Emerson Process Management Bristol ControlWave PAC Redundancy User Manual

Product Overview

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June 25, 2007 - Page 1

Bristol® ControlWave® PAC Redundancy

Features

Process Control and Communications Redundancy

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Dual CPU, Dual Power Supply Sequencers

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Automatic Failure Detection

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Automatic Switchover to Hot Standby Controller

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High Reliability

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No Single Point of Failure

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Communication Channel Switching

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Alarm and Historical Data Backup

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No programming required for redundancy data

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transfer

Upgrade programs on the y

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FTP Server

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Convenient Packaging

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Redundant systems are offered for critical processes
and harsh applications that require maximum
operational readiness and system availability.
Bristol® ControlWave® PAC Redundant Systems,
from Emerson Process Management, are designed
to prevent a single point of failure from shutting
down the system. This design delivers a redundant
system that provides high availability, reliability
and safety.

CPU Hot Standby – In the event of a failure of the

primary CPU, the system will automatically switch
to the Hot Standby Backup CPU. All process control
and communication functions are automatically
switched to the backup. This method offers a high
degree of control reliability and system availability
at the most economical cost.

Data Backup – The standby CPU is automatically
updated via Ethernet link to the on-line unit. In

addition to real-time data backup, ControlWave
also provides backup of all alarm events and the
distributed historical database. These functions
are all pre-congured, and no control program­ming is required to implement the redundancy
functionality.

Controlwave Redundancy Systems include a
stainless steel chassis that houses the primary

and standby CPU’s and Power Supply Modules.

The chassis also house the ControlWave CPU and
Communications Redundancy Switch Module.
The Switch Module allows automatic and manual
selection of the primary controller CPU in case of
hardware failure, and will additionally switch up
to four serial communication ports to the selected
primary CPU of the pair.

ControlWave I/O Expansion Racks or Remote I/O

Modules are used for the process interface.

Remote Automation Solutions

www.EmersonProcess.com/Remote

Product Overview

415ov3a
June 25, 2007 - Page 2

Bristol ControlWave PAC Redundancy

© 2007 Remote Automation Solutions, division of Emerson Process Management. All rights reserved.

Bristol, Inc., Bristol Babcock Ltd, Bristol Canada, BBI SA de CV and the Flow Computer Divis ion , are wholly owned subsidiaries of Emerson Elec tric Co. doing business as Remote Automation
Solutions (“RAS”), a division of Emerson Process Management. FloBoss, ROCLINK, Bristol, Bri stol Babcock, ControlWave, TeleFlow and Helicoid are trademarks of RAS . AMS, PlantWeb and the

PlantWeb logo are marks of Emerson Elec tric Co. The Emerson logo is a trademark and ser vice mark of the Emerson Electric Co. All other marks are property of their respective owners.

The contents of this publication are presented for informational pur poses only. While every effort has been made to ensure informational accuracy, they are not to be construed as warranties or

guarantees, express or implied, regarding the products or services described herein or t heir use or applicability. RAS reserves the right to mo dify or improve the designs or specications of such
products at any time with out notice. All sales are governed by RAS’ terms and conditions which are available upon request. RAS does not assume responsibil ity for the selection, use or mainte-

nance of any product. Responsibilit y for proper selection, use and maintenance of any RAS product r emains solely with the purchaser and end-user.

Emerson Process Management
Remote Automation Solutions

Watertown, CT 06795 USA T 1 [phone]
Mississauga, ON 06795 Canada T 1 [phone]
Worcester WR3 8YB UK T 44 (1) 905-856950

Website: www.EmersonProcess.com/Remote