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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
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標(biāo)準(zhǔn)編號： CEI EN 61158-5-21 : 2013
發(fā)布時(shí)間：2013/1/1 0:00:00
標(biāo)準(zhǔn)類別：Standard
出版單位：Comitato Elettrotecnico Italiano
標(biāo)準(zhǔn)頁數(shù)：80
標(biāo)準(zhǔn)簡介
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.
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