充电报文解析：aa f5 0f 00 00 f4 67 00 00 00 00 00 02 00 69 aa f5 f1 00 02 f4 68 00 00 00 00 00 33 32 31 30 38 31 37 39 37 30 30 38 31 30 30 31 0d 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 02 01 02 56 0

这是一串充电报文，其中包含了充电器和电动汽车之间的通信信息。以下是每个报文的解析：

aa f5 f1 00 02 f4 68 00 00 00 00 00 33 32 31 30 38 31 37 39 37 30 30 38 31 30 30 31 0d 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 02 01 02 56 00 00 00 00 02 28 10 00 00 00 00 00 00 00 00 00 00 87 0e 54 05 d0 10 55 05 02 d7 0f d5 0f ed ed 00 00 00 00 00 00 1e 00 69 07 00 00 52 10 00 00 7e c1 ca 04 9a 21 d1 04 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f8 08 06 03 00 00 00 00 00 00 00 00 00 00 00 00 00 1b 4c 52 57 59 47 43 46 53 58 50 43 38 31 31 39 37 39 00 00 4d 41 32 30 58 59 32 59 34 32 30 32 33 30 34 30 35 31 36 31 38 32 38 33 31 31 33 00 00 00 00 00 28 10 00 00 00 00 00 00 00 93

aa：开始标志位
f5：报文长度
f1：报文类型，表示为电动汽车发送的启动充电请求应答报文
00 02：保留字段
f4 68：电动汽车地址
00 00 00 00：保留字段
33 32 31 30 38 31 37 39 37 30 30 38 31 30 30 31：电动汽车VIN码
0d 0a：回车换行
00 00 00 00 00 00 00 00 00 00 00 00 00 00 02：保留字段
02：充电枪口号
01：充电模式，表示为直流充电
02：充电参数，表示为最高充电电压和最高充电电流
56 00 00 00 00：保留字段
02 28 10 00 00 00 00 00 00 00 00 00 00 87 0e 54 05 d0 10 55 05 02 d7 0f d5 0f ed ed：充电参数，包括最大输出电压、最大输出电流、最大输入电压、最大输入电流等
00 00 00 00 00 00 1e 00：预留字段和充电时间
69：结束符