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News Releases SCHNEIDER ELECTRIC'S AUTOMATION BUSINESS SELECTS RTI'S NDDS FOR DISTRIBUTED CONTROL OVER ETHERNETCritical mass forming behind real-time publish-subscribe standard NORTH ANDOVER, MA - August 22, 2000 - Schneider Automation and Real-Time Innovations (RTI) today announced that RTI's publish-subscribe network middleware, NDDSTM, has been selected to provide real-time communications over Ethernet for the automation vendor's Transparent FactoryŽ open automation solutions. Schneider selected NDDS because it met their rigorous performance requirements and RTI committed NDDS and its expertise to produce a real-time publish-subscribe (RTPS) communications standard. An open, high-performance communications protocol for Ethernet will reduce factory floor wiring costs, give plant managers easy access to the information they need to optimize productivity, and ensure multi-vendor interoperability. "The goal in our Transparent Factory offering is to provide end users of manufacturing systems the timely information they need for decision support using open protocols and Web technology," stated team leader, Richard Galera. "NDDS provides the fast communications and publish-subscribe services we need for our real-time control components. In addition, NDDS uses off-the-shelf TCP/IP protocols, giving our customers seamless integration between manufacturing and data processing systems." NDDS will be incorporated into Schneider's Modicon Telemecanique Premium, Modicon Telemecanique Quantum PLCs and other devices, for example drives or circuit monitors. It will provide the real-time communication required for synchronizing multiple devices and make distributed intelligence practical on a broader scale. NDDS uses a real-time publish-subscribe protocol to deliver data simultaneously to every control component with low communication latency and minimal bandwidth load - two key requirements for using Ethernet for control applications. "End users need an open, RTPS standard to extend Ethernet down to the control, and then the device level," states Stan Schneider, president and chief executive officer at RTI. "Otherwise, different vendors will implement the distributed intelligence communications protocols individually, prohibiting interoperability among devices and locking end users into single vendor solutions." RTI is working with Schneider Automation and the Interface for Distributed Automation (IDA) group to create an open RTPS standard for presentation to several standards communities. "NDDS will track the RTPS standard," Dr. Schneider continued, "so that end users will be able to mix and match software and hardware from these vendors and any others that produce RTPS- or IDA-compliant products." About RTPS The proposed real-time publish-subscribe standard is a set of application programming interfaces (APIs) and communications protocols that use industry-standard UDP (one of the standard Internet Protocols). The publish-subscribe model is now recognized as the most practical and efficient means for distributing data for many-to-many communications. The real-time extensions add APIs that define publication and subscription properties and interfaces programmers use to set data communications deadlines, control data flow, establish publication hierarchies, and reconcile real-time versus reliable communications needs. "Distributed control applications run using a mix of data types, including high-frequency, streaming data, events and alarms, and commands," states Dr. Gerardo Pardo-Castellote, chief technology officer at RTI. "Each type has different requirements with respect to latency, reliability, redundancy, and persistence. The RTPS standard provides an environment in which the programmer can set the properties to accommodate all the data types through a same small set of services." NDDS is an implementation of the proposed RTPS standard. It is network middleware that is available today for a wide variety of real-time embedded and desktop systems. NDDS augments RTPS communications with services that simplify complex, distributed system development and deployment, including development tools, dynamic publication and subscription discovery, multicast support, client-server communications, and wild card subscriptions. Schneider Automation Schneider Electric's Automation Business is headquartered in North Andover, MA. Parent company Schneider Electric, Paris, France, is a global electrical industry leader with 1999 sales of approximately $9 billion. The company has global electrical industry leadership in five strategic business segments: transmission and distribution, low voltage power distribution, low voltage final distribution, industrial control and automation. Its main brands are Merlin Gerin, Modicon, Square D and Telemecanique. Visit them on the web at www.modicon.com and www.transparentfactory.com. Real-Time Innovations, Inc. Real-Time Innovations, Inc. (RTI) is a leading developer of new tools and architectures for the growing real-time software market. The company's products help real-time developers analyze and understand embedded systems, speed development of distributed real-time systems, and coordinate the work of teams of programmers developing large projects. RTI has over 2,000 customers, including leading companies in aerospace, semiconductor equipment, telecommunications, robotics, and industrial automation. A privately held company located in Sunnyvale, Calif., RTI was founded in 1991 and in 1998 was named the 16th fastest-growing private company in Silicon Valley by the San Jose/Silicon Valley Business Journal. Together with our customers, we are 'Shaping the Future of Real Time.' Find out more about NDDS atwww.rti.com. ### NDDS, Real-Time Innovations, and Shaping the Future of Real Time are registered trademarks of Real-Time Innovations, Inc. All other trademarks used in this document are the property of their respective owners. |
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