Industrial communication networks. Fieldbus specifications - Application layer protocol specification. Type 21 elements
Industrial communication networks. Fieldbus specifications - Application layer protocol specification. Type 21 elements
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Industrial communication networks. Fieldbus specifications - Application layer protocol specification. Type 21 elements

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1   Scope

1.1   General

This part of IEC 61158 is one of a series produced to facilitate the interconnection of automation system components. It is related to other standards in the set as defined by the three-layer fieldbus reference model described in IEC 61158‑1.
This International Standard contains material specific to the Type 21 communication protocol.