/// <summary>
/// Sets the variable value.
/// </summary>
private void SetVariable(VarItem varItem, CnlData[] cnlData, int dataIndex, DateTime timestamp)
{
try
{
DeviceTag deviceTag = varItem.DeviceTag;
int dataLength = deviceTag.DataLength;
object value = 0.0;
switch (deviceTag.DataType)
{
case TagDataType.Double:
value = deviceTag.IsArray ?
(object)CnlDataConverter.GetDoubleArray(cnlData, dataIndex, dataLength) :
CnlDataConverter.GetDouble(cnlData, dataIndex);
break;
case TagDataType.Int64:
value = deviceTag.IsArray ?
(object)CnlDataConverter.GetInt64Array(cnlData, dataIndex, dataLength) :
CnlDataConverter.GetInt64(cnlData, dataIndex);
break;
case TagDataType.ASCII:
value = CnlDataConverter.GetAscii(cnlData, dataIndex, dataLength);
break;
case TagDataType.Unicode:
value = CnlDataConverter.GetUnicode(cnlData, dataIndex, dataLength);
break;
}
BaseDataVariableState variable = varItem.Variable;
variable.Value = value;
variable.StatusCode = CnlDataConverter.GetStatus(cnlData, dataIndex, dataLength) > CnlStatusID.Undefined ?
StatusCodes.Good : StatusCodes.Bad;
variable.Timestamp = timestamp;
variable.ClearChangeMasks(SystemContext, false);
}
catch (Exception ex)
{
log.WriteException(ex, Locale.IsRussian ?
"Ошибка при установке значения переменной {0}" :
"Error setting the variable {0}", varItem.Variable.NodeId);
}
}
/// <summary>
/// Creates OPC server nodes that correspond to device tags.
/// </summary>
private void CreateDeviceTagNodes(FolderState folder, DeviceLogic deviceLogic, TagGroup tagGroup,
DeviceVars deviceVars)
{
string pathPrefix = CommUtils.GetDeviceLogFileName(deviceLogic.DeviceNum, ".");
foreach (DeviceTag deviceTag in tagGroup.DeviceTags)
{
if (!string.IsNullOrEmpty(deviceTag.Code))
{
BaseDataVariableState variable = CreateVariable(folder, pathPrefix, deviceTag);
variable.OnSimpleWriteValue = OnSimpleWriteValue;
VarItem varItem = new VarItem
{
Variable = variable,
DeviceTag = deviceTag,
DeviceNum = deviceLogic.DeviceNum
};
deviceVars[deviceTag.Code] = varItem;
varByPath[variable.NodeId.ToString()] = varItem;
}
}
}
