public void PLCRead()
{
try
{
// asynch read our two items
theGrp.SetEnable(true);
theGrp.Active = true;
theGrp.DataChanged += new DataChangeEventHandler(this.theGrp_DataChange);
theGrp.ReadCompleted += new ReadCompleteEventHandler(this.theGrp_ReadComplete);
int CancelID;
int[] aE;
Random rnd = new Random();
int transactionID = rnd.Next(1, 55667788);
theGrp.Read(handlesSrv, transactionID, out CancelID, out aE);
// some delay for asynch read-complete callback (simplification)
Thread.Sleep(500);
theGrp.DataChanged -= new DataChangeEventHandler(this.theGrp_DataChange);
theGrp.ReadCompleted -= new ReadCompleteEventHandler(this.theGrp_ReadComplete);
//theGrp.WriteCompleted -= new WriteCompleteEventHandler(this.theGrp_WriteComplete);
//theGrp.RemoveItems(handlesSrv, out aE); //теперь здесь
//theGrp.Remove(false);
}
catch (Exception e)
{
SetText("Unexpected Error:" + e.Message);
return;
}
}
public void TestErr_Read01()
{
//Testing --- out parameters are null
int[] arrHSrv = new int[1];
OPCItemState[] arrStat = null;
//Test Procedure Call
bool b = group.Read(OPCDATASOURCE.OPC_DS_CACHE, arrHSrv, out arrStat);
}
public override void RunOnce()
{
_server.LogWrite(LogType.DEBUG, "[" + this._name + "] : RunOnce вход");
//Создадим соединение
if (!Connect())
{
throw new Exception("[" + this._name + "] : Ошибка подключения! ");
}
//Синхронный режим прямой вызов
OPCItemState[] _opcitmstate;
//--Тестовая секция--
lock (lockThis)
{
_opcgrp.Read(_opcds, _serverhandles, out _opcitmstate);
}
for (int i = 0; i < _maps.GetLength(0); i++)
{
Tag tag = _server.GetTag(_maps[i, 0]);
if (_opcitmstate[i].Error == HRESULTS.S_OK)
{
if (_opcitmstate[i].DataValue is byte[])
{
_opcitmstate[i].DataValue = ByteArrayToString((byte[])_opcitmstate[i].DataValue);
}
else
{
tag.Value = _opcitmstate[i].DataValue;
}
tag.Timestamp = new DateTime(_opcitmstate[i].TimeStamp);
tag.Quality = (QualityType)Convert.ToByte(_opcitmstate[i].Quality);
_server.LogWrite(LogType.DEBUG, "[" + this._name + "] : " + _maps[i, 1] + "=" + tag.Value);
}
else
{
tag.Quality = QualityType.BAD;
_server.LogWrite(LogType.ERROR, "[" + this._name + "] : tag=" + _maps[i, 0] + ", opctag=" + _maps[i, 1] + ", ошибка: " + _opcitmstate[i].Error);
}
_server.SetTag(tag);
}
//--Тестовая секция--
//Отключим соединение если не требуется хранить его
Disconnect();
_server.LogWrite(LogType.DEBUG, "[" + this._name + "] : RunOnce выход");
}
public void ReadItems()
{
_itemAccessMutex.WaitOne();
try
{
int l_Index = 0;
OpcItemState[] l_ItemStateArray;
List <int> l_ServerHandleList = _serverModel.GetServerHandleList();
_group.Read(OpcDataSource.OPC_DS_DEVICE, l_ServerHandleList.ToArray(), out l_ItemStateArray);
foreach (int l_ServerHandle in l_ServerHandleList)
{
if (l_ItemStateArray[l_Index].Error == HResults.S_OK)
{
int l_ClientHandle = _serverModel.GetClientHandleFromServerHandle(l_ServerHandle);
Dictionary <string, string> l_ItemProps = new Dictionary <string, string>();
IOPCItem l_Item = _serverModel.GetItemFromClientHandle(l_ClientHandle);
l_ItemProps.Add(CModel.ServerModel.ItemPropValueKey, OpcUtility.ValueToString(l_Item.Type, l_ItemStateArray[l_Index].DataValue));
l_ItemProps.Add(CModel.ServerModel.ItemPropQualityKey, OpcUtility.QualityToString(l_ItemStateArray[l_Index].Quality));
l_ItemProps.Add(CModel.ServerModel.ItemPropTimestampKey, OpcUtility.TimeStampToString(l_ItemStateArray[l_Index].Timestamp));
_serverModel.UpdateItem(l_ClientHandle, l_ItemProps);
}
l_Index++;
}
}
catch (Exception l_Ex)
{
Disconnect();
throw l_Ex;
}
finally
{
_itemAccessMutex.ReleaseMutex();
}
}
public void updateItems()
{
if (OpcSrv == null)
{
Debug.WriteLine("Not connected");
return;
}
if (OpcGrp == null)
{
Debug.WriteLine("OPC group not created");
return;
}
int rtc = OpcGrp.Read(OPCDATASOURCE.OPC_DS_CACHE, ItemHandles, out result);
if (HRESULTS.Failed(rtc))
{
Debug.WriteLine("Read error 0x" + rtc.ToString("X"));
}
else // display the read values
{
string txt = "";
for (int i = 0; i < result.Length; ++i)
{
if (i > 0)
{
txt += "\r\n";
}
if (HRESULTS.Failed(result[i].Error))
{
txt += "Error 0x" + result[i].Error.ToString("X");
}
else
{
txt += result[i].DataValue.ToString();
}
}
}
}
private void bwLer_DoWork(object sender, DoWorkEventArgs e)
{
//Esse loop fica em verdadeiro (rodando sempre) quando clico no botão de leitura:
while (lerTag)
{
//Esse método abaixo faz a leitura OPC de todos os tags que eu tiver cadastrado
rtc = oGrp.Read(OPCDA.OPCDATASOURCE.OPC_DS_CACHE, iHnd, out rslt);
for (int i = 0; i < tags.Count; i++)
{
//Isso aqui é só um tratamento para ver se não veio dado vazio, se vier, escrever erro na tela:
if (rslt[i].DataValue == null)
{
//Condição de erro de leitura
this.Invoke(new MethodInvoker(delegate
{
}));
}
else
{
//Se estiver OK o valor, escreve seu valor lido na tela:
this.Invoke(new MethodInvoker(delegate
{
lv_tagList.Items[i].SubItems[1].Text = rslt[i].DataValue.ToString();
itensValor[i] = rslt[i].DataValue.ToString();
string nomeTag = tags[i].Substring(shortcut.Length);
insertDb(buscaTagId(nomeTag), rslt[i].DataValue.ToString());
}));
}
System.Threading.Thread.Sleep(tempoScan);
}
}
//Esse método abaixo faz a desconexão com o OPC Server.
srv.Disconnect();
}
public void ReadAllOPCData()
{
var iHnd = new Int32[numberOfReadOPCTags];
for (int i = 0; i < numberOfReadOPCTags; i++)
{
iHnd[i] = listOfOpcResults[i][0].HandleServer;
}
OPCItemState[] readState;
int rtc = OPCReadGroup.Read(
OPCDATASOURCE.OPC_DS_DEVICE, iHnd, out readState);
if (HRESULTS.Failed(rtc))
{
for (int i = 0; i < numberOfReadOPCTags; i++)
{
if (iHnd[i] == 0)
{
throw new ArgumentException(
"Could not read " + opcReadTags[i]);
}
}
}
int mmIIopcTagIndex = 0;
for (int i = 0; i < numberOfReadOPCTags; i++)
{
if (opcTags.OPCTags[mmIIopcTagIndex].FullName == "Nova Server.GetSample.RawValue01.Value")
{
mmIIopcTagIndex++;
}
opcTags.OPCTags[mmIIopcTagIndex].ObjectValue = readState[i].DataValue;
mmIIopcTagIndex++;
}
}
public void Work()
{
/* try // disabled for debugging
* { */
theSrv = new OpcServer();
theSrv.Connect(serverProgID);
Thread.Sleep(500); // we are faster then some servers!
// add our only working group
theGrp = theSrv.AddGroup("OPCCSharp-Group", false, 900);
// add two items and save server handles
itemDefs[0] = new OPCItemDef(itemA, true, 1234, VarEnum.VT_EMPTY);
itemDefs[1] = new OPCItemDef(itemB, true, 5678, VarEnum.VT_EMPTY);
OPCItemResult[] rItm;
theGrp.AddItems(itemDefs, out rItm);
if (rItm == null)
{
return;
}
if (HRESULTS.Failed(rItm[0].Error) || HRESULTS.Failed(rItm[1].Error))
{
Console.WriteLine("OPC Tester: AddItems - some failed"); theGrp.Remove(true); theSrv.Disconnect(); return;
}
;
handlesSrv[0] = rItm[0].HandleServer;
handlesSrv[1] = rItm[1].HandleServer;
// asynch read our two items
theGrp.SetEnable(true);
theGrp.Active = true;
theGrp.DataChanged += new DataChangeEventHandler(this.theGrp_DataChange);
theGrp.ReadCompleted += new ReadCompleteEventHandler(this.theGrp_ReadComplete);
int CancelID;
int[] aE;
theGrp.Read(handlesSrv, 55667788, out CancelID, out aE);
// some delay for asynch read-complete callback (simplification)
Thread.Sleep(500);
// asynch write
object[] itemValues = new object[2];
itemValues[0] = (int)1111111;
itemValues[1] = (double)2222.2222;
theGrp.WriteCompleted += new WriteCompleteEventHandler(this.theGrp_WriteComplete);
theGrp.Write(handlesSrv, itemValues, 99887766, out CancelID, out aE);
// some delay for asynch write-complete callback (simplification)
Thread.Sleep(500);
// disconnect and close
Console.WriteLine("************************************** hit to close...");
Console.ReadLine();
theGrp.DataChanged -= new DataChangeEventHandler(this.theGrp_DataChange);
theGrp.ReadCompleted -= new ReadCompleteEventHandler(this.theGrp_ReadComplete);
theGrp.WriteCompleted -= new WriteCompleteEventHandler(this.theGrp_WriteComplete);
theGrp.RemoveItems(handlesSrv, out aE);
theGrp.Remove(false);
theSrv.Disconnect();
theGrp = null;
theSrv = null;
/* }
* catch( Exception e )
* {
* Console.WriteLine( "EXCEPTION : OPC Tester " + e.ToString() );
* return;
* } */
}
static void Main(string[] args)
{
/*create array of readable Tags*/
var Tags = new List <OPCClientItem>();
Tags.Add(new OPCClientItem()
{
Name = ".test",
ClientHanle = 1
});
OpcServer server = new OpcServer();
try
{
int transactionID = new Random().Next(1024, 65535);
int cancelID = 0;
int updateRate = 1000;
/*connect to the OPC Server and check it's state*/
server.Connect("Matrikon.OPC.Simulation.1");
var serverStatus = new SERVERSTATUS();
server.GetStatus(out serverStatus);
if (serverStatus.eServerState == OPCSERVERSTATE.OPC_STATUS_RUNNING)
{
/*create group of items*/
OpcGroup group = server.AddGroup("Group1", true, updateRate);
group.ReadCompleted += group_ReadCompleted;
List <OPCItemDef> items = new List <OPCItemDef>();
Tags.ToList()
.ForEach(x => items.Add(new OPCItemDef(x.Name, true, x.ClientHanle, VarEnum.VT_EMPTY)));
/* add items and collect their attributes*/
OPCItemResult[] itemAddResults = null;
group.AddItems(items.ToArray(), out itemAddResults);
for (int i = 0; i < itemAddResults.Length; i++)
{
OPCItemResult itemResult = itemAddResults[i];
OPCClientItem tag = Tags[i];
tag.ServerHandle = itemResult.HandleServer;
tag.AccessRight = (itemResult.AccessRights == OPCACCESSRIGHTS.OPC_READABLE) ? OPCClientItem.EAccessRight.ReadOnly : OPCClientItem.EAccessRight.ReadAndWrite;
}
;
/*Refresh items in group*/
// group.Refresh2(OPCDATASOURCE.OPC_DS_DEVICE, transactionID, out cancelID);
/*Async read data for the group items*/
int[] serverHandles = new int[Tags.Count];
for (int i = 0; i < Tags.Count; i++)
{
serverHandles[i] = Tags[i].ServerHandle;
}
;
OPCItemState[] itemsStateResult = null;
/*sync read*/
group.Read(OPCDATASOURCE.OPC_DS_DEVICE, serverHandles, out itemsStateResult);
Console.WriteLine("Sync read:");
for (int i = 0; i < itemsStateResult.Length; i++)
{
OPCItemState itemResult = itemsStateResult[i];
Console.WriteLine(" -> item:{0}; value:{1}; timestamp{2}; qualituy:{3}", Tags[i].Name, itemResult.DataValue.ToString(), itemResult.TimeStamp, itemResult.Quality);
}
;
/*sync write*/
object[] values = new object[Tags.Count];
int[] resultErrors = new int[Tags.Count];
values[0] = (object)256;
group.Write(serverHandles, values, out resultErrors);
/*async read*/
group.Read(serverHandles, transactionID, out cancelID, out resultErrors);
/*wait for a while befor remove group to process async event*/
System.Threading.Thread.Sleep(3000);
/*the group must be removed !!! */
group.Remove(true);
}
;
}
finally
{
server.Disconnect();
server = null;
GC.Collect();
};
Console.ReadKey();
}
public void Work()
{
/* try // disabled for debugging
* { */
theSrv = new OpcServer();
theSrv.Connect(serverProgID);
Thread.Sleep(500); // we are faster then some servers!
// add our only working group
theGrp = theSrv.AddGroup("OPCCSharp-Group", false, timeref);
if (sendtags > tags.Length)
{
sendtags = tags.Length;
}
var itemDefs = new OPCItemDef[tags.Length];
for (var i = 0; i < tags.Length; i++)
{
itemDefs[i] = new OPCItemDef(tags[i], true, i, VarEnum.VT_EMPTY);
}
OPCItemResult[] rItm;
theGrp.AddItems(itemDefs, out rItm);
if (rItm == null)
{
return;
}
if (HRESULTS.Failed(rItm[0].Error) || HRESULTS.Failed(rItm[1].Error))
{
Console.WriteLine("OPC Tester: AddItems - some failed"); theGrp.Remove(true); theSrv.Disconnect(); return;
}
;
var handlesSrv = new int[itemDefs.Length];
for (var i = 0; i < itemDefs.Length; i++)
{
handlesSrv[i] = rItm[i].HandleServer;
}
currentValues = new Single[itemDefs.Length];
// asynch read our two items
theGrp.SetEnable(true);
theGrp.Active = true;
theGrp.DataChanged += new DataChangeEventHandler(this.theGrp_DataChange);
theGrp.ReadCompleted += new ReadCompleteEventHandler(this.theGrp_ReadComplete);
int CancelID;
int[] aE;
theGrp.Read(handlesSrv, 55667788, out CancelID, out aE);
// some delay for asynch read-complete callback (simplification)
Thread.Sleep(500);
while (webSend == "yes")
{
HttpListenerContext context = listener.GetContext();
HttpListenerRequest request = context.Request;
HttpListenerResponse response = context.Response;
context.Response.AddHeader("Access-Control-Allow-Origin", "*");
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseStringG);
// Get a response stream and write the response to it.
response.ContentLength64 = buffer.Length;
System.IO.Stream output = response.OutputStream;
output.Write(buffer, 0, buffer.Length);
// You must close the output stream.
output.Close();
}
// disconnect and close
Console.WriteLine("************************************** hit <return> to close...");
Console.ReadLine();
theGrp.ReadCompleted -= new ReadCompleteEventHandler(this.theGrp_ReadComplete);
theGrp.RemoveItems(handlesSrv, out aE);
theGrp.Remove(false);
theSrv.Disconnect();
theGrp = null;
theSrv = null;
/* }
* catch( Exception e )
* {
* Console.WriteLine( "EXCEPTION : OPC Tester " + e.ToString() );
* return;
* } */
}
static void Main(string[] args)
{
string progID = args.Length > 0 ? args[0] : "Kepware.KEPServerEX.V5";
OpcServer opcServer = new OpcServer();
opcServer.Connect(progID);
System.Threading.Thread.Sleep(500); // we are faster than some servers!
OpcGroup opcGroup = opcServer.AddGroup("SampleGroup", false, 900);
List <string> itemNames = new List <string>();
if (args.Length > 1)
{
for (int i = 1; i < args.Length; i++)
{
itemNames.Add(args[i]);
}
}
else
{
itemNames.Add("Simulation Examples.Functions.Ramp1");
itemNames.Add("Simulation Examples.Functions.Random1");
}
OpcItemDefinition[] opcItemDefs = new OpcItemDefinition[itemNames.Count];
for (int i = 0; i < opcItemDefs.Length; i++)
{
opcItemDefs[i] = new OpcItemDefinition(itemNames[i], true, i, VarEnum.VT_EMPTY);
}
opcGroup.AddItems(opcItemDefs, out OpcItemResult[] opcItemResult);
if (opcItemResult == null)
{
Console.WriteLine("Error add items - null value returned");
return;
}
int[] serverHandles = new int[opcItemResult.Length];
for (int i = 0; i < opcItemResult.Length; i++)
{
if (HRESULTS.Failed(opcItemResult[i].Error))
{
Console.WriteLine("AddItems - failed {0}", itemNames[i]);
opcGroup.Remove(true);
opcServer.Disconnect();
return;
}
else
{
serverHandles[i] = opcItemResult[i].HandleServer;
}
}
opcGroup.SetEnable(true);
opcGroup.Active = true;
bool result = opcGroup.Read(OPCDATASOURCE.OPC_DS_CACHE, serverHandles, out OpcItemState[] states);
foreach (OpcItemState s in states)
{
if (HRESULTS.Succeeded(s.Error))
{
Console.WriteLine(" {0}: {1} (Q:{2} T:{3})", s.HandleClient, s.DataValue, s.Quality, DateTime.FromFileTime(s.TimeStamp));
}
else
{
Console.WriteLine(" {0}: ERROR = 0x{1:x} !", s.HandleClient, s.Error);
}
}
opcGroup.Remove(true);
opcServer.Disconnect();
}
public void Work()
{
theSrv = new OpcServer();
theSrv.Connect(serverProgID);
Thread.Sleep(500); // we are faster then some servers!
// add our only working group
theGrp = theSrv.AddGroup("Group", false, 900);
theTargGrp = theSrv.AddGroup("Target", false, 900);
// add two items and save server handles
itemDefs[0] = new OPCItemDef(itemA, true, 1, VarEnum.VT_EMPTY);
itemDefs[1] = new OPCItemDef(itemB, true, 2, VarEnum.VT_EMPTY);
//
itemTarget[0] = new OPCItemDef(itemC, true, 1, VarEnum.VT_EMPTY);
OPCItemResult[] rItm;
theGrp.AddItems(itemDefs, out rItm);
if (rItm == null)
{
return;
}
if (HRESULTS.Failed(rItm[0].Error) || HRESULTS.Failed(rItm[1].Error))
{
AddTotextBox("OPC Tester: AddItems - some failed", textBox4);
theGrp.Remove(true);
theSrv.Disconnect();
return;
}
;
handlesSrv[0] = rItm[0].HandleServer;
handlesSrv[1] = rItm[1].HandleServer;
OPCItemResult[] rItmTarg;
theTargGrp.AddItems(itemTarget, out rItmTarg);
if (rItmTarg == null)
{
return;
}
if (HRESULTS.Failed(rItmTarg[0].Error))
{
AddTotextBox("OPC Tester: AddItems - some failed", textBox4);
theGrp.Remove(true);
theSrv.Disconnect();
return;
}
;
handlesTargetSrv[0] = rItmTarg[0].HandleServer;
//----------------------------------------------------------------------------------
// asynch read our two items
theGrp.SetEnable(true);
theGrp.Active = true;
theGrp.DataChanged += new DataChangeEventHandler(this.theGrp_DataChange);
theGrp.ReadCompleted += new ReadCompleteEventHandler(this.theGrp_ReadComplete);
int CancelID;
int[] aE;
theGrp.Read(handlesSrv, 55667788, out CancelID, out aE);
// some delay for asynch read-complete callback (simplification)
Thread.Sleep(500);
// asynch write
theTargGrp.SetEnable(true);
theTargGrp.Active = true;
object[] itemValues = new object[1];
itemValues[0] = (int)450;
theTargGrp.WriteCompleted += new WriteCompleteEventHandler(this.theGrp_WriteComplete);
theTargGrp.Write(handlesTargetSrv, itemValues, 99887766, out CancelID, out aE);
// some delay for asynch write-complete callback (simplification)
Thread.Sleep(500);
theGrp.DataChanged -= new DataChangeEventHandler(this.theGrp_DataChange);
theGrp.ReadCompleted -= new ReadCompleteEventHandler(this.theGrp_ReadComplete);
theGrp.WriteCompleted -= new WriteCompleteEventHandler(this.theGrp_WriteComplete);
}
public void PLCWrite()
{
try
{
theSrv = new OpcServer();
theSrv.Connect(serverProgID);
Thread.Sleep(500); // we are faster then some servers!
//add our only working group
theGrp = theSrv.AddGroup("Group", false, 900);
//add two items and save server handles
itemDefs[0] = new OPCItemDef(itemA, true, 1, VarEnum.VT_EMPTY);
itemDefs[1] = new OPCItemDef(itemB, true, 2, VarEnum.VT_EMPTY);
OPCItemResult[] rItm;
theGrp.AddItems(itemDefs, out rItm);
if (rItm == null)
{
return;
}
if (HRESULTS.Failed(rItm[0].Error) || HRESULTS.Failed(rItm[1].Error))
{
AddTotextBox("OPC Tester: AddItems - some failed", textBox4);
theGrp.Remove(true);
theSrv.Disconnect();
return;
}
;
if (handlesSrv[0] == 0)
{
handlesSrv[0] = rItm[0].HandleServer;
handlesSrv[1] = rItm[1].HandleServer;
}
// asynch read our two items
theGrp.SetEnable(true);
theGrp.Active = true;
theGrp.DataChanged += new DataChangeEventHandler(this.theGrp_DataChange);
theGrp.ReadCompleted += new ReadCompleteEventHandler(this.theGrp_ReadComplete);
int CancelID;
int[] aE;
Random rnd = new Random();
int transactionID = rnd.Next(1, 55667788);
theGrp.Read(handlesSrv, transactionID, out CancelID, out aE);
// some delay for asynch read-complete callback (simplification)
Thread.Sleep(500);
theGrp.DataChanged -= new DataChangeEventHandler(this.theGrp_DataChange);
theGrp.ReadCompleted -= new ReadCompleteEventHandler(this.theGrp_ReadComplete);
//theGrp.WriteCompleted -= new WriteCompleteEventHandler(this.theGrp_WriteComplete);
//theGrp.RemoveItems(handlesSrv, out aE); //теперь здесь
//theGrp.Remove(false);
}
catch (Exception e)
{
SetText("Unexpected Error:" + e.Message);
return;
}
}
