IEC 62439-3:2021/COR1:2023
Corrigendum 1 - Industrial communication networks - High availability automation networks - Part 3: Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR)
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About This Item
IEC 62439-3:2021/COR1:2023 is a corrigendum to the document on industrial communication networks covering High-availability Automation Networks, with specific reference to Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR). It is relevant for teams reviewing technical documentation, validating network resilience requirements, or maintaining conformity records for automation systems where uninterrupted communication is important. As a supporting document linked to IEC 62439-3:2021, it helps ensure the parent reference is used with the correct published details in engineering, procurement, and compliance workflows.
Purpose of IEC 62439-3:2021/COR1:2023
The purpose of IEC 62439-3:2021/COR1:2023 is to correct and clarify the parent technical reference for high availability automation networks using PRP and HSR. In practice, a corrigendum is used to support accurate interpretation, technical review, and documented evaluation of the original publication. For organizations managing network design, system verification, or regulatory preparation, it helps maintain alignment between engineering documentation and the authoritative source used for redundancy-related requirements.
Compliance applications of IEC 62439-3:2021/COR1:2023
This corrigendum is typically used in compliance workflows where industrial communication networks must be assessed for availability, resilience, and documented consistency. It may be relevant to automation equipment suppliers, system integrators, laboratories, and asset owners that rely on PRP or HSR-based architectures in operational environments. During technical assessment or test planning, the corrected reference supports more reliable cross-checking of specifications, procurement requirements, and conformity assessment records tied to the parent document.
Benefits of IEC 62439-3:2021/COR1:2023
Using IEC 62439-3:2021/COR1:2023 in document control and review processes helps reduce interpretation errors and supports better engineering validation. For teams working on high-availability networks, that can improve testing consistency, quality assurance, and procurement review by ensuring the correct technical source is referenced. It also supports risk management and operational consistency when redundancy mechanisms are being specified, verified, or audited as part of broader compliance and technical documentation workflows.
- Corrigendum linked to IEC 62439-3:2021 for corrected reference control
- Relevant to PRP and HSR-based industrial communication network documentation
- Supports technical review, verification activities, and conformity assessment preparation
- Useful for engineering documentation, procurement checks, and laboratory evaluation
- Publication Date: 2023-04-21
- Standard Status: Corrigendum
- Publisher: IEC
- Edition: 4
- This Version: IEC 62439-3:2021 (2023-04-21)
- Previous Version: IEC 62439-3:2021 (2021-12-15)
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