Sample 3:
1, 0001, 7AA, 2, R //First device
1, 0011, 7BB, 2, R //First device
1, 1_7AA_7BB, , , L //First device
2, 0002, 7AA, 2, R //2. device
2, 0022, 7BB, 2, R //2. device
2, 2_7AA_7BB, , , L //2. device
3, 0003, 7AA, 2, R
3, 0033, 7BB, 2, R
3, 3_7AA_7BB, , , L
4, 0004, 7AA, 2, R
4, 0044, 7BB, 2, R
4, 4_7AA_7BB, BBBB,5 , L //SerialAddress and DataLength will be ignored.
5, 000A, 7AA, 2, R //Last SN
5, 000B, 7BB, 2, R //Last SN
5, Final, , , L //Last SN