public void ReadItems()
{
m_ItemAccessMutex.WaitOne();
try
{
int l_Index = 0;
OPCItemState[] l_ItemStateArray;
List <int> l_ServerHandleList = m_ServerModel.GetServerHandleList();
m_Group.Read(OPCDataSource.OPC_DS_DEVICE, l_ServerHandleList.ToArray(), out l_ItemStateArray);
foreach (int l_ServerHandle in l_ServerHandleList)
{
if (l_ItemStateArray[l_Index].Error == HResults.S_OK)
{
int l_ClientHandle = m_ServerModel.GetClientHandleFromServerHandle(l_ServerHandle);
Dictionary <string, string> l_ItemProps = new Dictionary <string, string>();
IOPCItem l_Item = m_ServerModel.GetItemFromClientHandle(l_ClientHandle);
l_ItemProps.Add(ServerModel.ITEM_PROP_VALUE_KEY, OPCUtility.ValueToString(l_Item.Type, l_ItemStateArray[l_Index].DataValue));
l_ItemProps.Add(ServerModel.ITEM_PROP_QUALITY_KEY, OPCUtility.QualityToString(l_ItemStateArray[l_Index].Quality));
l_ItemProps.Add(ServerModel.ITEM_PROP_TIMESTAMP_KEY, OPCUtility.TimeStampToString(l_ItemStateArray[l_Index].Timestamp));
m_ServerModel.UpdateItem(l_ClientHandle, l_ItemProps);
if (this.VeriteqOPCServer)
{
WriteToDatabase(l_Item);
}
}
l_Index++;
}
}
catch (Exception l_Ex)
{
Disconnect();
throw l_Ex;
}
finally
{
m_ItemAccessMutex.ReleaseMutex();
}
}
