发布于 2014-05-14 15:50:47
1楼
Step E 应该是PROFIBUS ASIC 的版本号
The PROFIBUS ASICs (ASIC - Application-Specific Integrated Circuit) facilitate the connection of third-party components and systems to the PROFIBUS fieldbus
参考以下链接:http://www.automation.siemens.com/WW/forum/guests/PostShow.aspx?PostID=95241&language=en