Communicating wirelessly with CAN networks

CiA has been developing new methods for improving communication through remote and wireless technologies.


For several years, some vendors have provided CAN gateways with wireless links, especially those with Bluetooth applications. Therefore, devices connecting CAN and wireless networks have become standard for CiA members and technicians. The CiA 812 application note describes use cases for CiA 457 compliant gateways. The CiA 457 CANopen gateway profile specifies the wireless communication links. This includes configuration parameters and diagnostic as well status information. The profile supports Bluetooth, WLAN, and proprietary solutions. In typical applications single or multiple sensors are connected wireless to the CANopen network or remote radio I/O modules control the mobile machinery (e.g. crane and other construction machines). Those user panels are equipped with joysticks, pushbuttons, and other I/O elements. If the wireless connected modules are CANopen devices, a tunneling of CAN messages interpreted as CANopen protocols as specified in CiA 315 is reportedly possible. "Since August, CiA has released internally the CiA 315, CiA 457, and CiA 812 documents, which allow a flexible usage of wireless communication links in a CANopen system," said Holger Zeltwanger, CiA Managing Director. "Especially in mobile machines this will simplify system design of heterogeneous network architectures." The system integrator also should refer to the CiA 302-7 bridge-/router specification, in which the Remote SDO and Remote EMCY protocols are defined. 

CAN in Automation

- Edited by Chris Vavra, Control Engineering,

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Make Big Data and Industrial Internet of Things work for you, 2017 Engineers' Choice Finalists, Avoid control design pitfalls, Managing IIoT processes
Engineering Leaders Under 40; System integration improving packaging operation; Process sensing; PID velocity; Cybersecurity and functional safety
Mobile HMI; PID tuning tips; Mechatronics; Intelligent project management; Cybersecurity in Russia; Engineering education; Road to IANA
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
click me