帮我看看这段pdu
rokyo 2004-09-24 03:15:35 ^SMGR: 2,,91
00 SAC
51 FO
FF MR
00 DA
80 PID
00 DCS
00 VP
A7 怎么多了一位?还是我理解有误?
5E060804001902022E72BA9D76BBC8E9B68B9C6EBBCAEC74DB454EB75DE4F4D99D7EBBC8E9B62BED7691D36D1739DD76B5D36C573B4D76B5D3EB741BED3EB35DEEB38B9C6EBBD8E970DA7D9EBFCFEC733B7DA601