Improve the Quality of Your Standard With A Tissue Database

What is a Tissue Database? Tissue stands for Technical Issues - short Tissues.

One of the crucial challenges of maintaining and improving standard series like IEC 61850, IEC 62351, IEC 61400-25, ... is that usually standardization processes of the Standard Setting Organizations use text files (Word, pdf, ...) for publishing drafts and final documents. When it comes to manage and document errors and other problems, then quite often Excel Sheets are used ... or even just a text file.

This was the case in the IEC TC 57 regarding IEC 61850 after the first parts had been published. We often had a discussion like: Who has the latest Word Document with the Tissue Lists? When was it updated ... grrrr.

NettedAutomation GmbH developed the first version of the so-called IEC 61850 Database in 2004. 16 years later IEC uses a license of the improved tissue database (Tissue DB v. 20.7.3.1):



Click HERE for the parts overview.

For the current Edition 2.1 of part 7-2 there are eight tissues listed:



Click HERE for 7-2 Ed 2.1.

The IEC 61850 tissue database is a very helpful tool to improve the quality of the standard series IEC 61850, IEC 61400-25, and IEC 62351.

Contact NettedAutomation GmbH for an offer of a license of the NettedAutomation tissue database for your project.

Click HERE to contact NettedAutomation for a quote.

The IEC 61850 Tissue Database is a Great Resource of Hints and Background Information

The IEC 61850 tissue database is a comprehensive resource of hints and background information that can help you to understand why a particular change or correction has been implemented:
https://iec61850.tissue-db.com

Many tissues are posted that end up in the category "blue" (This is a question only). The discussion of the experts is often very helpful ... here you find answers that you may not get from the original published documents.
Example of discussion:
https://iec61850.tissue-db.com/tissue/1649



Enjoy the tissue database. As a registered user you can post tissues and see more details.

IEC CDV 61850-7-4 Ed.2.0 Amendment 1 just pulished

IEC TC 57 has just published a 269 page CDV that reflects the first amendment to IEC 61850-7-4 Ed.2.0:

IEC 61850-7-4 Ed.2.0 Amd.1: Communication networks and systems for power utility automation –
Part 7-4: Basic communication structure – Compatible logical node classes and data object classes

Everybody can read the CDV and comment online (see details below).

The commenting period closes 2016-04-15.

Compared to the second edition, this first revision of the second edition:

• Provides clarifications and corrections to the second edition of IEC 61850-7-4, based on the tissues = { 650, 671, 672, 674, 675, 676, 677, 679, 680, 682, 683, 685, 686, 689, 693, 694, 695, 696, 712, 713, 714, 715, 716, 722, 724, 725, 726, 727, 732, 734, 735, 736, 742, 743, 744, 748, 749, 772, 773, 774, 775, 776, 800, 802, 808, 819, 830, 831, 835, 838, 842, 843, 844, 849, 871, 877, 878, 879, 881, 882, 902, 908, 909, 910, 911, 912, 913, 920, 928, 932, 933, 937, 939, 940, 952, 967, 991, 1007, 1029, 1044, 1046, 1071, 1075, 1076, 1077, 1081, 1086, 1117, 1119, 1128, 1137, 1139, 1176, 1177, 1190, 1191, 1203, 1205, 1229, 1235, 1236, 1244, 1250, 1256, 1258, 1259, ... }
• Adds to each functional LN group a parent abstract Logical node where the functional nodes are children from (full object oriented model). Since all abstract LNs are in together in a common clause, the relative position of the functional LNs is not changed within their clause
• Adds new abbreviated terms
• Has extension of the list of abbreviate terms to be used for object names
• Has more precise combination rules for abbreviated terms to object names
• Has extensions by new logical nodes mainly from power quality domains and others
• Has corrections of editorial errors.

Please note that this CDV is available to the public for comments (yes: everybody can sign in and get access for personal comments!!):

Click HERE to register for public access and comments.

This allows everybody to ready the content and comment online.

Click HERE to visit the Tissue Database.

This CDV is the result of several years of key editors to reach a very high level of completeness and consistency of the information models throughout the various domains.

Note that the final result will be a new edition of 7-4: Edition 2.1 !! (not 3.0).

Congratulation to the editors for this great work!!

IEC 61850 Interoperability Test in Brussels Was a Big Success

The IEC 61850 Interoperability Test in Brussels (Belgium, at ENTSO-E) last week was a big success. The plenary meeting of the IEC TC 57 WG 10, 17 and 18 was informed about the results on Monday, October 05, 2015.

Compared to the previous IOPs in 2011 and 2013 there were more companies attending in 2015: 19/43/49. Total number of vendors that provided products to test was: 14/20/29. The number of people participating grew from 37/93 to 130 !!

Tests covered: SCL, Client/Server, GOOSE, SV, HSR/PRP, and IEEE 1588

For Client/Server 15 issues were found in 2013, in 2015 just 4. No issue was found on GOOSE.

A total of 32 issues need some attention. The issues will be posted to the tissue database if required.

The first tissues have already been posted:

http://tissue.iec61850.com/tissue.mspx?issueid=1445

http://tissue.iec61850.com/tissue.mspx?issueid=1446

http://tissue.iec61850.com/tissue.mspx?issueid=1447

http://tissue.iec61850.com/tissue.mspx?issueid=1448

The IOP at ENTSO-E has shown that IEC 61850 standard parts and products are very stable … there is no need to wait for applying IEC 61850.

1400 Tissues (Technical Issues) listed since 2004

The Tissue process is one of the crucial means to improve the quality of the various parts of the IEC 61850 standard series and helps to improve the interoperability of IEDs. Since 2004 the IEC 61850 experts have posted more than 1400 Tissues – number 1400 was posted today (2015-06-04).

The Tissue 1400 is very interesting: It is based on input from utilities (User Feedback Task Force).

This tissue proposes to remove several options in the area of how the subscription is specified in an SCL file – and to allow only ONE possibility. 

This is a good news!

I personally expect that this approach (to get rid of options) will be applied more often in the future.

Note: Many tissues are just questions that are tagged as “blue” tissues.

IEC 61850 Tissue Number 1000 Posted Today

The technical issues database is used since 2004 by the global IEC 61850 community as a single entry point for reporting, discussing, solving, and documenting problems found in the various parts of IEC 61850.

Today (2013-02-19) the tissue number 1000 has been posted:

http://tissue.iec61850.com/tissue.mspx?issueid=1000

The database is used by the industry to help improving the quality of the standards.

Congratulation to the proposer!

In case you find a problem (bug, …) please check first the tissue database to figure out if this problem has already been posted and solved – before you post an new one for the same topic.

Tissue Database for IEC 62439-3 PRP and HSR

Please not that the tissue database for the following standards is open for posting technical issues (tissues):

PRP (Parallel Redundancy Protocol) is a data communication network standardized by the International Electrotechnical Commission, Geneva, as IEC 62439-3 Clause 4

HSR (High-availability Seamless Redundancy) is a data communication network standardized by the International Electrotechnical Commission, Geneva, as IEC 62439-3 Clause 5

Access for the tissue database.

IEC 61850 Edition 1, 2, or 3 and UML modeling?

Several parts of IEC 61850 have been improved through a maintenance process for the recent years. New features have been added the recent years. But what are the differences?

NettedAutomation has analyzed the differences between Edition 1 and 2 of various parts in detail. Many experts all over have asked for a detailed analysis, presentation and discussion of the differences. The result is a new comprehensive module of the seminars (covers one or two days – depending on the needs). A few slides from the new module are shown below.

One of the crucial issues is that a specific part Edition 1 has been improved from day 1 of its publication by the tissue process. Additional features have been added.

http://tissue.iec61850.com

As of today we have parts with the old title and tag “Edition" 1”, with the new title and tag “Edition 1” and several parts with the new title and tag “Edition 2”:

A list of all published IEC 61850 parts can be found here.

As the slide exposes: There will never be an Edition 2 of the standard series IEC 61850 … some time down the road we will have parts tagged Ed1, Ed2, Ed3, Edx, …

In addition to the maintenance process, WG 10 has (after some 14 years) converted the models in IEC 61850 to UML. The UML is intended to serve as a development and maintenance tool in the future standardization process. The following picture exposes the two notations: table (left) and UML (right).

During the Editors’ meeting in Ann Arbor (December 1998) we discussed the use of UML before we published any information model !! It was a long way from first “ideas” and today’s UML model – as you can see.

 

The various parts tagged Edition 2 and the new UML models are presented and discussed during special training courses. The basics are also covered in the public seminars.