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AVEVA Enterprise SCADA

TABLE OF CONTENTS

Understanding RealTime

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  • Last UpdatedOct 22, 2020
  • 2 minute read

This manual describes the system for RealTime data gathering, alarm annunciation and response, and interactive device control. Originally developed for oil and gas pipelines, it is also used in the electrical and water transmission distribution and control industries. This document discusses configuration and administration information and procedures that are involved with RealTime services and databases.

  • RealTime service collects and scales data, checks for alarm conditions, stores RealTime information, communicates with remote terminal units (RTUs) or programmable logic controllers (PLCs), and enables the Controller to send out control commands to field devices.

  • easy eXtended Operator Station (ezXOS) enables Controllers to interact with the system; it includes data summaries, dynamic maps, device control dialog boxes, and a mouse-controlled command interface.

There are three user groups: technical, administrative, and operational staff.

  • Technical staff (including engineers and programmers) are responsible for RealTime database (RTDB) configuration, interface design and applications development in languages such as C.

  • Administrative staff, which includes system Administrators, managers and supervisors, are responsible for system maintenance, troubleshooting and future system development. They have access to the operating system and are able to start and stop programs and run utilities and other specialized software.

  • Operations staff are responsible for the daily operations of the system, which includes monitoring of facilities, response to alarms, and control of field devices. Some configuration changes, such as alarm-limit settings, are also under Controller control.

The administration of the system involves the configuration and maintenance of the RealTime database (RTDB), as well as the design and generation of custom reports and displays. This manual provides reference information about these databases. This information is necessary in performing the tasks that are involved.