Bristol ControlWave PAC Redundancy Manuals




Product Overview
415ov3a
June 25, 2007 - Page 1
Bristol® ControlWave® PAC Redundancy
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
Data Backup – The standby CPU is automatically 
updated via Ethernet link to the on-line unit.  In 
• Upgrade programs on the fly
addition to real-time data backup, ControlWave 
• FTP Server
also provides backup of all alarm events and  the 
distributed historical database.  These functions 
• Convenient Packaging
are all pre-configured, and no control program-
Redundant systems are offered for critical processes 
ming  is  required  to  implement  the  redundancy 
and  harsh  applications  that  require  maximum 
functionality.
operational  readiness  and  system  availability.  
Bristol® ControlWave® PAC Redundant Systems, 
Controlwave  Redundancy  Systems  include  a 
from Emerson Process Management, are designed 
stainless  steel  chassis  that  houses  the  primary 
to prevent a single point of failure from shutting 
and  standby  CPU’s  and  Power  Supply  Modules.  
down the system.  This design delivers a redundant 
The chassis also house the ControlWave CPU and 
system that provides high availability, reliability 
Communications  Redundancy  Switch  Module. 
and safety.
The Switch Module allows automatic and manual 
selection of the primary controller CPU in case of 
CPU Hot Standby – In the event of a failure of the 
hardware failure, and will additionally switch up 
primary CPU, the system will automatically switch 
to four serial communication ports to the selected 
to the Hot Standby Backup CPU. Al  process control 
primary CPU of the pair.
and communication functions are automatically 
switched to the backup.  This method offers a high 
ControlWave I/O Expansion Racks or Remote I/O 
degree of control reliability and system availability 
Modules are used for the process interface.
at the most economical cost.
Remote Automation Solutions
www.EmersonProcess.com/Remote


Big size of image:

Please install Flash player from http://get.adobe.com/flashplayer/!

41 41 53 53

Designated trademarks and brands are the property of their respective owners | Disclaimer