Ethernet networks with device level ring technology

Rockwell Automation says it has embedded Ethernet device level ring (DLR) technology into its Integrated Architecture system for high-speed, high-performance applications needing resilient networks, and for machine builders looking for flexible, reliable, low-cost network solutions for their real-time EtherNet/IP applications.

09/01/2009


Device Level Ring

Rockwell Automation says it has embedded Ethernet device level ring (DLR) technology into its Integrated Architecture system for high-speed, high-performance applications needing resilient networks, and for machine builders looking for flexible, reliable, low-cost network solutions for their real-time EtherNet/IP applications. Throughout 2009, Allen-Bradley ControlLogix controllers, I/O systems, and Allen-Bradley Kinetix motion solutions with DLR technology will be made available. Rockwell Automation will also release a stand-alone communication module to help manufacturers connect devices not equipped with DLR technology to the ring.

DLR is a network technology for industrial applications that takes advantage of embedded switch functionality in automation end devices, such as I/O modules and programmable automation controllers, to enable Ethernet ring network topologies at the device level. Unlike a network- or switch-level ring topology that provides resilience to the network infrastructure, DLR technology adds device-level network resilience to optimize machine operation.

When a DLR detects a break in the ring, it provides alternate routing of the data to help recover the network at extremely fast rates. Enhanced diagnostics built into DLR-enabled products identify the point of failure, helping to speed maintenance and reduce mean time to repair.

"Functional tests show that the typical recovery time for a 50-node device level ring is less than three milliseconds," said Mike Hannah, manager, Networks Business, Rockwell Automation. "With this fast recovery, most failures become invisible to devices on the network, and machines often continue operating without interruptions. Keeping production running on the plant floor helps increase machine uptime and productivity—important KPIs for today's manufacturers."

Multiport EtherNet/IP devices equipped with DLR technology connect directly to neighboring nodes and form a ring topology at the end devices. DLR technology reduces the number of external components and associated cabling, which eases design and installation for machine builders.

www.ab.com/networks/switches/embedded.html .

 

www.controleng.com





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Save energy with automation; Process control system upgrades; Dispelling controll myths; Time-sensitive networking; Control system integration; Road to IANA
Additive manufacturing advancements; Machine vision enhances robotics; Fieldbus evolution; Process safety; Advice from System Integrators of the Year; Road to IANA
Salary and career survey: Benchmarks and advice; Designing controls; Remote data collection, historians; Control valve advances; Hannover Messe; Control Engineering International
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Digital oilfields: Integrated HMI/SCADA systems enable smarter data acquisition; Real-world impact of simulation; Electric actuator technology prospers in production fields
click me