Redundant System provides backup for process automation systems.
Press Release Summary:
ControlWave Hot-Standby Control Redundancy System prevents single point of failure from shutting down system. In event of primary CPU failure, system will automatically switch to Hot Standby backup CPU. All process control and communication functions are automatically switched to backup. Standby CPU is automatically updated via Ethernet link to on-line unit. ControlWave also provides backup of all alarm events and distributed historical database.
Original Press Release:
Bristol Babcock Announces Control Redundancy for ControlWave Process Automation Systems
Watertown, CT, August 26, 2002 - Bristol Babcock introduces Hot-Standby Control Redundancy for ControlWave Process Automation Systems.
Redundant systems are offered for critical processes and harsh applications that require maximum operational readiness and system availability. ControlWave Redundant Systems 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 preconfigured and no control programming is required to implement the redundancy functionality.
A Redundant system includes a panel or 19" rack mountable stainless steel chassis that houses redundant Primary and Standby CPU's and Power System modules. The chassis also houses 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.
Bristol Babcock is a worldwide leader in the supply and commissioning of products, services, and engineered systems to the oil, gas, process control, power, water, and wastewater industries. Bristol Babcock Inc. is a member of the Energy Technology Group of FKI plc, headquartered in Loughborough, England.