/// <summary>
/// opc 그룹 모두 지우기
/// </summary>
/// <param name="reset">command 그룹 삭제 여부</param>
public void RemoveAllGroup(bool reset)
{
try
{
for (int j = this.Server.Subscriptions.Count - 1; j >= 0; j--)
{
Opc.Da.Subscription sub = this.Server.Subscriptions[j];
if (reset == false)
{
if (sub.Name == "cmd")
{
continue;
}
}
this.Server.CancelSubscription(sub);
}
if (reset)
{
this.CommandSubscription = null;
}
this.WriteSubscriptions.Clear();
this.ReadSubscriptions.Clear();
}
catch (Exception ex)
{
CommonController.Instance.PrintLog("RemoveAllGroup , " + ex.GetType().Name);
CommonController.Instance.PrintLog(ex.StackTrace);
}
}
/// <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;
}
}
private void EnableDataWriteCallback(Subscription group, ItemValue[] writeValues)
{
Opc.IRequest req;
group.Write(writeValues, 44.0, new WriteCompleteEventHandler(WriteCompleteCallback), out req);
group.State.Active = true;
Console.WriteLine();
}
private void EnableDataChangedCallback(Subscription group)
{
DataChangedEventHandler handler = new DataChangedEventHandler(DataChangedCallback);
group.DataChanged += new DataChangedEventHandler(DataChangedCallback);
group.State.Active = true;
}
/*********************************************************************************************************************
*
* Buttons End
*
*********************************************************************************************************************/
/*********************************************************************************************************************
*
* Methods
*
* Show Components():
* Search For Components():
* Search For Job():
*
*
*********************************************************************************************************************/
private void JobData_ConnectToOPCServer(object sender, EventArgs e)
{
try
{
OPCServer = new Opc.Da.Server(OPCFactory, null);
OPCServer.Url = new Opc.URL("opcda://OHN66OPC/Kepware.KEPServerEX.V6");
OPCServer.Connect();
Component_StateRead = new Opc.Da.SubscriptionState();
Component_StateRead.Name = "Component_Reading";
Component_StateRead.UpdateRate = 1000;
Component_StateRead.Active = true;
Component_Read = (Opc.Da.Subscription)OPCServer.CreateSubscription(Component_StateRead);
Component_Read.DataChanged += new Opc.Da.DataChangedEventHandler(Component_Read_DataChanged);
ScanNewPart_StateWrite = new Opc.Da.SubscriptionState();
ScanNewPart_StateWrite.Name = "ScanNewPart_WriteGroup";
ScanNewPart_StateWrite.Active = true;
ScanNewPart_Write = (Opc.Da.Subscription)OPCServer.CreateSubscription(ScanNewPart_StateWrite);
Hardware_StateWrite = new Opc.Da.SubscriptionState();
Hardware_StateWrite.Name = "Hardware_WriteGroup";
Hardware_StateWrite.Active = true;
Hardware_Write = (Opc.Da.Subscription)OPCServer.CreateSubscription(Hardware_StateWrite);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void EnableDataReadCallback(Subscription group)
{
Opc.IRequest req;
group.Read(group.Items, 44.0, new ReadCompleteEventHandler(ReadCompleteCallback), out req);
Console.WriteLine();
group.State.Active = true;
}
public void ConnectToServer()
{
try
{
//LOCAL OPC CONNECTION kepware
//url = new Opc.URL("opcda://PCNAME/Kepware.KEPServerEX.V6");
//LOCAL OPC CONNECTION RSLinx
//url = new Opc.URL("opcda://PCNAME/RSLinx OPC Server");
//REMOTE OPC CONNECTION WHEN USING opcexpert tunneling
url = new Opc.URL("opcda://PCNAME/RSLinx Remote OPC Server.REMOTEPCNAME");
//REMOTE RSLinx OPC
//this requires DCOM setup
//url = new Opc.URL("opcda://PCNAME/RSLinx Remote OPC Server");
server = new Opc.Da.Server(fact, url);
System.Net.NetworkCredential networkCredential = new System.Net.NetworkCredential();
Opc.ConnectData connecteddata = new Opc.ConnectData(networkCredential);
server.Connect(url, connecteddata);
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group";
groupState.UpdateRate = 1; // this isthe time between every reads from OPC server
groupState.Active = true; //this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(UpdateTagData); //callback when the data are readed
Opc.Da.Item[] items_read = groupRead.AddItems(createSomeTags());
}
catch (Exception E)
{
Console.WriteLine(E.Message);
}
}
/// <summary>
/// 写数据
/// </summary>
/// <param name="opcDataItem"></param>
/// <param name="value"></param>
/// <returns></returns>
public OpcResult Write(OpcDataItem opcDataItem, object value)
{
OpcResult opcResult = OpcResult.Unknow;
//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，请先连接再写数据项", null));
}
return(opcResult);
}
try
{
if (Equals(null, opcDataItem))
{
throw new ArgumentNullException("opcDataItem参数不能为空。");
}
Opc.Da.Subscription tmpSubscription =
this.opcServer.Subscriptions.Cast <Opc.Da.Subscription>().FirstOrDefault(a => a.State.UpdateRate == opcDataItem.UpdateRate);
var itemValue =
new ItemValue((ItemIdentifier)tmpSubscription.Items.FirstOrDefault(a => a.ItemName == opcDataItem.Name));
//itemValue.Value = opcDataItem.NewValue;
itemValue.Value = value;
var results = tmpSubscription.Write(new ItemValue[] { itemValue });
//写多次
//for (int i = 0; i < 20; i++)
//{
results = tmpSubscription.Write(new ItemValue[] { itemValue });
//}
if (results.Count() < 1 && !Equals(null, OnErrorHappened))
{
opcResult = OpcResult.E_UNKNOWN_ITEM_NAME;
OnErrorHappened(this, new OpcErrorEventArgs(opcResult, "写入数据项时发生错误，未找到数据项:" + opcDataItem.Name, null));
opcDataItem.Quality = OpcResult.Unknow;
return(opcResult);
}
foreach (var v in results)
{
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
if (v.ResultID != Opc.ResultID.S_OK && !Equals(null, OnErrorHappened))
{
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
OnErrorHappened(this, new OpcErrorEventArgs(opcResult, "写入数据项时发生错误:" + v.ResultID.Name, null));
}
}//end foreach
return(opcResult);
}
catch (Exception ex)
{
if (!Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcHelper.OpcErrorEventArgs(OpcResult.E_FAIL, "写入数据时错误。", ex));
}
return(opcResult);
}
}
/// <summary>
/// 读数据
/// </summary>
/// <param name="opcDataItem"></param>
/// <returns></returns>
public OpcDataItem Read(OpcDataItem opcDataItem)
{
OpcDataItem opcDataItemResult = null;
//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，请先连接再读取数据项", null));
}
return(opcDataItemResult);
}
try
{
if (Equals(null, opcDataItem))
{
throw new ArgumentNullException("opcDataItem参数不能为空。");
}
Opc.Da.Subscription tmpSubscription =
this.opcServer.Subscriptions.Cast <Opc.Da.Subscription>().FirstOrDefault(a => a.State.UpdateRate == opcDataItem.UpdateRate);
var item = tmpSubscription.Items.Where(a => a.ItemName == opcDataItem.Name);
var results = tmpSubscription.Read(item.ToArray());
OpcResult opcResult;
if (results.Count() < 1 && !Equals(null, OnErrorHappened))
{
opcResult = OpcResult.E_UNKNOWN_ITEM_NAME;
OnErrorHappened(this, new OpcErrorEventArgs(opcResult, "读取数据项时发生错误，未找到数据项:" + opcDataItem.Name, null));
opcDataItem.Quality = OpcResult.E_UNKNOWN_ITEM_NAME;
return(opcDataItem);
}
foreach (var v in results)
{
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
opcDataItemResult = this.OpcDataItems.FirstOrDefault(a => a.Name == opcDataItem.Name);
opcDataItemResult.Quality = opcResult;
opcDataItemResult.OldValue = opcDataItemResult.NewValue;
opcDataItemResult.NewValue = v.Value;
if (v.ResultID != Opc.ResultID.S_OK && !Equals(null, OnErrorHappened))
{
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
OnErrorHappened(this, new OpcErrorEventArgs(opcResult, "读取数据项时发生错误:" + v.ResultID.Name, null));
}
}//end foreach
return(opcDataItemResult.Clone() as OpcDataItem);
}
catch (Exception ex)
{
if (!Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcHelper.OpcErrorEventArgs(OpcResult.E_FAIL, "读取数据时错误。", ex));
}
return(opcDataItemResult);
}
}
/// <summary>
/// Refesh the data, only works in "auto" mode.
/// </summary>
public void Refresh()
{
try
{
Subscription.Refresh();
}
catch (Exception e)
{
throw e;
}
}
/// <summary>
/// olga opc 서버용 command group 추가.
/// </summary>
/// <returns></returns>
private bool SetOLGACmd()
{
bool result = true;
SubscriptionState subscriptionstate = new SubscriptionState()
{
Active = true,
Deadband = 0,
KeepAlive = 0,
UpdateRate = 1000,
ClientHandle = Guid.NewGuid().ToString(),
Name = "cmd"
};
//현재 선택된 서버에 Group을 생성한다.
Opc.Da.Subscription cmd = (Opc.Da.Subscription) this.Server.CreateSubscription(subscriptionstate);
this.CommandSubscription = new OPCSubscription()
{
Subscription = cmd
};
List <Opc.Da.Item> cmdlist = new List <Opc.Da.Item>();
cmdlist.Add(OPCServer.CreateOPCItem(string.Format("Sim.{0}.ExternalClock", this.Controller.OLGAModelName))); //0
cmdlist.Add(OPCServer.CreateOPCItem(string.Format("Sim.{0}.TIME", this.Controller.OLGAModelName))); //1
cmdlist.Add(OPCServer.CreateOPCItem(string.Format("Sim.{0}.State", this.Controller.OLGAModelName))); //2
cmdlist.Add(OPCServer.CreateOPCItem(string.Format("Sim.{0}.LoadSnap", this.Controller.OLGAModelName))); //3
cmdlist.Add(OPCServer.CreateOPCItem(string.Format("Sim.{0}.LoadSnap.File", this.Controller.OLGAModelName))); //4
cmdlist.Add(OPCServer.CreateOPCItem(string.Format("Sim.{0}.SaveSnap", this.Controller.OLGAModelName))); //5
cmdlist.Add(OPCServer.CreateOPCItem(string.Format("Sim.{0}.SaveSnap.File", this.Controller.OLGAModelName))); //6
cmdlist.Add(OPCServer.CreateOPCItem(string.Format("Sim.{0}.LastMessage", this.Controller.OLGAModelName))); //7
ItemResult[] ir = cmd.AddItems(cmdlist.ToArray());
StringBuilder strb = new StringBuilder();
for (int i = 0; i < ir.Length; i++)
{
if (ir[i].ResultID.Failed())
{
result = false;
strb.AppendFormat("{0}\n", ir[i].ItemName);
}
}
if (result == false)
{
strb.Insert(0, "Check OLGA OPC Server configuration, can't find the tag\n");
CommonController.Instance.PrintLog(strb.ToString());
}
return(result);
}
public void ConnectToServer()
{
try
{
url = new Opc.URL("opcda://IAPENG1/RSLinx OPC Server");
//server = new Opc.Da.Server(fact, null);
server = new Opc.Da.Server(fact, url);
System.Net.NetworkCredential networkCredential = new System.Net.NetworkCredential();
Opc.ConnectData connecteddata = new Opc.ConnectData(networkCredential);
server.Connect(url, connecteddata);
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group";
groupState.UpdateRate = 1000; // this isthe time between every reads from OPC server
groupState.Active = true; //this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(UpdateTagData); //callback when the data are readed
if (items[0] == null)
{
items[0] = new Opc.Da.Item();
items[1] = new Opc.Da.Item();
items[2] = new Opc.Da.Item();
items[3] = new Opc.Da.Item();
items[4] = new Opc.Da.Item();
items[5] = new Opc.Da.Item();
items[6] = new Opc.Da.Item();
items[7] = new Opc.Da.Item();
}
items[0].ItemName = "[PLC2]LocalDateTime[0]";
items[1].ItemName = "[PLC2]LocalDateTime[1]";
items[2].ItemName = "[PLC2]LocalDateTime[2]";
items[3].ItemName = "[PLC2]LocalDateTime[3]";
items[4].ItemName = "[PLC2]LocalDateTime[4]";
items[5].ItemName = "[PLC2]LocalDateTime[5]";
items[6].ItemName = "[PLC2]LocalDateTime[6]";
items[7].ItemName = "[PLC2]LocalDateTime";
items = groupRead.AddItems(items);
// Create a write group
groupStateWrite = new Opc.Da.SubscriptionState();
groupStateWrite.Name = "Group Write";
groupStateWrite.Active = false;//not needed to read if you want to write only
groupWrite = (Opc.Da.Subscription)server.CreateSubscription(groupStateWrite);
}
catch (Exception E)
{
Console.WriteLine(E.Message);
}
}
private void User_Program_Teach_Senson_Load(object sender, EventArgs e)
{
SpotWeldID(); // Get Computer ID and Set Tag Name
// Connect to OPC Server
OPCServer = new Opc.Da.Server(OPCFactory, null);
OPCServer.Url = new Opc.URL("opcda://OHN66OPC/Kepware.KEPServerEX.V6");
OPCServer.Connect();
Sensor_StateRead = new Opc.Da.SubscriptionState();
Sensor_StateRead.Name = "Teach_Sensor_OPC";
Sensor_StateRead.UpdateRate = 1000;
Sensor_StateRead.Active = true;
Sensor_Read = (Opc.Da.Subscription)OPCServer.CreateSubscription(Sensor_StateRead);
Sensor_Read.DataChanged += new Opc.Da.DataChangedEventHandler(Sensor_Read_DataChanged);
TeachSensor_StateWrite = new Opc.Da.SubscriptionState();
TeachSensor_StateWrite.Name = "OPCWriteGroup";
TeachSensor_StateWrite.Active = false;
TeachSensor_Write = (Opc.Da.Subscription)OPCServer.CreateSubscription(TeachSensor_StateWrite);
GroupStateWriteCompOne = new Opc.Da.SubscriptionState();
GroupStateWriteCompOne.Name = "OPCWriteOneGroup";
GroupStateWriteCompOne.Active = false;
GroupWriteCompOne = (Opc.Da.Subscription)OPCServer.CreateSubscription(GroupStateWriteCompOne);
GroupStateWriteCompTwo = new Opc.Da.SubscriptionState();
GroupStateWriteCompTwo.Name = "OPCWriteTwoGroup";
GroupStateWriteCompTwo.Active = false;
GroupWriteCompTwo = (Opc.Da.Subscription)OPCServer.CreateSubscription(GroupStateWriteCompTwo);
GroupStateWriteCompThree = new Opc.Da.SubscriptionState();
GroupStateWriteCompThree.Name = "OPCWriteThreeGroup";
GroupStateWriteCompThree.Active = false;
GroupWriteCompThree = (Opc.Da.Subscription)OPCServer.CreateSubscription(GroupStateWriteCompThree);
// Get The Component ID From the User Program
Component_1_TextBox.Text = owner.Comp1_TextBox.Text;
Component_2_TextBox.Text = owner.Comp2_TextBox.Text;
Component_3_TextBox.Text = owner.Comp3_TextBox.Text;
CheckComponentValue(); // Find the Number of Components
//TargetValueSet_TextBox.Clear();
OPC_TeachSensorValue = 1;
TeachSensor_OPC();
SensorRead_OPC();
WriteComponentOne_OPC();
}
/// <summary>
/// Synchronize read from the OPC Server
/// </summary>
/// <param name="results"></param>
/// <returns></returns>
public bool SyncRead(ref Opc.Da.ItemValueResult[] results)
{
if (Subscription == null)
{
return(false);
}
try
{
results = Subscription.Read(Subscription.Items);
}
catch (Exception e)
{
throw e;
}
return(results != null && results.Length != 0);
}
/// <summary>
/// Synchronize write to the OPC Server
/// </summary>
public bool SyncWrite(ref ItemValue[] items)
{
if (Subscription == null)
{
return(false);
}
try
{
var results = Subscription.Write(items);
return(true);
}
catch (Exception e)
{
//MessageBox.Show(e.Message);
throw e;
}
}
private void Subscript()
{
//设定组状态
state = new Opc.Da.SubscriptionState(); //组（订阅者）状态，相当于OPC规范中组的参数
state.Name = "Welding"; //组名
state.ServerHandle = null; //服务器给该组分配的句柄。
//state.ClientHandle = Guid.NewGuid().ToString();//客户端给该组分配的句柄。
state.ClientHandle = Guid.NewGuid().GetHashCode(); //使用int类型， 效率可能有提高
state.Active = true; //激活该组。
state.UpdateRate = 1000; //刷新频率为1秒。
state.Deadband = 0; // 死区值，设为0时，服务器端该组内任何数据变化都通知组。
state.Locale = null; //不设置地区值。
//添加组
subscription = (Opc.Da.Subscription)m_server.CreateSubscription(state);//创建组
subscription.AddItems(AccessAdapter.GetOPCItemList().ToArray());
////注册回调事件
//subscription.DataChanged += new Opc.Da.DataChangedEventHandler(this.OnDataChange);
}
/// <summary>
/// Active/Deactive the OPC Server as the "auto" mode.
/// When timer reaches, update the data from OPC server automatically.
/// </summary>
public void AdviseDeadvise()
{
if (Subscription == null)
{
return;
}
Advised = !Advised;
try
{
var state = new Opc.Da.SubscriptionState {
Active = Advised
};
Subscription.ModifyState((int)Opc.Da.StateMask.Active, state);
}
catch (Exception e)
{
throw e;
}
}
private void User_Program_Select_Operation_Load(object sender, EventArgs e)
{
BrakePressID();
OPCServer = new Opc.Da.Server(OPCFactory, null);
//.Url = new Opc.URL("opcda://OHN66OPC/Matrikon.OPC.AllenBradleyPLCs.1");
OPCServer.Url = new Opc.URL("opcda://OHN66OPC/Kepware.KEPServerEX.V6");
//OPCServer.Url = new Opc.URL("opcda://OHN7009/Matrikon.OPC.AllenBradleyPLCs.1");
OPCServer.Connect();
OperationSelection_StateRead = new Opc.Da.SubscriptionState();
OperationSelection_StateRead.Name = "153R_Spotweld";
OperationSelection_StateRead.UpdateRate = 200;
OperationSelection_StateRead.Active = true;
OperationSelection_Read = (Opc.Da.Subscription)OPCServer.CreateSubscription(OperationSelection_StateRead);
OperationSelection_StateWrite = new Opc.Da.SubscriptionState();
OperationSelection_StateWrite.Name = "PB_OperationSelect_WriteGroup";
OperationSelection_StateWrite.Active = false;
OperationSelection_Write = (Opc.Da.Subscription)OPCServer.CreateSubscription(OperationSelection_StateWrite);
}
/// <summary>
/// 设定组（订阅者）状态
/// </summary>
public void SetGroup()
{
state = new Opc.Da.SubscriptionState();
//组名
state.Name = "IOTPLC";
//服务器给该组分配的句柄。
state.ServerHandle = null;
//客户端给该组分配的句柄。
state.ClientHandle = Guid.NewGuid().ToString();
//激活该组。
state.Active = true;
//刷新频率为1秒。
state.UpdateRate = 100;
// 死区值，设为0时，服务器端该组内任何数据变化都通知组。
state.Deadband = 0;
//不设置地区值。
state.Locale = null;
//添加组
subscription = (Opc.Da.Subscription)m_server.CreateSubscription(state);
}
/// <summary>
/// 建立订阅
/// </summary>
public void CreateSubscription()
{
try
{
subsState = new SubscriptionState();
subsState.Name = "OPCNJ"; //组名
subsState.ServerHandle = null; //服务器给该组分配的句柄。
subsState.ClientHandle = Guid.NewGuid().ToString(); //客户端给该组分配的句柄
subsState.Active = true;
subsState.UpdateRate = 100; //刷新频率为1秒。
subsState.Deadband = 0; // 死区值，设为0时，服务器端该组内任何数据变化都通知组。
subsState.Locale = null; //不设置地区值。
subscription = (Opc.Da.Subscription)m_Server.CreateSubscription(subsState);
Item[] items = new Item[10];
for (int i = 0; i < items.Length; i++)
{
items[i] = new Item();
items[i].ClientHandle = Guid.NewGuid().ToString(); //客户端给该数据项分配的句柄。
items[i].ItemPath = null; //该数据项在服务器中的路径
}
items[0].ItemName = IEGInterface.Properties.Settings.Default.strSendBuffer;
items[1].ItemName = IEGInterface.Properties.Settings.Default.strSendFlag;
items[2].ItemName = IEGInterface.Properties.Settings.Default.strReceiveBuffer;
items[3].ItemName = IEGInterface.Properties.Settings.Default.strReceiveFlag;
items[4].ItemName = IEGInterface.Properties.Settings.Default.strEtv1Alarms;
items[5].ItemName = IEGInterface.Properties.Settings.Default.strEtv2Alarms;
items[6].ItemName = IEGInterface.Properties.Settings.Default.strHall1Alarms;
items[7].ItemName = IEGInterface.Properties.Settings.Default.strHall2Alarms;
items[8].ItemName = IEGInterface.Properties.Settings.Default.strHall3Alarms;
items[9].ItemName = IEGInterface.Properties.Settings.Default.strHall4Alarms;
subscription.AddItems(items);
}
catch (Exception ex)
{
throw new Exception("OPC建立订阅(CreateSubscription)异常：" + ex.ToString());
}
}
public override bool Initialize(string connectionString, int newPollerId)
{
bool result = false;
ConnString = connectionString;
try
{
PollerId = newPollerId;
url = new Opc.URL(connectionString);
server = null;
var fact = new OpcCom.Factory();
server = new Opc.Da.Server(fact, null);
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
server.ServerShutdown += Shutdown;
_tags = new List <Opc.Da.Item>();
Browse();
_groupWriteState = new Opc.Da.SubscriptionState();
_groupWriteState.Name = "GroupWrite";
_groupWriteState.Active = false;
groupWrite = (Opc.Da.Subscription)server.CreateSubscription(_groupWriteState);
Activated = true;
logger.Logged("Info", "Состояние сервера: " + server.GetStatus().StatusInfo, "", "");
result = true;
}
catch (Exception ex)
{
logger.Logged("Error", "Не удалось подключиться к OPC DA серверу " + connectionString + ": " + ex.Message, "", "");
// logger.Logged("Warn", "Повторная попытка через 5 секунд...", "", "");
//Thread.Sleep(5000);
}
return(result);
}
// Form Loads.
// Checks Spot Weld Computer.
// Connects to OPC Server
private void User_Program_Reset_Weld_Count_Dialog_Load(object sender, EventArgs e)
{
SpotWeldID();
OPCServer = new Opc.Da.Server(OPCFactory, null);
OPCServer.Url = new Opc.URL("opcda://OHN66OPC/Kepware.KEPServerEX.V6");
OPCServer.Connect();
ResetWeldCount_StateRead = new Opc.Da.SubscriptionState();
ResetWeldCount_StateRead.Name = "Reset_Weld_Count_Spotweld";
ResetWeldCount_StateRead.UpdateRate = 1000;
ResetWeldCount_StateRead.Active = true;
ResetWeldCount_Read = (Opc.Da.Subscription)OPCServer.CreateSubscription(ResetWeldCount_StateRead);
ResetWeldCount_StateWrite = new Opc.Da.SubscriptionState();
ResetWeldCount_StateWrite.Name = "PB_Reset_Part_Weld_Count_On";
ResetWeldCount_StateWrite.Active = true;
ResetWeldCount_Write = (Opc.Da.Subscription)OPCServer.CreateSubscription(ResetWeldCount_StateWrite);
ResetWeldCount_Off_StateWrite = new Opc.Da.SubscriptionState();
ResetWeldCount_Off_StateWrite.Name = "PB_Reset_Part_Weld_Count_Off";
ResetWeldCount_Off_StateWrite.Active = true;
ResetWeldCount_Off_Write = (Opc.Da.Subscription)OPCServer.CreateSubscription(ResetWeldCount_Off_StateWrite);
}
public void ConnectToServer()
{
try
{
//url = new Opc.URL("opcda://MUHUMTHA/Kepware.KEPServerEX.V6");
//url = new Opc.URL("opcda://IAPENG1/RSLinx OPC Server");
//REMOTE OPC CONNECTION
url = new Opc.URL("opcda://MUHUMTHA/RSLinx OPC Server.MUHUNTHANPC");
server = new Opc.Da.Server(fact, url);
System.Net.NetworkCredential networkCredential = new System.Net.NetworkCredential();
Opc.ConnectData connecteddata = new Opc.ConnectData(networkCredential);
server.Connect(url, connecteddata);
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group";
groupState.UpdateRate = 1; // this isthe time between every reads from OPC server
groupState.Active = true; //this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(UpdateTagData); //callback when the data are readed
//Opc.Da.Item[] items_read = groupRead.AddItems(createSomeTags());
Opc.Da.Item[] items_read = groupRead.AddItems(createSomeTags());
// Create a write group
//groupStateWrite = new Opc.Da.SubscriptionState();
//groupStateWrite.Name = "Group_Write";
//groupStateWrite.UpdateRate = 1000;
//groupStateWrite.Active = false;//not needed to read if you want to write only
//groupWrite = (Opc.Da.Subscription)server.CreateSubscription(groupStateWrite);
//groupWrite.DataChanged += new Opc.Da.DataChangedEventHandler(ReadCompleted);
Global.flag1 = true;
}
catch (Exception E)
{
Console.WriteLine(E.Message);
}
}
/// <summary>
/// 그룹추가.
/// </summary>
/// <param name="name">group name</param>
/// <param name="type">read 0, write 1</param>
/// <returns>추가 성공한 group</returns>
public OPCSubscription AddGroup(string name, int type)
{
bool duplicated = false;
OPCSubscription result = null;
if (type == 0)
{
for (int i = 0; i < this.ReadSubscriptions.Count; i++)
{
if (this.ReadSubscriptions[i].Name.Equals(name))
{
duplicated = true;
result = this.ReadSubscriptions[i];
break;
}
}
}
else if (type == 1)
{
for (int i = 0; i < this.WriteSubscriptions.Count; i++)
{
if (this.WriteSubscriptions[i].Name.Equals(name))
{
duplicated = true;
result = this.WriteSubscriptions[i];
break;
}
}
}
//중복이 아니라면
if (duplicated == false)
{
SubscriptionState subscriptionstate = new SubscriptionState()
{
Active = true,
Deadband = 0,
KeepAlive = 0,
UpdateRate = 1000,
ClientHandle = Guid.NewGuid().ToString(),
Name = name
};
//현재 선택된 서버에 Group을 생성한다.
Opc.Da.Subscription subscription = (Opc.Da.Subscription)Server.CreateSubscription(subscriptionstate);
OPCSubscription newgroup = new OPCSubscription()
{
Subscription = subscription
};
if (type == 0)
{
this.ReadSubscriptions.Add(newgroup);
}
else if (type == 1)
{
this.WriteSubscriptions.Add(newgroup);
}
result = newgroup;
}
return(result);
}
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();
}
}
public override void Add(string itemName)
{
lock (_thisLock)
{
try
{
OpcAddress addr = Find(itemName);
if (addr == null)
{
string[] itemIdSplited = itemName.Split(']');
string[] addressSplited;
string topic = "";
//Encontra o nome do topico
if (itemName.Contains(']'))
{
topic = itemName.Split(']')[0].Substring(1);
}
if (itemIdSplited.Length > 1)
{
addressSplited = itemIdSplited[1].Split(':');
}
else
{
itemIdSplited = itemName.Split('.');
addressSplited = itemIdSplited[2].Split(':');
}
Opc.Da.Subscription opcDaGroup = null;
foreach (Opc.Da.Subscription opcDaGrp in _opcDaServer.Subscriptions)
{
if (opcDaGrp.Name == topic + addressSplited[0])
{
opcDaGroup = opcDaGrp;
}
}
if (opcDaGroup == null)
{
Opc.Da.SubscriptionState groupState = new Opc.Da.SubscriptionState();
groupState.ClientHandle = Guid.NewGuid().ToString();
groupState.Name = topic + addressSplited[0];
// groupState.UpdateRate = 250;
opcDaGroup = (Opc.Da.Subscription)_opcDaServer.CreateSubscription(groupState);
//opcDaGroup.DataChanged += new Opc.Da.DataChangedEventHandler(OpcDataChanged);
opcDaGroup.DataChanged += delegate(object subscriptionHandle, object requestHandle, ItemValueResult[] values)
{
// BackgroundWorker back = new BackgroundWorker();
// back.DoWork += delegate(object sender, DoWorkEventArgs e)
// {
// foreach (Opc.Da.ItemValueResult ivr in values)
// {
// OpcAddress adr = Find(ivr.ItemName);
// adr.SetValue(ivr.Value.ToString());
// OnDataChanged(new DataChangedEventArgs(ivr.ItemName, ivr.Value));
// }
// };
// back.RunWorkerAsync();
foreach (Opc.Da.ItemValueResult ivr in values)
{
OpcAddress adr = Find(ivr.ItemName);
adr.SetValue(ivr.Value.ToString());
OnDataChanged(new DataChangedEventArgs(ivr.ItemName, ivr.Value));
}
};
}
Opc.Da.Item opcDaItem = new Opc.Da.Item();
opcDaItem.ClientHandle = Guid.NewGuid().ToString();
opcDaItem.ItemName = itemName;
opcDaItem.MaxAgeSpecified = true;
opcDaItem.MaxAge = 100;
opcDaItem.SamplingRateSpecified = true;
opcDaItem.SamplingRate = 10;
opcDaGroup.AddItems(new Opc.Da.Item[] { opcDaItem });
addr = new OpcAddress(opcDaItem, opcDaGroup);
_addrList.Add(addr);
}
return;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
}
}
/// <summary>
/// 创建订阅，并添加Items
/// </summary>
private void CreatSubscription(List <string> lstConnect)
{
try
{
if (null == lstConnect)// || null != m_subscription)
{
return;
}
if (null != m_subscription)
{
if (0 < m_subscription.Items.Count() && lstConnect.Contains(m_subscription.Items.First().ItemName))
{
return;
}
#region 添加items
Item[] itemNames1 = new Item[lstConnect.Count];
string[] fConnects1 = lstConnect.ToArray();
for (int i = 0; i < itemNames1.Length; i++)
{
itemNames1[i] = new Item(); // 创建一个项Item对象。
itemNames1[i].ClientHandle = Guid.NewGuid().ToString(); // 客户端给该数据项分配的句柄。
itemNames1[i].ItemPath = null; // 该数据项在服务器中的路径。
itemNames1[i].ItemName = fConnects1[i]; // 该数据项在服务器中定义的名字
ItemValueResult itemValue = new ItemValueResult();
itemValue.ItemName = fConnects1[i]; // 该数据项在服务器中定义的名字
m_lstItemValueResult.Add(itemValue);
}
#endregion
m_subscription.AddItems(itemNames1);
return;
}
m_sendState = new SubscriptionState();
m_sendState.Name = m_groupName; // 组名
m_sendState.ServerHandle = null; // 服务器给该组分配的句柄。
m_sendState.ClientHandle = Guid.NewGuid().ToString(); // 客户端给该组分配的句柄。
m_sendState.Active = true; // 激活该组。
m_sendState.UpdateRate = m_updateRate; // 刷新频率
m_sendState.Deadband = 0; // 死区值，设为0时，服务器端该组内任何数据变化都通知组。
m_sendState.Locale = null; // 不设置地区值。
m_subscription = (Opc.Da.Subscription)m_server.CreateSubscription(m_sendState);
#region 添加items
Item[] itemNames = new Item[lstConnect.Count];
string[] fConnects = lstConnect.ToArray();
for (int i = 0; i < itemNames.Length; i++)
{
itemNames[i] = new Item(); // 创建一个项Item对象。
itemNames[i].ClientHandle = Guid.NewGuid().ToString(); // 客户端给该数据项分配的句柄。
itemNames[i].ItemPath = null; // 该数据项在服务器中的路径。
itemNames[i].ItemName = fConnects[i]; // 该数据项在服务器中定义的名字
ItemValueResult itemValue = new ItemValueResult();
itemValue.ItemName = fConnects[i]; // 该数据项在服务器中定义的名字
m_lstItemValueResult.Add(itemValue);
}
#endregion
m_subscription.AddItems(itemNames);
}
catch (Exception ex)
{
CLOGException.Trace("函数CommunicationLib.COPCAccessTimer.CreatSubscription 异常", CBaseMethods.MyBase.GetExceptionInfo(ex));
}
}
/// <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();
}
/// <summary>
/// OPC连接
/// </summary>
/// <param name="barcode"></param>
public void OPC_connect()
{
#region 连接OPCSever
//if (!OpcGroupClassm_server.IsConnected) { return; }
//获取本地的IP地址
var addr = "192.168.3.89";
OpcServerName = addr + ".KEPware.KEPServerEx.V6";
Opc.Server[] servers = OpcGroupClassm_discovery.GetAvailableServers(Specification.COM_DA_20, addr, null);//查询服务器
if (servers != null)
{
foreach (Opc.Da.Server server in servers)
{
//server即为需要连接的OPC数据存取服务器
if (String.Compare(server.Name, OpcServerName, true) == 0) //true表示忽略大小写
{
OpcGroupClassm_server = server; //建立连接
break;
}
}
}
//连接服务器
if (OpcGroupClassm_server != null)
{
OpcGroupClassm_server.Connect(); //非空连接服务器
}
#endregion
#region 往OPCSever中添加Group
OpcGroupClassstate = new Opc.Da.SubscriptionState(); //组（订阅者）状态，相当于OPC规范中组的参数
OpcGroupClassstate.Name = "OpcGroupClasss"; //组名
OpcGroupClassstate.ServerHandle = null; //服务器给该组分配的句柄。
OpcGroupClassstate.ClientHandle = Guid.NewGuid().ToString(); //客户端给该组分配的句柄
OpcGroupClassstate.Active = true; //激活该组
OpcGroupClassstate.UpdateRate = 100; //刷新频率为1秒
OpcGroupClassstate.Deadband = 0; // 死区值，设为0时，服务器端该组内任何数据变化都通知组
OpcGroupClassstate.Locale = null; //不设置地区值
OpcGroupClasssubscription = (Opc.Da.Subscription)OpcGroupClassm_server.CreateSubscription(OpcGroupClassstate); //添加组
//添加监控地址
#endregion
#region 往Group添加 Items
try
{
List <Item> items = new List <Item>();
foreach (var adress in dicTest)
{
var item = new Item()
{
ClientHandle = Guid.NewGuid().ToString(), //客户端给该数据项分配的句柄。
ItemName = adress.Key //该数据项在服务器中的名字
};
items.Add(item);
}
OpcGroupClasssubscription.AddItems(items.ToArray());
}
catch (Exception ex)
{
MessageBox.Show("初始化监控地址失败：" + ex.Message, "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
OpcGroupClasssubscription.DataChanged += new DataChangedEventHandler(OnDataChange);
//Thread.Sleep(1000);
#endregion
}
