public void Subsribe(ItemIdentifier[] id)
{
int clientSubscriptionHandle = 1;
bool active = true;
int updateRate = 100;
Single deadBand = 0;
int revisedUpdateRate;
int serverSubscription;
try
{
ReturnCode rc = _daServerMgt.Subscribe(clientSubscriptionHandle, active, updateRate, out revisedUpdateRate, deadBand, ref id, out serverSubscription);
if (rc != ReturnCode.SUCCEEDED)
{
Writer.writeAll("subscribe request failed for one or more items : " + rc.ToString());
Writer.writeAll("ItemID : " + id.ToString());
// Examine ResultID objects for detailed information.
}
else
{
Writer.writeAll("Successfully subscribe to ItemID : " + id[0].ItemName);
}
}
catch (Exception e)
{
Writer.writeAll("Handled Subscribe exception. Reason: " + e.ToString());
}
}
private int SubscribeData()
{
List <OPCTag> TagList = new List <OPCTag>();
TagList.Add(new OPCTag()
{
Name = settings.TagRamp1,
Type = OPCTagType.Char
});
TagList.Add(new OPCTag()
{
Name = settings.TagRandom1,
Type = OPCTagType.Long
});
TagList.Add(new OPCTag()
{
Name = settings.TagSin1,
Type = OPCTagType.Float
});
bool active = false;
int updateRate = UpdateRate;
Single deadBand = 0;
int revisedUpdateRate;
int clientHandleUNQ = 0;
int index = 0;
itemIdentifiers = new ItemIdentifier[TagList.Count];
foreach (OPCTag tag in TagList)
{
itemIdentifiers[index] = new ItemIdentifier();
itemIdentifiers[index].ClientHandle = clientHandleUNQ;
itemIdentifiers[index].DataType = Type.GetType(tag.Type.ToString());
itemIdentifiers[index].ItemName = tag.Name;
index++;
clientHandleUNQ++;
}
try
{
DAServer.Subscribe(clientSubscription, active, updateRate, out revisedUpdateRate, deadBand, ref itemIdentifiers, out serverSubscription);
int faultCounter = 0;
for (int itemIndex = 0; itemIndex < TagList.Count; itemIndex++)
{
if (itemIdentifiers[itemIndex].ResultID.Succeeded == false)
{
faultCounter++;
}
}
return(TagList.Count - faultCounter);
}
catch { return(0); }
}
public int SubscribeData(List <OPCTag> TAG)
{
bool active = false;
int updateRate = UpdateRate;
Single deadBand = 0;
int revisedUpdateRate;
int clientHandleUNQ = 0;
int index = 0;
itemIdentifiers = new ItemIdentifier[TAG.Count];
if ((IDTAG != null) && (IDTAG.Count > 0))
{
IDTAG.Clear();
}
else
{
IDTAG = new Dictionary <int, string>();
}
foreach (OPCTag tag in TAG)
{
itemIdentifiers[index] = new ItemIdentifier();
itemIdentifiers[index].ClientHandle = clientHandleUNQ;
itemIdentifiers[index].DataType = Type.GetType(tag.Type.ToString());
itemIdentifiers[index].ItemName = tag.Name;
IDTAG.Add(clientHandleUNQ, tag.Name);
index++;
clientHandleUNQ++;
}
try
{
DAServer.Subscribe(clientSubscription, active, updateRate, out revisedUpdateRate, deadBand, ref itemIdentifiers, out serverSubscription);
int faultCounter = 0;
for (int itemIndex = 0; itemIndex < IDTAG.Count; itemIndex++)
{
if (itemIdentifiers[itemIndex].ResultID.Succeeded == false)
{
faultCounter++;
}
}
return(IDTAG.Count - faultCounter);
}
catch { return(0); }
}
public void Connect(/*object sender, EventArgs e*/)
{
connectInfo.LocalId = "en";
connectInfo.KeepAliveTime = 5000;
connectInfo.RetryAfterConnectionError = true;
connectInfo.RetryInitialConnection = true;
//connectInfo.ClientName = "Demo ClientAceC-Sharp DesktopApplication";
bool connectFailed;
string url = "opcda://127.0.0.1/Kepware.KEPServerEX.V6/{7BC0CC8E-482C-47CA-ABDC-0FE7F9C6E729}";
int clientHandle = 1;
// Connessione al server
try
{
daServerMgt.Connect(url, clientHandle, ref connectInfo, out connectFailed);
if (connectFailed)
{
Console.WriteLine("Connect failed" + Environment.NewLine);
}
else
{
Console.WriteLine("Connected to Server " + url + " Succeeded." + Environment.NewLine);
}
}
catch (Exception ex)
{
// ab edit: aggiungiamo ilcontesto per capire l'errore
Console.WriteLine($"Connect exeception: {ex.ToString()}");
}
InitMidnightTimer();
InitPlantState();
// Tag a cui mi voglio sottoscrivere
ItemIdentifier[] items = new ItemIdentifier[1];
items[0] = new ItemIdentifier
{
ItemName = "its-iot-device.Device1.PlantStatus",
ClientHandle = "PlantStatus"
};
/*items[1] = new ItemIdentifier
* {
* ItemName = "its-iot-device.Device1.PieceCounter",
* ClientHandle = "PieceCounter"
* };*/
/*items[2] = new ItemIdentifier
* {
* ItemName = "Simulation Examples.Functions.Ramp1",
* ClientHandle = "Ramp1"
* };*/
int serverSubscription;
ReturnCode returnCode;
// Parametri di sottoscrizione agli eventi
int clientSubscription = 1;
bool active = true;
int updateRate = 1000;
int revisedUpdateRate;
float deadband = 0;
try
{
// Sottoscrizione agli eventi change data
returnCode = daServerMgt.Subscribe(clientSubscription,
active,
updateRate,
out revisedUpdateRate,
deadband,
ref items,
out serverSubscription);
}
catch (Exception ex)
{
// ab edit: aggiungiamo ilcontesto per capire l'errore
Console.WriteLine($"Connect.subscribe exeception: {ex.ToString()}");
}
}
private void Initialize()
{
connectInfo.LocalId = "en";
connectInfo.KeepAliveTime = 5000;
connectInfo.RetryAfterConnectionError = true;
connectInfo.RetryInitialConnection = true;
connectInfo.ClientName = "ClientAce Client";
bool connectFailed;
string url = "opcda://<computer name>/Kepware.KEPServerEX.V6";
int clientHandle = 1;
// Connect to server
try
{
daServerMgt.Connect(url, clientHandle, ref connectInfo, out connectFailed);
if (connectFailed)
{
Console.WriteLine("Failed to connect to server. @ " + DateTime.Now);
}
else
{
Console.WriteLine("Connected to Server " + url + " Succeeded." + DateTime.Now);
}
}
catch (Exception e)
{
Console.WriteLine("Failed to connect to server." + e + " @ " + DateTime.Now);
}
// Tags
ItemIdentifier[] itemIdentifiers = new ItemIdentifier[2];
itemIdentifiers[0] = new ItemIdentifier();
itemIdentifiers[0].ItemName = "Channel1.Device1.Tag1";
itemIdentifiers[0].ClientHandle = 1; // Assign unique handle
itemIdentifiers[1] = new ItemIdentifier();
itemIdentifiers[1].ItemName = "Simulation Examples.Functions.Ramp1";
itemIdentifiers[1].ClientHandle = 2; // Assign unique handle
int serverSubscription;
ReturnCode returnCode;
// Event subscription parameters
int clientSubscription = 1;
bool active = true;
int updateRate = 1000;
int revisedUpdateRate;
float deadband = 0;
try
{
//Subscribe to tags
returnCode = daServerMgt.Subscribe(clientSubscription,
active,
updateRate,
out revisedUpdateRate,
deadband,
ref itemIdentifiers,
out serverSubscription);
if (returnCode == ReturnCode.SUCCEEDED)
{
Console.WriteLine("Successfully subscribed. @ " + DateTime.Now);
}
else
{
Console.WriteLine("Subscritpion failed. @ " + DateTime.Now);
}
}
catch (Exception e)
{
Console.WriteLine("Subscritpion failed." + e + " @ " + DateTime.Now);
}
}
private void Form1_Load(object sender, EventArgs e)
{
connectInfo.LocalId = "en";
connectInfo.KeepAliveTime = 5000;
connectInfo.RetryAfterConnectionError = true;
connectInfo.RetryInitialConnection = true;
connectInfo.ClientName = "Demo ClientAceC-Sharp DesktopApplication";
bool connectFailed;
string url = "opcda://127.0.0.1/Kepware.KEPServerEX.V6/{7BC0CC8E-482C-47CA-ABDC-0FE7F9C6E729}";
int clientHandle = 1;
// Connessione al server
try
{
daServerMgt.Connect(url, clientHandle, ref connectInfo, out connectFailed);
if (connectFailed)
{
debugBox.Text = "Connect failed" + Environment.NewLine;
}
else
{
debugBox.Text = "Connected to Server " + url + " Succeeded." + Environment.NewLine;
}
}
catch (Exception ex)
{
debugBox.Text = ex.ToString();
}
AggiornaDati();
// Tag a cui mi voglio sottoscrivere
ItemIdentifier[] items = new ItemIdentifier[4];
items[0] = new ItemIdentifier
{
ItemName = "its-iot-device.Device1.PlantStatus",
ClientHandle = "PlantStatus"
};
items[1] = new ItemIdentifier
{
ItemName = "Simulation Examples.Functions.Ramp1",
ClientHandle = "Ramp1"
};
items[2] = new ItemIdentifier
{
ItemName = "its-iot-device.Device1.PiecesProducted",
ClientHandle = "PiecesProducted"
};
items[3] = new ItemIdentifier
{
ItemName = "its-iot-device.Device1.PiecesDischarged",
ClientHandle = "PiecesDischarged"
};
int serverSubscription;
ReturnCode returnCode;
// Parametri di sottoscrizione agli eventi
int clientSubscription = 1;
bool active = true;
int updateRate = 1000;
int revisedUpdateRate;
float deadband = 0;
try
{
// Sottoscrizione agli eventi change data
returnCode = daServerMgt.Subscribe(clientSubscription,
active,
updateRate,
out revisedUpdateRate,
deadband,
ref items,
out serverSubscription);
}
catch (Exception ex)
{
debugBox.Text = ex.ToString();
}
}