感谢您的回复，http://www.ad.siemens.com.cn/club/bbs/post.aspx?b_id=28&a_id=637284&s_id=0&num=7#anch 不够详细，就是说还没测试完吧，特别是IO状态这一块，曾经在论坛上看到过，但其数据的说明不是很清楚，如下：
PCSend：55 13 13 00 AA
0BA6Rep：06 55 11 11 4A 00 BE 8C 19 2C 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 00 00 00 04 00 00 00 00 00 00 00 E8 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 E8 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 AA
请教详细说明!!!