private bool CreateGroup()
{
try
{
// add our only working group
_theGrp = _theSrv.AddGroup("OPCdotNET-Group", true, 500);
//При создании группы тут читаем данные по всем тегам с сервера.
OPCItemDef[] i = new OPCItemDef[12];
i[0] = new OPCItemDef();
i[1] = new OPCItemDef();
i[2] = new OPCItemDef();
i[3] = new OPCItemDef();
i[4] = new OPCItemDef();
i[5] = new OPCItemDef();
i[6] = new OPCItemDef();
i[7] = new OPCItemDef();
i[8] = new OPCItemDef();
i[9] = new OPCItemDef();
i[10] = new OPCItemDef();
i[11] = new OPCItemDef();
i[0].ItemID = OpcConsts.DispPress;
i[1].ItemID = OpcConsts.DlinaSopr;
i[2].ItemID = OpcConsts.Bits;
i[3].ItemID = OpcConsts.PosadkaKol;
i[4].ItemID = OpcConsts.SpeedPress;
i[5].ItemID = OpcConsts.Instrument;
i[6].ItemID = OpcConsts.BlinL;
i[7].ItemID = OpcConsts.BlinR;
i[8].ItemID = OpcConsts.DispPress1;
i[9].ItemID = OpcConsts.DispPress2;
i[10].ItemID = OpcConsts.DispPress3;
i[11].ItemID = OpcConsts.ShowGraph;
OPCItemResult[] resI = new OPCItemResult[4];
_theGrp.AddItems(i, out resI);
// add event handler for data changes
_theGrp.DataChanged += theGrp_DataChange;
_theGrp.WriteCompleted += theGrp_WriteComplete;
}
catch (COMException e)
{
throw e;
}
return(true);
}
private PLCCommand()
{
try
{
_opcSrv.Connect(StrSrvName);
for (int i = 0; i < _arrGrps.Length; i++)
{
string strGrp = _arrGrps[i];
OpcGroup grp = _opcSrv.AddGroup(strGrp, true, 9600);
grp.UpdateRate = 100;
grp.Active = true;
grp.PercentDeadband = 0;
_opcGrpsDic.Add(strGrp, grp);
string[] arrCurrentItems = _arrItems[i].Split(',');
OPCItemDef[] opcItems = new OPCItemDef[arrCurrentItems.Length];
OPCItemResult[] opcResults = new OPCItemResult[arrCurrentItems.Length];
for (int j = 0; j < arrCurrentItems.Length; j++)
{
string strItemName = $"{StrItemId}.{strGrp}.{arrCurrentItems[j]}";
OPCItemDef item = new OPCItemDef(strItemName, true, opcResults.Length, System.Runtime.InteropServices.VarEnum.VT_BOOL);
opcItems[j] = item;
}
Dictionary <string, OPCItemResult> oDic = new Dictionary <string, OPCItemResult>();
grp.AddItems(opcItems, out opcResults);
for (int k = 0; k < opcResults.Length; k++)
{
oDic.Add(arrCurrentItems[k], opcResults[k]);
}
_opcResultsDic.Add(strGrp, oDic);
}
}
catch (Exception ee)
{
LogImpl.Debug("错误" + ee.ToString());
}
}
private PLCCommand2()
{
try
{
opcSrv.Connect(strSrvName);
for (int i = 0; i < arrGrps.Length; i++)
{
string strGrp = arrGrps[i];
OpcGroup grp = opcSrv.AddGroup(strGrp, true, 9600);
opcGrpsDic.Add(strGrp, grp);
string[] arrCurrentItems = arrItems[i].Split(',');
OPCItemDef[] opcItems = new OPCItemDef[arrCurrentItems.Length];
OPCItemResult[] opcResults = new OPCItemResult[arrCurrentItems.Length];
for (int j = 0; j < arrCurrentItems.Length; j++)
{
string strItemName = string.Format("{0}.{1}.{2}", strItemID, strGrp, arrCurrentItems[j]);
OPCItemDef item = new OPCItemDef(strItemName, true, opcResults.Length, System.Runtime.InteropServices.VarEnum.VT_BOOL);
opcItems[j] = item;
}
Dictionary <string, OPCItemResult> oDic = new Dictionary <string, OPCItemResult>();
grp.AddItems(opcItems, out opcResults);
for (int k = 0; k < opcResults.Length; k++)
{
oDic.Add(arrCurrentItems[k], opcResults[k]);
}
opcResultsDic.Add(strGrp, oDic);
}
}
catch (Exception ee)
{
LogImpl.Error("plc初始化：" + ee.StackTrace);
}
}
static void Main(string[] args)
{
/*create array of readable Tags*/
var Tags = new List <OPCClientItem>();
Tags.Add(new OPCClientItem()
{
Name = ".test",
ClientHanle = 1
});
OpcServer server = new OpcServer();
try
{
int transactionID = new Random().Next(1024, 65535);
int cancelID = 0;
int updateRate = 1000;
/*connect to the OPC Server and check it's state*/
server.Connect("Matrikon.OPC.Simulation.1");
var serverStatus = new SERVERSTATUS();
server.GetStatus(out serverStatus);
if (serverStatus.eServerState == OPCSERVERSTATE.OPC_STATUS_RUNNING)
{
/*create group of items*/
OpcGroup group = server.AddGroup("Group1", true, updateRate);
group.ReadCompleted += group_ReadCompleted;
List <OPCItemDef> items = new List <OPCItemDef>();
Tags.ToList()
.ForEach(x => items.Add(new OPCItemDef(x.Name, true, x.ClientHanle, VarEnum.VT_EMPTY)));
/* add items and collect their attributes*/
OPCItemResult[] itemAddResults = null;
group.AddItems(items.ToArray(), out itemAddResults);
for (int i = 0; i < itemAddResults.Length; i++)
{
OPCItemResult itemResult = itemAddResults[i];
OPCClientItem tag = Tags[i];
tag.ServerHandle = itemResult.HandleServer;
tag.AccessRight = (itemResult.AccessRights == OPCACCESSRIGHTS.OPC_READABLE) ? OPCClientItem.EAccessRight.ReadOnly : OPCClientItem.EAccessRight.ReadAndWrite;
}
;
/*Refresh items in group*/
// group.Refresh2(OPCDATASOURCE.OPC_DS_DEVICE, transactionID, out cancelID);
/*Async read data for the group items*/
int[] serverHandles = new int[Tags.Count];
for (int i = 0; i < Tags.Count; i++)
{
serverHandles[i] = Tags[i].ServerHandle;
}
;
OPCItemState[] itemsStateResult = null;
/*sync read*/
group.Read(OPCDATASOURCE.OPC_DS_DEVICE, serverHandles, out itemsStateResult);
Console.WriteLine("Sync read:");
for (int i = 0; i < itemsStateResult.Length; i++)
{
OPCItemState itemResult = itemsStateResult[i];
Console.WriteLine(" -> item:{0}; value:{1}; timestamp{2}; qualituy:{3}", Tags[i].Name, itemResult.DataValue.ToString(), itemResult.TimeStamp, itemResult.Quality);
}
;
/*sync write*/
object[] values = new object[Tags.Count];
int[] resultErrors = new int[Tags.Count];
values[0] = (object)256;
group.Write(serverHandles, values, out resultErrors);
/*async read*/
group.Read(serverHandles, transactionID, out cancelID, out resultErrors);
/*wait for a while befor remove group to process async event*/
System.Threading.Thread.Sleep(3000);
/*the group must be removed !!! */
group.Remove(true);
}
;
}
finally
{
server.Disconnect();
server = null;
GC.Collect();
};
Console.ReadKey();
}
public string ServerAccessOpc(string serverName)
{
OpcServer Srv = new OpcServer();
int rtc = Srv.Connect(serverName);
if (HRESULTS.Failed(rtc))
{
try
{
return(Srv.GetErrorString(rtc, 0));
}
catch {
return(rtc.ToString());
}
}
OpcGroup oGrp;
float deadBand = 0.0F;
try
{
oGrp = Srv.AddGroup("Grp1", true, 500, ref deadBand, 0, 0);
}
catch (Exception ex)
{
Srv.Disconnect();
return(ex.Message);
}
OPCItemDef[] items = new OPCItemDef[1];
items[0] = new OPCItemDef("Saw-toothed Waves.Int2",
true, 0, VarEnum.VT_I2);
OPCItemResult[] addRslt = new OPCItemResult[1];
rtc = oGrp.AddItems(items, out addRslt);
if (HRESULTS.Failed(rtc))
{
Srv.Disconnect();
return("Error at AddItem");
}
int[] iHnd = new Int32[1];
iHnd[0] = addRslt[0].HandleServer;
OPCItemState[] rslt;
rtc = oGrp.Read(OPCDATASOURCE.OPC_DS_CACHE,
iHnd, out rslt);
string retVal;
if (HRESULTS.Failed(rtc))
{
retVal = "Read error";
}
else
if (HRESULTS.Failed(rslt[0].Error))
{
retVal = "Item Read error";
}
else
{
retVal = "data=" + rslt[0].DataValue.ToString();
}
oGrp.Remove(true);
Srv.Disconnect();
return(retVal);
}
public void TestCreateOPCItemResult01()
{
OPCItemResult oPCItemResult = CreateOPCItemResult01();
Assert.IsNotNull(oPCItemResult);
}
public static OPCItemResult CreateOPCItemResult01()
{
OPCItemResult oPCItemResult = new OPCItemResult();
return(oPCItemResult);
}
public void TestOPCItemResultConstructor01()
{
OPCItemResult oPCItemResult = new OPCItemResult();
}
