American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.7
Title: Outage Management System Poll – Multicast Use Case Subject Matter Expert:
Author:
Frank Wilhoit and Margaret Tim Simmons/Chris Martin Goodrich
Reviewed by: Margaret Goodrich
Outage Management System Poll Multicast "Acknowledgment: This material is based upon work supported by the Department of Energy under Award Number DE-OE0000193." Disclaimer: "This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof."
Version History Rev. Date A 12/1/10 B 03/15/11 C D E F G H I
Author Tim Simmons Tim Simmons
Change description Initial Release Add use case template and XSD diagram Update references section and pre/post 04/20/11 Tim Simmons conditions 04/21/11 Tim Simmons Added sequence diagram 05/02/11 Tim Simmons Removed MOP from use case per SME 08/08/2011 AEP workshop Various updates 9/9/2011 Tim Simmons Implement updates from workshop Add Narrative, Interface Diagram, Notes section 10/13/2011 Brian D. Green and update Actors and steps 10/31/2011 Ron Cunningham Final team review Copyright © 2011 American Electric Power Company
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.7
Title: Outage Management System Poll – Multicast Use Case Subject Matter Expert:
Author:
Frank Wilhoit and Margaret Tim Simmons/Chris Martin Goodrich
Reviewed by: Margaret Goodrich
Summary: The Outage Managament System (OMS) poll is an OMS Poll of certain Smart Meters that will enable operations personnel to determine if an outage is still valid. The OMS Poll is a multicast which can be initiated manually or automatically. This is used when trying to diagnose the extent of an outage event. Narrative: The OMS issues an OMS Poll Multicast Request to the AMI Head-End. The OMS Polling Multicast Request travels from the AMI Head-End, through the AMI Network to the multicast set of the NICs (part of the Smart Meter). The NIC transmits the polling request to the Meter Metrology Board (part of the Smart Meter) where the voltage is actually read and returns the value to the NIC. The NIC sends the meter reading back up through the AMI Network to the AMI Head-End. The AMI Head-End sends the meter reading to the OMS.
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Copyright © 2011 American Electric Power Company
Rev. 9
4.5 Advanced Metering Infrastructure
American Electric Power
Document ID: Use case # 5.7
Title: Outage Management System Poll – Multicast Use Case Subject Matter Expert:
Author:
Reviewed by:
Frank Wilhoit and Margaret Tim Simmons/Chris Martin Goodrich
Margaret Goodrich
Interface Diagram:
Operations
OMS
42
AMI Head-End
2
AMI Network
3
Smart Meter
Customer
Note(s): The NIC and the Meter Metrology Board are parts of the Smart Meter.
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Copyright © 2011 American Electric Power Company
Rev. 9
4.5 Advanced Metering Infrastructure
American Electric Power
Document ID: Use case # 5.7
Title: Outage Management System Poll – Multicast Use Case Subject Matter Expert:
Author:
Reviewed by:
Frank Wilhoit and Margaret Tim Simmons/Chris Martin Goodrich
Margaret Goodrich
Actor(s): The list of the actors and the roles that are participating in this use case described in the table below. Name
Role description
AMI Head-End
The AMI Head-End is the back office system that controls the Advanced Metering Infrastructure
Meter Metrology Board
The board, internal to the Smart Meter, on which the functions of the Smart Meter are configured and performed.
NIC
AMI Network interface component with Meter Metrology Board within the Smart Meter.
OMS
(The Outage Management System Initiates the meter polling request
Participating Business Functions: The participating business function, its acronym and what they provide in this use case are detailed in the table below. Acronym
Business Function/Abstract Component
Services or Information Provided
AMI
Advanced Metering Infrastructure for energy monitoring and recording, load control capability, tariff/rate data collection.
Energy monitoring and control, configuration of advanced meters, offers new rate programs, distribution automation, Meter Readings, Meter Events and Alarms.
OMS
Outage Management System
Poll Request
Assumptions / Design Considerations:
•
Standard International Electrotechnical Commission (IEC) 61968 Message Definition format will be followed to provide the Header, Request, Reply, and Payload used when defining the messages for the design specifications. For the purpose of the use cases identified in this document these have been omitted as they are to be provided in the design specification for the Outage Management System Poll – Multicast use case.
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Copyright © 2011 American Electric Power Company
Rev. 9
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.7
Title: Outage Management System Poll – Multicast Use Case Subject Matter Expert:
Author:
Reviewed by:
Frank Wilhoit and Margaret Tim Simmons/Chris Martin Goodrich
Margaret Goodrich
Normal Sequence: The sequences of events, showing the order in which they ocurr during the typical progression of this use case are provided in the table below. The Sequence Diagram that graphically depicts the events is presented immediately following the table. Use Case Step
1
Triggering Event
OMS Poll Multicast initiated
Description Of Process
Information To Be Exchanged
Producer
Receiver
Message Type
OMS Issues OMS Polling Multicast Request to the AMI Head-End
OMS Polling Multicast Request
OMS
AMI HeadEnd
Get /MeterReading s
2
AMI Head-End sends OMS Polling Multicast Request to multicast set of NICs via the AMI Network
OMS Polling Multicast Request
AMI HeadEnd
AMI Network
Proprietary
3
AMI Network routes OMS Polling Multicast Request to multicast set of NIC
OMS Polling Multicast Request
AMI Network
NIC
Proprietary
4
NIC sends OMS Polling Request to the Meter Metrology Board
ANSI C12.19 Table Data
NIC
Meter Metrolog y Board
read ANSI C12.19 Table Data
Meter Metrology Board responds with OMS Poll Response to NIC
ANSI C12.19 Table Data
Meter Metrolog y Board
NIC
read-response ANSI C12.19 Table Data
6
NIC returns OMS Poll Response to AMI Head-End via the AMI Network
OMS Poll Response
NIC
AMI Network
Proprietary
7
AMI Network routes OMS Poll Response to AMI Head-End
OMS Poll Response
AMI Network
AMI HeadEnd
Proprietary
8
AMI Head-End sends OMS Poll Response to OMS
OMS Poll Response
AMI HeadEnd
OMS
Reply /MeterReading s
5
OMS Poll Request received
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Copyright © 2011 American Electric Power Company
Rev. 9
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.7
Title: Outage Management System Poll – Multicast Use Case Subject Matter Expert:
Author:
Frank Wilhoit and Margaret Tim Simmons/Chris Martin Goodrich
Reviewed by: Margaret Goodrich
Integration Scenarios: Adapters will use the Common Information Model (CIM) in Extensible Markup Language (XML) to send and receive messages and events. The following are the points of integration that must be tested for this use case. Other non-CIM message interfaces may be testable in this use case. Actor
Interface Points
OMS
• • •
NIC
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AMI Head-End Meter Metrology Board AMI Head-End
Copyright © 2011 American Electric Power Company
Rev. 9
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.7
Title: Outage Management System Poll – Multicast Use Case Subject Matter Expert:
Author:
Reviewed by:
Frank Wilhoit and Margaret Tim Simmons/Chris Martin Goodrich
Margaret Goodrich
Pre-conditions: The following conditions that MUST be met before this use case can occur. • •
OMS must have a list of valid Smart Meter IDs Smart Meter to be polled must be installed and registered with the AMI Head-End system
Post-conditions: There are no post-conditions defined for this use case.
Exceptions / Alternate Sequences: There are no exceptions, unusual events or alternate sequences defined for this use case. Use Case Step
Triggering Event
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Description Of Process
Information To Be Exchanged
Producer
Receiver
Copyright © 2011 American Electric Power Company
Message Type
Rev. 9
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.7
Title: Outage Management System Poll – Multicast Use Case Subject Matter Expert:
Author:
Frank Wilhoit and Margaret Tim Simmons/Chris Martin Goodrich
Reviewed by: Margaret Goodrich
Message Type(s) Diagram: The following XML Schema Definition (XSD) diagram shows the normative and informative parts of the message. Not all of the International Electrotechnical Commission’s (IEC) – CIM message optional elements must or will be used in the use of IEC – CIM for this specific use case.
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Copyright © 2011 American Electric Power Company
Rev. 9
4.5 Advanced Metering Infrastructure
American Electric Power
Document ID: Use case # 5.7
Title: Outage Management System Poll – Multicast Use Case Subject Matter Expert:
Author:
Frank Wilhoit and Margaret Tim Simmons/Chris Martin Goodrich
Reviewed by: Margaret Goodrich
References: Use Cases or other documentation referenced by this use case include:. •
20100625 AEP Ohio Interoperability Plan V1.docx: Section 4.5.7 (Outage Management System Poll)
•
20100625 Use Cases EPRI Report_V2.4.docx: Section 5.6 (OMS On Demand Poll)
•
61968_9_MeterReadingAndControl_FDIS090428-final.docx: Annex J (Request Parameters): Section J.2 (GetMeterReadings); Annex H (XML Schemas for Message Payloads): H.6 (MeterReadings)
Issues: None ID
1
Description
Status
An end device must be hooked up or test must be stubbed in
Miscellaneous Notes: None
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Copyright © 2011 American Electric Power Company
Rev. 9
