public ServerStatus_Result ServerStatus_Classic(string OPCURL)
{
ServerStatus_Result ServerStatus_Result = new ServerStatus_Result();
Opc.Da.Server ConnectedOPDAServer;
try
{
ConnectedOPDAServer = ConnectToOPCServer(OPCURL);
if (ConnectedOPDAServer == null)
{
return new ServerStatus_Result()
{
success = false, error = "Fail to Connect to OPC Server '" + OPCURL + "'"
}
}
;
ServerStatus serverStatus = ConnectedOPDAServer.GetStatus();
ServerStatus_Result.result = (serverStatus.ServerState == serverState.running);
ServerStatus_Result.success = true;
return(ServerStatus_Result);
}
catch (Exception ex)
{
return(new ServerStatus_Result()
{
success = false, error = ex.ToString()
});
}
}
public BrowseTag_Classic_Result BrowseTag_Classic(string OPCURL, string ItemId)
{
BrowseTag_Classic_Result BrowseTag_Classic_Result = new BrowseTag_Classic_Result();
Opc.Da.Server ConnectedOPDAServer;
try
{
ConnectedOPDAServer = ConnectToOPCServer(OPCURL);
if (ConnectedOPDAServer == null)
{
return new BrowseTag_Classic_Result()
{
success = false, result = null, error = "Fail to Connect to OPC Server '" + OPCURL + "'"
}
}
;
ItemPropertyCollection[] PropertiesCollections = ConnectedOPDAServer.GetProperties(
new ItemIdentifier[] { new ItemIdentifier(ItemId) },
new Opc.Da.PropertyID[] { new PropertyID(1), new PropertyID(2), new PropertyID(3), new PropertyID(4),
new PropertyID(5), new PropertyID(100), new PropertyID(101) },
true); // begin a browse.
if (PropertiesCollections != null)
{
foreach (ItemPropertyCollection Properties in PropertiesCollections)
{
foreach (Opc.Da.ItemProperty property in Properties)
{
if (!property.ResultID.Succeeded() || property.Value == null)
{
continue;
}
string PropertyName = property.ID.ToPropertyName();
if (PropertyName == null)
{
continue;
}
//Create a Property Node (Can be Value, Data Type,etc)
PropertyNode PN = new PropertyNode(PropertyName, property.Description, Opc.Convert.ToString(property.Value), property.ResultID.Succeeded());
//For certain properties, there are special case handlers
switch (property.ID.Code)
{
case 1: //Data Type
System.Type PropertyType = property.Value.GetType();
//if (PropertyType.FullName == "System.RuntimeType")
//{
// System.Type TTT = (System.Type)(property.Value);
// var DT = TTT.ToString();
// var DTComp = DT.Split('.');
// AddedNode.DataTypeString = DTComp.Last();
//}
//BrowseTag_Classic_Result.DataType = PropertyType;
BrowseTag_Classic_Result.result.DataTypeString = PropertyType.Name;
break;
case 2: //Value
if (property.Value is Array)
{
BrowseTag_Classic_Result.result.Value = "";
foreach (object element in (Array)property.Value)
{
string ValueElement = Opc.Convert.ToString(element);
BrowseTag_Classic_Result.result.Value += ValueElement + ",";
PN.ArrayValues.Add(new ArrayValue(ValueElement));
}
if (BrowseTag_Classic_Result.result.Value != null)
{
BrowseTag_Classic_Result.result.Value = BrowseTag_Classic_Result.result.Value.RemoveLastCharacter();
}
}
else
{
BrowseTag_Classic_Result.result.Value = PN.Value;
}
break;
case 3: //Quality
Quality Q = (Quality)(property.Value);
BrowseTag_Classic_Result.result.Quality = (Q.QualityBits == qualityBits.good || Q.QualityBits == qualityBits.goodLocalOverride);
break;
case 5: //Timestamp
if (property.Value is accessRights AR)
{
BrowseTag_Classic_Result.result.AccessLevel = AR.ToAccessLevel();
}
break;
case 100: //Engineering Unit
BrowseTag_Classic_Result.result.EngineeringUnit = PN.Value.ToString();
break;
case 101: //Description
BrowseTag_Classic_Result.result.Description = PN.Value.ToString();
break;
}
BrowseTag_Classic_Result.result.properties.Add(PN);
}
}
BrowseTag_Classic_Result.success = true;
return(BrowseTag_Classic_Result);
}
}
catch (Exception ex)
{
return(new BrowseTag_Classic_Result()
{
success = false, error = ex.ToString()
});
}
return(new BrowseTag_Classic_Result()
{
success = false, error = ""
});
}
public BrowseGeneric_Result BrowseBranch_Classic(string OPCURL, string ItemId)
{
Exception Exception = null;
List <BaseNode> Output = new List <BaseNode>();
Opc.Da.Server ConnectedOPDAServer;
try
{
ConnectedOPDAServer = ConnectToOPCServer(OPCURL);
if (ConnectedOPDAServer == null)
{
Exception = new Exception("Fail to Connect to OPC Server '" + OPCURL + "'");
return(new BrowseGeneric_Result()
{
success = false, result = null, error = Exception.ToString()
});
}
}
catch (Exception ex)
{
return(new BrowseGeneric_Result()
{
success = false, result = null, error = ex.ToString()
});
}
Opc.Da.BrowseElement[] Elements = null;
try
{
if (ItemId == null)
{
Elements = ConnectedOPDAServer.Browse(null, _BrowseFilters, out Opc.Da.BrowsePosition position);
}
else
{
Elements = ConnectedOPDAServer.Browse(new ItemIdentifier(null, ItemId), _BrowseFilters, out Opc.Da.BrowsePosition position); // begin a browse.
if (Elements == null)
{
Elements = ConnectedOPDAServer.Browse(new ItemIdentifier(ItemId, null), _BrowseFilters, out position); // begin a browse.
}
}
if (Elements != null)
{
foreach (Opc.Da.BrowseElement Element in Elements)
{
if (Element.IsItem) //If it is an OPC Tag Item
{
TagNode AddedNode = null;
if (!string.IsNullOrWhiteSpace(Element.ItemName))
{
Output.Add(AddedNode = new TagNode(Element.ItemName, OPCURL));
}
else if (!string.IsNullOrWhiteSpace(Element.ItemPath))
{
Output.Add(AddedNode = new TagNode(Element.ItemPath, OPCURL));
}
else if (!string.IsNullOrWhiteSpace(Element.Name))
{
Output.Add(AddedNode = new TagNode(Element.Name, OPCURL));
}
if (AddedNode != null && Element.Properties != null)
{
foreach (Opc.Da.ItemProperty property in Element.Properties)
{
if (!property.ResultID.Succeeded() || property.Value == null)
{
continue;
}
string PropertyName = property.ID.ToPropertyName();
if (PropertyName == null)
{
continue;
}
//Create a Property Node (Can be Value, Data Type,etc)
PropertyNode PN = new PropertyNode(PropertyName, property.Description, Opc.Convert.ToString(property.Value), property.ResultID.Succeeded());
//For certain properties, there is special case
switch (property.ID.Code)
{
case 1: //Data Type
System.Type PropertyType = property.Value.GetType();
if (PropertyType.FullName == "System.RuntimeType")
{
System.Type TTT = (System.Type)(property.Value);
var DT = TTT.ToString();
var DTComp = DT.Split('.');
AddedNode.DataTypeString = DTComp.Last();
}
break;
case 2: //Value
if (property.Value is Array)
{
foreach (object element in (Array)property.Value)
{
string ValueElement = Opc.Convert.ToString(element);
AddedNode.Value += ValueElement + ",";
PN.ArrayValues.Add(new ArrayValue(ValueElement));
}
if (AddedNode.Value != null)
{
AddedNode.Value = AddedNode.Value.RemoveLastCharacter();
}
}
else
{
AddedNode.Value = PN.Value;
}
break;
case 3: //Quality
Opc.Da.Quality Q = (Opc.Da.Quality)(property.Value);
AddedNode.QualityOK = (Q.QualityBits == Opc.Da.qualityBits.good || Q.QualityBits == Opc.Da.qualityBits.goodLocalOverride);
break;
case 5: //Timestamp
if (property.Value is Opc.Da.accessRights AR)
{
AddedNode.AccessLevel = AR.ToAccessLevel();
}
break;
case 100: //Engineering Unit
AddedNode.EngineeringUnit = PN.Value.ToString();
break;
case 101: //Description
AddedNode.Description = PN.Value.ToString();
break;
}
AddedNode.Properties.Add(PN);
}
}
}
else //If it is a Branch
{
BranchNode AddedNode = null;
if (!string.IsNullOrWhiteSpace(Element.ItemName))
{
Output.Add(AddedNode = new BranchNode(Element.ItemName, OPCURL));
}
else if (!string.IsNullOrWhiteSpace(Element.ItemPath))
{
Output.Add(AddedNode = new BranchNode(Element.ItemPath, OPCURL));
}
else if (!string.IsNullOrWhiteSpace(Element.Name))
{
Output.Add(AddedNode = new BranchNode(Element.Name, OPCURL));
}
}
}
return(new BrowseGeneric_Result()
{
success = true, result = Output
});
}
}
catch (Exception ex)
{
Exception = ex;
}
return(new BrowseGeneric_Result()
{
success = false, result = null, error = Exception?.ToString()
});
}
