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IEC 61158-1 ED4

Industrial networks - Fieldbus specifications - Part 1: Overview and guidance for the IEC 61158 and IEC 61784 series

General information

30.99     Aug 4, 2026

TCDV    Oct 29, 2027

IEC

TC 65/SC 65C

International Standard

25.040.40     33.040.40     35.100.05  

Life cycle

PREVIOUSLY

PUBLISHED
IEC 61158-1:2023 ED3

NOW

IN_DEVELOPMENT
IEC 61158-1 ED4
30.99 CD approved for registration as DIS
Aug 4, 2026