Emerson Bristol ControlWave PAC Redundancy Operating and safety instructions

Product Overview
415ov3a
June 25, 2007 - Page 1
Bristol®ControlWave® PAC Redundancy
www.EmersonProcess.com/Remote
Remote Automation Solutions
Features
Process Control and Communications Redundancy
Dual CPU, Dual Power Supply Sequencers
Automatic Failure Detection
Automatic Switchover to Hot Standby Controller
High Reliability
No Single Point of Failure
Communication Channel Switching
Alarm and Historical Data Backup
No programming required for redundancy data
transfer
Upgrade programs on the y
FTP Server
Convenient Packaging
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.
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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 program-
ming 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.

Product Overview
415ov3a
June 25, 2007 - Page 2
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
© 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 Division , are wholly owned subsidiaries of Emerson Electric Co. doing business as Remote Automation
Solutions (“RAS”), a division of Emerson Process Management. FloBoss, ROCLINK, Bristol, Bristol Babcock, ControlWave, TeleFlow and Helicoid are trademarks of RAS. AMS, PlantWeb and the
PlantWeb logo are marks of Emerson Electric Co. The Emerson logo is a trademark and service mark of the Emerson Electric Co. All other marks are property of their respective owners.
The contents of this publication are presented for informational purposes 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 their use or applicability. RAS reserves the right to modify or improve the designs or specications of such
products at any time without notice. All sales are governed by RAS’ terms and conditions which are available upon request. RAS does not assume responsibility for the selection, use or mainte-
nance of any product. Responsibility for proper selection, use and maintenance of any RAS product remains solely with the purchaser and end-user.
Bristol ControlWave PAC Redundancy