public ModbusMessage ProcessMessage(RS232Message message)
{
byte[] data = message.BinaryData;
int messageStart;
for (messageStart = 0; messageStart < data.Length; messageStart++)
if (data[messageStart] == (byte)':')
break;
int messageLength = data.Length - messageStart;
if (messageLength < MINIMUM_MESSAGE_LENGTH)
return null;
int lrc = HexHelper.DecodeHex(data[data.Length - 2], data[data.Length - 1]);
int expectedLrc = CalculateLRC(HexHelper.DecodeHexArray(data, messageStart + 1, data.Length - messageStart - 3));
if (lrc != expectedLrc)
return null;
byte address = HexHelper.DecodeHex(data[messageStart + 1], data[messageStart + 2]);
byte function = HexHelper.DecodeHex(data[messageStart + 3], data[messageStart + 4]);
byte[] messageContent = HexHelper.DecodeHexArray(data, messageStart + 5, messageLength - 7);
return new ModbusMessage(messageContent, address, function);
}
public ModbusMessage ProcessMessage(RS232Message rs232Message)
{
throw new NotImplementedException();
}