET资源回收站回收该subscription的所有资源。
OpcGroupClassm_server.Disconnect(); //断开服务器连接
//不相关的
}
/// <summary>
/// 断开与OPC服务连接，并释放资源
/// </summary>
public void Disconect()
{
itemIndexDic.Clear();
//移除组内item
subscription.RemoveItems(subscription.Items);
//通知服务器要求删除组。
m_server.CancelSubscription(subscription);
subscription.Dispose();
m_server.Disconnect();
}
/// <summary>
/// 断开OPC服务器连接
/// </summary>
private void DisConnect()
{
if (m_server != null)
{
m_subscription.RemoveItems(m_subscription.Items);
// 结束：释放各资源
m_server.CancelSubscription(m_subscription); // m_server前文已说明，通知服务器要求删除组。
m_subscription.Dispose(); // 强制.NET资源回收站回收该subscription的所有资源。
m_server.Disconnect(); // 断开服务器连接
}
}
/// <summary>
/// OPC断开连接
/// </summary>
public void mOpc_DisConn()
{
try
{
if (m_Server != null)
{
subscription.RemoveItems(subscription.Items);
//结束：释放各资源
m_Server.CancelSubscription(subscription); //m_server前文已说明，通知服务器要求删除组。
subscription.Dispose(); //强制.NET资源回收站回收该subscription的所有资源。
m_Server.Disconnect();
}
}
catch (Exception ex)
{
throw new Exception("OPC断开函数（mOpc_DisConn）异常：" + ex.ToString());
}
}
/// <summary>
/// 断开OPC服务器连接
/// </summary>
private void DisConnect()
{
if (m_server != null)
{
m_subscription.RemoveItems(m_subscription.Items);
// 结束：释放各资源
m_server.CancelSubscription(m_subscription); // m_server前文已说明，通知服务器要求删除组。
m_subscription.Dispose(); // 强制.NET资源回收站回收该subscription的所有资源。
m_server.Disconnect(); // 断开服务器连接
}
if (null != m_timer)
{
m_timer.Stop();
m_timer.Close();
m_timer.Dispose();
}
m_lstItemValueResult = null;
m_lstAckTelegram = null;
}
public void Work()
{
int i = 5;
if (i == 1)
{
url = new Opc.URL("opcda://192.168.0.4/OPC.PHDServerDA.1");
server = new Opc.Da.Server(fact, null);
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
Opc.Da.Item[] itemCollection = new Opc.Da.Item[1];
itemCollection[0] = new Opc.Da.Item {
ItemName = "RTOS.TEST.PV", MaxAge = -1
};
Opc.Da.ItemValueResult[] result = server.Read(itemCollection);
Console.WriteLine(result[0].Value);
server.Disconnect();
}
else if (i == 2)
{
url = new Opc.URL("opcda://192.168.0.4/OPC.PHDServerDA.1");
server = new Opc.Da.Server(fact, null);
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group";
groupState.ServerHandle = null;
groupState.ClientHandle = Guid.NewGuid().ToString();
groupState.Active = true;
groupState.UpdateRate = 1000;
groupState.Deadband = 0;
groupState.Locale = null;
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
string[] itemName = { "RTOS.TEST.PV", "RTOR.TI1237.DACA.PV" };
Opc.Da.Item[] items = new Opc.Da.Item[2];
for (int j = 0; j < items.Length; j++)
{
items[j] = new Opc.Da.Item();
items[j].ClientHandle = Guid.NewGuid().ToString();
items[j].ItemPath = null;
items[j].ItemName = itemName[j];
}
groupRead.AddItems(items);
//groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(group_DataChanged);
Opc.Da.ItemValueResult[] results = groupRead.Read(groupRead.Items);
foreach (ItemValueResult result in results)
{
Console.WriteLine("{0},{1},{2},{3}", result.ItemName, result.Value, result.Quality, result.Timestamp);
}
//groupRead.DataChanged -= new Opc.Da.DataChangedEventHandler(group_DataChanged);
groupRead.RemoveItems(groupRead.Items);
server.CancelSubscription(groupRead);
groupRead.Dispose();
server.Disconnect();
}
else if (i == 3)
{
url = new Opc.URL("opcda://192.168.0.4/OPC.PHDServerDA.1");
server = new Opc.Da.Server(fact, null);
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group";
groupState.ServerHandle = null;
groupState.ClientHandle = Guid.NewGuid().ToString();
groupState.Active = true;
groupState.UpdateRate = 1000;
groupState.Deadband = 0;
groupState.Locale = null;
groupWrite = (Opc.Da.Subscription)server.CreateSubscription(groupState);
string[] itemName = { "RTOS.TEST.PV", "RTOS.TEST2.PV" };
Opc.Da.Item[] items = new Opc.Da.Item[2];
for (int j = 0; j < items.Length; j++)
{
items[j] = new Opc.Da.Item();
items[j].ClientHandle = Guid.NewGuid().ToString();
items[j].ItemPath = null;
items[j].ItemName = itemName[j];
}
groupWrite.AddItems(items);
//groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(group_DataChanged);
Opc.Da.ItemValue[] writeValues = new Opc.Da.ItemValue[groupWrite.Items.Length];
for (int k = 0; k < groupWrite.Items.Length; k++)
{
writeValues[k] = new Opc.Da.ItemValue((ItemIdentifier)groupWrite.Items[k]);
}
writeValues[0].Value = 5;
writeValues[1].Value = 6;
groupWrite.Write(writeValues);
Console.WriteLine("Press any key to close...");
Console.ReadLine();
//groupRead.DataChanged -= new Opc.Da.DataChangedEventHandler(group_DataChanged);
groupWrite.RemoveItems(groupWrite.Items);
server.CancelSubscription(groupWrite);
groupWrite.Dispose();
server.Disconnect();
}
else if (i == 4)
{
url = new Opc.URL("opchda://192.168.0.4/OPC.PHDServerHDA.1");
serverHda = new Opc.Hda.Server(fact, null);
serverHda.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
try
{
}
catch (Opc.ConnectFailedException opcConnEx)
{
Console.WriteLine(string.Format("Could not connect to server {0}", "OPC.PHDServerHDA.1"));
Console.WriteLine(opcConnEx.ToString());
}
Console.WriteLine("Are we connected? " + serverHda.IsConnected);
string[] itemName = { "RTOS.TEST.PV", "RTOS.TEST2.PV" };
Opc.Hda.Trend groupHda = new Trend(serverHda);
groupHda.Name = "HDA";
groupHda.AggregateID = AggregateID.NOAGGREGATE;
DateTime startTime = DateTime.Now.AddHours(-1);
DateTime endTime = DateTime.Now;
groupHda.StartTime = new Opc.Hda.Time(startTime);
groupHda.EndTime = new Opc.Hda.Time(endTime);
groupHda.MaxValues = 0;
groupHda.IncludeBounds = false;
serverHda.Trends.Add(groupHda);
Opc.Hda.Item[] items = new Opc.Hda.Item[2];
for (int m = 0; m < 2; m++)
{
items[m] = new Opc.Hda.Item();
items[m].ItemName = itemName[m];
items[m].ItemPath = null;
items[m].ClientHandle = Guid.NewGuid().ToString();
}
IdentifiedResult[] identifiedResult = serverHda.CreateItems(items);
if (identifiedResult != null)
{
foreach (IdentifiedResult item in identifiedResult)
{
if (item.ResultID.Succeeded())
{
groupHda.Items.Add(new Opc.Hda.Item(item));
}
}
}
Opc.Hda.ItemValueCollection[] results = groupHda.ReadRaw();
Opc.Hda.ItemValueCollection result1 = results[0];
foreach (Opc.Hda.ItemValue result in result1)
{
Console.WriteLine("{0},{1},{2}", result.Value, result.Quality, result.Timestamp);
}
serverHda.Disconnect();
}
else if (i == 5)
{
url = new Opc.URL("opchda://192.168.0.4/OPC.PHDServerHDA.1");
serverHda = new Opc.Hda.Server(fact, null);
serverHda.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
try
{
}
catch (Opc.ConnectFailedException opcConnEx)
{
Console.WriteLine(string.Format("Could not connect to server {0}", "OPC.PHDServerHDA.1"));
Console.WriteLine(opcConnEx.ToString());
}
Console.WriteLine("Are we connected? " + serverHda.IsConnected);
string[] itemName = { "RTOR.TI1237.DACA.PV", "RTOS.TEST2.PV" };
Opc.Hda.Trend groupHda = new Trend(serverHda);
groupHda.Name = "HDA";
groupHda.AggregateID = AggregateID.AVERAGE;
DateTime startTime = DateTime.Now.AddHours(-1);
DateTime endTime = DateTime.Now;
//TimeSpan span = endTime.Subtract(startTime);
//int calcInterval = ((int)span.TotalSeconds);
//groupHda.ResampleInterval = (decimal)calcInterval;
//DateTime startTime = new DateTime(2020, 6, 12, 9, 0, 0, 0);
//DateTime endTime = new DateTime(2020, 6, 12, 10, 0, 0, 0);
int calcInterval = 300;
groupHda.ResampleInterval = (decimal)calcInterval;
groupHda.StartTime = new Opc.Hda.Time(startTime);
groupHda.EndTime = new Opc.Hda.Time(endTime);
groupHda.MaxValues = 0;
groupHda.IncludeBounds = false;
serverHda.Trends.Add(groupHda);
Opc.Hda.Item[] items = new Opc.Hda.Item[2];
for (int m = 0; m < 2; m++)
{
items[m] = new Opc.Hda.Item();
items[m].ItemName = itemName[m];
items[m].ItemPath = null;
items[m].ClientHandle = Guid.NewGuid().ToString();
}
IdentifiedResult[] identifiedResult = serverHda.CreateItems(items);
if (identifiedResult != null)
{
foreach (IdentifiedResult item in identifiedResult)
{
if (item.ResultID.Succeeded())
{
groupHda.Items.Add(new Opc.Hda.Item(item));
}
}
}
Opc.Hda.ItemValueCollection[] results = groupHda.ReadProcessed();
Opc.Hda.ItemValueCollection result1 = results[0];
foreach (Opc.Hda.ItemValue result in result1)
{
Console.WriteLine("{0},{1},{2}", result.Value, result.Quality, result.Timestamp);
}
serverHda.Disconnect();
}
}
/// <summary>
/// 注册Opc数据项集合
/// </summary>
/// <param name="opcDataItems"></param>
private void registerOpcDataItems(IList <OpcDataItem> opcDataItems)
{
this.OpcDataItems = opcDataItems;
daemonTimer.Enabled = false;
daemonTimer.Stop();
//如果未连接那么返回
if (!this.IsConnected)
{
if (!Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcErrorEventArgs(OpcResult.E_FAIL, "Opc服务器未连接，请先连接在订阅数据项", null));
}
return;
}
#region 没有数据项那么清空所有订阅
//如果订阅的DataItem没有，那么清空现在所有订阅
if (Equals(null, opcDataItems) || opcDataItems.Count() < 1)
{
if (!Equals(this.opcServer.Subscriptions, null) && this.opcServer.Subscriptions.Count > 0)
{
foreach (Opc.Da.Subscription thisSubscription in this.opcServer.Subscriptions)
{
thisSubscription.RemoveItems(thisSubscription.Items);
thisSubscription.DataChanged -= ThisSubscription_DataChanged;
this.opcServer.CancelSubscription(thisSubscription);
thisSubscription.Dispose();
}
this.opcServer.Subscriptions.Clear();
//订阅项取消后通知外部程序
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcHelper.OpcLogEventArgs("已经取消所有订阅"));
}
return;
}
}
#endregion 数据项需要更新或者删除
//根据要订阅的新数据项，增加或者移除现在的订阅
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
//根据更新频率分组
var dataItemGroups = from a in opcDataItems
group a by a.UpdateRate into g
select new { UpdateRate = g.Key, DataItems = g };
//循环每组订阅对象，查询是否实际订阅，有则更新，没有则新建
foreach (var dataItemGroup in dataItemGroups)
{
Opc.Da.Subscription thisSubscription = this.opcServer.Subscriptions.Cast <Opc.Da.Subscription>().FirstOrDefault(a => a.State.UpdateRate == dataItemGroup.UpdateRate);
//未找到已经订阅的组，那么新建组并添加订阅项
if (Equals(null, thisSubscription))
{
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
#region 增加订阅
//创建订阅组。订阅组状态的名称是更新频率
Opc.Da.Subscription newSubscription = this.opcServer.CreateSubscription
(CreateSubscriptionState(dataItemGroup.UpdateRate.ToString(), dataItemGroup.UpdateRate))
as Opc.Da.Subscription;//创建组
//创建opc订阅项
var opcItems = ConvertItems(dataItemGroup.DataItems);
//添加订阅项
var results = newSubscription.AddItems(opcItems.ToArray());
newSubscription.DataChanged += ThisSubscription_DataChanged;
//订阅的结果通过事件通知给外部调用程序
foreach (var v in results)
{
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
//订阅成功更新状态
if (v.ResultID == Opc.ResultID.S_OK)
{
OpcResult opcResult = OpcResult.Unknow;
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
OpcDataItems.FirstOrDefault(a => a.Name == v.ItemName).Quality = opcResult;
}
//未订阅成功，异常事件通知
else if (v.ResultID == Opc.ResultID.S_OK && !Equals(null, OnDataChanged))
{
OnDataChanged(this, new OpcDataEventArgs(OpcResult.DataItemRegistered,
dataItemGroup.DataItems.FirstOrDefault(a => a.Name == v.ItemName)));
}
else if (v.ResultID != Opc.ResultID.S_OK && !Equals(null, OnErrorHappened))
{
OpcResult opcResult = OpcResult.Unknow;
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
this.OpcDataItems.FirstOrDefault(a => a.Name == v.ItemName).Quality = opcResult;
OnErrorHappened(this, new OpcErrorEventArgs(opcResult, "订阅数据项时发生错误" + v.ResultID.Name, null));
}
}//end foreach
#endregion
}
else//已经有订阅组，那么更新订阅项
{
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
#region 已经有订阅组，那么更新订阅项
//查询要新增加的点，
IList <OpcDataItem> newItems = new List <OpcDataItem>();
foreach (var v in dataItemGroup.DataItems)
{
if (!thisSubscription.Items.Any(a => a.ItemName == v.Name))
{
newItems.Add(v);
}
}
var opcItems = ConvertItems(newItems);
//添加订阅项
var addResults = thisSubscription.AddItems(opcItems.ToArray());
//订阅的结果通过事件通知给外部调用程序
foreach (var v in addResults)
{
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
//订阅成功更新状态
if (v.ResultID == Opc.ResultID.S_OK)
{
OpcResult opcResult = OpcResult.Unknow;
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
OpcDataItems.FirstOrDefault(a => a.Name == v.ItemName).Quality = opcResult;
}
//未订阅成功，异常事件通知
else if (v.ResultID == Opc.ResultID.S_OK && !Equals(null, OnDataChanged))
{
OnDataChanged(this, new OpcDataEventArgs(OpcResult.DataItemRegistered,
dataItemGroup.DataItems.FirstOrDefault(a => a.Name == v.ItemName)));
}
else if (v.ResultID != Opc.ResultID.S_OK && !Equals(null, OnErrorHappened))
{
OpcResult opcResult = OpcResult.Unknow;
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
this.OpcDataItems.FirstOrDefault(a => a.Name == v.ItemName).Quality = opcResult;
OnErrorHappened(this, new OpcErrorEventArgs(opcResult, "订阅数据项时发生错误:" + v.ItemName + " 无效,OpcResult=" + v.ResultID.Name, null));
}
}//end foreach
//查询要删除的点，
IList <Opc.Da.Item> deleteItems = new List <Opc.Da.Item>();
foreach (var v in thisSubscription.Items)
{
if (!dataItemGroup.DataItems.Any(a => a.Name == v.ItemName))
{
deleteItems.Add(v);
}
}
//删除已经订阅点
var deleteResults = thisSubscription.RemoveItems(deleteItems.ToArray());
//订阅的结果通过事件通知给外部调用程序
foreach (var v in deleteResults)
{
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
//未订阅成功，异常事件通知
if (v.ResultID == Opc.ResultID.S_OK && !Equals(null, OnDataChanged))
{
OpcDataItem tmp2 = new OpcDataItem(v.ItemName, thisSubscription.State.UpdateRate, "", "", OpcResult.DataItemUnregistered);
OnDataChanged(this, new OpcDataEventArgs(OpcResult.DataItemUnregistered, tmp2));
}
else if (v.ResultID != Opc.ResultID.S_OK && !Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcErrorEventArgs(OpcResult.E_FAIL, "取消订阅数据项时发生错误" + v.ResultID.Name, null));
}
}//end foreach
//删除订阅项后没有item了，那么删除thisSubscription
if (thisSubscription.Items.Count() < 1)
{
thisSubscription.DataChanged -= ThisSubscription_DataChanged;
string name = thisSubscription.Name;
//this.opcServer.Subscriptions.Remove(thisSubscription);
this.opcServer.CancelSubscription(thisSubscription);
thisSubscription.Dispose();//
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Subscription " + name + " 已经从订阅组中移除"));
}
name = null;
}
#endregion
}
}//end foreach (var dataItemGroup in dataItemGroups)
//删除订阅项后没有item了，那么删除subscription
foreach (var subscription in this.opcServer.Subscriptions.Cast <Opc.Da.Subscription>())
{
var isHave = dataItemGroups.Any(a => a.UpdateRate == subscription.State.UpdateRate);
if (!isHave)
{
subscription.DataChanged -= ThisSubscription_DataChanged;
string name = subscription.Name;
//his.opcServer.Subscriptions.Remove(thisSubscription);
this.opcServer.CancelSubscription(subscription);
subscription.Dispose();//
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Subscription " + name + " 已经从订阅组中移除"));
}
name = null;
}
}
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("OPC Subscriptions Count:" + this.opcServer.Subscriptions.Count + "."));
}
daemonTimer.Enabled = true;
daemonTimer.Start();
}