internal byte[] ReadDLMSPacket(GXDLMSClient cosem, Gurux.Common.IGXMedia media, byte[] data, int wt)
{
if (data == null)
{
return null;
}
ReceiveParameters<byte[]> args = new ReceiveParameters<byte[]>()
{
Eop = (byte)0x7E,
Count = 5,
WaitTime = wt
};
if (cosem.InterfaceType == InterfaceType.Net)
{
args.Eop = null;
args.Count = 8;
args.AllData = true;
}
int pos = 0;
bool succeeded = false;
lock (media.Synchronous)
{
media.Send(data, null);
while (!succeeded && pos != 3)
{
succeeded = media.Receive(args);
if (!succeeded)
{
//Try to read again...
if (++pos != 3)
{
System.Diagnostics.Debug.WriteLine("Data send failed. Try to resend " + pos.ToString() + "/3");
continue;
}
string err = "Failed to receive reply from the device in given time.";
GXLogWriter.WriteLog(err, (byte[])args.Reply);
throw new Exception(err);
}
}
//Loop until whole m_Cosem packet is received.
while (!(succeeded = cosem.IsDLMSPacketComplete(args.Reply)))
{
if (!media.Receive(args))
{
//Try to read again...
if (++pos != 3)
{
System.Diagnostics.Debug.WriteLine("Data receive failed. Try to resend " + pos.ToString() + "/3");
continue;
}
string err = "Failed to receive reply from the device in given time.";
GXLogWriter.WriteLog(err, (byte[])args.Reply);
throw new Exception(err);
}
}
}
object[,] errors = cosem.CheckReplyErrors(data, args.Reply);
if (errors != null)
{
int error = (int)errors[0, 0];
throw new GXDLMSException(error);
}
return args.Reply;
}
/// <summary>
/// Read DLMS Data from the device.
/// </summary>
/// <remarks>
/// If access is denied return null.
/// </remarks>
/// <param name="data">Data to send.</param>
/// <returns>Received data.</returns>
public byte[] ReadDLMSPacket(byte[] data, int tryCount)
{
if (data == null)
{
return(null);
}
object eop = (byte)0x7E;
//In network connection terminator is not used.
if (m_Cosem.InterfaceType == InterfaceType.Net && Media is GXNet && !Parent.UseRemoteSerial)
{
eop = null;
}
int pos = 0;
bool succeeded = false;
ReceiveParameters <byte[]> p = new ReceiveParameters <byte[]>()
{
AllData = false,
Eop = eop,
Count = 5,
WaitTime = Parent.WaitTime * 1000,
};
lock (Media.Synchronous)
{
if (data != null)
{
Media.Send(data, null);
}
while (!succeeded && pos != 3)
{
succeeded = Media.Receive(p);
if (!succeeded)
{
//Try to read again...
if (++pos != tryCount)
{
//If Eop is not set read one byte at time.
if (p.Eop == null)
{
p.Count = 1;
}
System.Diagnostics.Debug.WriteLine("Data send failed. Try to resend " + pos.ToString() + "/3");
Media.Send(data, null);
continue;
}
string err = "Failed to receive reply from the device in given time.";
GXLogWriter.WriteLog(err, p.Reply);
throw new Exception(err);
}
}
//Loop until whole COSEM packet is received.
while (!m_Cosem.IsDLMSPacketComplete(p.Reply))
{
//If Eop is not set read one byte at time.
if (p.Eop == null)
{
p.Count = 1;
}
if (!Media.Receive(p))
{
//Try to read again...
if (++pos != tryCount)
{
System.Diagnostics.Debug.WriteLine("Data send failed. Try to resend " + pos.ToString() + "/3");
continue;
}
string err = "Failed to receive reply from the device in given time.";
GXLogWriter.WriteLog(err, p.Reply);
throw new Exception(err);
}
}
}
GXLogWriter.WriteLog("Received data", p.Reply);
object errors = m_Cosem.CheckReplyErrors(data, p.Reply);
if (errors != null)
{
object[,] arr = (object[, ])errors;
int error = (int)arr[0, 0];
if (error == -1)
{
//If data is reply to the previous packet sent.
//This might happens sometimes.
if (m_Cosem.IsPreviousPacket(data, p.Reply))
{
return(ReadDLMSPacket(null));
}
else
{
throw new Exception(arr[0, 1].ToString());
}
}
throw new GXDLMSException(error);
}
return(p.Reply);
}
/// <summary>
/// Read DLMS Data from the device.
/// </summary>
/// <param name="data">Data to send.</param>
/// <returns>Received data.</returns>
public byte[] ReadDLMSPacket(byte[] data)
{
if (data == null)
{
return(null);
}
object eop = (byte)0x7E;
//In network connection terminator is not used.
if (Client.InterfaceType == InterfaceType.Net && Media is GXNet)
{
eop = null;
}
int pos = 0;
bool succeeded = false;
ReceiveParameters <byte[]> p = new ReceiveParameters <byte[]>()
{
AllData = true,
Eop = eop,
Count = 5,
WaitTime = WaitTime,
};
lock (Media.Synchronous)
{
while (!succeeded && pos != 3)
{
WriteTrace("<- " + DateTime.Now.ToLongTimeString() + "\t" + GXCommon.ToHex(data, true));
Media.Send(data, null);
succeeded = Media.Receive(p);
if (!succeeded)
{
//If Eop is not set read one byte at time.
if (p.Eop == null)
{
p.Count = 1;
}
//Try to read again...
if (++pos != 3)
{
System.Diagnostics.Debug.WriteLine("Data send failed. Try to resend " + pos.ToString() + "/3");
continue;
}
throw new Exception("Failed to receive reply from the device in given time.");
}
}
//Loop until whole Cosem packet is received.
while (!Client.IsDLMSPacketComplete(p.Reply))
{
//If Eop is not set read one byte at time.
if (p.Eop == null)
{
p.Count = 1;
}
if (!Media.Receive(p))
{
//Try to read again...
if (++pos != 3)
{
System.Diagnostics.Debug.WriteLine("Data send failed. Try to resend " + pos.ToString() + "/3");
continue;
}
throw new Exception("Failed to receive reply from the device in given time.");
}
}
}
WriteTrace("-> " + DateTime.Now.ToLongTimeString() + "\t" + GXCommon.ToHex(p.Reply, true));
object errors = Client.CheckReplyErrors(data, p.Reply);
if (errors != null)
{
object[,] arr = (object[, ])errors;
int error = (int)arr[0, 0];
throw new GXDLMSException(error);
}
return(p.Reply);
}