CEI EN 61158-5-21 : 2013被替代
INDUSTRIAL COMMUNICATION NETWORKS - FIELDBUS SPECIFICATIONS - PART 5-21: APPLICATION LAYER SERVICE DEFINITION - TYPE 21 ELEMENTS
出版：Comitato Elettrotecnico Italiano
专家解读视频
基本信息
标准编号： CEI EN 61158-5-21 : 2013
发布时间：2013/1/1 0:00:00
标准类别：Standard
出版单位：Comitato Elettrotecnico Italiano
标准页数：80
标准简介
Gives user programs with a means to access the fieldbus communication environment. In this respect, the FAL can be considered a window between corresponding application programs.
替代本标准的新标准
