private void ConnectionAgent()
{
while (!_connectionEnd.WaitOne(0) && !Connected)
try
{
URL url = new URL(_OpcSection.Server.Name);
_Server = new Opc.Da.Server(new OpcCom.Factory(), null);
_Server.Connect(url, new ConnectData(new NetworkCredential()));
_groupRead = (Subscription)_Server.CreateSubscription(_GroupReadState);
_groupWrite = (Subscription)_Server.CreateSubscription(_GroupWriteState);
for (int i = 0; i < _OpcSection.Server.TagGroup.GetElement(_TagGroup).Tags.Count; i++)
{
_Items[i] = new Opc.Da.Item();
//_Items[i].ItemName = String.Format("{0}{1}", _OpcSection.Server.Channel, _OpcSection.Server.TagGroup.GetElement(_TagGroup).Tags[i].Name);
_Items[i].ItemName = _OpcSection.Server.Channel + "." + _OpcSection.Server.Device + "." + _OpcSection.Server.TagGroup.GetElement(_TagGroup).Tags[i].Name;
//string itmNam = String.Format("{0}]{1}", _OpcSection.Server.Channel, _OpcSection.Server.TagGroup.GetElement(_TagGroup).Tags[i].Name);
_logger.LogInfo(/*Mtd*/ ": recognized element " + _Items[i].ItemName);
}
_Items = _groupRead.AddItems(_Items);
_groupRead.DataChanged += new DataChangedEventHandler(Group_DataChanged);
}
catch (Exception ex) { _logger.LogError(ex); }
}
private Int16 GetTagCanonicalType(string itemName)
{
const int ItemCanonicalDataTypeProperty = 1;
TreeNode rootNode = uiGroupsTab_AllFoldersTreeView.SelectedNode;
while (rootNode.Parent != null)
{
rootNode = rootNode.Parent;
}
var opcServer = Settings.OpcServers.Where(os => rootNode.FullPath == os.ServerName).Single();
string urlstring = opcServer.URL;
Server server = new Server(new Factory(), new URL(urlstring));
server.Connect();
ItemIdentifier [] itemIdentifiers = new ItemIdentifier[] {new ItemIdentifier(itemName)};
PropertyID[] propertyIDs = new PropertyID[] { new PropertyID(ItemCanonicalDataTypeProperty) };
var result = server.GetProperties(itemIdentifiers, propertyIDs, true);
server.Disconnect();
var resultType = result[0][0].Value.GetType();
PropertyInfo nameProperty = resultType.GetProperty("Name");
string name = nameProperty.GetValue(result[0][0].Value, null) as string;
switch (name.ToLower())
{
case "string":
case "char":
return 0;
case "int16":
case "int32":
case "int64":
case "uint16":
case "uint32":
case "uint64":
return 1;
case "boolean":
return 2;
case "decimal":
case "double":
return 3;
case "datetime":
case "datetimeoffset":
return 4;
default:
return 0;
}
}
public static void TestConnection (string connection)
{
URL url = new URL(connection);
Opc.Da.Server server = new Opc.Da.Server(new OpcCom.Factory(), null);
server.Connect(url, new ConnectData(new NetworkCredential()));
}
/// <summary>
/// Fetches the set of data filters from the server.
/// </summary>
public ComplexItem[] GetDataFilters(Opc.Da.Server server)
{
// not a valid operation for data filter items.
if (m_unfilteredItemID != null)
{
return(null);
}
// data filters not supported by the item.
if (m_filterItem == null)
{
return(null);
}
BrowsePosition position = null;
try
{
// browse any existing filter instances.
BrowseFilters filters = new BrowseFilters();
filters.ElementNameFilter = null;
filters.BrowseFilter = browseFilter.item;
filters.ReturnAllProperties = false;
filters.PropertyIDs = CPX_PROPERTIES;
filters.ReturnPropertyValues = true;
BrowseElement[] elements = server.Browse(m_filterItem, filters, out position);
// nothing found.
if (elements == null || elements.Length == 0)
{
return(new ComplexItem[0]);
}
// contruct an array of complex data items for each available data filter.
ArrayList dataFilters = new ArrayList(elements.Length);
foreach (BrowseElement element in elements)
{
ComplexItem item = new ComplexItem();
if (item.Init(element))
{
dataFilters.Add(item);
}
}
// return the set of available data filters.
return((ComplexItem[])dataFilters.ToArray(typeof(ComplexItem)));
}
finally
{
if (position != null)
{
position.Dispose();
position = null;
}
}
}
/// <summary>
/// Reads the current complex data item properties from the server.
/// </summary>
public void Update(Opc.Da.Server server)
{
// clear the existing state.
Clear();
// check if the item supports any of the complex data properties.
ItemPropertyCollection[] results = server.GetProperties(
new ItemIdentifier[] { this },
CPX_PROPERTIES,
true);
// unexpected return value.
if (results == null || results.Length != 1)
{
throw new ApplicationException("Unexpected results returned from server.");
}
// update object.
if (!Init((ItemProperty[])results[0].ToArray(typeof(ItemProperty))))
{
throw new ApplicationException("Not a valid complex item.");
}
// check if data filters are suppported for the item.
GetDataFilterItem(server);
}
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);
}
}
public RFID ReadTagsRFID(bool identify_card)
{
try
{
Opc.Da.Server server = null;
OpcCom.Factory fact = new OpcCom.Factory();
server = new Opc.Da.Server(fact, null);
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
//
Opc.Da.Subscription group;
Opc.Da.SubscriptionState groupState = new Opc.Da.SubscriptionState();
groupState.Name = "RFID";
groupState.Active = true;
group = (Opc.Da.Subscription)server.CreateSubscription(groupState);
//добавление айтемов в группу
Opc.Da.Item[] items = new Opc.Da.Item[2];
items[0] = new Opc.Da.Item();
items[0].ItemName = "ZREADER.RFID_reader.part1";
items[1] = new Opc.Da.Item();
items[1].ItemName = "ZREADER.RFID_reader.part2";
items = group.AddItems(items);
//List<oldRFID> result_list = new List<oldRFID>();
ItemValueResult[] res = group.Read(items);
RFID rfid = new RFID();
EFazsCards ef_card = new EFazsCards();
if (res != null)
{
//UInt16? part1 = res[0].Value != null ? res[0].Value as UInt16? : 37;
//UInt16? part2 = res[1].Value != null ? res[1].Value as UInt16? : 50907;
UInt16?part1 = res[0].Value != null ? res[0].Value as UInt16? : null;
UInt16?part2 = res[1].Value != null ? res[1].Value as UInt16? : null;
if (part1 != null && part2 != null)
{
rfid.part1 = part1;
rfid.part2 = part2;
if (identify_card)
{
int code1 = int.Parse(part1.ToString());
int code2 = int.Parse(part2.ToString());
String.Format("Определим ID=карты code1={0}, code2={1}", code1, code2).SaveInformation();
azsCards card = ef_card.Get().Where(c => c.Number == (code1).ToString("00") + "," + (code2).ToString("00000")).FirstOrDefault();
if (card == null)
{
card = ef_card.Get().Where(c => c.Number == (code1).ToString("000") + "," + (code2).ToString("00000")).FirstOrDefault();
}
rfid.card = card;
}
}
}
return(rfid);
}
catch (Exception e)
{
String.Format("Ошибка выполнения метода ReadTagsRFID(identify_card={0})", identify_card).SaveError(e);
return(null);
}
}
static void Main(string[] args)
{
Opc.Da.Server server = new Opc.Da.Server(new OpcCom.Factory(), new URL
{
Path = @"Matrikon.OPC.Simulation.1",
Scheme = Opc.UrlScheme.DA
});
server.Connect();
//Write Values
int counter = 1;
ItemValue item = new ItemValue("Bucket Brigade.TestWrite");
var itemList = new List <ItemValue>();
itemList.Add(item);
Item item_read = new Item();
item_read.ItemName = "Bucket Brigade.TestWrite";
item_read.Active = true;
List <Item> readItems = new List <Item>();
readItems.Add(item_read);
while (true)
{
item.Value = "Testing" + counter;
server.Write(itemList.ToArray());
counter++;
var result = server.Read(readItems.ToArray());
foreach (var value in result)
{
System.Console.WriteLine(value.ItemName + " : " + value.Value.ToString());
}
}
}
public ItemIdentifier ShowDialog(Opc.Da.Server server)
{
ItemIdentifier result;
try
{
if (server == null)
{
throw new System.ArgumentNullException("server");
}
this.m_server = server;
this.m_itemID = null;
BrowseFilters browseFilters = new BrowseFilters();
browseFilters.ReturnAllProperties = false;
browseFilters.ReturnPropertyValues = false;
this.BrowseCTRL.ShowSingleServer(this.m_server, browseFilters);
this.PropertiesCTRL.Initialize(null);
if (base.ShowDialog() != System.Windows.Forms.DialogResult.OK)
{
result = null;
}
else
{
result = this.m_itemID;
}
}
finally
{
this.BrowseCTRL.Clear();
}
return(result);
}
/// <summary>
/// Updates a data filter.
/// </summary>
public void UpdateDataFilter(Opc.Da.Server server, string filterValue)
{
// not a valid operation for non data filter items.
if (m_unfilteredItemID == null)
{
throw new ApplicationException("Cannot update the data filter for this item.");
}
ItemValue item = new ItemValue(this);
// create the value to write.
item.Value = filterValue;
item.Quality = Quality.Bad;
item.QualitySpecified = false;
item.Timestamp = DateTime.MinValue;
item.TimestampSpecified = false;
// write the value.
IdentifiedResult[] result = server.Write(new ItemValue[] { item });
if (result == null || result.Length == 0)
{
throw new ApplicationException("Unexpected result from server.");
}
if (result[0].ResultID.Failed())
{
throw new ApplicationException("Could not update data filter.");
}
// update locale copy of the filter value.
m_filterValue = filterValue;
}
//Connect to server
public override void Connect(string host, string serverName)
{
var url = new URL("opcda://" + host + "/" + serverName);
Server = new Opc.Da.Server(new OpcCom.Factory(), url);
Server.Connect();
}
public static void TestConnection(string connection)
{
URL url = new URL(connection);
Opc.Da.Server server = new Opc.Da.Server(new OpcCom.Factory(), null);
server.Connect(url, new ConnectData(new NetworkCredential()));
}
/// <summary>
/// 连接OPC
/// </summary>
/// <returns></returns>
public bool Connect(string opcServerName, string opcServerIp)
{
try
{
Opc.Server[] serverArray = new ServerEnumerator().GetAvailableServers(Specification.COM_DA_20, opcServerIp, null);
if (serverArray != null)
{
Opc.Server server = serverArray.Where(a => a.Name == opcServerName).FirstOrDefault();
if (server != null)
{
server.Connect();
this.Server = (Opc.Da.Server)server;
return(true);
}
}
}
catch (Exception ex) { if (OnScanError != null)
{
OnScanError(ex);
}
}
this.Close();
return(false);
}
public Boolean Connect()
{
// Create a server object and connect to the TwinCATOpcServer
Opc.URL url = new Opc.URL(opcServerEndpoint);
OpcCom.Factory fact = new OpcCom.Factory();
server = new Opc.Da.Server(fact, null);
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
// Create a group
Opc.Da.Subscription group;
foreach (BrowsableGroup BrowsableGroup in browsableGroups)
{
Opc.Da.SubscriptionState groupState = new SubscriptionState();
groupState.Name = BrowsableGroup.GroupName;
groupState.Active = true;
group = (Opc.Da.Subscription)server.CreateSubscription(groupState);
Opc.Da.Item[] items = BrowsableGroup.produceItemsFromNodes();
items = group.AddItems(items);
EnableDataChangedCallback(group);
//todo:
//EnableDataReadCallback(group);
//todo:
//EnableDataWriteCallback(group, BrowsableGroup.produceValueToWrite(items[0],34.0) );
}
return(false);
}
/// <summary>
/// Adds the row.
/// </summary>
/// <param name="credential">The credential.</param>
/// <param name="server">The server.</param>
/// <returns>ServersTableRow.</returns>
public ServersTableRow AddRow(ConnectData credential, Opc.Da.Server server)
{
ServersTableRow mRow = this.NewServersTableRow();
mRow.LicenseKey = credential.LicenseKey;
if (credential.Credentials != null)
{
mRow.Domain = credential.Credentials.Domain;
mRow.Password = credential.Credentials.Password;
mRow.UserName = credential.Credentials.UserName;
}
ServerStatus status = server.GetStatus();
mRow.CurrentTime = status.CurrentTime;
mRow.ProductVersion = status.ProductVersion;
mRow.SpecificationDescription = server.PreferedSpecyfication.Description;
mRow.SpecificationID = server.PreferedSpecyfication.ID;
mRow.URLString = server.Url.ToString();
mRow.VendorInfo = status.VendorInfo;
this.AddServersTableRow(mRow);
foreach (var loc in server.SupportedLocales)
{
((AddressSpaceDataBase)this.DataSet).LocalesTable.AddRow(mRow.ID, loc);
}
return(mRow);
}
private void recursiveTreeFill(Server server, string itemId)
{
BrowsePosition position;
BrowseFilters filters = new BrowseFilters()
{
BrowseFilter = browseFilter.all
};
ItemIdentifier item = (itemId == null) ? new ItemIdentifier() : new ItemIdentifier(itemId);
BrowseElement[] browseElements = server.Browse(item, filters, out position);
repository.Add(itemId, browseElements);
for (int index = 0; index < browseElements.Length; index++)
{
BrowseElement browsedElement = browseElements[index];
string itemName = browsedElement.ItemName;
if (browsedElement.HasChildren)
{
recursiveTreeFill(server, itemName);
}
else
{
if (!repository.ContainsKey(itemId))
{
repository.Add(itemId, new BrowseElement[] { });
}
}
}
}
public OpcIoDevice(string options)
{
_url = new URL(options);
var fact = new OpcCom.Factory();
_server = new Server(fact, null);
}
/*********************************************************************************************************************
*
* 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);
}
}
/// <summary>
/// Tries to connect to the server.
/// </summary>
public bool Connect(string serverurl)
{
if (String.IsNullOrEmpty(serverurl))
{
throw new Exception(String.Format("Server url '{0}' is not valid", serverurl));
}
Opc.URL url = new Opc.URL(serverurl);
OpcCom.Factory fact = new OpcCom.Factory();
Server = new Opc.Da.Server(fact, null);
try
{
Server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
}
catch (Exception ex)
{
_error.Append(ex.ToString());
if (ex.InnerException != null)
{
_error.Append(ex.InnerException.ToString());
}
return(false);
}
return(true);
}
public void WithGroupOfItems(Opc.Da.Server server, string groupName, IEnumerable <OpisenseOpcItem> opcItems, Action <OpcDaClientConnector, Subscription> action, Action <Exception> onError = null)
{
if (opcItems is null)
{
return;
}
var opcItemsList = opcItems.ToList();
if (!opcItemsList.Any())
{
return;
}
var groupState = new SubscriptionState
{
Name = groupName,
Active = false
};
using (var opcGroup = server.CreateSubscription(groupState))
{
//There is a bug in the library, ClientHandle is not propagated with item results
var subscriptionItems = opcItemsList.Select(i => new Item {
ItemName = i.OpcItemName, ClientHandle = i.VariableId
});
opcGroup.AddItems(subscriptionItems.ToArray());
action(this, opcGroup as Subscription);
}
}
/// <summary>
/// OPC建立连接
/// </summary>
public void mOPC_ConnToServer()
{
try
{
string hostName = IEGInterface.Properties.Settings.Default.MachineName;
//查询服务器
m_Server = null;
Opc.Server[] servers = m_Discovery.GetAvailableServers(Specification.COM_DA_20, hostName, null);
if (servers != null)
{
foreach (Opc.Da.Server sr in servers)
{
//获取需要连接的OPC数据存取服务器
if (String.Compare(sr.Name, hostName + ".OPC.SimaticNET", true) == 0)
{
m_Server = sr;
break;
}
}
}
if (m_Server != null)
{
m_Server.Connect();
}
}
catch (Exception ex)
{
throw new Exception("OPC连接函数（mOPC_ConnToServer）异常：" + ex.ToString());
}
}
public void UpdateDataFilter(Opc.Da.Server server, string filterValue)
{
if (this.m_unfilteredItemID == null)
{
throw new ApplicationException("Cannot update the data filter for this item.");
}
ItemValue value2 = new ItemValue(this)
{
Value = filterValue,
Quality = Quality.Bad,
QualitySpecified = false,
Timestamp = DateTime.MinValue,
TimestampSpecified = false
};
IdentifiedResult[] resultArray = server.Write(new ItemValue[] { value2 });
if ((resultArray == null) || (resultArray.Length == 0))
{
throw new ApplicationException("Unexpected result from server.");
}
if (resultArray[0].ResultID.Failed())
{
throw new ApplicationException("Could not update data filter.");
}
this.m_filterValue = filterValue;
}
//***************************************************************
//* Create the Data Link Layer Instances
//* if the IP Address is the same, then resuse a common instance
//***************************************************************
public bool Connection()
{
try
{
if (DLL == null)
{
if (DLL != null && DLL.IsConnected)
{
DLL.Disconnect();
}
DLL = new Server(fact, null)
{
Url = new URL(m_OPCServerPath + "/" + OPCServer)
};
DLL.Connect();
if (DLL.IsConnected)
{
EventscadaException?.Invoke(GetType().Name, "ConnectedSuccess");
IsConnected = true;
}
else
{
EventscadaException?.Invoke(GetType().Name, "ConnectedFailed");
IsConnected = false;
}
}
}
catch (Exception)
{
EventscadaException?.Invoke(GetType().Name, "ConnectedFailed");
IsConnected = false;
}
return(IsConnected);
}
private void ConnectionAgent()
{
while (!_connectionEnd.WaitOne(0) && !Connected)
{
try
{
URL url = new URL(_OpcSection.Server.Name);
_Server = new Opc.Da.Server(new OpcCom.Factory(), null);
_Server.Connect(url, new ConnectData(new NetworkCredential()));
_groupRead = (Subscription)_Server.CreateSubscription(_GroupReadState);
_groupWrite = (Subscription)_Server.CreateSubscription(_GroupWriteState);
for (int i = 0; i < _OpcSection.Server.TagGroup.GetElement(_TagGroup).Tags.Count; i++)
{
_Items[i] = new Opc.Da.Item();
//_Items[i].ItemName = String.Format("{0}{1}", _OpcSection.Server.Channel, _OpcSection.Server.TagGroup.GetElement(_TagGroup).Tags[i].Name);
_Items[i].ItemName = _OpcSection.Server.Channel + "." + _OpcSection.Server.Device + "." + _OpcSection.Server.TagGroup.GetElement(_TagGroup).Tags[i].Name;
//string itmNam = String.Format("{0}]{1}", _OpcSection.Server.Channel, _OpcSection.Server.TagGroup.GetElement(_TagGroup).Tags[i].Name);
_logger.LogInfo(/*Mtd*/ ": recognized element " + _Items[i].ItemName);
}
_Items = _groupRead.AddItems(_Items);
_groupRead.DataChanged += new DataChangedEventHandler(Group_DataChanged);
}
catch (Exception ex) { _logger.LogError(ex); }
}
}
private void BrowseServers(System.Windows.Forms.TreeNode node)
{
try
{
node.Nodes.Clear();
string host = null;
if (node != this.m_localServers)
{
host = node.Text;
}
ConnectData connectData = this.FindConnectData(node);
Opc.Server[] availableServers = this.m_discovery.GetAvailableServers(this.m_specification, host, connectData);
if (availableServers != null)
{
Opc.Server[] array = availableServers;
for (int i = 0; i < array.Length; i++)
{
Opc.Da.Server server = (Opc.Da.Server)array[i];
System.Windows.Forms.TreeNode treeNode = new System.Windows.Forms.TreeNode(server.Name);
treeNode.ImageIndex = (treeNode.SelectedImageIndex = Resources.IMAGE_LOCAL_SERVER);
treeNode.Tag = server;
node.Nodes.Add(treeNode);
}
node.Expand();
}
}
catch (System.Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
}
}
public Connection(string aServerUrl, Opc.Da.Server aServer)
{
lockRoot = new object();
active = true;
serverUrl = aServerUrl;
server = aServer;
Ping();
}
public rextoth()
{
setStringValue();
if (opcServer == null)
{
opcServer = GetOpcServer();
}
}
public static ItemValueResult[] RsLinx_OPC_Client_Read_Array(string ItemName, int Length)
{
try
{
//Creo un istanza di OPC.server
Opc.Da.Server server;
//Parametro necessario alla connect
OpcCom.Factory fact = new OpcCom.Factory();
//Creo un istanza di Sottoscrizione
Opc.Da.Subscription groupRead;
//Creo un istanza di SubscriptionState, utile per controllare lo stato della sottoscrizione
Opc.Da.SubscriptionState groupState;
//Creo un array di OPC.Da.Item
Opc.Da.Item[] items = new Opc.Da.Item[1];
//Setto factory e url del server, come url utilizzo quello del RSLinx OPC Server
server = new Opc.Da.Server(fact, null);
server.Url = new Opc.URL(Url);
//Connetto il server
server.Connect();
//Istanzio la sottoscrizione
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group";
groupState.UpdateRate = UpdateRate; //Setto il tempo di Refresh del gruppo
groupState.Active = true; //Questo valore deve essere true se voglio aver la possibilità di leggere
//Creo il gruppo sul server
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
//Istanzio l'Item
items[0] = new Opc.Da.Item();
//Gli do il nome (Rockwell utilizza questa formzattazione dei nomi per gli array
//[NomeTopicOPC]NomeTag,LDimensioneArray es. [MyOPCTopic]Posizione,L50)
items[0].ItemName = $"{ItemName},L{Length}";
//Aggiungo l'oggetto al gruppo
items = groupRead.AddItems(items);
//Leggo il valore dell'item aggiunto
ItemValueResult[] Ritorno = groupRead.Read(items);
//Controllo che la lettura dell'array sia andata a buon fine, se non è così lancio un'eccezione
if (!Ritorno[0].ResultID.Name.Name.Equals("S_OK"))
{
throw new System.Exception("Errore lettura OPC Tag");
}
return(groupRead.Read(items));
}
catch (Exception ex)
{
//Se viene lanciata un'eccezione ritorno un array di ItemValueResult con il primo che ha valore -1 e mostro un Messagebox con l'errore
MessageBox.Show(ex.Message);
ItemValueResult[] Errore = new ItemValueResult[1];
Errore[0] = new ItemValueResult();
float[] Err = { (float)-1, (float)-1 };
Errore[0].Value = Err;
return(Errore);
}
}
/// <summary>
/// 连接服务器
/// </summary>
/// <param name="serverName"></param>
/// <param name="host"></param>
public OpcResult Connect(string serverName, string host = "127.0.0.1")
{
OpcResult opcResult = OpcResult.ServerNoConnect;
try
{
this.OpcServerName = serverName;
this.Host = host;
if (string.IsNullOrWhiteSpace(serverName) || string.IsNullOrWhiteSpace(host))
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("未指定服务器或主机名称"));
}
opcResult = OpcResult.E_FAIL;
return(opcResult);
}
if (IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已经连接,host=" + host + ",serverName=" + serverName));
}
opcResult = OpcResult.S_OK;
return(opcResult);
}
var servers = OpcClientHelper.getOpcServers(host);
if (!Equals(null, servers) && servers.Any(a => a.Name == serverName))
{
opcServer = (Opc.Da.Server)servers.FirstOrDefault(a => a.Name == serverName);
opcServer.Connect();
//服务器断开事件
opcServer.ServerShutdown += opcServer_ServerShutdown;
IsConnected = true;
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("连接Opc服务器成功,host=" + host + ",serverName=" + serverName));
}
//连接成功后开启守护进程
daemonTimer.Enabled = true;
daemonTimer.Start();
opcResult = OpcResult.S_OK;
}
return(opcResult);
}
catch (Exception ex)
{
IsConnected = false;
if (!Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcErrorEventArgs(OpcResult.E_FAIL, "连接Opc服务器时出错：" + ex.Message, ex));
}
opcResult = OpcResult.E_FAIL;
return(opcResult);
}
}
public void Browse(System.Windows.Forms.TreeNode node)
{
try
{
Opc.Da.Server server = this.FindServer(node);
ItemIdentifier itemID = null;
if (node.Tag != null && node.Tag.GetType() == typeof(BrowseElement))
{
BrowseElement browseElement = (BrowseElement)node.Tag;
itemID = new ItemIdentifier(browseElement.ItemPath, browseElement.ItemName);
}
node.Nodes.Clear();
BrowsePosition browsePosition = null;
BrowseElement[] array = server.Browse(itemID, this.m_filters, out browsePosition);
if (array != null)
{
BrowseElement[] array2 = array;
for (int i = 0; i < array2.Length; i++)
{
BrowseElement browseElement2 = array2[i];
if (!browseElement2.ItemName.Contains("alrosa_w") && !browseElement2.ItemName.Contains("List of"))
{
if (!browseElement2.IsItem)
{
this.AddBrowseElement(node, browseElement2);
}
}
}
node.Expand();
}
while (browsePosition != null)
{
System.Windows.Forms.DialogResult dialogResult = System.Windows.Forms.MessageBox.Show("More items meeting search criteria exist. Continue browse?", "Browse Items", System.Windows.Forms.MessageBoxButtons.YesNo);
if (dialogResult == System.Windows.Forms.DialogResult.No)
{
break;
}
array = server.BrowseNext(ref browsePosition);
if (array != null)
{
BrowseElement[] array2 = array;
for (int i = 0; i < array2.Length; i++)
{
BrowseElement browseElement2 = array2[i];
this.AddBrowseElement(node, browseElement2);
}
node.Expand();
}
}
}
catch (System.Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
}
}
private string getRootName(Server server)
{
BrowsePosition position;
BrowseFilters filters = new BrowseFilters()
{
BrowseFilter = browseFilter.all
};
BrowseElement[] rootElements = server.Browse(new ItemIdentifier(), filters, out position);
return(rootElements[0].ItemName);
}
/// <summary>
/// Connect the client to the OPC Server
/// </summary>
public void Connect()
{
if (Status == OpcStatus.Connected)
{
return;
}
_server = new OpcDa.Server(new Factory(), _url);
_server.Connect();
RootNode = new DaNode(this, string.Empty, string.Empty);
AddNodeToCache(RootNode);
}
public void WithConnectedOpcDaServer(string opcServerUrl, Action <OpcDaClientConnector, Opc.Da.Server> action, Action <Exception> onError = null)
{
var url = new URL(opcServerUrl);
using (var server = new Opc.Da.Server(new OpcCom.Factory(), null))
{
var connectData = new ConnectData(new System.Net.NetworkCredential());
server.Connect(url, connectData);
action(this, server);
}
}
public OPCServer(string serverName)
{
if (String.IsNullOrEmpty(serverName))
throw new ArgumentException("Server name is invalid.");
_serverURL = new URL(serverName);
_serverURL.Scheme = "opcda";
_server = new Opc.Da.Server(new OpcCom.Factory(), _serverURL);
try
{
_server.Connect();
}
catch (Opc.ConnectFailedException connectionExc) {
Console.WriteLine("Connection to OPC server could not be established");
Console.WriteLine(connectionExc.ToString());
}
}
public void Connect()
{
try
{
XmlElement docRoot = _xmlDocument.DocumentElement;
foreach (XmlNode driverNode in docRoot.ChildNodes)
{
if (driverNode.Attributes["Id"].Value.Equals("6A1B8105-BD9A-4658-870F-D35D4029C928"))
{
OpcCom.Factory fact = new OpcCom.Factory();
_opcDaServer = new Opc.Da.Server(fact, null);
Opc.URL url = new Opc.URL(driverNode.Attributes["OpcServerUrl"].Value);
_opcDaServer.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
private void UpdateFolderData(TreeNode node)
{
if (node == null)
{
uiFolderTagsBindingSource.DataSource = null;
return;
}
//Add items to folder, read from OPC Server if first time
var folderTags = node.Tag as List<BrowseElement>;
if (folderTags == null)
{
TreeNode rootNode = node;
while (rootNode.Parent != null)
{
rootNode = rootNode.Parent;
}
var opcServer = Settings.OpcServers.Where(os => rootNode.FullPath == os.ServerName).Single();
string urlstring = opcServer.URL;
Server server = new Server(new Factory(), new URL(urlstring));
server.Connect();
BrowsePosition position;
BrowseFilters filters = new BrowseFilters() { BrowseFilter = browseFilter.all };
ItemIdentifier itemId = null;
if (node.FullPath != server.Name)
{
itemId = new ItemIdentifier(node.Name);
}
BrowseElement[] elements = server.Browse(itemId, filters, out position);
server.Disconnect();
var items = elements.Where(e => e.IsItem);
if (items.Any())
{
folderTags = items.ToList();
}
else
{
folderTags = new List<BrowseElement>();
}
var folders = elements.Where(e => e.IsItem == false);
if(folders.Any())
{
foreach (var element in elements.Where(e => !e.IsItem))
{
node.Nodes.Add(element.Name).Name = element.ItemName;
}
}
node.Tag = folderTags;
}
//Exlude elements which already are in group
folderTags = folderTags.ToList();
var selectedGroup = uiGroupsTab_Groups.SelectedItem as Group;
if (selectedGroup != null)
{
if (selectedGroup.Properties != null)
{
foreach (var property in selectedGroup.Properties)
{
folderTags.RemoveAll(t => t.ItemName == property.TagName);
}
}
}
uiFolderTagsBindingSource.DataSource = folderTags;
//if (elements != null)
//{
// var itemsIDs = new List<ItemIdentifier>();
// foreach (var element in elements)
// {
// itemsIDs.Add(new ItemIdentifier(element.ItemName));
// }
// var prid = new List<PropertyID>();
// prid.Add(new PropertyID(1));
// prid.Add(new PropertyID(2));
// var tst = server.GetProperties(itemsIDs.ToArray(), prid.ToArray(), true);
//}
}
//private void AddNode(Server opcServer, TreeNode treeNode)
//{
// ItemIdentifier itemId;
// BrowsePosition position;
// BrowseFilters filters = new BrowseFilters() { BrowseFilter = browseFilter.branch };
// if (treeNode.FullPath == opcServer.Name)
// {
// itemId = null;
// }
// else
// {
// //int serverNameLength = opcServer.Name.Length;
// //string itemIdentifier = treeNode.FullPath.Substring(serverNameLength + 1);
// itemId = new ItemIdentifier(treeNode.Name);
// }
// BrowseElement[] elements = opcServer.Browse(itemId, filters, out position);
// if (elements == null)
// {
// return;
// }
// foreach (var element in elements)
// {
// treeNode.Nodes.Add(element.Name).Name = element.ItemName;
// }
// //foreach (TreeNode node in treeNode.Nodes)
// //{
// // AddNode(opcServer, node);
// //}
//}
private void UpdateFoldersTree()
{
uiGroupsTab_AllFoldersTreeView.Nodes.Clear();
List<OpcServer> opcServers;
if (uiGroupsTab_Groups.SelectedItem == null)
{
opcServers = Settings.OpcServers;
}
else
{
var selectedGroup = uiGroupsTab_Groups.SelectedItem as Group;
opcServers = new List<OpcServer>();
opcServers.Add(selectedGroup.OpcServer);
}
foreach (var opcServer in opcServers)
{
string urlstring = opcServer.URL;
Server server = new Server(new Factory(), new URL(urlstring));
if (opcServer.RootNode == null)
{
var newNode = uiGroupsTab_AllFoldersTreeView.Nodes.Add(server.Name);
server.Connect();
//AddNode(server, newNode);
UpdateFolderData(newNode);
server.Disconnect();
opcServer.RootNode = newNode;
}
else
{
uiGroupsTab_AllFoldersTreeView.Nodes.Add(opcServer.RootNode);
}
}
if (uiGroupsTab_AllFoldersTreeView.Nodes != null)
{
foreach (TreeNode node in uiGroupsTab_AllFoldersTreeView.Nodes)
{
node.Expand();
}
}
UpdateFolderData(uiGroupsTab_AllFoldersTreeView.SelectedNode);
}
public OpcIoDevice(string options)
{
_url = new URL(options);
var fact = new OpcCom.Factory();
_server = new Server(fact, null);
}
/// <summary>
/// Tries to connect to the server.
/// </summary>
private void Connect()
{
Opc.URL url = new Opc.URL("opcda://localhost/" + _serverName);
OpcCom.Factory fact = new OpcCom.Factory();
_server = new Opc.Da.Server(fact, null);
try
{
_server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
}
catch (Exception ex)
{
_error.Append(ex.ToString());
if (ex.InnerException != null)
_error.Append(ex.InnerException.ToString());
}
}