Example

Copy Code
var
 Group: TdOPCGroup;
begin
  Group := dOPCClient.OPCGroups.Add('MyGroup',true,rOnDatachange.IsChecked);
  for i := 0 to 999 do // add 1000 OPC Items
  begin
     // Parameter "true" means: no direct add to the OPC server subscription (add later)
     Group.OPCItems.AddItem(format('ns=6;s=DataItem_%.4d',[i]), true);
  end;
  Group.OPCItems.OPCAddAllItems; // Now add all Items with one OPC call
end;