Invensys’ 2003 Wonderware International WonderWorld(SM) User Conference Exceeds Expectations
Conference Held in United States, Europe and Asia-Pacific

LAKE FOREST, Calif., July 15, 2003 -- Wonderware, a business unit of Invensys Systems, Inc., today announced that its 2003 WonderWorld(SM) user conference exceeded expectations with record-setting attendance. The conference, held throughout the U.S. and for the first time in Europe and the Asia-Pacific, was designed for control and application engineers, plant managers, maintenance planners, information systems personnel specializing in manufacturing production and systems integrators.

Attended by more than 4,000 people worldwide, WonderWorld 2003 displayed how manufacturing customers can significantly increase engineering productivity and agility with the FactorySuite A²™ product line, leveraging Invensys’ new ArchestrA™ software architecture.

“Considering that this was the first international WonderWorld conference, we are very impressed with the number of people who attended and we consider the event a great success,” said Thomas Muth, FactorySuite product marketing manager for Wonderware. “There was a lot of excitement surrounding FactorySuite A² product offerings, such as Wonderware’s new Industrial Application Server, and the plant intelligence solutions in particular.”

In addition, WonderWorld participants learned how Wonderware® plant intelligence solutions provide manufacturers with new engineering capabilities for enhancing operational reporting, efficiency and equipment optimization. They also were introduced to how the latest software additions can lower engineering costs for FDA 21 CFR Part 11 compliance solutions and real-time solutions for collaborative manufacturing.

“This conference was extremely beneficial and had a direct impact on my decision to recommend the use of Wonderware products at my company,” said Edward Boyd, a programmer from Mckee Foods Corp.

WonderWorld Europe was attended by a variety of users including Johnson & Johnson Italy and Danieli Automation, one of the world’s largest equipment suppliers to plants in the metals industry. The WonderWorld Asia-Pacific conference was also attended by prominent customers such as Samsung and the LG Group.

The 2003 WonderWorld conference offered new product updates, structured networking opportunities and detailed explanations of advanced concepts. Participants discussed industrial automation approaches with a host of product developers and system experts.

For information about future WonderWorld conferences, e-mail Wonderware at wonderworld@wonderware.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. Its mission is to power 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 licenses in 100,000 plants worldwide, which is about 30 percent of the world's 335,000 plants with 20 or more employees.

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 £850m (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, Powerware and Teccor. 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.

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Invensys, Wonderware, ArchestrA, FactorySuite, FactorySuite A2, IMServ, Safetran Systems, Burco Systems, Westinghouse Signals, APV Baker, Foxboro, APV, Avantis, Eurotherm, Triconex, Hansen Transmissions, Lambda and Powerware are trademarks of Invensys plc, its subsidiaries and affiliated companies. All other brands may be trademarks of their respective owners.