Integrated UCATM For Gas Industry

Integrated UCA^TM For Gas Industry

Volume 1: Gas Industry Requirements

Final Report, March 2001

ORDERING INFORMATION

Requests for copies of this report should be directed to the EPRI Distribution Center, 1355 Willow Way, Suite 2478, Concord, CA 94520, (800) 313-3774.

REPORT SUMMARY

This three-volume report examines the application of the Utility Communications Architecture (UCA) Version 2 by the gas industry to standardize communications for monitoring and control. To promote and facilitate interoperability among computer systems in the utility industry, EPRI initiated a program to standardize utility communications. A key result of the program was the development of the UCA, which has since been expanded beyond the electric industry. The most important UCA applications in the gas industry include flow monitoring, quality monitoring, flow data exchange, and flow control supervision at the interface between Transmission and Distribution entities. Within Distribution entities, pressure monitoring, pressure control, and system integrity management are key UCA applications. Continuous flow monitoring for large customers is also a key application. The volume evaluates information flow requirements for the key applications in terms of required services and performance requirements. The report then compares UCA Version 2 capabilities to the key application information flow requirements. The UCA Common Application Services Model (CASM) meets all gas application information flow service requirements. The report includes a simple example of a polled Supervisory Control and Data Acquisition (SCADA) system and shows that, when properly applied, the UCA meets gas industry performance requirements.

CONTENTS

1. INTRODUCTION
2. FUNCTIONAL DEFINITION
3. KEY GAS UCA APPLICATIONS
4. COMMUNICATIONS REQUIREMENTS
5. COMPARING THE UCA TO GAS INDUSTRY REQUIREMENTS
6. SUMMARY AND CONCLUSIONS
APPENDIX A. UTILITY SITE VISIT RESULTS
APPENDIX B. REFERENCES

General information about UCA

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	Integrated UCA^TM For Gas Industry Volume 1: Gas Industry Requirements Final Report, March 2001 ORDERING INFORMATION Order from Gas Research Institute (GRI) Requests for copies of this report should be directed to the EPRI Distribution Center, 1355 Willow Way, Suite 2478, Concord, CA 94520, (800) 313-3774. REPORT SUMMARY This three-volume report examines the application of the Utility Communications Architecture (UCA) Version 2 by the gas industry to standardize communications for monitoring and control. To promote and facilitate interoperability among computer systems in the utility industry, EPRI initiated a program to standardize utility communications. A key result of the program was the development of the UCA, which has since been expanded beyond the electric industry. The most important UCA applications in the gas industry include flow monitoring, quality monitoring, flow data exchange, and flow control supervision at the interface between Transmission and Distribution entities. Within Distribution entities, pressure monitoring, pressure control, and system integrity management are key UCA applications. Continuous flow monitoring for large customers is also a key application. The volume evaluates information flow requirements for the key applications in terms of required services and performance requirements. The report then compares UCA Version 2 capabilities to the key application information flow requirements. The UCA Common Application Services Model (CASM) meets all gas application information flow service requirements. The report includes a simple example of a polled Supervisory Control and Data Acquisition (SCADA) system and shows that, when properly applied, the UCA meets gas industry performance requirements. CONTENTS 1. INTRODUCTION 2. FUNCTIONAL DEFINITION 3. KEY GAS UCA APPLICATIONS 4. COMMUNICATIONS REQUIREMENTS 5. COMPARING THE UCA TO GAS INDUSTRY REQUIREMENTS 6. SUMMARY AND CONCLUSIONS APPENDIX A. UTILITY SITE VISIT RESULTS APPENDIX B. REFERENCES General information about UCA