IEC 61850 Tissue Database Has Been Used to Publish The Second Set Of Tissues in Force

The IEC 61850 Tissue Database is an excellent tool helping to support a high level of quality. Tissues that affect interoperability will be put in force as batches, before an amendment of the standard can be done. They will then as well be required to be implemented for conformance testing.

70 Tissues related to 13 parts are listed in the second batch! Only 18 tissues are real interoperability tissues ... 57 are editorial tissues that improve the understanding of the various parts.

Click HERE to find the link to the first and second batch.

It is highly recommended to study the tissues in some detail ... many tissues (even those that have no impact on the interoperability) contain valuable discussions ... why is this and that done ... or not ... e.g., https://iec61850.tissue-db.com/tissues/1731 

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.

IEC just Published Amendments to Three Core Parts of IEC 61850 as FDIS

Hurrah, after long wait ... now they are published:

IEC just Published amendments of the following three Core Parts of IEC 61850 as FDIS:

IEC 61850-7-2 - Services (57/2100/FDIS) - 138 pages
IEC 61850-7-3 - Common data classes (57/2101/FDIS) - 108 pages
IEC 61850-7-4 - Logical Nodes and Data Objects (57/2102/FDIS) - 422 pages

These amendments will be merged into the previous editions and made available as consolidated documents after FDIS ballot (Edition 2.1).

The consolidated documents (published as INF documents) comprise:

IEC 61850-7-2 (181 pages)
IEC 61850-7-3 (135 pages)
IEC 61850-7-4 (440 pages)

One of the most crucial issue solved now is the harmonization of definitions used in different domains like substation, protection, wind, hydro, DER, batteries, schedules, ...

NOTE: The three new documents (and the many other parts published or underway, e.g., 80-x, 90-x) make the standard series IEC 61850 even more comprehensive and MORE COMPLEX.

I hope that there will be enough people responsible for the future of the digitalization in the energy world understanding that there is no free lunch!! Education and training is key!

IEC 61850-7-2

This edition includes the following significant technical changes with respect to the previous
edition, based on almost 100 tissues ... and other issues.

IEC 61850-7-3

Compared to the second edition, this first revision of the second edition provides mainly clarifications and corrections to the second edition of IEC 61850-7-3, based on almost 100 tissues ... and other issues.

IEC 61850-7-4 

The motivation and goal of the amendment is to improve consistency of the data model over
all application domains of IEC 61850. Data (Logical Nodes, Data Objects, Data Attributes)
with the same semantics shall have the same naming where this part of IEC 61850 refers to
Logical Nodes and Data Objects and IEC 61850-7-3 to the Data Attributes.
Therefore, the amendement complements and updates the second edition of this part of
IEC 61850, which was published in 2010. It constitutes editorial revisions for consistency and
technical corrections of bugs as far as interoperability is touched.
To reach this goal and to keep it for all future as common working source a comprehensive
back-office UML version was created and will be maintained for future standard development.
The published parts of IEC 61850 such as IEC 61850-7-4, on which the amendment is based,
are generated automatically from the UML version. This allows publishing, voting and reading
the various parts of IEC 61850-7 as in the past.
This amendment includes changes with respect to IEC 61850-7-4:2010 based on almost 200 Tissues ... and other issues.

IEC 61850 Tissue Data Base - In Operation Under IEC

The IEC 61850 Tissue Data Base is in operation again - now under IEC Logo.

Click HERE for accessing the Data Base:



The registration as a new user will be possible soon.

Enjoy the crucial resources.

IEC 61850 Tissue Database is Crucial for Improving the Quality of IEC 61850

The Tissue (technical issues) Database is one of the most important means to improve the quality of the standard series IEC 61850.
When IEC published the first parts of the series in 2004 the editors used a Word document to keep track of technical issues reported to the key experts and the results of their discussions. NettedAutomation developed the Tissue Database to offer a public tool to support the standardization and quality assurance process.

The following parts have an entry in the Database:



We just added an entry to part 90-2 (Substation to Control Center communication).
Please note that the almost 1,500 entries play a crucial role in the latest parts published and in the UCAIUG testing specification. Excerpt of IEC 61850-6 Amendment 1 to Edition 2:



This list has 50+ entries referring to the Tissue Database.

Products that claim conformance with IEC 61850 have to be accompanied by the so-called "TICS" Technical Issues Conformance Statement. This is a list that describes which Technical Issues have been implemented in a specific product. It is quite important to understand, that a specific Technical Issue that has an impact on client and server (publisher and subscriber) has to be implemented on both sides!!

The test labs for IEC 61850 have to test Technical Issues - when required by the testcase. The UCAIUG maintains a list of all "green" Tissues that are integral part of UCAIUG Testing requirements.

If you have an issue with IEC 61850 I recommend to check the Database and search for the topic you are looking for. Maybe your concern has already been solved ... you find a lot of good discussions in many tissues.

NetteAutomation will continue to offer the Tissue Database for the next parts to be published, e.g., Edition 2.1 of the core documents.

Enjoy the Database.

Just published: IEC TR 61850-90-17

IEC TC 57 has published a new part of IEC 61850 in May 2017:

IEC TR 61850-90-17
COMMUNICATION NETWORKS AND SYSTEMS
FOR POWER UTILITY AUTOMATION –
Part 90-17: Using IEC 61850 to transmit power quality data

This part of IEC 61850 defines how to exchange power quality data between instruments whose functions include measuring, recording and possibly monitoring power quality phenomena in power supply systems, and clients using them in a way that is compliant to the concepts of IEC 61850.

Click HERE for a preview of the new document.

Note that the Tissue Database can be used for posting technical issues with IEC 61850-90-17. The first tissue has been registered:

Click HERE for the first tissue on part 90-17.

1,500 IEC 61850 Tissues posted since 2004

One of the crucial tools to help improving the quality of the Standard Series IEC 61850 is the so-called Tissue Database (Technical Issues):

tissues.iec61850.com

Currently 1,500 Tissues have been posted, discussed, answered, solved, ...

The Tissue #1,500 has been posted by TÜV SÜD on June 06, 2016.

The Tissue Database is open for every expert in the domain of IEC 61850. To post a tissue you need to register.

CDV of IEC 61850-6 Amendment 1 and IEC 62351-9 available for comments

IEC TC 57 has published the following documents for review:

57/1697/CDV
IEC 61850-6 A1: Amendment 1 to IEC 61850-6 Ed.2:Communication networks and systems for power utility automation -
Part 6: Configuration description language for communication in electrical substations related to IEDs

The Amendment incorporates 60 Tissues - listed in the CDV document. You can find easily what has been revised.

57/1699/CDV
IEC 62351-9: Power systems management and associated information exchange - Data and communications security -
Part 9: Cyber security key management for power system equipment

Please take some time to review both documents.
The documents should be available online for reading and for comments.
Check HERE for the access and for providing comments.

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.

UCAIUG Interoperability Report (Munich 2013) available – And Now?

IEC 61850 defines Modeling Methods, Information Models, Abstract Services, Service Mapping to MMS, Configuration Language to specify a whole System composed of several substations et cetera. Some 10 years after the publication of the first edition of the core parts (3, 6, 7-1, 7-2, 7-3, 7-4, 8-1 and 9-2) we expect the edition 2.1 of the core documents early 2014. There is a lot of progress during these 10 years of applications!

The well accepted tissue process has helped to increase the consistency of the various parts of the series and to help to reach a high level of conformity of devices and tools:

www.tissues.iec61850.com

In addition to Conformance tests it is obvious that Interoperability is one of the crucial issues that is expected by the users community. Many organizations are involved to further increase the Interoperability between the products provided by many vendors. One major step towards a higher level of interoperability is the UCAIUG Interoperability Test Session that was conducted at TÜV SÜD (Munich, Germany) the week of 27. October – 01. November 2013.

Click HERE to download the 240 page Report [pdf, 5.8 MB].

One of the crucial lessons I (and many other experts) have learned trough my long-term involvement in the standardization groups and more than 200 training courses is this: In case you are planning to use the new (IEC 61850) Technology in one of your next projects:

1. Get education and training from neutral trainers
2. Purchase or lent the devices and tools you are about to use in the real world: protection & control devices, SCADA systems, RTUs, Network Infrastructure like Switches and Routers, and Tools … and test them as a kind of “Multivendor Interoperability Test”
3. You can speed up this process by cooperating with FMTP Power Systems and NettedAutomation: They could come to you and provide the most well known and used devices and Tools and introduce Theory and Practice!!
   This helps to keep the cost low – you don’t need to figure out what to purchase … and how to use the Technology when you start.
   You would get the right support for a fast start … the most efficient way!

Please check these dates and locations:

Special Protection & Control Hands-On Training: 08.-10. Dec 2014 in Prague (Czech Republic)	Click HERE for the details
Special Protection & Control Hands-On Training: 16.-19. December 2014 in Guayaquil (Ecuador):	Click HERE for the details [pdf]
Common Hands-On Training in German: 24.-26. November 2014 (Karlsruhe) 12.-14. Januar 2015 (Karlsruhe) 23.-25. März 2015 (Karlsruhe)	Click HERE for more details

I look forward to meeting you there.

Tissue Data Base for IEC 61850-10 Edition 2 is now open

Please note that the Tissue Data Base for IEC 61850-10 Edition 2 is now open:

Click HERE to go to the part 10 Ed2 tissue data base.

The tissue data base is a very successful means to register, discuss and solve bugs, typos or other issues.

Tissue Database opened for IEC 68150-80-1, 90-1 and 90-5

Please note that we opened the IEC 61850 Tissue Database for three additional parts: 80-1, 90-1 and 90-5:

Click HERE for the IEC 61850 Tissue Database.

Tissue Database for IEC 62351 just opened

The Tissue Database for IEC 62351:

Power systems management and associated information exchange – Data and communications security

has been opened for immediate access. Nine parts have been published so far. You may post your feedback (bug reports, …) now.

Access the Tissue Database for IEC 62351.

Tissue Database for IEC 61850-90-7 Edition 1 Open

The tissue database for the new document IEC 61850-90-7 Edition 1 (2013) could be used immediately.

Tissue Database for IEC 61850-5 Edition 2 Open

The Edition 2 of IEC 61850-5 (Communication requirements for functions and device models) has been published the other day:

This second edition replaces the first edition published in 2003. It constitutes a technical revision. The major technical changes with regard to the previous edition are as follows:

• extension from substation automation systems to utility automation systems;
• including the interfaces for communication between substations (interfaces 2 and 11);
• requirements from communication beyond the boundary of the substation.

Preview of part 5 Edition 2.

The tissue database for the new document could be used immediately:

Part 5 (2013-01; Edition 2)

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.

Using ConfRev to report a change of value

The configuration revision is a very useful information for clients (Reporting) and subscribers (GOOSE and SV). It is highly recommended that a receiving IED marks the received values as invalid in case the receiver expects ConfRev=X but receives a message with a value unequal X.

The service Reporting (or GOOSE) could be used to inform receivers that there is a change in the ConfRev – long before it may receive a message with a different (incremented) value.

By the way, the functionality to “monitor” changes of control block attribute values is called “Service Tracking” and is defined in IEC 61850-7-2 Edition 2.

The Control Block Attribute ConfRev needs to become a member in a data set. This data set may have all ConfRev attributes of all control blocks as members. So, if any change is detected, a message is issued (Report or GOOSE message, or log entry posted).

It is not yet specified in IEC 61850 if the change of a value (of the ConfRev) implemented by a re-configuration of the IED (e.g., change of the data set) can be used as a trigger (dchg) to issue a report or GOOSE message or post a log entry. Because this new value may become online visible after the IED restart (to interpret the new SCL file).

It would require that the Control Block stores the last ConfRev value non-volatile; in order to figure out that the new value (from configuration tool) is larger than the old one. This is true for SV Control Blocks only, see §19.2.1.6: “A restart of the IED shall not reset the value.”

See IEC 61850 Tissue # 861.