Product category:
Electrical systems
News Release from: Rockwell Automation | Subject: DeviceLogix
Edited by the Manufacturingtalk Editorial
Team on 04 May 2001
Distributing Intelligence to the Device
level
Rockwell Automation introduces DeviceLogix, a new smart component technology that can be integrated into plant floor devices to provide low-cost control a
Rockwell Automation introduces DeviceLogix, a new smart component technology that can be integrated into plant floor devices to provide low-cost control at the device level This new technology improves overall control system responsiveness, fault tolerance and helps optimise the performance of central controllers
This article was originally published on Manufacturingtalk on 22 Mar 2002 at 8.00am (UK)
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Rockwell Automation has added DeviceLogix intelligence to its Allen-Bradley DeviceNet Starter Auxiliary (DSA), enabling simple control functions to be delegated to the component level.
DeviceLogix provides a simple method of embedding control into a wide variety of components such as I/O blocks, motor starters, overload relays and sensors.
Designed with a very small memory footprint, it offers simple, stand-alone features such as signal-conditioning, event detection, alarming and Boolean logic execution.
"Contemporary control and networking technologies are allowing us to embed control in even the simplest of devices," said Mark Daniels, product manager CIG, Rockwell Automation.
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"DeviceLogix allows OEMs and end users to execute simple control at the device level and lets central controllers concentrate on data gathering and other more advanced functions." With DeviceLogix, processing can now be performed at a push button station or on a distributed I/O system at component level.
The time to sense and then act is significantly reduced due to local processing and results in higher network performance.
Configuring the control behaviour of a specific device is as simple as configuring the device's other parameters such as network node address, baud rate and input filter times.
Not only does such an approach offer the opportunity to offload routine processing tasks from the host controller, freeing it up for higher- level supervisory tasks, but it can have significant performance implications, as well as simplifying control system architectures.
Rapid response control actions in, for example, materials handling applications could now be initiated by DeviceLogix enabled I/O, immediately next to the point of control, rather than involving the delay inherent in transmission over substantial distances between the I/O and the host controller.
Distribution of control from a central host controller to the field also has the potential to improve the ability of the system to tolerate single or even multiple fault conditions.
Acceptance of the concept of distributed control will involve a major cultural change on the part of users.
Maintenance teams will have to accustom themselves to trouble shooting systems whose control logic resides not in a single central location but in a diversity of field mounted devices.
Equally, system designers and specifiers will increasingly appreciate the freedom to implement system functionality, wherever it contributes most effectively to system performance and availability, free from arbitrary technical limitations.
The first Rockwell Automation components to use DeviceLogix technology are the ArmorBlock MaXumTM I/O, 1791D CompactBlockTM I/O, 1799 Embedded I/O, 800E DeviceNetTM Push Button Stations and the DeviceNet Starter Auxiliary. Request a free brochure from Rockwell Automation ...
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