Integrated UCA^TM For Gas Industry

Volume 2: Gas Industry Device Object Models

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.

Volume 2 defines device object models for the gas industry, based on UCA and other previous work. The object modeling approach follows the UCA technology and includes logical devices (e.g. a gate station), modular subsets called "bricks" (e.g. an electronic flow computer), data objects (e.g. a flow valve) and data object attributes (e.g. a time stamp). The report presents tables that manufacturers of equipment for the gas industry can use to develop gas device objects for both gateways and embedded software. Engineers and planners at gas utilities can use these device objects to develop requirements and scenarios for real-time operations.

CONTENTS

1 INTRODUCTION
2 SUMMARY OF RESULTS
3 BACKGROUND CONCEPTS
4 GAS DEVICE OBJECT MODELS

Pressure Monitoring Station
Transmission Gate Station
Gas Flow Monitor
Gas Flow Meter
Pressure Regulating Station
Flow Measuring and Regulator Station
Pressure Regulating Valve
Gas Quality Monitor
Power Supply
Cathodic Monitoring Station
Cathodic Protection Station
Example Device Object Decompositions

5 GAS DEVICE OBJECT DEFINITION TABLES
6 FURTHER WORK
7 SUMMARY AND RECOMMENDATIONS

General information about UCA