public static List <object> OPC_Read(List <string> ItemNames)
{
if (ItemNames == null || ItemNames.Count == 0)
{
return(null);
}
int count = ItemNames.Count;
List <object> readRtn = new List <object>();//设置返回值数组
using (var srv = new OPCXML_DataAccess())
{
ReadRequestItemList ItemLists = new ReadRequestItemList();
ItemLists.Items = new ReadRequestItem[count];
for (int i = 0; i < count; i++)
{
ItemLists.Items[i] = new ReadRequestItem();
ItemLists.Items[i].ItemPath = "";
ItemLists.Items[i].ItemName = ItemNames[i + 1];
}
RequestOptions opt = new RequestOptions();
ReplyItemList ItemValues = new ReplyItemList();;
OPCError[] Errors;
opt.ReturnItemTime = true;
srv.Read(opt, ItemLists, out ItemValues, out Errors);
foreach (var p in ItemValues.Items)
{
readRtn.Add(p.Value);
}
}
return(readRtn);
}
/*---------------------------------------------Reading Function Decleration ----------------------------------------------------------------*/
public List <object> OPCRead(List <string> TagNames)
{
/*---------------------------------------------Request Instance Decleration ----------------------------------------------------------------*/
List <string> TagName = new List <string>(TagNames);
List <object> TagValue = new List <object>();
int RTagNos = TagName.Count();
ReadRequestItemList ReadItemList = new ReadRequestItemList();
ReadItemList.Items = new ReadRequestItem[RTagNos];
RequestOptions.ClientRequestHandle = "";
RequestOptions.LocaleID = "EN-US";
RequestOptions.RequestDeadlineSpecified = false;
RequestOptions.ReturnDiagnosticInfo = false;
RequestOptions.ReturnErrorText = false;
RequestOptions.ReturnItemName = false;
RequestOptions.ReturnItemPath = false;
RequestOptions.ReturnItemTime = false;
ReadItemList.ItemPath = "";
for (int Looper = 0; Looper < RTagNos; Looper++)
{
ReadItemList.Items[Looper] = new ReadRequestItem();
ReadItemList.Items[Looper].ItemName = TagName[Looper];
}
/*---------------------------------------------Reading Function Invoked ----------------------------------------------------------------*/
myClient.Read(RequestOptions, ReadItemList, out ReplyList, out ErrorList);
/*---------------------------------------------Output to Console Invoked ----------------------------------------------------------------*/
for (int Looper = 0; Looper < ReplyList.Items.Count(); Looper++)
{
if ((ReplyList.Items[Looper] != null) && (ReplyList.Items[Looper].Value != null) && (ReplyList.Items[Looper].Value.GetType().Name != "XmlNode[]"))
{
TagValue.Add(ReplyList.Items[Looper].Value);
//Console.WriteLine(ReplyList.Items[Looper].Value.ToString());
//Value.ToString());
}
else
{
TagValue.Add("<Error>");
}
}
return(TagValue);
}
public OpcXmlDaDriver()
{
RequestOptions ReadOptions = new RequestOptions();
ReadOptions.ClientRequestHandle = "";
ReadOptions.LocaleID = "DE-AT";
ReadOptions.RequestDeadlineSpecified = true;
ReadOptions.ReturnDiagnosticInfo = true;
ReadOptions.ReturnErrorText = true;
ReadOptions.ReturnItemName = true;
ReadOptions.ReturnItemPath = true;
ReadOptions.ReturnItemTime = true;
ReadRequestItemList ReadItemList = new
ReadRequestItemList();
ReadRequestItem[] ReadItemArray = new
ReadRequestItem[1];
ReadRequestItem ReadItem = new ReadRequestItem();
ReadItem.ItemPath = "SIMOTION";
ReadItem.ItemName = "var/userData.user5";
ReadItemArray[0] = ReadItem;
ReadItemList.Items = ReadItemArray;
ReplyItemList ReadReplyList;
OPCError[] ReadErrorList;
Service C230_2_Server = new Service();
C230_2_Server.Url = "http://169.254.11.22/soap/opcxml";
System.Net.ICredentials myCredentials = new System.Net.NetworkCredential("simotion", "simotion");
C230_2_Server.Credentials = myCredentials;
C230_2_Server.PreAuthenticate = true;
System.Net.ServicePointManager.Expect100Continue = false;
C230_2_Server.Read(ReadOptions, ReadItemList, out ReadReplyList, out ReadErrorList);
//if ((ReadReplyList.Items[0] != null) && (ReadReplyList.Items[0].Value != null) && (ReadReplyList.Items[0].Value.GetType().Name != "XmlNode[]"))
// Output.Text = ReadReplyList.Items[0].Value.ToString();
//else
// Output.Text = "<Error>";
MessageBox.Show(ReadReplyList.Items[0].ItemName.ToString() + "\nValue: " + ReadReplyList.Items[0].Value);
}
/// <summary>
/// Reading all readings from an OPC server.
/// </summary>
private void ProcessOPCServer(OOPCDAServer opcDaServer)
{
if (opcDaServer.AutomaticPollingEnabled == 0)
return;
XmlServer srv = null;
try
{
srv = new XmlServer(opcDaServer.ObjectName);
List<OPoint> points = TablesLogic.tPoint.LoadList(
TablesLogic.tPoint.OPCDAServerID == opcDaServer.ObjectID);
if (points.Count == 0)
return;
List<ReadRequestItem> readRequestItems = new List<ReadRequestItem>();
Hashtable hash = new Hashtable();
foreach (OPoint point in points)
{
readRequestItems.Add(NewReadRequestItem(point.OPCItemName));
hash[point.OPCItemName] = point;
}
ReadRequestItemList readItemList = new ReadRequestItemList();
readItemList.Items = readRequestItems.ToArray();
ReplyBase reply;
RequestOptions options = new RequestOptions();
options.ReturnErrorText = true;
options.ReturnItemName = true;
ReplyItemList rslt;
OPCError[] err;
reply = srv.Read(options, readItemList, out rslt, out err);
if (rslt == null)
throw new Exception(err[0].Text);
else
{
int count = 0;
foreach (ItemValue iv in rslt.Items)
{
if (iv.ResultID == null)
{
try
{
using (Connection c = new Connection())
{
// Create the readings.
//
OReading reading = TablesLogic.tReading.Create();
OPoint point = hash[iv.ItemName] as OPoint;
if (point != null)
{
reading.PointID = point.ObjectID;
reading.LocationID = point.LocationID;
//reading.LocationTypeParameterID = point.LocationTypeParameterID;
reading.EquipmentID = point.EquipmentID;
//reading.EquipmentTypeParameterID = point.EquipmentTypeParameterID;
reading.DateOfReading = DateTime.Now;
if (iv.Value is bool)
reading.Reading = ((bool)iv.Value) ? 1 : 0;
else
reading.Reading = Convert.ToDecimal(iv.Value.ToString());
reading.Source = ReadingSource.OPCServer;
reading.CheckForBreachOfReading(point);
reading.Save();
count++;
}
c.Commit();
}
}
catch (Exception ex)
{
LogEvent(ex.Message + "\n\n" + ex.StackTrace, BackgroundLogMessageType.Error);
}
}
else
LogEvent("Error reading '" + iv.ItemName + "': " + iv.ResultID.Name, BackgroundLogMessageType.Error);
}
LogEvent(count + " points out of " + readItemList.Items.Length + " successfully read from server '" + opcDaServer.ObjectName + "'.");
}
}
catch (Exception ex)
{
LogEvent(ex.Message + "\n\n" + ex.StackTrace, BackgroundLogMessageType.Error);
}
finally
{
if (srv != null)
srv.Dispose();
}
}
