In the compiling module, the thesis depicts the PLC's Instruction List Language grammar with the help of Extendable Backus Normal Form which provides a foundation for compiling. 在论文的编译模块,论文对PLC的指令表语言的文法用EBNF(扩展的巴科斯诺尔范式)进行了详细的描述,为后面的编译处理提供了依据。
After defining the alarm event using Backus Normal Form ( BNF), it puts forward an event correlation model with Petri net, and using this model designs the alarm event correlation module. 在使用巴柯斯范式定义了告警事件的基础上,本文提出了一种基于Petri网的事件关联模型,并采用该模型完成了告警关联模块的设计。
⑷ We design and implement the inquiry processing module and describe the Backus normal form of query language in detail. ⑷设计并实现了NHX的查询处理模块,详细给出了查询语言的巴克斯范式。