A Forum for Supporters of the Distributed Network Protocol

The development of DNP3 was a comprehensive effort to achieve open, standards-based interoperability between substation outstations and master stations for the electric utility industry. Since its inception, DNP3 has also become widely utilized in adjacent industries such as water / waste water, transportation and the oil and gas industry.

In early 2010, the DNP Technical Committee began working with the IEEE to establish DNP3 as an IEEE standard; IEEE Standard for Electric Power Systems Communications – Distributed Network Protocol (DNP3) was released as IEEE Std 1815TM-2010 later that year. This standard incorporated all of the individual “Basic 8” volumes into one document, with each “Basic 8” volume becoming a separate Clause in the 1815-2010 document.

Since then, members of the DNP Technical Committee and IEEE Power & Energy Society, Transmission and Distribution (PE/T&D) Committee and Substations Committee (PE/Sub) – Working Group C12 have been working diligently to update various sections of the DNP3 specifications.  The result is IEEE Std 1815TM-2012, which was released Oct. 12, 2012.

The updated DNP3 standard contains many changes, including DNP3 Secure Authentication v5, which defines a protocol mechanism that enables a DNP3 outstation/master to unambiguously determine that it is communicating with the correct user/outstation.

IEEE Std 1815-2012 and the accompanying DNP3 Specification Supplement 1 - Device Profile Template and XML Schema are now available for download to DNP Users Group members from the DNP3 Document Library.


Clarification of Event Reporting Requirements and IINs 2.0, 2.1, 2.2 
by Lorene Cunningham
 6/29/2014 6:29 PM
The DNP Technical Committee has released 2 Technical Bulletins:
  TB2014-003a Clarification of Event Reporting Requirements, and
  TB2014-004 Clarification of Internal Indications 2.0, 2.1, and 2.2.
These documents can be downloaded from the Document Library
Validation of Incoming DNP3 Data 
by Lorene Cunningham
 6/29/2014 6:28 PM
The DNP Technical Committee has released an Application Note which details numerous checks that should be performed on received data, in order to verify that the data comprises a valid DNP3 message.
The Application Note AN2013-004a Validation of Incoming...
TB2014-001 1815-2012 Errata 
by Lorene Cunningham
 1/16/2014 5:58 PM
Members of the DNP Technical Committee have identified an error in the first Application Layer breakout figure of Appendix B of IEEE Std 1815-2012 (DNP3). The corrected figure is included in Technical Bulletin 2014-001, which also details previously-identified...
Updated DNP3 Device Profile 
by Lorene Cunningham
 12/31/2013 4:37 AM
The DNP Technical Committee has released an updated Device Profile, which can be downloaded from the DNP3 Downloads.
Updates to the Device Profile include:
- Addition of section 1.1.14 Conformance Testing (Master and Outstation): Specifies the version...
ICS-CERT Notifications regarding DNP3 Attachment
by Lorene Cunningham
 11/12/2013 7:18 PM

ICS-CERT has recently issued a number of advisories that report flaws in the DNP3 interface of various control system devices. The Board of Directors and Technical Committee have been monitoring and investigating these reports: Read their report.

(More Announcements...)

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