Abstract

IEEE 1815 (DNP3 - Distributed Network Protocol) is the de facto communication protocol used at the distribution and transmission level in the North American power grid. However, DNP3 is not fully capable of enabling all foreseen Smart Grid functions. Nevertheless the Smart Grid must accommodate and build upon the legacy systems of today’s power grid. The tasks of this PAP include developing 1815 (DNP3) and IEC 61850 mapping documents including guidelines for achieving interoperable integration of equipment using DNP3 with equipment using IEC 61850 by Q4 - 2011.

Value Proposition

Bridging the power delivery communication standards from current standards to more feature rich standards which will accelerate the implementation of the Smart Grid. Expected benefits include reduced capital and lifecycle costs, improved reliability and the enablement of new applications.

PAP 12 Standards: Status as of September 20, 2012

Status of PAP12: Mapping IEEE 1815 (DNP3) to IEC 61850 Objects

Updated October 5. 2012

Overall PAP Status:

A# Current Activities and Accomplishments A20 2012-02-09 The DNP Technical Committee has completed and updated the new (DNP3) Security Authentication Specification Version 5 which is now included in ballot version of IEEE Std P1815-2012. The DNP User Group had a successful vote on the new Specification at their annual meeting on January 24, 2012. A21 2012-02-09 The DNP Technical Committee and IEEE WG C12 have completed preparations for the IEEE sponsor ballot process of IEEE Std P1815 - 2012. Balloting began on January 11th for 60 days ending on March 10, 2012. It is anticipated that this will lead to publication in Q3 of 2012. A22 2011-02-09 IEEE WG C14 has continued to accomplish a great deal of work on the mapping specification IEEE P1815.1 (mapping IEEE Std 1815 to IEC 61850). The document is nearing completion of the IEEE WG review. The WG voted to modify the PAR to include cyber security. Final updates and a definition section are required prior to sponsor ballot. IEEE balloting is anticipated in late Q1 of 2012 and publication in Q3 of 2012. A18 2011-12-30 The PAPWG is continuing to coordinate with the SGAC to develop their preliminary detailed review of IEEE P1815.1.. A19 2011-12-30 Ongoing collaboration between IEEE WG C14 and the IEC TC 57 WG10 is necessary and will continue as the convenor of WG10 is actively involved with WG C14.	S D# Deliverable D1 Use Case Diagrams and Data Flow Diagrams D2 Scope Description and Outline D3 Use Case Descriptions and Requirements D4 IEEE Std 1815 (DNP3) D11 IEEE PAR for IEEE P1815.1 mapping specification D12 Draft IEEE P1815.1 mapping specification D13 IEEE IEEE 1815.1 mapping specification published as an IEEE standard D5 IEC 61850-80-2 (Joint Logo) New Work Item Proposal D6 IEC 61850-80-2 (Joint Logo) Mapping Specification published D7 DNP3 Application Note - IEC 61850 Integration D8 Changes to IEC 61580 Specifications D9 Changes to DNP3 Specifications D10 Example DNP XML and SCL files
I# Issues, Concerns & Help Needed 1 A Technical Champion is needed to expedite progress; NIST is no longer funding this position	S T# PMO PAP Milestones Due Actual Resp D# TPMO1 PAP Initiation 2009-09 2009-09 SGIP                   The "A" TPMO Tasks listed below are for IEEE Std 1815TM – 2010   A-TPMO2 SSO Identified 2009-11 2009-11 SGIP   A-TPMO3 Requirements Handoff to SSO 2010-05 2010-05 SGIP   A-TPMO4 Standards Handback to PAPWG from SSO 2011-10 2011-10 SDO D4, D6, D7 A-TPMO5 GB/SGIP Vote 2011-11 2011-11 Administrator   A-TPMO6 SGIP Plenary Vote 2011-12 2011-12 Administrator   A-TPMO7 Post to Catalog or IKB 2012-01 2011-12 PAP12WG                   The "B" TPMO Tasks listed below are for IEEE P1815.1   B-TPMO2 SSO Identified 2009-11 2009-11 SGIP   B-TPMO3 Requirements Handoff to SSO 2010-05 2010-05 SGIP   B-TPMO4 Standards Handback to PAPWG from SSO 2012-11   SDO D4, D6, D7 B-TPMO5 GB/SGIP Vote 2013   Administrator   B-TPMO6 SGIP Plenary Vote 2013   Administrator   B-TPMO7 Post to Catalog or IKB 2013   PAP12WG   B-TPM08 Seek dual logo with the IEC 2013   PAP12WG                 TPMO9 Close PAP 2013   PAP12WG   S T# PAP Work Tasks Due Actual Resp D# T1 Create a proposed outline for a new scoping document. Jan-2010 Jan-2010 Ron Farquharson D2 T2 Create data flow diagrams Mar-2010 Mar-2010 Grant Gilchrist D1 T3 Create drafts of the use case description based on the topology diagrams Apr-2010 Apr-2010 Grant Gilchrist D3 T4 Support IEEE PES Substations WG-C12 with IEEE P1815 - new IEEE standard for DNP May-2010 May-2010 Ron Farquharson, Lee Smith, Parker McCauley D6 T5 Define what key data types are required for SCADA May-2010 May-2010 Rick Murphy D7 T6 Modify existing architecture diagrams to add DNP to field devices, electronic security perimeter Apr-2010 Apr-2010 Rick Murphy D1 T7 Locate example mappings (existing products) for DNP3 to IEC61850 October-2010 Oct-2010 Parker McCauley D10 T8 Finalize outline for the IEC 61850-80-2 Technical Report (Mapping DNP with 61850) September-2010 Sept-2010 Grant Gilchrist / Christoph Brunner D6 T9 Finalize outline for the (DNP Technical Committee sponsored) guideline for mapping DNP3 with IEC 61850. July 2011 August 2011 Rick Murphy D7 T10 Develop PAR for new IEEE standard November-2010 Dec-2010 Lee Smith / Ron Farquharson D11 T11 Develop initial draft IEEE P1815.1 mapping specification January 2011 January 2011 NIST Contractor (ESTA/Quanta) & IEEE C14 D12 T12 Complete the development of the full draft of P1815.1 and vote on the document May-2012   IEEE WG C14 D12 T13 Conduct IEEE sponsor ballot process for P1815.1 and complete ballot comment resolutions July-2012   IEEE WG C14 D12 T14 Submit final draft of IEEE 1815.1 for publication August-2012   IEEE WG C14 D12 T15 Develop the New Work Item Proposal for the IEC 61850-80-2 technical specification. Sept-2012   Christoph Brunner D5
Status Schedule Deliverables Resources January 2010 February 2010 March 2010 April 2010 May 2010 June 2010 July 2010 August 2010 September 2010 October 2010 November 2010 December 2010 January 2011 February 2011 March 2011 April 2011 May 2011 June 2011 July 2011 August 2011 September 2011 October 2011 November 2011 December 2011 January 2012 February 2012 March 2012 April 2012 May 2012 June 2012 July 2012 Aug 2012 Sep2012 Oct 2012 Key: STATUS LEDs -- complete=, on target=, caution=, late=

Task Details

These tasks have been revised and dates have been changed.

Description:

There is an urgent need for distribution and transmission communication networks currently using the DNP3 protocol to support the exchange of larger volumes of data (with low latency/time delays) necessary to achieve new Smart Grid capabilities. This action plan focuses on developing the means to enable transport of select Smart Grid data and related services over legacy DNP3 networks. This will be accomplished, in part, by defining a method to map the exchange of certain data types and services between DNP3 and the newer IEC 61850 Standard for Communication Networks and Systems in Substations. IEC 61850 is considered to be a standard better suited to support Smart Grid functions. IEC 61850 is a comprehensive standard for substation automation that supports monitoring and control of grid equipment (relays, circuit breakers, transformers) as well as renewable energy resources. Many of the new Smart Grid deployments, including those funded under Department of Energy Smart Grid grants programs, will require rapid, high-bandwidth communications that are better supported by IEC 61850. The tasks of this action plan include performing a gap analysis to identify the extent to which DNP3 meets Smart Grid requirements. Guidelines for achieving interoperable integration of DNP3 with IEC 61850 and other Smart Grid standards will be produced in 2010.

Objectives:

• Agree upon a consistent definition and/or algorithm to map a selected subset of IEC 61850 information objects to corresponding DNP3 data objects (May 2010).
• Provide a method to map between DNP3 data objects and IEC 61850 information objects. Because DNP3 uses less-specific semantics than IEC 61850, this is only an approximate mapping. The DNP3 specification (Volume 8 clause 8.4 and its Appendix 1 clause 2) presents the approach recommended by the DNP3 Technical Committee, which uses XML to perform this mapping. This DNP mapping approach is referenced in Annex E of IEC 61400-25-4 (June 2010).
• Define a proposed migration path forward from current DNP only systems to hybrid implementations and ultimately to IEC 61850 only systems.

Why:

Data acquisition consists of three types of data: binary (digital) inputs, analog inputs, and counters. Supervisory control consists of commands for both digital and analog equipment. DNP3 was designed for low-bandwidth Supervisory Control and Data Acquisition (SCADA) operations that control grid equipment. Although this protocol allows any DNP data to be transported between two points, the semantic content of the messages depends upon lists of tables, which are not machine readable. In addition, mapping of objects in each direction presents difficult challenges. The goal is to ensure that select data is seamlessly transported between devices and readily used by them, even when there are communication constraints imposed by the DNP3 protocol.

Where:

Transmission and distribution domains at the application layer.

How:

The integration of DNP3 and IEC 61850 systems will be accomplished by the insertion of protocol translators at the Master/Client side. In general, these protocol translators will consist of a configurable software module. The key problem is that this configuration must be made as automatically as possible in order to reduce the possibility of injection of translation errors into the system. Both DNP3 and 61850 use XML files for configuration, but these files contain different types of information. On the DNP3 side, the XML file contains a one-to-one mapping of DNP3 objects to 61850 object attributes. On the IEC side, there is also a one-to-one mapping of the data attributes to a (type-less) “short address”. The missing piece is the algorithm needed to transfer the data value and data semantic between the system. Adding the information to DNP3 XML files is a possibility, although the DNP3 XML format forbids extensions which are not built into the DNP3 specification. Here DNP3 has the advantage wherein the specification can be extended without lengthy balloting reviews. Adding the information to the IEC XML file is actually much simpler because multiple extension rules are built into the 61850 System Configuration Language (SCL) standard. One set of extension rules, known as “private data”, allows new (usually vendor-specific) information to be added almost anywhere within SCL. Another set of rules, “extension schemas”, allows more targeted extensions. It is unknown at this time which extensions to each of the XML file format will yield the optimal object transfer mechanism.

Who:

PAP-12 Meeting Minutes and Material

Meeting minutes, slides, and other notes may be found here: PAP12MeetingMinutes

IEEE WG C14 Meeting Minutes and Material

Meeting minutes, slides, and other notes may be found here: C14MeetingMinutes

IEEE WG C14 Document Drafts

Current chapter and document drafts may be found here: C14DocumentDrafts

Please enter any comments here:

• 2010-03-08__NIST_PAP-12_Meeting_Notes_and_Actions_-_V2.pdf: 2010-03-08__NIST_PAP-12_Meeting_Notes_and_Actions_-_V2.pdf

• 2010-03-23_DNP-IEC61580_Mapping_Use_Cases_2010-03-23_DistribuTECH.pdf: Update of the PAP-12 mapping work to the joint DNP User Group and the UCA-IUG Meeting - March 23, 2010 (Grant Gilchrist)

• 2008-1-11_IEC_61850-80-1__57_916e_DTS.pdf: This is a Draft Technical Specification (DTS) version of IEC 61850-80-1. This document is the guideline for exchanging information between IEC 61850 and IEC 60870-5-101/104 which are the IEC equivalents of DNP serial/LAN.

• 2011-03-30_SGIP_Face_to_Face_Meeting_-_PAP-12_Presentation_-_RF__GG_-_V2.pdf: Slides for PAP-12 at Nashville SGIP meeting on March 30, 2011

• 2011-03-30_SGIP_Face_to_Face_Meeting_-_PAP-13_Presentation_-_RF_-_V2.pdf: Slides for PAP-13 at Nashville SGIP meeting on March 30, 2011