Exemple #1
0
        /// <summary>
        /// 为待监听的全部Item生成ClientHandles,
        /// 根据配置信息将这些ClientHandles归档(Sum,Avg,Single),
        /// 并返回为之生成的ClientHandles
        /// </summary>
        /// <returns>生成的ClientHandles</returns>
        private int[] SetupItems()
        {
            int        handle = 1;
            int        id     = 1;
            List <int> result = new List <int>();

            for (int i = 0; i < Config.Group.OpcItems.Length; i++)
            {
                foreach (var item in Config.Group.OpcItems[i].Items)
                {
                    ItemRow ir = new ItemRow();
                    ir.ID       = id;
                    ir.Name     = item.Name;
                    ir.Strategy = item.Strategy;
                    ir.Handles  = new List <int>();
                    ir.Data     = new object[item.SubItems.Count];
                    foreach (var subItem in item.SubItems)
                    {
                        rowIdMap.Add(handle, id);
                        ir.Handles.Add(handle);
                        result.Add(handle);
                        itemIDs.Add(subItem.Value);
                        handle++;
                    }
                    itemTable.Add(ir);
                    id++;
                }
            }
            return(result.ToArray());
        }
Exemple #2
0
        private void Group_DataChange(int _TransactionID, int _NumItems, ref Array _ClientHandles, ref Array _ItemValues, ref Array _Qualities, ref Array _timeStamps)
        {
            //_ClientHandles可确定该条数据是哪个测点的
            int id = 0;

            for (int i = 1; i <= _NumItems; i++)
            {
                OPCAutomation.OPCQuality quality = (OPCAutomation.OPCQuality)_Qualities.GetValue(i);
                int clientHandle = (int)_ClientHandles.GetValue(i);
                id = (int)rowIdMap[clientHandle];

                if (quality == OPCAutomation.OPCQuality.OPCQualityGood)
                {
                    object  value = _ItemValues.GetValue(i);
                    ItemRow ir    = itemTable[id - 1];
                    //clientHandle-id可保证每次都覆盖clientHandle对应位置上的数据并保留本次没有更新到的数据
                    ir.Data[clientHandle - id] = value;

                    //重复赋值,但只取最后一次的值,待优化
                    ir.Timestamp = (DateTime)_timeStamps.GetValue(i);
                }
                else
                {
                    errorCount++;
                    errorItems.Add(itemIDs[id - 1]);
                }
            }

            Hashtable result = ProcessItemTable();

            if (errorCount == 0)
            {
                OPCDataChanged(this, new OpcDataChangedEventArgs(Config.Type, result));
            }
            else
            {
                string message = OpcUnableToReadException.CreateErrorMessage(errorCount, errorItems);
                OPCDataChanged(this, new OpcDataChangedEventArgs(Config.Type, result, message));
            }
        }
Exemple #3
0
 /// <summary>
 /// 为待监听的全部Item生成ClientHandles,
 /// 根据配置信息将这些ClientHandles归档(Sum,Avg,Single),
 /// 并返回为之生成的ClientHandles
 /// </summary>
 /// <returns>生成的ClientHandles</returns>
 private int[] SetupItems()
 {
     int handle = 1;
     int id = 1;
     List<int> result = new List<int>();
     for (int i = 0; i < Config.Group.OpcItems.Length; i++)
     {
         foreach (var item in Config.Group.OpcItems[i].Items)
         {
             ItemRow ir = new ItemRow();
             ir.ID = id;
             ir.Name = item.Name;
             ir.Strategy = item.Strategy;
             ir.Handles = new List<int>();
             ir.Data = new object[item.SubItems.Count];
             foreach (var subItem in item.SubItems)
             {
                 rowIdMap.Add(handle, id);
                 ir.Handles.Add(handle);
                 result.Add(handle);
                 itemIDs.Add(subItem.Value);
                 handle++;
             }
             itemTable.Add(ir);
             id++;
         }
     }
     return result.ToArray();
 }