public OpcConnector(string progId, string plcName, string opcAddressFmt)
{
m_The_srv = new OpcServer();
m_The_srv.Connect(progId);
Thread.Sleep(500); // we are faster then some servers!
// add our only working group
m_The_grp = m_The_srv.AddGroup(plcName + "-strings", false, 900);
// add two items and save server handles
for (int i = 0; i < StrCount; i++)
m_Item_defs[i] = new OPCItemDef(string.Format(opcAddressFmt, plcName, 272 + i*6), true, i + 1,
VarEnum.VT_EMPTY);
OPCItemResult[] rItm;
m_The_grp.AddItems(m_Item_defs, out rItm);
if (rItm == null) return;
if (HRESULTS.Failed(rItm[0].Error) || HRESULTS.Failed(rItm[1].Error)) {
InstantLogger.msg("OPCDirectWriter: {0} -- AddItems - some failed", plcName);
m_The_grp.Remove(true);
m_The_srv.Disconnect();
return;
}
for (int i = 0; i < StrCount; i++)
m_Handles_srv[i] = rItm[i].HandleServer;
m_The_grp.WriteCompleted += TheGrpWriteComplete;
}
public override void ReadValue(Command command, Action <int, PointValueType, object> onValueReceive)
{
int index = command.DeviceAddress.IndexOf("|");
string ip = command.DeviceAddress.Substring(0, index);
string progid = command.DeviceAddress.Substring(index + 1);
OPC.Data.OpcServer opcServer = new OPC.Data.OpcServer();
opcServer.Connect(progid, ip);
OPC.Data.OpcGroup group1 = new OPC.Data.OpcGroup("g2", false, 1000, 1000, 0);
opcServer.OpcGroups.Add(group1);
int tranid = 0;
foreach (var point in command.Points)
{
OPCItem item = new OPCItem(point, tranid++);
group1.Items.Add(item);
}
var states = group1.Items.GetItemValues();
foreach (OPCItemState itemState in states)
{
pushValue(itemState, onValueReceive);
}
opcServer.Disconnect();
}
public override bool[] WriteValue(Command command)
{
int index = command.DeviceAddress.IndexOf("|");
string ip = command.DeviceAddress.Substring(0, index);
string progid = command.DeviceAddress.Substring(index + 1);
OPC.Data.OpcServer opcServer = new OPC.Data.OpcServer();
opcServer.Connect(progid, ip);
OPC.Data.OpcGroup group1 = new OPC.Data.OpcGroup("g3", false, 1000, 1000, 0);
opcServer.OpcGroups.Add(group1);
int tranid = 0;
foreach (var point in command.Points)
{
OPCItem item = new OPCItem(point, tranid++);
group1.Items.Add(item);
}
bool[] result = new bool[command.Values.Length];
for (int i = 0; i < command.Values.Length; i++)
{
if (command.Values[i] is Newtonsoft.Json.Linq.JArray)
{
var jarray = (Newtonsoft.Json.Linq.JArray)command.Values[i];
if (jarray.Count > 0)
{
try
{
var newValue = Array.CreateInstance(((Newtonsoft.Json.Linq.JValue)jarray[0]).Value.GetType(), jarray.Count);
for (int j = 0; j < jarray.Count; j++)
{
newValue.SetValue(((Newtonsoft.Json.Linq.JValue)jarray[j]).Value, j);
}
command.Values[i] = newValue;
result[i] = true;
}
catch
{
}
}
else
{
result[i] = true;
}
}
else
{
result[i] = true;
}
}
group1.Items.WriteItemValues(command.Values);
opcServer.Disconnect();
return(result);
}
public override bool CheckDeviceExist(Command command)
{
int index = command.DeviceAddress.IndexOf("|");
string ip = command.DeviceAddress.Substring(0, index);
string progid = command.DeviceAddress.Substring(index + 1);
try
{
OPC.Data.OpcServer opcServer = new OPC.Data.OpcServer();
opcServer.Connect(progid, ip);
opcServer.Disconnect();
}
catch
{
return(false);
}
return(true);
}
private static void Main(string[] args)
{
MainConf = System.Configuration.ConfigurationManager.OpenExeConfiguration("");
Destination = MainConf.AppSettings.Settings["OPCDestination"].Value;
CfgPath = MainConf.AppSettings.Settings["CfgPath"].Value;
var reqUpdateRateMs = Convert.ToInt32(MainConf.AppSettings.Settings["OPCReqUpdateRate"].Value);
MainGate = new ConnectionProvider.Client(new CoreListener());
MainGate.Subscribe();
var descriptionLoader = new LoaderCSV(Destination);
descriptions = descriptionLoader.LoadAndGet(CfgPath);
OpcServer_ = new OpcServer();
OpcServer_.Connect(MainConf.AppSettings.Settings["OPCServerProgID"].Value);
OpcGroup_ = OpcServer_.AddGroup(Destination + "-flex-events", false, reqUpdateRateMs);
OpcGroup_.DataChanged += OnDataChange;
var hClient = 0;
for (int dix = 0; dix < descriptions.Count; dix++) {
var d = descriptions[dix];
foreach (var item in d.Arguments) {
OpcItemDefs_.Add(new OPCItemDef(((Element) item.Value).opcItemID, true, ++hClient, VarEnum.VT_EMPTY));
((Element) item.Value).cHandle = hClient;
}
}
int[] aE;
int addCount = 0;
while (!OpcGroup_.AddItems(OpcItemDefs_.ToArray(), out OpcItemResults_)) {
//if (++addCount > 1) throw new InvalidDataException("!!!AddItems failed");
for (var i = 0; i < OpcItemResults_.Count(); i++) {
if (HRESULTS.Failed(OpcItemResults_[i].Error)) {
OpcItemDefs_.RemoveAt(i);
break;
}
}
OpcGroup_.RemoveItems(OpcItemResults_.Select(ir => ir.HandleServer).ToArray(), out aE);
}
int k = 0;
for (int j = 0; j < OpcItemDefs_.Count(); j++)
SetServerHandle(OpcItemDefs_[j].HandleClient, OpcItemResults_[k++].HandleServer);
for (int dix = 0; dix < descriptions.Count; dix++)
Console.WriteLine(descriptions[dix]);
OpcGroup_.Active = true;
Console.WriteLine("OPCFlex is running, press enter to exit");
Console.ReadLine();
OpcGroup_.DataChanged -= OnDataChange;
OpcGroup_.RemoveItems(OpcItemResults_.Select(ir => ir.HandleServer).ToArray(), out aE);
OpcGroup_.Remove(false);
OpcServer_.Disconnect();
Console.WriteLine("Bye!");
}
