STEP7 V11 SP2下载——
http://www.gongyeku.com/datum/detail_2012122312461802583.html
Step7 V11 SP2下载地址
http://support.automation.siemens.com/CN/llisapi.dll?aktprim=0&lang=zh&referer=%2fCN%2f&func=cslib.csinfo&basisview=4000002&siteid=cseus&wttree=cs&treeLang=en&groupid=18886882&extranet=standard&viewreg=CN&nodeid0=47071380&objaction=csopen
Step V11 SP2 直接安装的方法:
http://blog***/more.asp?name=liaochangchu&id=148742