CANopen References...
Controller Area Network and CANopen in Medical Equipment
The CANopen application layer is the most important standardized CAN-based embedded network. In particular, in medical applications, it has been widely accepted. GE Medical Systems, Philips Medical Systems and Siemens Medical Systems jointly specify the CANopen device profile under the umbrella of the non-profit CiA association.
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Medical Device Network Control Standards
Many medical devices are machines. And, like modern machines in many industries, they employ networks for sharing information and controlling functions. However, unlike in most other industries, medical device manufacturers have been slow to move toward open networking standards for their applications.
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Controller Area Network In Medical Applications
CAN has had an explosive growth in many important embedded systems application areas such as industrial automation, building management, medical, military and to some extent aerospace. This article will examine the use of the CAN protocol in medical systems and discuss several designs were CAN has been successfully employed.
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CAN in Automation Establishes CANopen Special Interest Group for Road Construction Machines
CAN in Automation (CiA) has established the CANopen Special Interest Group (SIG) for road construction machines. The group is going to develop specifications that define interfaces between logical sub-systems and virtual devices in road construction machines networked via CANopen. The specification will simplify the job of system designers of integrating electronic devices into construction machines. Device manufacturers will encounter less proprietary interfaces, making their job easier, and machine builders will be able to source products from different manufacturers and use off-the-shelf CANopen configuration and service tools.
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CANopen-based Transducer Network
The CANopen device profile for transducer submitted to IEEE for standardization can be used to describe multi-sensor devices. Using this profile, the system designer can design cascaded networks. Each device may provide up to 199 sensors and actuators. The multi-channel CANopen transducer module may use embedded communication links as defined in IEEE 1451.
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Use of the Fieldbus System in Academic Setting
Controller Area Network (CAN) is a well-known bus technology in industrial communication systems. This paper shows an implementation of the CANopen protocol in trains and mining machines.
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Approximating CANopen
The CAN standard, popular in automotive applications, defines a simple broadcast serial network that works well for real-time short range communications. But there are few rules at the upper layers. Here's an easy way to keep proprietary application-layer CAN protocols compatible with an open standard.
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Motion Control with CANopen
The CANopen device profile for electric drives was already published in May 1997 by the CAN in Automation (CiA) international users’ and manufacturers’ group, based in Erlangen, Germany. Version 2.0 was published in July 2002 and is currently being revised.
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Implementing CANopen in Autonomous Underwater Vehicles
The current system used for operating data collecting devices on AUVs (Autonomous Underwater Vehicles) are based on RS-232 and Ethernet connections. While this system is functional, many of the current complications could be avoided by using Controller Area Network (CAN).
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Developments in High-Performance Proportional Valves with CANopen Fieldbus Interface
With the introduction of a proportional valve with CANopen interface, MOOG makes a further step into a new era of valve design. The resulting proportional valve includes features that haven't been possible to date. A detailed knowledge of the fieldbus and the device profiles is not essential for a hydraulics expert, because of the availability of setup, diagnostics and configuration tools.
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MicroCANopen is a minimal CANopen implementation targeted at embedded networking applications. MicroCANopen does not aim at 100% CANopen conformance. While it can be made 100% conformant (since V2.00), the primary idea behind MicroCANopen is to simply adapt the minimal set of features that is required to cover standard communication methods and that allow making use of exiting CANopen tools like configurators and analyzers. If the system growths in the future, an upgrade path is already laid out - upgrading to "true" CANopen does not require any changes in the communication channels.
An Introduction to CANopen Based
Distributed Motion Control
By Jan Bosteels, Product Manager
Advanced Motion Controls
http://www.a-m-c.com/download/CANopen.PDF
CANopen Servo Drives
Provide High Performance Motion Control
By D. Jouve & D. Bui
Infranor, S.A.
http://www.infranor.fr/download/publications/CANopen.pdf
NextMove BXII by Baldor provides 2 to 4 axes of coordinated servo motion in a compact book style enclosure that conveniently connects to Baldor's range of servo and vector drives. Synchronization of axes is easily accomplished with the dedicated master encoder input.
On board I/O can be used to control many parts of the machine. This can be further expanded with either Baldor's range of CAN I/O modules operating over the NextMove BX CAN bus, or alternatively, CANopen devices conforming to the standard DS401 I/O profile.
http://www.baldor.com/products/motioncontrol/nmbx.asp
