Reflective Memory - 8 Pages

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Reflective Memory

Catalog excerpts

Intelligent Platforms

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Great technology from a great company. As a member of the GE family, we are bound by the same ideals that have made GE one of the most admired companies in the world. GE Intelligent Platforms is a leader in Reflective Memory technology, and we offer an extensive selection of proven hardware and supporting software. You can turn to us with confidence, knowing we have over two decades of experience developing Reflective Memory solutions. If one of our standard products is not precisely what your application requires, we are also able to create variations to meet your needs. Our products are...

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Real-time Local Area Networks. Reflective Memory networks are real-time Local Area Networks in which each computer always has a local, up-to-date copy of the network’s shared memory set. Reflective Memory networks are designed to provide the highly deterministic, tightly timed performance necessary for a variety of distributed simulation and industrial control applications. They have benefited from advances in general-purpose data networks, but they remain an entirely independent technology, driven by different requirements and catering to applications where determinism, implementation...

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Determinism, simplicity and sheer performance. Reflective Memory offers unique benefits to the network designer, and therefore has become a de facto standard in demanding applications. Unlike global shared memory systems, in which individual systems vie to access a single, centralized data set, Reflective Memory networks place an independent copy of the entire shared memory set in each attached system. Each attached system has full, unrestricted rights to access and change this set of local data at the full speed of the local memory. Aluminum Rolling Mill On a 3,500 ft/min rolling mill, a...

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Where interaction in real time is a primary concern. Reflective Memory introduces almost no network latency, so it is well suited to applications such as simulation, process automation and test and measurement . Reflective Memory LANs or Real Time Networks are usually constructed because the designer has needs or problems that are solved by one or more of the following Reflective Memory board characteristics: 6 Deterministic data transfers 6 High-speed performance 6 Ease of use 6 Operating system and processor independence 6 Economics and available time to build systems Reflective Memory...

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Choose the network topology that matches your needs. Ring Topology The Reflective Memory ring architecture is capable of data transfer rates of 170 MB/s over fiber-optic media. It is not a collision-based bus arbitration system as most Ethernet systems are, so it avoids the complexities of queuing and checking data packets. This topology also ensures proper connectivity and does not impose additional loading restrictions or termination requirements. Distances between nodes may be up to 10 km. RX TX TX RX RX TX TX RX

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y Star Topology With a fiber-optic hub, the Reflective Memory network will continue to operate even if a node has been turned off. The hub automatically bypasses any network node which ceases operation to ensure data continues to the next node in the network, thus maintaining the integrity of the ring. Hubs can be cascaded, permitting a managed hub array with up to 256 nodes. Each port regenerates the serial optical signal, eliminating problems with insertion losses and cable attenuation. Signal regeneration also reduces jitter. RX TX RX RX TX TX RX RX TX TX

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GE Intelligent Platforms Contact Information Americas: 1 800 433 2682 or 1 434 978 5100 Global regional phone numbers are listed by location on our web site at www.ge-ip.com/contact www.ge-ip.com ©2010 GE Intelligent Platforms, Inc. All rights reserved. All other brands or names are property of their respective holders. 01.10 10M GFA-1283

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