public static bool Check(byte[] buffer)
{
bool success = false;
byte lrsSet = LRC.Lrc(buffer, buffer.Length - 1);
if (lrsSet == buffer[buffer.Length - 1])
{
success = true;
}
return(success);
}
public byte[] MakeBaseRequest0X48(UInt16 u16AddressForReading, UInt16 u16CountOfRegistersForReading, UInt16 u16AddressForWriting, UInt16 u16CountOfRegistersForWrit, UInt16 u16CountOfBytesForWrit, UInt16 u16RequestNumber, byte[] registersForWrit = null)
{
List <byte> bytes = new List <byte>();
bytes.Add(NetworkAddress);
bytes.Add(0x48);
bytes.AddRange(BitConverter.GetBytes(u16AddressForReading).Reverse()); //Нач-ый адрес для чтения
bytes.AddRange(BitConverter.GetBytes(u16CountOfRegistersForReading).Reverse()); //Количество регистров для чтения
bytes.AddRange(BitConverter.GetBytes(u16AddressForWriting).Reverse()); //Нач-ый адрес для записи
bytes.AddRange(BitConverter.GetBytes(u16CountOfRegistersForWrit).Reverse()); //Количество регистров для записи
bytes.AddRange(BitConverter.GetBytes(u16CountOfBytesForWrit).Reverse()); //Кол-во байт для записи
bytes.AddRange(BitConverter.GetBytes(u16RequestNumber).Reverse()); //Номер запроса
if (u16CountOfRegistersForWrit != 0)
{
bytes.AddRange(registersForWrit); //1,2,..,N-ый регистр для записи
}
byte lrc = LRC.Lrc(bytes.ToArray(), bytes.Count);
bytes.Add(lrc);
List <byte> sendBytes = new List <byte>();
sendBytes.AddRange(Encoding.ASCII.GetBytes(string.Format(":{0}", string.Join("", bytes.Select(b => b.ToString("X2"))))));
sendBytes.Add(0x0D); sendBytes.Add(0x0A); //перевод строки
return(sendBytes.ToArray());
}
public byte[] MakeBaseRequest0X03(UInt16 u16AddressForReading, UInt16 u16CountOfRegistersForReading)
{
List <byte> bytes = new List <byte>();
bytes.Add(NetworkAddress);
bytes.Add(0x03);
bytes.AddRange(BitConverter.GetBytes(u16AddressForReading).Reverse()); //Нач-ый адрес для чтения
bytes.AddRange(BitConverter.GetBytes(u16CountOfRegistersForReading).Reverse()); //Количество регистров для чтения
byte lrc = LRC.Lrc(bytes.ToArray(), bytes.Count);
bytes.Add(lrc);
List <byte> sendBytes = new List <byte>();
sendBytes.AddRange(Encoding.ASCII.GetBytes(string.Format(":{0}", string.Join("", bytes.Select(b => b.ToString("X2"))))));
sendBytes.Add(0x0D); sendBytes.Add(0x0A); //перевод строки
return(sendBytes.ToArray());
}
private dynamic Send(byte[] data, int attempts_total = 4)
{
dynamic answer = new ExpandoObject();
answer.success = false;
answer.error = string.Empty;
try
{
answer.errorcode = DeviceError.NO_ERROR;
byte[] bufferASCII = null;
byte[] buffer = null;
for (var attempts = 0; attempts < attempts_total && answer.success == false; attempts++)
{
/*buffer = new byte[] {0x01,0x48,00,0xDA,00,00,0x0B,0x0C,04,0x12,0x88,06,0x42,0xA4,0xA1,0x2D,0x3F,0x16,0x9F,0xBE,0x40,04,0xC0,0x6F,0x40,00,0x2F,0xB1,0x42,0x60,0xD6,0xE6,0x3E,0xC8,0xDF,0x3B,0x40,03,0xF2,0xE1,0x40,01,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,
* 00,00,00,00,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,0xB3,0x70,0x41,0xD9,00,00,0x7F,0xF0,0xB1,06,0x3E,0x6E,00,00,0x7F,
* 0xF0,00,00,0x7F,0xF0,00,01,00,00,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,00,00,00,00,0x7F,0xF0,00,00,0x7F,0xF0,00,00,0x7F, 0xF0,00,00,0x7F,0xF0,00,01,00,00,00,00,0x7F,0xF0,00,00,00,00,00,00,00,00,00,00,00,00,00,0x80,00,00,00,00,
* 00,00,00,00,06,00,00,00,0x0C,00,0x0B,00,00,00,0xEE,0x38,00,00,00,00,00,00,00,00,0xCD};
*
* if (buffer[0] != NetworkAddress)
* {
* answer.error = "Несовпадение сетевого адреса";
* answer.errorcode = DeviceError.ADDRESS_ERROR;
* }
* else
* {
* answer.success = true;
* answer.error = string.Empty;
* answer.errorcode = DeviceError.NO_ERROR;
* }*/
bufferASCII = SendSimple(data);
if (bufferASCII.Length == 0)
{
answer.error = "Нет ответа";
answer.errorcode = DeviceError.NO_ANSWER;
}
else
{
if (bufferASCII.Length < 4)
{
answer.error = "В кадре ответа не может содежаться менее 4 байт";
answer.errorcode = DeviceError.TOO_SHORT_ANSWER;
}
else if (bufferASCII[0] != 0x3A || (bufferASCII[bufferASCII.Length - 2] != 0x0d && bufferASCII[bufferASCII.Length - 1] != 0x0a))
{
answer.error = "Отсутствуют начало и конец пакета";
answer.errorcode = DeviceError.PACKET_ERROR;
}
buffer = Helper.ASCIItoBytes(bufferASCII.Skip(1).Take(bufferASCII.Count() - 3).ToArray());
if (!LRC.Check(buffer))
{
answer.error = "Контрольная сумма пакета не сошлась";
answer.errorcode = DeviceError.CRC_ERROR;
}
else if (buffer[0] != NetworkAddress)
{
answer.error = "Несовпадение сетевого адреса";
answer.errorcode = DeviceError.ADDRESS_ERROR;
}
else
{
answer.success = true;
answer.error = string.Empty;
answer.errorcode = DeviceError.NO_ERROR;
}
}
}
if (answer.success)
{
if (buffer[1] == 0x48)
{
answer.Body = buffer.Skip(6).ToArray();
}
else if (buffer[1] == 0x03)
{
answer.Body = buffer.Skip(3).ToArray();
}
else
{
answer.success = false;
answer.error = "Нет такой команды";
}
answer.NetworkAddress = buffer[0];
}
return(answer);
}
catch
{
answer.error = "Send exception";
answer.errorcode = DeviceError.DEVICE_EXCEPTION;
return(answer);
}
}