IEC 61158-6-21 Ed. 2.0 b:2019

Industrial communication networks - Fieldbus specifications - Part 6-21: Application layer protocol specification - Type 21 elements

International Electrotechnical Commission, 06/20/2019

Publisher: IEC

File Format: PDF

$183.00$367.00

Description

Published:20/06/2019

Pages:111

File Size:1 file , 2.1 MB

Note:This product is unavailable in Ukraine, Russia, Belarus

IEC 61158-6-21:2019 specifies the protocol of the Type 21 fieldbus application layer, in conformance with the OSI Basic Reference Model (ISO/IEC 7498-1) and the OSI application layer structure (ISO/IEC 9545). It defines the protocol provided to define the wire-representation of the service primitives defined in IEC 61158-5-21:2010, and the externally visible behavior associated with their transfer.

More IEC standard pdf

IEC 60352-6 Ed. 2.0 b:2022

Solderless connections - Part 6: Insulation piercing connections - General requirements, test methods and practical guidance

$139.00 $278.00

IEC 62788-1-4 Ed. 1.1 b:2020

Measurement procedures for materials used in photovoltaic modules - Part 1-4: Encapsulants - Measurement of optical transmittance and calculation of the solar-weighted photon transmittance, yellowness index, and UV cut-off wavelength CONSOLIDATED EDITION

$114.00 $228.00

IEC 62281 Amd.1 Ed. 4.0 b:2021

Amendment 1 - Safety of primary and secondary lithium cells and batteries during transport

$6.00 $13.00

IEC 60794-1-401 Ed. 1.0 en:2021

Optical fibre cables - Part 1-401: Generic specification - Basic optical cable test procedures - Electrical test methods - Short-circuit test (for OPGW, OPPC and OPAC), Method H1

$47.00 $95.00