private void StartAsyncRefreshFromDevice()
{
_timerRefreshFromDevice = new System.Timers.Timer();
_timerRefreshFromDevice.Interval = 1 * 60 * 1000;
_timerRefreshFromDevice.Elapsed += (o, e) =>
{
try
{
if (this.IsOpcConnected)
{
_group.AsyncRefresh((short)OPCDataSource.OPCDevice, 1002, out int cancelId);
}
}
catch (Exception ee)
{
TraceManagerForOPC.AppendErrMsg("OPC DA定时从客户端刷新数据异常" + ee.Message);
}
};
_timerRefreshFromDevice.Enabled = true;
}
// 枚举 OPC 服务器中所有标签
private void BuildGroupsAndTags()
{
_client.OPCGroups.DefaultGroupIsActive = true;
_client.OPCGroups.DefaultGroupDeadband = _defaultGroupDeadband;
_client.OPCGroups.DefaultGroupUpdateRate = _updateRate;
// 准备批量创建节点
List <string> listItemIds = new List <string>();
List <int> listClientHandles = new List <int>();
int itemHandle = 1;
int itemCount = 0;
// 批量创建时, 数组标号从 1 开始, 0 位无用
listItemIds.Add("");
listClientHandles.Add(0);
// 枚举节点
OPCBrowser opcBrowser = _client.CreateBrowser();
opcBrowser.ShowBranches();
opcBrowser.ShowLeafs(true);
foreach (object turn in opcBrowser)
{
string name = turn.ToString();
if (string.IsNullOrEmpty(name))
{
continue;
}
// 过滤系统变量
if (name.StartsWith("_") || name.IndexOf("._") > 0)
{
continue;
}
listItemIds.Add(name);
listClientHandles.Add(itemHandle++);
itemCount++;
}
// 创建组和节点
_group = _client.OPCGroups.Add("RootGroup");
Array itemIds = listItemIds.ToArray();
Array clientHandles = listClientHandles.ToArray();
_group.OPCItems.AddItems(itemCount, ref itemIds, ref clientHandles, out Array serverHandles, out Array errors);
// 创建标签
for (int i = 1; i < itemCount + 1; i++)
{
string itemName = Convert.ToString(itemIds.GetValue(i));
int clientHandle = Convert.ToInt32(clientHandles.GetValue(i));
int serverHandle = Convert.ToInt32(serverHandles.GetValue(i));
OpcTag opcTag = new OpcTag(itemName, clientHandle, serverHandle);
lock (_tagNamedIndex)
_tagNamedIndex[itemName] = opcTag;
lock (_tagClientHandleIndex)
_tagClientHandleIndex[clientHandle] = opcTag;
lock (_tagServerHandleIndex)
_tagServerHandleIndex[serverHandle] = opcTag;
}
// 启用订阅
_group.IsSubscribed = true;
_group.DataChange += OnDataChange;
// 从客户端缓存读取一次, 获取初始值
itemCount = _group.OPCItems.Count;
_group.SyncRead((short)OPCDataSource.OPCCache, itemCount, ref serverHandles, out Array values, out errors, out object qualities, out object timeStamps);
for (int i = 1; i < itemCount + 1; i++)
{
int serverHandle = Convert.ToInt32(serverHandles.GetValue(i));
OpcTag opcTag = null;
lock (_tagServerHandleIndex)
_tagServerHandleIndex.TryGetValue(serverHandle, out opcTag);
if (opcTag == null)
{
continue;
}
object value = values.GetValue(i);
int quality = Convert.ToInt32(((Array)qualities).GetValue(i));
DateTime timeStamp = Convert.ToDateTime(((Array)timeStamps).GetValue(i));
opcTag.Set(value, quality, timeStamp);
}
// 从设备异步读取一次
_group.AsyncRefresh((short)OPCDataSource.OPCDevice, 1001, out int cancelId);
}
/*
* public override bool AddAddress(int intAddress)
* {
* throw new Exception("구현 되지 않는 기능 입니다.");
* }
*
* public override bool AddAddress(int intAddress, int intLength)
* {
* throw new Exception("구현 되지 않는 기능 입니다.");
* }
*
* public override bool AddAddress(string[] strAddress)
* {
* try
* {
* foreach (string strAdd in strAddress)
* {
* this.Item_Add(strAdd);
* }
* return true;
* }
* catch (Exception ex)
* {
* throw ex;
* }
* }
*
*
*
* public override bool DelAddress(int intAddress)
* {
* throw new Exception("구현 되지 않는 기능 입니다.");
* }
* public override bool DelAddress(string[] strAddress)
* {
* throw new Exception("구현 되지 않는 기능 입니다.");
* }
*
*
*
* public override int GetValue(int intAddress)
* {
* throw new Exception("구현 되지 않는 기능 입니다.");
* }
* public override int GetValue(int intAddress, int intLength)
* {
* throw new Exception("구현 되지 않는 기능 입니다.");
* }
* public override string GetValue(int intAddress, int intLength, int intRetrunLength)
* {
* throw new Exception("구현 되지 않는 기능 입니다.");
* }
*
* public override int GetValue(string[] strAddress)
* {
* try
* {
* string strValue = string.Empty;
* foreach (string strAdd in strAddress)
* {
* strValue += IntToHex(this.Item_Read(strAdd));
* }
*
* return int.Parse(strValue);
* }
* catch (Exception ex)
* {
* throw ex;
* }
* }
* public override string GetValue(string[] strAddress, int intRetrunLength)
* {
* try
* {
* return string.Format("{0:D" + intRetrunLength.ToString() + "}", GetValue(strAddress));
* }
* catch (Exception ex)
* {
* throw ex;
* }
* }
*
* public override int GetValueInt(string strAddress)
* {
* try
* {
* return this.Item_Read(strAddress);
* }
* catch (Exception ex)
* {
* throw ex;
* }
* }
*
* public override bool WriteOrder(int Address, int Value)
* {
* throw new Exception("구현 되지 않는 기능 입니다.");
* }
*
* public override bool WriteOrder(string[] Address, int[] Value)
* {
* try
* {
* int i = 0;
* string strValue = string.Empty;
* foreach (string strAdd in Address)
* {
* this.Item_Write(strAdd, Value[i]);
* i++;
* }
*
* return true;
* }
* catch (Exception ex)
* {
* throw ex;
* }
* }
*/
#endregion
/// <summary>
/// opc연결 상태 체크 쓰레드..
/// </summary>
/// <param name="obj"></param>
private void tmrCheckOpcStatus(object obj)
{
if (bolChecking)
{
return;
}
try
{
bolChecking = true;
int intCancelId = 0;
if (OpcGrp == null)
{
if (bolOpcStatus)
{
return;
}
else
{
throw new Exception(string.Empty);
}
}
if (OpcGrp.OPCItems.Count < 1)
{
//if (bolOpcStatus)
return;
//else
// throw new Exception(string.Empty);
}
OpcGrp.AsyncRefresh(1, 2, out intCancelId);
RsiOPCAuto.OPCItem item = OpcGrp.OPCItems.Item(1);
//값을 정상 적으로 받지 못함..
if (item.Quality == 0)
{
throw new Exception(string.Empty);
}
if (this.Opc.ServerState == 1 && !this.bolOpcStatus) //접속 정상
{ //연결 회복..
this.bolOpcStatus = true;
this.ChConnection_Status(bolOpcStatus);
}
}
catch (Exception ex) //(System.Runtime.InteropServices.ExternalException ex)
{ //접속이 끊겼을 경우 상태 체크도 에러 발생 하므로...
Console.WriteLine(ex.ToString());
if (this.bolOpcStatus)
{
this.bolOpcStatus = false;
this.ChConnection_Status(bolOpcStatus);
}
//접속재시도..
try
{
this.close();
this.Open();
this.Item_Add();
}
catch { }
}
finally
{
bolChecking = false;
}
}