public UCMM_RR_Packet(CIPServiceCodes Service, bool IsRequest, byte[] Path, byte[] Data)
{
this.Service = (byte)Service;
if (!IsRequest)
{
this.Service = (byte)(this.Service | 0x80);
}
this.Path = Path;
this.Data = Data;
}
protected EnIPNetworkStatus WriteDataToNetwork(byte[] Path, CIPServiceCodes Service)
{
int Offset = 0;
int Lenght = 0;
byte[] packet;
Status = RemoteDevice.SetClassInstanceAttribut_Data(Path, Service, RawData, ref Offset, ref Lenght, out packet);
return(Status);
}
protected EnIPNetworkStatus ReadDataFromNetwork(byte[] Path, CIPServiceCodes Service)
{
int Offset = 0;
int Lenght = 0;
byte[] packet;
Status = RemoteDevice.GetClassInstanceAttribut_Data(Path, Service, ref Offset, ref Lenght, out packet);
if (Status == EnIPNetworkStatus.OnLine)
{
RawData = new byte[Lenght - Offset];
Array.Copy(packet, Offset, RawData, 0, Lenght - Offset);
}
return(Status);
}
public bool IsService(CIPServiceCodes Service)
{
byte s = (byte)(this.Service & 0x7F);
if (s == (byte)Service)
{
return(true);
}
if ((this.Service > 0x80) && (s == (byte)CIPServiceCodes.UnconnectedSend))
{
return(true);
}
return(false);
}
public EnIPNetworkStatus GetClassInstanceAttribut_Data(byte[] ClassDataPath, CIPServiceCodes Service, ref int Offset, ref int Lenght, out byte[] packet)
{
return(SendUCMM_RR_Packet(ClassDataPath, Service, null, ref Offset, ref Lenght, out packet));
}
public EnIPNetworkStatus SendUCMM_RR_Packet(byte[] DataPath, CIPServiceCodes Service, byte[] data, ref int Offset, ref int Lenght, out byte[] packet)
{
packet = this.packet;
if (autoRegisterSession)
{
RegisterSession();
}
if (SessionHandle == 0)
{
return(EnIPNetworkStatus.OffLine);
}
try
{
UCMM_RR_Packet m = new UCMM_RR_Packet(Service, true, DataPath, data);
Encapsulation_Packet p = new Encapsulation_Packet(EncapsulationCommands.SendRRData, SessionHandle, m.toByteArray());
Encapsulation_Packet rep;
Offset = 0;
lock (LockTransaction)
Lenght = Tcpclient.SendReceive(p, out rep, out Offset, ref packet);
String ErrorMsg = "TCP mistake";
if (Lenght > 24)
{
if ((rep.IsOK) && (rep.Command == EncapsulationCommands.SendRRData))
{
m = new UCMM_RR_Packet(packet, ref Offset, Lenght);
if ((m.IsOK) && (m.IsService(Service)))
{
// all is OK, and Offset is ready set at the beginning of data[]
return(EnIPNetworkStatus.OnLine);
}
else
{
ErrorMsg = m.GeneralStatus.ToString();
}
}
else
{
ErrorMsg = rep.Status.ToString();
}
}
Trace.WriteLine(Service.ToString() + " : " + ErrorMsg + " - Node " + EnIPPath.GetPath(DataPath) + " - Endpoint " + ep.ToString());
if (ErrorMsg == "TCP mistake")
{
return(EnIPNetworkStatus.OffLine);
}
if (Service == CIPServiceCodes.SetAttributeSingle)
{
return(EnIPNetworkStatus.OnLineWriteRejected);
}
else
{
return(EnIPNetworkStatus.OnLineReadRejected);
}
}
catch
{
Trace.TraceWarning("Error while sending reques to endpoint " + ep.ToString());
return(EnIPNetworkStatus.OffLine);
}
}
