public byte[] PackData(MsgId msgId, string terminalId, byte[] data)
{
int pos = 0;
int data_len = data.Length;
byte[] arr = new byte[15 + data_len];
arr[0] = 0x7E;
arr[1] = Convert.ToByte((((int)msgId) & 0xFF00) >> 8); //消息ID，低字节
arr[2] = Convert.ToByte(((int)msgId) & 0x00FF); //消息ID高字节
// 消息体长度
arr[3] = Convert.ToByte((data_len & 0xFF00) >> 8);
arr[4] = Convert.ToByte(data_len & 0x00FF);
//终端号码
terminalId.PadLeft(12, '0');
arr[5] = Convert.ToByte(terminalId.Substring(0 * 2, 2), 16);
arr[6] = Convert.ToByte(terminalId.Substring(1 * 2, 2), 16);
arr[7] = Convert.ToByte(terminalId.Substring(2 * 2, 2), 16);
arr[8] = Convert.ToByte(terminalId.Substring(3 * 2, 2), 16);
arr[9] = Convert.ToByte(terminalId.Substring(4 * 2, 2), 16);
arr[10] = Convert.ToByte(terminalId.Substring(5 * 2, 2), 16);
// 消息流水号
Int16 serialNo = ProtocolUtil.GetSerialNo();
arr[11] = Convert.ToByte((serialNo & 0xFF00) >> 8); //流水号，低字节
arr[12] = Convert.ToByte(serialNo & 0x00FF); //流水号高字节
//数据体填充
Array.Copy(data, 0, arr, 13, data_len);
pos += 12 + data_len;
// 校验码
arr[++pos] = ProtocolUtil.XorByByte(arr, 1, 12 + data_len);
//标识位置
arr[++pos] = 0x7E;
return(ProtocolUtil.Transfer(arr));
}
