Invensys and Stratus Technologies to Offer High-Availability Option for Systems Using ArchestrA® Technology

LAKE FOREST, Calif., Oct. 23, 2003 -- Invensys and Stratus Technologies today announced that the Invensys line of ArchestrA supervisory and plant intelligence software platforms with Wonderware software is now supported on Stratus® ftServer® fault-tolerant systems. This marketing and sales collaboration comes as part of an independent application software provider (IASP) agreement that Invensys has signed with Stratus.

“Because our customers rely on Wonderware software for a broad range of industrial application solutions -- from supervisory control to plant intelligence -- they need high-productivity software with optimum system availability at a number of price points,” said Steve Lewarne, vice president of product marketing for the Wonderware and ArchestrA business units.

“With the addition of the Stratus continuous computing option to Wonderware’s latest products built on ArchestrA technology, customers have even more options for supporting some of the most demanding applications in the market today.”

The Stratus ftServer family is a full line of Intel® processor-based servers designed expressly for critical processes and operations where business continuity, continuous information access and application availability are essential. Stratus servers offer better than 99.999 percent uptime performance on both the hardware platform and operating system, which includes either Microsoft® Windows® Server 2003 or Windows 2000.

To keep operations online, ftServer systems address the primary causes of system downtime and data loss including single points of failure, hardware failover and recovery time, faulty device drivers, human error, component and software revision incompatibilities. The inherent reliability of the hardware’s fault-tolerant design, coupled with unique software-availability features and integrated ActiveService™ fault detection and isolation technology, aggressively position Stratus against competitors' solutions where reliability and operational simplicity are important.

“As systems integration takes hold within departments, between departments, and throughout the plant, there is a complementary effect,” said Jindrich Liska, Stratus director for manufacturing systems. “The availability of applications and the reliability of the IT support infrastructure increase exponentially in importance. Both Invensys and Stratus are very cognizant of their responsibility to help customers achieve productivity and financial goals, and meet regulatory obligations within their operations with reliable, robust, easy-to-deploy solutions.”

Invensys’ Wonderware software including the Industrial Application Server, which is built on the ArchestrA architecture, InTouch human-machine interface (HMI) software, and the IndustrialSQL Server plant historian, have been tested and validated on the Stratus ftServer 3300 series. The supervisory control systems of these critical production processes require continuous availability. To date, customers with Stratus ftServer 3300 systems have run their applications with no unplanned downtime caused by the server or operating system since this model was launched in March 2003. This entry-level server is the company’s most successful new product to date in terms of quality and user demand.

Only Stratus discloses actual recorded “availability” levels for its products based on reported service incidents from the installed base. The ftServer Uptime Meter(SM) is updated daily and can be viewed on the Stratus website at www.stratus.com/uptime/ftserver.htm. The data is based on operating experience of both the hardware and Microsoft Windows 2000 operating system over the past six months.

About Stratus Technologies

Originally founded in 1980, Stratus Technologies delivers continuously available platforms with unmatched operational simplicity, providing a compelling financial advantage to our customers. Stratus also licenses technology for continuous computing on Intel processor-based platforms to other global manufacturers. Stratus has been named by FORTUNE® magazine as one of the 2002 “Fortune 100 Best Companies to Work For.” Stratus is a U.S. Microsoft Gold Certified Partner.

About Invensys

Invensys is a global leader in production technology. The group helps customers improve productivity, performance and profitability using innovative services and technologies and a deep understanding of their industries and applications.

Invensys Production Management works closely with customers to increase performance of production assets, maximize return on investment in production and data management technologies and remove cost and cash from the supply chain. The division includes APV, Avantis, Eurotherm, Foxboro, IMServ, SimSci-Esscor, Triconex and Wonderware. These businesses address process and batch industries -- including oil and gas, chemicals, power and utilities, food and beverage, and personal health care -- and the discrete and hybrid manufacturing sectors.

Invensys Rail Systems is a global leader in the design, manufacture, supply, installation, commissioning and maintenance of safety related rail signaling and control systems as well as a complete range of rail signaling and communications products. The business includes Westinghouse Rail Systems Limited (WRSL), Dimetronic Signals, Safetran Systems, Burco Services, Westinghouse Signals Australia and Foxboro Transportation. WRSL was recently awarded two contracts valued at more than 850 million pounds (US$1.3 billion) for the renewal of signaling on the London Underground.

Invensys also currently serves other market sectors through its Development Division. The businesses in this division are: Appliance Controls, APV Baker, Climate Controls, Hansen Transmissions, Lambda, Metering Systems and Powerware. Invensys is actively seeking to develop these businesses through equity partners or new owners.

Invensys operates in more than 60 countries, with its headquarters in London. For more information, visit www.invensys.com.

About Wonderware

Wonderware is a business unit of Invensys Systems, Inc. and is the world’s leading supplier of industrial automation software. Founded in 1987, Wonderware pioneered the use of the Microsoft Windows operating system in HMI automation software for manufacturing operation systems. Wonderware powers intelligent plant decisions in real time.

Based in Lake Forest, Calif., Wonderware has regional sales and development offices throughout North America, Europe, Latin America and Asia to provide support to its network of more than 160 distributor offices. Wonderware has approximately 300,000 software licenses in approximately 100,000 plants worldwide, which is about 30 percent of the world’s 335,000 plants with 20 or more employees.

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Invensys, Wonderware, ArchestrA, InTouch, IndustrialSQL Server, APV, Avantis, Burco, Dimetronic, Eurotherm, Foxboro, Hansen, IMServ, Lambda, Powerware, Safetran, SimSci-Esscor, Triconex and Westinghouse are trademarks of Invensys plc, its subsidiaries and affiliated companies. All other brands and product names may be the trademarks of their respective owners.