IEC 61158-5-21
IEC 61158-5-21:2019
Industrial communication networks - Fieldbus specifications - Part 5-21: Application layer service definition - Type 21 elements
IEC 61158-5-21:2019 specifies the structure and services of the type 21 IEC fieldbus Application Layer, in conformance with the OSI Basic Reference Model (ISO/IEC 7498) and the OSI Application Layer Structure (ISO/IEC 9545). This second edition cancels and replaces the first edition published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
•added Write and Read service;
•miscellaneous editorial corrections.
This edition includes the following significant technical changes with respect to the previous edition:
•added Write and Read service;
•miscellaneous editorial corrections.
CHF 365.-
Technical committee
TC 65/SC 65C Industrial networks| Publication type | International Standard |
| Publication date | 2019-04-10 |
| Edition | 2.0 |
| ICS | 25.040.40 35.100.70 35.110 |
| Stability date | 2028 |
| ISBN number | 9782832292662 |
| Pages | 80 |
| File size | 1.71 MB |