You are in the: Small Business Computing Channelarrow View Sites +
Small Business Technology
» ECommerce-Guide | Small Business Computing | Webopedia | WinPlanet |  »Close
Enter a word for a definition... ...or choose a computer category.

   Term of the Day
   New Terms
   New Links
   Quick Reference
   Did You Know?
   Tech Support
   Webopedia Jobs
   About Us
   Link to Us

talk to us
   Submit a URL
   Suggest a Term
   Report an Error
Internet Lists
Internet News
Internet Resources
Linux/Open Source
Personal Technology
Small Business
Windows Technology
xSP Resources
Corporate Info
Tech Jobs
E-mail Offers
  Be a Commerce Partner

controller area network
Last modified: Thursday, April 17, 2003 

Abbreviated CAN, a serial bus network of microcontrollers that connects devices, sensors and actuators in a system or sub-system for real-time control applications. There is no addressing scheme used in controller area networks, as in the sense of conventional addressing in networks (such as Ethernet). Rather, messages are broadcast to all the nodes in the network using an identifier unique to the network. Based on the identifier, the individual nodes decide whether or not to process the message and also determine the priority of the message in terms of competition for bus access. This method allows for uninterrupted transmission when a collision is detected, unlike Ethernets that will stop transmission upon collision detection.

Controller area networks were first developed for use in automobiles. Equipped with an array of sensors, the network is able to monitor the systems that the automobile depends on to run properly and safely. Beyond automobiles, controller area networks can be used as an embedded communication system for microcontrollers as well as an open communication system for intelligent devices.

The controller area network, first developed by Robert Bosch in 1986, is documented in ISO 11898 (for applications up to 1 Mbps) and ISO 11519 (for applications up to 125 Kbps).

E-mail this definition to a colleague

Sponsored listings

Pillar Data: SAN Design and Construction Services - Learn how Pillar Axiom lowers TCO and raises ROI by uniting SAN and NAS into one environment with a single storage pool and policy-based management.

Gobal Internetworking: Storage Area Network - Reduce SAN connectivity costs. Increase network diversity and reliability. Global Internetworking designs, implements and manages best-of-breed SAN

Rackspace: SAN Design and Construction Services - Managed hosting solutions with flexible and scalable data storage solutions. 0% downtime with money-back guarantee. 24x7 live Fanatical Support.

For pages about controller area network . Also check out the following links!

Related Links

15 Years of CAN
A short history of the technology from

CAN Information
This description of controller area networks details how messages are broadcast and prioritized.

The CAN Protocol
A detailed explanation of the controller area network from CAN in Automation (CiA).

Sponsored listings

Server Problems? - Network installation and service. Windows Small Business Server 2003 experts. Ask about our special.

Aberdeen: Storage Area Network (SAN) Products - Provides rackmount chassis and server rackmount products, including 1U, 2U, 3U, 4U, and 5U rack servers, NAS, and SAN items.

Voyage Technologies: IBM Storage Area Network (SAN) - A full service provider of IBM RS/6000 and pSeries servers, workstations, peripherals, and parts. Offers vast inventory, testing and refurbishment.

QVS: LAN Networking Hardware - Manufactures cables and connectivity products for the computer and communication industries. Cables, switches, adapters, and fiber optic supplies.

Spectrum Systems: Storage Area Network Products - Supplies server architecture products and systems including tower servers, rackmount servers, server cases, enclosures, and server chassis.

related categories


related terms





Give Us Your

controller area network Products
Compare Products,Prices and Stores

Shop by Category:
Storage Controllers
26 Model Matches

Network Adapters
34 Model Matches

Network Storage
18 Model Matches

9 Model Matches

JupiterWeb networks:

Search JupiterWeb:

Jupitermedia Corporation has two divisions:
Jupiterimages andJupiterWeb

Legal Notices, Licensing, Reprints, & Permissions, Privacy Policy.

Jupitermedia Corporate Info | Newsletters | Tech Jobs | Shopping | E-mail Offers