/// <summary>
/// 创建包-ping指令
/// </summary>
/// <param name="bArrTargetAddress">目的地址5个字节</param>
/// <returns></returns>
private static byte[] BuildBag_Ping(DeviceAddress objDeviceAddress)
{
if (objDeviceAddress == null || string.IsNullOrEmpty(objDeviceAddress.DeviceNo))
{
return(new byte[0]);
}
byte[] arrRtn = new byte[18];
int iIndex = 0;
//帧起始符 高位
arrRtn[iIndex++] = 0x55;
//帧起始符 低位
arrRtn[iIndex++] = 0xFF;
//数据长度 高位
arrRtn[iIndex++] = 0x00;
//数据长度 低位
arrRtn[iIndex++] = 0x0D;
//命令字
arrRtn[iIndex++] = 0x92;
//目的地址 5字节
arrRtn[iIndex++] = GetDeviceTypeByte(objDeviceAddress.DeviceType);
byte[] bArrDeviceNo = ScaleConverter.HexStr2ByteArr(objDeviceAddress.DeviceNo);
for (int i = 0; i < 4; i++)
{
arrRtn[iIndex++] = bArrDeviceNo[i];
}
//源地址 5字节
arrRtn[iIndex++] = 0x01;
arrRtn[iIndex++] = 0x00;
arrRtn[iIndex++] = 0x00;
arrRtn[iIndex++] = 0x00;
arrRtn[iIndex++] = 0x00;
//序号 2字节 BCD码：0～9999（每次序号不一样）
byte[] bArrPingNum = ScaleConverter.Int2ByteArr(objDeviceAddress.PingNum);
arrRtn[iIndex++] = bArrPingNum[1];
arrRtn[iIndex++] = bArrPingNum[0];
//CRC8校验
arrRtn[iIndex++] = CRC8A.GetCRC8(arrRtn, 0, arrRtn.Length - 1);
return(arrRtn);
}