
Industrial communication networks. Fieldbus specifications. Application layer protocol specification. Type 21 elements
出版:British Standards Institution

专家解读视频
This standard is one of a series produced to facilitate the interconnection of automation system components.
© British Standards Institution 2013
Replaces notes:
Replaces DD IEC/PAS 62573:2008 which remains current
IEC 61158-6-21 : 1.0 - Identical
EN 61158-6-21 : 2012 - Identical
IEC 61158-6-21 Ed. 1.0 - Identical