NEN EN IEC 61158-4-21 : 2012
Current
Current
The latest, up-to-date edition.
INDUSTRIAL COMMUNICATION NETWORKS - FIELDBUS SPECIFICATIONS - PART 4-21: DATA-LINK LAYER PROTOCOL SPECIFICATION - TYPE 21 ELEMENTS
Published date
01-12-2013
Publisher
Defines basic time-critical data communications between devices in an automated environment.
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