Network safety standard: European standard EN 50325-5

A new safety protocol is published as a European standard and is available as EN 50325-5.

09/21/2010


The CANopen Safety protocol (CiA 304) developed by CAN in Automation (CiA), international users’ and manufacturers group, is published as an European standard and available as EN 50325–5 from the European Committee for Electrotechnical Standardization (CENELEC) and any National body, CiA announced from Nuremberg, Germany on Sept. 9. The CANopen Safety protocol is an addition to the CANopen protocol standardized in EN 50325–4, also known as CiA 301.

CANopen Safety is designed to allow safety-related communication based on CAN according to IEC/EN 61508. The German TÜV has approved the protocol for use for systems requiring Safety Integrity Level 3 (SIL 3). Safety-related devices use the Safety-related Data Object (SRDO) service, which allows one-to-many communication relations. The SRDO messages are periodically broadcast in the network and any other safety-related device interested in the data can use it without the need of a centralized master. An SRDO consists of two CAN messages where the first CAN message contains the regular data and second CAN message is transmitted on a different identifier with the data content bit-wise inverted. This makes the protocol very efficient as it allows the use of small and cheap micro-controllers as no complicated CRC is used, CiA said.

The first ready-to-use implementations of CANopen Safety are available: The TÜV approved CANopen Safety Chip (CSC02) available from CiA implements the CANopen Safety protocol in a single chip.

The CSC02 allows easy integration of the CANopen Safety protocol into safety-related devices. The first commercial product available that uses the CSC02 is the safety-related encoder family by Posital.

www.can-cia.org

CAN in Automation

- Also read:

How to choose a CANbus industrial controller;

Industrial networks: CAN, CANopen find new applications, including wind power; and

Control Engineering Networks Product Channel.


- Mark T. Hoske, Control Engineering, www.controleng.com, CFE Media, www.cfemedia.com.



No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
Each year, a panel of Control Engineering editors and industry expert judges select the System Integrator of the Year Award winners.
Control Engineering Leaders Under 40 identifies and gives recognition to young engineers who...
Learn more about methods used to ensure that the integration between the safety system and the process control...
Adding industrial toughness and reliability to Ethernet eGuide
Technological advances like multiple-in-multiple-out (MIMO) transmitting and receiving
Virtualization advice: 4 ways splitting servers can help manufacturing; Efficient motion controls; Fill the brain drain; Learn from the HART Plant of the Year
Two sides to process safety: Combining human and technical factors in your program; Preparing HMI graphics for migrations; Mechatronics and safety; Engineers' Choice Awards
Detecting security breaches: Forensic invenstigations depend on knowing your networks inside and out; Wireless workers; Opening robotic control; Product exclusive: Robust encoders
The Ask Control Engineering blog covers all aspects of automation, including motors, drives, sensors, motion control, machine control, and embedded systems.
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
News and comments from Control Engineering process industries editor, Peter Welander.
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
This is a blog from the trenches – written by engineers who are implementing and upgrading control systems every day across every industry.
Anthony Baker is a fictitious aggregation of experts from Callisto Integration, providing manufacturing consulting and systems integration.
Integrator Guide

Integrator Guide

Search the online Automation Integrator Guide
 

Create New Listing

Visit the System Integrators page to view past winners of Control Engineering's System Integrator of the Year Award and learn how to enter the competition. You will also find more information on system integrators and Control System Integrators Association.

Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.