Beispiel #1
0
 public void GetData(ref List <OPCItems> list)
 {
     if (TotalItemNumber != list.Count)
     {
         opcgrp_arrayQualities = new int[0];
         opcgrp_arrayHandles   = new Int32[0];
         opcgrp_arraySHandles  = new int[0];
         opcgrp_arrayErrors    = new int[0];
         opcgrp_arrayValues    = new int[0];
         opcgrp_arrayPaths     = new string[0];
         opcgrp_itemVar        = new OPCItems[0];
         TotalItemNumber       = 0;
         foreach (OPCItems item in list)
         {
             AddItem(item.Tag, item.Address, item.Description, item.PLCName);
             this.Create();
         }
     }
     this.GetData();
     for (int i = 0; i < list.Count; i++)
     {
         OPCItems oPCItems = this.GetTagItem(list[i].Tag);
         if (oPCItems.Quality < 192)
         {
             Quality = "Bad";
         }
         if (list[i].Value != oPCItems.Value)
         {
             list[i].Value  = oPCItems.Value;
             TransationSum += 1;
         }
         list[i].Quality = oPCItems.Quality;
     }
 }
Beispiel #2
0
        public Boolean AddItem(string newTag, string newAddress, string newDescprition, string newPLCName = null)
        {
            TotalItemNumber++;
            opcgrp_arrayPaths     = ResizeArray(opcgrp_arrayPaths, TotalItemNumber + 1);
            opcgrp_arrayHandles   = ResizeArray(opcgrp_arrayHandles, TotalItemNumber + 1);
            opcgrp_itemVar        = ResizeArray(opcgrp_itemVar, TotalItemNumber + 1);
            opcgrp_arrayValues    = ResizeArray(opcgrp_arrayValues, TotalItemNumber + 1);
            opcgrp_arrayErrors    = ResizeArray(opcgrp_arrayErrors, TotalItemNumber + 1);
            opcgrp_arraySHandles  = ResizeArray(opcgrp_arraySHandles, TotalItemNumber + 1);
            opcgrp_arrayQualities = ResizeArray(opcgrp_arrayQualities, TotalItemNumber + 1);
            OPCItems itemV;

            itemV = new OPCItems
            {
                Tag         = newTag.Trim(),
                Address     = newAddress.Trim(),
                Description = newDescprition.Trim(),
                PLCName     = newPLCName == null?PLCName.Trim() : newPLCName.Trim()
            };
            opcgrp_arrayHandles.SetValue(TotalItemNumber, TotalItemNumber);
            opcgrp_itemVar.SetValue(itemV, TotalItemNumber);
            opcgrp_arrayPaths.SetValue(newPLCName.Trim() + newAddress.Trim(), TotalItemNumber);
            return(true);
        }
Beispiel #3
0
 public Boolean GetData()
 {
     try
     {
         Transacting     = true;
         TransactionFlag = true;
         //for (; IntData.readingOPC; ) Thread.Sleep(10);
         if (IntData.IsOPCConnected)
         {
             object timestamps = new object(); //store the timestamp of the read
             object qualities  = new object();
             IntData.IsOPCConnected = true;
             opcgrp_server          = new OPCServer();
             opcgrp_server.Connect(ServerName);
             opcgrp_group    = opcgrp_server.OPCGroups.Add(GroupName);
             TotalItemNumber = opcgrp_arrayPaths.Length - 1;
             opcgrp_group.OPCItems.DefaultIsActive = true;
             opcgrp_group.OPCItems.AddItems(TotalItemNumber, opcgrp_arrayPaths, opcgrp_arrayHandles, out opcgrp_arraySHandles, out opcgrp_arrayErrors);
             opcgrp_group.SyncRead((short)OPCAutomation.OPCDataSource.OPCDevice, TotalItemNumber, ref opcgrp_arraySHandles, out opcgrp_arrayValues, out opcgrp_arrayErrors, out qualities, out timestamps);
             var qualitiesList = new List <int>();
             var errorsList    = new List <int>();
             foreach (var quality in (Array)qualities)
             {
                 qualitiesList.Add(Convert.ToInt32(quality));
             }
             foreach (var error in opcgrp_arrayErrors)
             {
                 errorsList.Add(Convert.ToInt32(error));
             }
             for (int i = 1; i <= TotalItemNumber; i++)
             {
                 OPCItems opcitem = new OPCItems();
                 opcitem         = (OPCItems)opcgrp_itemVar.GetValue(i);
                 opcitem.Quality = qualitiesList[i - 1];
                 //opcitem.Error = errorsList[i - 1];
                 if (opcgrp_arrayValues.GetValue(i) is System.Int32)
                 {
                     opcitem.Value = (int)opcgrp_arrayValues.GetValue(i);
                 }
                 else if (opcgrp_arrayValues.GetValue(i) is System.Double)
                 {
                     opcitem.Value = (double)opcgrp_arrayValues.GetValue(i);
                 }
                 else
                 {
                     opcitem.Value = opcgrp_arrayValues.GetValue(i).ToString();
                 }
                 if (opcitem.Quality == 0)
                 {
                     IntData.IsOPCConnected = false;
                     Quality = "Bad";
                 }
                 opcgrp_itemVar.SetValue(opcitem, i);
             }
             if (!IntData.IsOPCConnected)
             {
                 throw new Exception("The PLC connection is broken!");
             }
         }
         opcgrp_server.Disconnect();
         Transacting = false;
         //log.Success();
         return(true);
     }
     catch (Exception ex)
     {
         Console.WriteLine(ex.Message);
         return(false);
     }
 }