internal static OpcDaItemValue[] Create(OpcDaGroup opcDaGroup, OPCITEMSTATE[] ppItemValues,
HRESULT[] ppErrors)
{
try
{
var result = new OpcDaItemValue[ppItemValues.Length];
for (var i = 0; i < result.Length; i++)
{
result[i] = new OpcDaItemValue
{
Timestamp = FileTimeConverter.FromFileTime(ppItemValues[i].ftTimeStamp),
Value = ppItemValues[i].vDataValue,
Quality = ppItemValues[i].wQuality,
Error = ppErrors[i],
Item = opcDaGroup.GetItem(ppItemValues[i].hClient)
};
}
return result;
}
catch (Exception ex)
{
Log.Error("Cannot create OpcDaItemValue object.", ex);
return new OpcDaItemValue[0];
}
}
internal static OpcDaItemValue[] Create(OpcDaGroup opcDaGroup, int dwCount, int[] phClientItems,
object[] pvValues,
short[] pwQualities, FILETIME[] pftTimeStamps, HRESULT[] pErrors)
{
try
{
var values = new OpcDaItemValue[dwCount];
for (var i = 0; i < values.Length; i++)
{
values[i] = new OpcDaItemValue
{
Value = pvValues[i],
Item = opcDaGroup.GetItem(phClientItems[i]),
Quality = pwQualities[i],
Timestamp = FileTimeConverter.FromFileTime(pftTimeStamps[i]),
Error = pErrors[i]
};
}
return values;
}
catch (Exception ex)
{
Log.Error("Cannot create OpcDaItemValue object.", ex);
return new OpcDaItemValue[0];
}
}
internal static OpcDaItemValue[] Create(OpcDaGroup opcDaGroup, int dwCount, int[] phClientItems,
object[] pvValues,
short[] pwQualities, FILETIME[] pftTimeStamps, HRESULT[] pErrors)
{
try
{
var values = new OpcDaItemValue[dwCount];
for (var i = 0; i < values.Length; i++)
{
values[i] = new OpcDaItemValue
{
Value = pvValues[i],
Item = opcDaGroup.GetItem(phClientItems[i]),
Quality = pwQualities[i],
Timestamp = FileTimeConverter.FromFileTime(pftTimeStamps[i]),
Error = pErrors[i]
};
}
return(values);
}
catch (Exception ex)
{
Log.Error("Cannot create OpcDaItemValue object.", ex);
return(new OpcDaItemValue[0]);
}
}
internal static OpcDaItemValue[] Create(IList<OpcDaItem> items, object[] ppvValues, OpcDaQuality[] ppwQualities,
DateTimeOffset[] ppftTimeStamps, HRESULT[] ppErrors)
{
try
{
var result = new OpcDaItemValue[items.Count];
for (var i = 0; i < ppvValues.Length; i++)
{
var tagValue = new OpcDaItemValue
{
Value = ppvValues[i],
Quality = ppwQualities[i],
Timestamp = ppftTimeStamps[i],
Error = ppErrors[i],
Item = items[i]
};
result[i] = tagValue;
}
return result;
}
catch (Exception ex)
{
Log.Error("Cannot create OpcDaItemValue object.", ex);
return new OpcDaItemValue[0];
}
}
internal static OpcDaItemValue[] Create(OpcDaGroup opcDaGroup, OPCITEMSTATE[] ppItemValues,
HRESULT[] ppErrors)
{
try
{
var result = new OpcDaItemValue[ppItemValues.Length];
for (var i = 0; i < result.Length; i++)
{
result[i] = new OpcDaItemValue
{
Timestamp = FileTimeConverter.FromFileTime(ppItemValues[i].ftTimeStamp),
Value = ppItemValues[i].vDataValue,
Quality = ppItemValues[i].wQuality,
Error = ppErrors[i],
Item = opcDaGroup.GetItem(ppItemValues[i].hClient)
};
}
return(result);
}
catch (Exception ex)
{
Log.Error("Cannot create OpcDaItemValue object.", ex);
return(new OpcDaItemValue[0]);
}
}
internal static OpcDaItemValue[] Create(IList <OpcDaItem> items, object[] ppvValues, OpcDaQuality[] ppwQualities,
DateTimeOffset[] ppftTimeStamps, HRESULT[] ppErrors)
{
try
{
var result = new OpcDaItemValue[items.Count];
for (var i = 0; i < ppvValues.Length; i++)
{
var tagValue = new OpcDaItemValue
{
Value = ppvValues[i],
Quality = ppwQualities[i],
Timestamp = ppftTimeStamps[i],
Error = ppErrors[i],
Item = items[i]
};
result[i] = tagValue;
}
return(result);
}
catch (Exception ex)
{
Log.Error("Cannot create OpcDaItemValue object.", ex);
return(new OpcDaItemValue[0]);
}
}
/// <summary>
/// Reads the specified group items.
/// </summary>
/// <param name="items">The group items.</param>
/// <param name="dataSource">The data source.</param>
/// <returns>
/// The values of the group items.
/// </returns>
public OpcDaItemValue[] Read(IList <OpcDaItem> items, OpcDaDataSource dataSource = OpcDaDataSource.Cache)
{
CheckItems(items);
CheckSupported(OpcDaGroupFeatures.Read);
int[] serverHandles = ArrayHelpers.GetServerHandles(items);
HRESULT[] ppErrors;
OPCITEMSTATE[] ppItemValues = As <OpcSyncIO>().Read((OPCDATASOURCE)dataSource, serverHandles, out ppErrors);
OpcDaItemValue[] result = OpcDaItemValue.Create(this, ppItemValues, ppErrors);
OnValuesChanged(new OpcDaItemValuesChangedEventArgs(result));
return(result);
}
/// <summary>
/// Reads the specified group items using MaxAge. If the information in the cache is within the MaxAge, then the data
/// will be obtained from the cache, otherwise the server must access the device for the requested information.
/// </summary>
/// <param name="items">The group items.</param>
/// <param name="maxAge">The list of MaxAges for the group items.</param>
/// <returns>
/// The values of the group items.
/// </returns>
/// <exception cref="System.ArgumentException">Invalid size of maxAge;maxAge</exception>
public OpcDaItemValue[] ReadMaxAge(IList <OpcDaItem> items, IList <TimeSpan> maxAge)
{
CheckSupported(OpcDaGroupFeatures.ReadMaxAge);
CheckItems(items);
int[] serverHandles = ArrayHelpers.GetServerHandles(items);
if (serverHandles.Length != maxAge.Count)
{
throw new ArgumentException("Invalid size of maxAge", "maxAge");
}
// int[] intMaxAge = ArrayHelpers.CreateMaxAgeArray(maxAge, items.Count);
DateTimeOffset[] timestamps;
HRESULT[] errors;
OpcDaQuality[] qualities;
object[] ppvValues = As <OpcSyncIO2>()
.ReadMaxAge(serverHandles, maxAge, out qualities, out timestamps, out errors);
OpcDaItemValue[] result = OpcDaItemValue.Create(items, ppvValues, qualities, timestamps, errors);
OnValuesChanged(new OpcDaItemValuesChangedEventArgs(result));
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="OpcDaItemValuesChangedEventArgs"/> class.
/// </summary>
/// <param name="values">The changed item values.</param>
public OpcDaItemValuesChangedEventArgs(OpcDaItemValue[] values)
{
Values = values;
}
public void Test_WriteVQT()
{
string[] itemIds = new[] { "Write Only.Int1", "Write Only.Int2" };
OpcDaItemValue[] values = new OpcDaItemValue[]
{
new OpcDaItemValue()
{
Value = 0,
Quality = (short) OPC_QUALITY_STATUS.BAD
},
new OpcDaItemValue()
{
Value = 0,
Timestamp = DateTimeOffset.Now-TimeSpan.FromHours(1)
},
};
HRESULT[] errors = _server.WriteVQT(itemIds, values);
errors.Should().OnlyContain(hres => hres.Succeeded);
}