发布于 2014-09-24 09:00:54
3楼
可以求平均值
http://support.automation.siemens.com/CN/llisapi.dll/39333120?func=ll&objId=59903037&objAction=csView&nodeid0=47071380&onlyconfigurable=on&onlyconfigurable=on&onlyconfigurable=on&onlyConfigurable=on&lang=zh&siteid=cseus&aktprim=0&extranet=standard&viewreg=CN&load=treecontent
好好学习