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2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents


Vol. 41, Issue 3, March 2004, pp. 197-200




Cascadable Sensor Network


Holger Zeltwanger,

CAN in Automation, am Weichselgarten 26, DE-91058 Erlangen,

Phone: +49-9131-69086-0, fax: +49-9131-69086-79,

E-mail: headquarters@can-cia.org



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


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