public int GetNodeValue(string nodeStrGuid, out object nodeValue)
{
int rtc = -1;
nodeValue = null;
try
{
OPCDATASOURCE opcDataSource = OPCDATASOURCE.OPC_DS_DEVICE;
OPCItemState opcItemState = new OPCItemState();
DriveNodeEntity driveNode = allOPCItemNodes.Find(p => nodeStrGuid.Equals(p.nodeId));
ItemDef itemdef = syncIOGroup.Item(driveNode.nodeName);
rtc = syncIOGroup.Read(opcDataSource, itemdef, out opcItemState);
if (HRESULTS.Succeeded(rtc))
{
nodeValue = opcItemState.DataValue;
//txtItemQuality.Text = syncIOGroup.GetQualityString(opcItemState.Quality);
//txtTimeStamp.Text = DateTime.FromFileTime(opcItemState.TimeStamp).ToString();
}
}
catch (Exception ex)
{
NLogHelper.ExceptionInfo(ex, "GetNodeValue param:'{1}' ,exception:{0}", ex.Message, nodeStrGuid);
}
return(rtc);
}
public static int GetOpcAllItemByNodeRoot(DriveNodeEntity nodeRoot, out List <DriveNodeEntity> listItemNodes)
{
listItemNodes = null;
try
{
if (null == nodeRoot)
{
return(1);
}
listItemNodes = new List <DriveNodeEntity>();
foreach (DriveNodeEntity group in nodeRoot.childNode)
{
foreach (DriveNodeEntity item in group.childNode)
{
listItemNodes.Add(item);
}
}
return(0);
}
catch (Exception ex)
{
NLogHelper.ExceptionInfo(ex, "GetOpcAllItemByNodeRoot exception:{0} ", ex.Message);
return(-1);
}
}
public static int GetOpcServerAllItem(OpcServer opcSer, out List <DriveNodeEntity> driveNodes)
{
int rtc = -1;
driveNodes = null;
BrowseTree browseTress = new BrowseTree(opcSer);
rtc = browseTress.CreateTree();
if (HRESULTS.Succeeded(rtc))
{
TreeNode[] root = browseTress.Root();
if (root != null)
{
driveNodes = new List <DriveNodeEntity>();
// driveNotes 固定两层 ，没有使用递归 转换
foreach (TreeNode item in root)
{
DriveNodeEntity driveNodeTemp = CloneDriveNode(item, DriveNodeModel.OPCGroup);
foreach (TreeNode itemChild in item.Nodes)
{
driveNodeTemp.childNode.Add(CloneDriveNode(itemChild, DriveNodeModel.OPCItem));
}
driveNodes.Add(driveNodeTemp);
}
return(0);
}
}
return(rtc);
}
private static DriveNodeEntity CloneDriveNode(TreeNode treeNode, DriveNodeModel driveNodeModel)
{
DriveNodeEntity driveNode = new DriveNodeEntity();
driveNode.nodeId = GuidHelper.GetStringGuid();
driveNode.nodeType = DriveNodeType.OPC;
driveNode.nodeModel = driveNodeModel;
driveNode.nodeName = treeNode.Tag.ToString();
driveNode.nodeDisName = treeNode.Text;
return(driveNode);
}
public OPCBUSService(DriveNodeEntity _driveNodes)
{
opcSerNodes = _driveNodes;
}
