CiA® 303 series: CANopen-related documents

CiA 303 is a set of documents, having various topics in the scope such as CANopen physical layer network and device design. This includes the CANopen device status indicated by means of LEDs (light-emitting diodes). CiA 303 comprises the following parts:

  • Part 1: CANopen physical layer
  • Part 3: Indicator specification

Part 1 provides some physical network design recommendations. It specifies also the naming conventions for the bus lines, ground lines, and shield connections. Formerly, this document additionally recommended the pin assignment for various types of connectors. These recommendations have been moved to the CiA 106 technical report and are not more limited to CANopen.

Part 3 recommends blinking-patterns for LEDs mounted on CANopen devices, to indicate the status of the device. Such indicators can help service personnel to identify communication problems without using a comprehensive diagnostic tool.

The content of Part 2 defining the representation of the SI units (international system of units) and pre-fixes has been moved to the CiA 890 technical report. This document is not more limited to CANopen specifications.

Title Details
CiA 303-3 version 1.4.0Device and network design - Part 3: CANopen indicators
DescriptionThis recommendation describes the communication-related indicators. Additional application-related indicators are either described in the appropriate device profile or are manufacturer-specific.
TR237 KiB2012-04-27Login
CiA 303-1 version 2.0.1Device and network design - Part 1: CANopen physical layer
DescriptionThis document provides device and network design recommendations for the CANopen physical layer. Additionally, it provides guidelines for selecting cables for use in CANopen systems.
TR216 KiB2023-02-27Login