FCL文件是什么,能删除吗

在一个英文网页里查到：

FCL stands for Fuzzy Control Language, which is a standard for Fuzzy Control Programming published by the International Electrotechnical Commission (IEC). The specifications for the FCL syntax can be found in IEC document 61131-7. Unfortunately, this standard is not freely available and must be purchased (see www.iec.ch or www.ansi.org). However, the Draft 1.0 version from 1997 is available and I have not noticed any significant differences between the draft and the final version

FCL refers to the individual sets in a variable as TERMs. In other fuzzy logic literature you will see these referred to as sets or fuzzy subset
不用我翻译吧？
这里面还有更多详细的解释哦。http://ffll.sourceforge.net/fcl.htm