void InitSerial()
{
GXSerial serial = Media as GXSerial;
byte Terminator = (byte)0x0A;
if (serial != null && InitializeIEC)
{
serial.BaudRate = 300;
serial.DataBits = 7;
serial.Parity = Parity.Even;
serial.StopBits = StopBits.One;
}
Media.Open();
//Query device information.
if (Media != null && InitializeIEC)
{
string data = "/?!\r\n";
if (Trace)
{
Console.WriteLine("IEC sending:" + data);
}
ReceiveParameters <string> p = new ReceiveParameters <string>()
{
Eop = Terminator,
WaitTime = WaitTime
};
lock (Media.Synchronous)
{
WriteTrace("<- " + DateTime.Now.ToLongTimeString() + "\t" + GXCommon.ToHex(ASCIIEncoding.ASCII.GetBytes(data), true));
Media.Send(data, null);
if (!Media.Receive(p))
{
//Try to move away from mode E.
try
{
GXReplyData reply = new GXReplyData();
ReadDLMSPacket(Client.DisconnectRequest(), reply);
}
catch (Exception)
{
}
data = (char)0x01 + "B0" + (char)0x03;
Media.Send(data, null);
p.Count = 1;
if (!Media.Receive(p))
{
}
data = "Failed to receive reply from the device in given time.";
Console.WriteLine(data);
throw new Exception(data);
}
WriteTrace("-> " + DateTime.Now.ToLongTimeString() + "\t" + GXCommon.ToHex(ASCIIEncoding.ASCII.GetBytes(p.Reply), true));
//If echo is used.
if (p.Reply == data)
{
p.Reply = null;
if (!Media.Receive(p))
{
//Try to move away from mode E.
GXReplyData reply = new GXReplyData();
ReadDLMSPacket(Client.DisconnectRequest(), reply);
if (serial != null)
{
data = (char)0x01 + "B0" + (char)0x03;
Media.Send(data, null);
p.Count = 1;
Media.Receive(p);
serial.BaudRate = 9600;
data = (char)0x01 + "B0" + (char)0x03 + "\r\n";
Media.Send(data, null);
p.Count = 1;
Media.Receive(p);
}
data = "Failed to receive reply from the device in given time.";
Console.WriteLine(data);
throw new Exception(data);
}
WriteTrace("-> " + DateTime.Now.ToLongTimeString() + "\t" + GXCommon.ToHex(ASCIIEncoding.ASCII.GetBytes(p.Reply), true));
}
}
Console.WriteLine("IEC received: " + p.Reply);
if (p.Reply[0] != '/')
{
p.WaitTime = 100;
Media.Receive(p);
throw new Exception("Invalid responce.");
}
string manufactureID = p.Reply.Substring(1, 3);
UpdateManufactureSettings(manufactureID);
char baudrate = p.Reply[4];
int BaudRate = 0;
switch (baudrate)
{
case '0':
BaudRate = 300;
break;
case '1':
BaudRate = 600;
break;
case '2':
BaudRate = 1200;
break;
case '3':
BaudRate = 2400;
break;
case '4':
BaudRate = 4800;
break;
case '5':
BaudRate = 9600;
break;
case '6':
BaudRate = 19200;
break;
default:
throw new Exception("Unknown baud rate.");
}
Console.WriteLine("BaudRate is : " + BaudRate.ToString());
//Send ACK
//Send Protocol control character
byte controlCharacter = (byte)'2';// "2" HDLC protocol procedure (Mode E)
//Send Baudrate character
//Mode control character
byte ModeControlCharacter = (byte)'2';//"2" //(HDLC protocol procedure) (Binary mode)
//Set mode E.
byte[] arr = new byte[] { 0x06, controlCharacter, (byte)baudrate, ModeControlCharacter, 13, 10 };
Console.WriteLine("Moving to mode E.", arr);
lock (Media.Synchronous)
{
WriteTrace("<- " + DateTime.Now.ToLongTimeString() + "\t" + GXCommon.ToHex(arr, true));
Media.Send(arr, null);
p.Reply = null;
if (!Media.Receive(p))
{
//Try to move away from mode E.
GXReplyData reply = new GXReplyData();
ReadDLMSPacket(Client.DisconnectRequest(), reply);
data = "Failed to receive reply from the device in given time.";
Console.WriteLine(data);
throw new Exception(data);
}
WriteTrace("-> " + DateTime.Now.ToLongTimeString() + "\t" + GXCommon.ToHex(ASCIIEncoding.ASCII.GetBytes(p.Reply), true));
Console.WriteLine("Received: " + p.Reply);
if (serial != null)
{
System.Threading.Thread.Sleep(400);
serial.Close();
serial.BaudRate = BaudRate;
serial.DataBits = 8;
serial.Parity = Parity.None;
serial.StopBits = StopBits.One;
System.Threading.Thread.Sleep(400);
serial.Open();
serial.ResetSynchronousBuffer();
}
}
}
}
