IEC 62541 (OPC Unified Architecture) - 3 Additional CDVs published for commenting

IEC TC 65E just published 3 additional Committee Drafts for Vote (CDV) for commenting and voting ... also for public comments!

CDVs for circulation on 2024-02-02 also available in Public Commenting application: (https://www.iec.ch/how-get-involved/public-commenting)

Here are the CDV documents published (official voting period closes April 26, 2024):

IEC 62541-3 ED4: OPC Unified Architecture - Part 3: Address Space Model

IEC 62541-5 ED4: OPC Unified Architecture - Part 5: Information Model

IEC 62541-6 ED4: OPC Unified Architecture - Part 6: Mappings

See also the other 21 CDVs out for comments.

Be aware that these documents are the basis to define domain specific information models like in IEC 61850: MMXU.PhV.phsA for voltage of phase A (L1) in a three phase AC power system or MMXU.Hz for representing the frequency ... 

I guess that a lot of the definitions published in the 24 CDVs will not be implemented in all devices and only a subset of the implemented definitions may be used.

After some 40 years involved in the IEC TC 65 (1982 - 2001), TC 57 (2002 - today), IEC TC 88 (2001 - today), and ISO TC 184 SC5 WG2 (MMS, 1984 - 2000) I am increasingly convinced that IEC 61850 has a lot of advantages compared to other standards ...

IEC 62541 (OPC Unified Architecture) - 21 CDVs published for commenting

Dear All,

IEC TC 65E just published 21 Committee Drafts for Vote (CDV) for commenting and voting ... also for public comments!

CDVs for circulation on 2024-01-26 also available in Public Commenting application: (https://www.iec.ch/how-get-involved/public-commenting)

Here are the CDV documents published (official voting period closes April 19, 2024):

62541-1 ED1: OPC Unified Architecture - Part 1: Overview and Concepts

62541-2 ED1: OPC Unified Architecture - Part 2: Security Model

62541-4 ED4: OPC Unified Architecture - Part 4: Services

62541-7 ED4: OPC Unified Architecture - Part 7: Profiles

62541-8 ED4: OPC Unified Architecture - Part 8: Data Access

62541-9 ED4: OPC Unified Architecture - Part 9: Alarms and Conditions

62541-10 ED4: OPC Unified Architecture - Part 10: Programs

62541-11 ED3: OPC Unified Architecture - Part 11: Historical Access

62541-12 ED2: OPC Unified Architecture - Part 12: Discovery and global services

62541-13 ED3: OPC Unified Architecture - Part 13: Aggregates

62541-14 ED2: OPC Unified Architecture - Part 14: PubSub

62541-16 ED1: OPC Unified Architecture - Part 16: State Machines

62541-17 ED1: OPC Unified Architecture - Part 17: Alias Names

62541-18 ED1: OPC Unified Architecture - Part 18: Role-Based Security

62541-19 ED1: OPC Unified Architecture - Part 19: Dictionary Reference

62541-20 ED1: OPC Unified Architecture - Part 20: File Transfer

62541-21 ED1: OPC Unified Architecture - Part 21: Device Onboarding

62541-22 ED1: OPC Unified Architecture - Part 22: Base Network Model

62541-23 ED1: OPC Unified Architecture - Part 23: Common ReferenceTypes

62541-24 ED1: OPC Unified Architecture - Part 24: Scheduler

62541-100 ED2: OPC Unified Architecture - Part 100: Device Interface

It is a huge list of documents ...

I have looked through the docs and did not find any application domain specific semantic models like in IEC 61850 ... 

Hope you find some time to comment on these documents.

Enjoy!