/// <summary>
/// 写入数据
/// </summary>
/// <param name="opcUaDataItem"></param>
/// <param name="newValue"></param>
/// <returns></returns>
public async Task <OpcUaStatusCodes> Write(OpcUaDataItem opcUaDataItem, object newValue)
{
return(await Task.Run(() =>
{
WriteValue valueToWrite = new WriteValue()
{
NodeId = new NodeId(opcUaDataItem.Name),
AttributeId = Attributes.Value
};
valueToWrite.Value.Value = Convert.ChangeType(newValue, opcUaDataItem.ValueType ?? typeof(object));
valueToWrite.Value.StatusCode = StatusCodes.Good;
valueToWrite.Value.ServerTimestamp = DateTime.MinValue;
valueToWrite.Value.SourceTimestamp = DateTime.MinValue;
WriteValueCollection valuesToWrite = new WriteValueCollection
{
valueToWrite
};
try
{
session.Write(null, valuesToWrite, out StatusCodeCollection results, out DiagnosticInfoCollection diagnosticInfos);
ClientBase.ValidateResponse(results, valuesToWrite);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, valuesToWrite);
opcUaDataItem.OpcUaStatusCodes = (OpcUaStatusCodes)results[0].Code;
opcUaDataItem.OldValue = opcUaDataItem.NewValue;
if (results[0].Code == 0)
{
opcUaDataItem.NewValue = newValue;
}
return (OpcUaStatusCodes)results[0].Code;
}
catch (ServiceResultException e)
{
OnErrorHappened?.Invoke(this, new OpcUaErrorEventArgs((OpcUaStatusCodes)e.StatusCode, $"写入数据时错误,{opcUaDataItem.ToString()}", e));
return OpcUaStatusCodes.BadServerHalted;
}
catch (Exception ex)
{
OnErrorHappened?.Invoke(this, new OpcUaErrorEventArgs(OpcUaStatusCodes.Uncertain, $"写入数据时发生未知错误,{opcUaDataItem.ToString()}", ex));
return OpcUaStatusCodes.Uncertain;
}
}));
}
///// <summary>
///// 批量写入
///// </summary>
///// <typeparam name="Tin"></typeparam>
///// <typeparam name="Tout"></typeparam>
///// <param name="writeParams"></param>
///// <returns></returns>
//public async Task<OpcUaStatusCodes[]> Writes(IList<OpcUaDataItem> opcUaDataItems, IList<object> newValues)
//{
// return await Task.Run(() =>
// {
// //var writeNodes = writeParams as DeviceInputParamEntityBase[];
// //OpcUaDeviceOutParamEntity[] opcUaDeviceOutParamEntitys = new OpcUaDeviceOutParamEntity[writeNodes.Count()];
// if (Equals(opcUaDataItems, null) || Equals(opcUaDataItems, null))
// {
// return new OpcUaStatusCodes[1];
// }
// if (opcUaDataItems.Count != newValues.Count)
// {
// OnLogHappened?.Invoke(this, new OpcUaLogEventArgs($"写入节点和值的数量不匹配{opcUaDataItems.Count}/{ newValues.Count}"));
// }
// WriteValueCollection valuesToWrite = new WriteValueCollection(opcUaDataItems.Count());
// foreach (var writeNode in opcUaDataItems)
// {
// WriteValue valueToWrite = new WriteValue();
// valueToWrite.NodeId = new NodeId(writeNode.Name);
// valueToWrite.AttributeId = Attributes.Value;
// valueToWrite.Value.Value = Convert.ChangeType(writeNode.NewValue, writeNode.ValueType ?? typeof(object));
// valueToWrite.Value.StatusCode = StatusCodes.Good;
// valueToWrite.Value.ServerTimestamp = DateTime.MinValue;
// valueToWrite.Value.SourceTimestamp = DateTime.MinValue;
// valuesToWrite.Add(valueToWrite);
// }
// try
// {
// session.Write(null, valuesToWrite, out StatusCodeCollection results, out DiagnosticInfoCollection diagnosticInfos);
// ClientBase.ValidateResponse(results, valuesToWrite);
// ClientBase.ValidateDiagnosticInfos(diagnosticInfos, valuesToWrite);
// for (int i = 0; i < results.Count; i++)
// {
// opcUaDataItems[i].OpcUaStatusCodes = (OpcUaStatusCodes)results[i].Code;
// //opcUaDataItem.Message = results[0].StatusCode.ToString();
// opcUaDataItems[i].OldValue = opcUaDataItems[i].NewValue;
// if (results[i].Code == 0)
// {
// opcUaDataItems[i].NewValue = newValues[i];
// }
// //return (OpcUaStatusCodes)results[0].Code;
// //OpcUaDeviceOutParamEntity opcUaDeviceOutParamEntity = new OpcUaDeviceOutParamEntity();
// //opcUaDeviceOutParamEntity.NodeId = writeNodes[i].NodeId;
// //opcUaDeviceOutParamEntity.Value = writeNodes[i].Value;
// //opcUaDeviceOutParamEntity.ValueType = valuesToWrite[i].Value.WrappedValue.TypeInfo.BuiltInType.GetTypeCode().ToType();
// //opcUaDeviceOutParamEntity.StatusCode = results[i].Code;
// //opcUaDeviceOutParamEntity.Message = OpcUaStatusCodes.GetBrowseName(results[i].Code);
// //opcUaDeviceOutParamEntitys[i] = opcUaDeviceOutParamEntity;
// }
// //return null;
// }
// catch (ServiceResultException e)
// {
// OnErrorHappened?.Invoke(this, new OpcUaErrorEventArgs((OpcUaStatusCodes)e.StatusCode, $"批量读取数据时错误", e));
// return new OpcUaStatusCodes[1];
// }
// catch (Exception ex)
// {
// OnErrorHappened?.Invoke(this, new OpcUaErrorEventArgs(OpcUaStatusCodes.Uncertain, $"批量读取数据时发生未知错误", ex));
// return new OpcUaStatusCodes[1];
// }
// });
//}
#endregion
#region 读取数据
/// <summary>
/// 读取数据
/// </summary>
/// <param name="opcUaDataItem"></param>
/// <returns></returns>
public async Task <OpcUaDataItem> Read(OpcUaDataItem opcUaDataItem)
{
return(await Task.Run(() =>
{
ReadValueId nodeToRead = new ReadValueId()
{
NodeId = new NodeId(opcUaDataItem.Name),
AttributeId = Attributes.Value
};
ReadValueIdCollection nodesToRead = new ReadValueIdCollection
{
nodeToRead
};
try
{
session.Read(null, 0, TimestampsToReturn.Neither, nodesToRead, out DataValueCollection results, out DiagnosticInfoCollection diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
opcUaDataItem.OpcUaStatusCodes = (OpcUaStatusCodes)results[0].StatusCode.Code;
//opcUaDataItem.Message = results[0].StatusCode.ToString();
opcUaDataItem.OldValue = opcUaDataItem.NewValue;
opcUaDataItem.NewValue = results[0].Value;
//opcUaDataItem.NodeId = readNode.NodeId;
//opcUaDataItem.ValueType = results[0].WrappedValue.TypeInfo.BuiltInType.GetTypeCode().ToType();
return opcUaDataItem;
}
catch (ServiceResultException e)
{
OnErrorHappened?.Invoke(this, new OpcUaErrorEventArgs((OpcUaStatusCodes)e.StatusCode, $"读取数据时错误,{opcUaDataItem.ToString()}", e));
return null;
}
catch (Exception ex)
{
OnErrorHappened?.Invoke(this, new OpcUaErrorEventArgs(OpcUaStatusCodes.Uncertain, $"读取数据时发生未知错误,{opcUaDataItem.ToString()}", ex));
return null;
}
}));
}
public OpcUaDataEventArgs(OpcUaStatusCodes opcUaStatusCodes, OpcUaDataItem opcUaDataItem)
{
this.OpcUaStatusCodes = opcUaStatusCodes;
this.OpcUaDataItem = opcUaDataItem;
}
