On-line Magazine 'Sensors & Transducers' (S&T e-Digest)
(ISSN 1726- 5479)
Vol. 41, Issue 3, March 2004, pp. 197-200
Cascadable Sensor Network
CAN in Automation, am Weichselgarten 26, DE-91058 Erlangen,
Phone: +49-9131-69086-0, fax: +49-9131-69086-79,
Received: 12 March 2004 /Accepted: 20 March 2004 /Published: 23 March 2004
Abstract: Sensor elements in embedded systems are usually connected via non-standardized interfaces to a micro-controller-based controller. In order to reduce the integration effort that is necessary especially in sensor-intensive applications, the CAN in Automation (CiA) international users’ and manufacturers’ group has developed a CANopen device profile (DS 404) for transducers and closed-loop controllers. The profile describes the interfaces for CAN-based sensors, actuators and PID-controllers. The internationally standardized CANopen protocol (EN 50325-4) provides communication services, with which the devices can exchange process data, receive configuration data, and transmit diagnosis data. The digital I/O functions correspond to a sub-group of the CANopen device profile for generic I/O modules (DS 401).
Keywords: CANopen, Embedded, Device Profile, Interface, Standard
Click <here> or title of paper to download the full pages article (352 K).
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