The future of CAN and CANopen
Friday, July 01, 2011
Guest columnist Holger Zeltwanger gives his views on current trends within CAN and CANopen.
It is now more than 24 years years ago since Bosch and Intel invented the CAN (Controller Area Network) technology. Even after this relatively long time, CAN is far from reaching its peak market penetration. With some 800 million CAN controllers sold per year, CAN is one of the worlds most used real-time communication technologies.
Moreover, CAN is still showing impressive growths rates: In 2015, market researchers expect annual sales figures of 2 billion CAN chips of which 80% will be used in passenger cars. The remaining 400 Million nodes will be used in a wide range of applications such as medical equipment, heavy vehicles, trains, door control systems and all kind of devices in industrial automation.
The key to success in the automotive industry
The internationally standardized CAN data link layer was, is, and will be the dominating in-vehicle network for passenger cars. The robustness of the physical layer (ISO 11898-2 and ISO 11898-3) as well as the reliability of the CAN protocol (ISO 11898-1) with a Hamming distance of six are the key features of the success of this network technology.
However, the standardized data link layer does not provide interoperability. This could be achieved with a standardized application layer and related profiles for devices or applications.
Many standardized CAN-based applications
Besides CANopen (mainly for embedded control systems including machine control) and DeviceNet (dedicated for factory automation), there are standardized CAN-based application layers for heavy-duty vehicles (J1939-based solutions), agriculture machinery (ISO 11783, also known as Isobus), and aviation systems (Arinc 825/6).
CANopen is the most widely spread application layer in non-automotive applications. It is standardized as EN 50325-4 and extended by the EN 50325-5 standard for safety-related communication (CANopen Safety). Beside the above mentioned standardized application protocols, there are numerous proprietary application protocols.
Increasing demand on CANopen connectivity
The CANopen application layer is very flexible regarding the communication functions, and the CANopen device, interface, and application profiles guarantee interoperability and partly exchangeability of devices. Nobody knows how many CANopen nodes are installed per year, but the number is larger than visible by means of devices on the market. This is because many OEMs use CANopen as an embedded technology within their machines.
There is also an increasing demand on CANopen gateways to Ethernet-based networks. Ethernet is often used as backbone, while CANopen is the sub-layered network linking the price-sensitive devices into the Ethernet networks. The CANopen protocol has been adopted by several industrial Ethernet systems including EtherCAT and Powerlink. This simplifies the migration from CAN-based fieldbusses towards industrial Ethernet networks and safeguards the investments in PLCs and control systems.
Holger Zeltwanger
Managing Director of of CAN in Automation e.V (CiA)
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
04/08/2026
Dalet, a leading technology and service provider for media-rich organizations, t...
04/07/2026
April 7 2026, 19:00 (PDT) Detective Conan: Fallen Angel of the Highway Opens in...
01/06/2026
January 6 2026, 05:30 (PST) Dolby Sets the New Standard for Premium Entertainment at CES 2026
Throughout the week, Dolby brings to life the latest innovatio...
30/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/05/2026
Zero in on one that says yes (and no)
Andy Marken May 29, 2026
0 Comments
Hero image courtesy of Deposit Photos
For content creators the most difficu...
29/05/2026
With InfoComm 2026 just weeks away, NDI is giving attendees plenty of reasons to...
29/05/2026
Reaffirming a partnership that has defined Canadian sports broadcasting since 19...
29/05/2026
Mobile/tablet is No. 2 device for watching TV, suggesting that the sports-production industry needs to take another look at the format
Ring Digital's Sprin...
29/05/2026
Berliner Ensemble, one of Berlin's five major theater companies, has expande...
29/05/2026
Solid State Logic will showcase its new compact, fly-away TCA Tour audio product...
29/05/2026
Gerald (Jerry) Pierce, a pioneering technologist who helped shape the digital transformation of the motion picture industry, passed away last month on April 12 ...
29/05/2026
Paramount+ will be the English-language U.S. home for Barclays Women's Super...
29/05/2026
Further strengthening its virtualisation strategy to fully support broadcasters ...
29/05/2026
Swiss broadcaster Canal Alpha has deployed Harmonic's award-winning, software-based XOS Advanced Media Processor to modernize playout operations across cant...
29/05/2026
PTZOptics will showcase a new generation of intelligent video workflows at InfoComm 2026, June 17-19, Las Vegas. Visitors to booth N8227 will see how PTZOptics ...
29/05/2026
Arizona's Family has launched the Arizona's Family Sports (AZFS) streaming app, a new direct-to-consumer destination for live, local sports. The app is ...
29/05/2026
Starting in 2027, DAZN will be the exclusive home of The Canadian Football Leagu...
29/05/2026
Comcast Business has detailed the advanced network infrastructure it has deploye...
29/05/2026
In two-day event, leaders from academia and industry explored solutions to chall...
29/05/2026
The Basketball Tournament (TBT), now entering their 13th year of competition, ha...
29/05/2026
Roku has launched FOX One as a Premium Subscription on The Roku Channel in the U.S. Roku customers can now subscribe to FOX One using their Roku account for liv...
29/05/2026
In its sixth year, the broadcaster's coverage has become a global brand and ...
29/05/2026
Ratings Roundup is a rundown of recent ratings news and is derived from press re...
29/05/2026
The days are getting longer, the temperatures are rising, and playlists are filling up for the season. With summer around the corner, Spotify's global edito...
29/05/2026
New retro-inspired MPC announced
There are few devices that have gained the status held by Akai Pro's MPC range, and in recent years, the company have s...
29/05/2026
Save up to 30 on acclaimed titles
Following a successful launch at Superbooth 2026, Bjooks have revealed that they will be continuing the Kickstarter campa...
29/05/2026
Binaural monitoring application improved
Genelec have just released an update that brings some powerful new features to their HRTF-based binaural headphone ...
29/05/2026
6 June 2026 at SAE Institute, London, UK
IMSTA FESTA 2026 is almost upon us, with some of the biggest names in pro-audio set to descend upon SAE Institute i...
29/05/2026
Gerald (Jerry) Pierce, a pioneering technologist who helped shape the digital transformation of the motion picture industry, died April 12, 2026, at his home in...
29/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/05/2026
Comparing 5 AI Video Enhancers for Restoring Old Video Quality
Kate Luvis May 29, 2026
0 Comments
Digitizing VHS, MiniDV, and other legacy formats doe...
29/05/2026
Studio Hamburg Builds New Post Pipeline with DaVinci Resolve Studio
Brie Clayton May 29, 2026
0 Comments
Workflow replaces a patchwork of legacy tools...
29/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
29/05/2026
At the Intersection of Music and Dance, an Epic Collaboration Boston Conservatory musicians and dancers found creative parallels in their recent performance o...
29/05/2026
Back to All News
Latino Film Institute Fellows Screen Their Short Films at the Egyptian Theatre
The Inclusion Fellowship and Spark Animation Grant uplifts 15 ...
29/05/2026
GLOOKAST LAUNCHES CINNAFILM TACHYON PLUGIN FOR MEDIA PRODUCER AND MEDIA SERVICES
This release first appeared here.
Visit our Tachyon product page or contact...
29/05/2026
May 29 2026, 09:00 (PDT) Dolby and rednote Bring More Immersive Storytelling to...
29/05/2026
Something fundamental has shifted in how people consume media. Audiences aren't abandoning television or radio content; they're just expanding how, wher...
29/05/2026
Youtube exclusive special drops today
Watch now
UKTV today announces another e...
29/05/2026
Back to All News
The Official Trailer of Physical 100 Italy, on Netflix From Se...
The future of CAN and CANopen
