1、Process Data ObjectPDO（Process Data Object) As mentioned earlier PDO belongs to process data used to transmit real-time data, that is, one-way transmission without the need for a response from the receiving nodeCAN message to confirm, from a communication terminology perspective, it belongs to the “producer-consumer” model PDO, as shown in the figure, it is like … Read more
1、Process Data Object (PDO) and Service Data Object (SDO) MessageID. When using CANopen, the configuration information and application data that need to be transmitted are placed in the Process Data Object PDO (Process Data Object) and Service Data Object SDO (Service Data Object). These objects are like baskets of fruit sold in the market; they … Read more
Author’s Note To make it easier for everyone to find technical articles related to the CANopen bus, we have specially compiled a collection of selected technical articles on CANopen published on the ‘Industrial Communication’ public account. We welcome everyone to check them out, and if you have any questions or suggestions, please feel free to … Read more
Follow our public account to not miss any updates! This tutorial is originally published by the author strongerHuang in October 2018. Tags: CAN, CANOpen, CanFestival Copyright: Commercial use is prohibited Disclaimer:This document is for personal learning purposes only. Please contact the author through the public account for authorization if you wish to reprint. 1Introduction The … Read more
Follow our public account for updates! Don’t miss any news! This tutorial was originally published by the author strongerHuang in October 2018. Tags: CAN, CANOpen, CanFestival Copyright: Commercial use prohibited Disclaimer:This document is for personal study only. Please contact the author for authorization if you wish to reprint. 1Introduction The previous article provided an overview … Read more
CANopen is a communication protocol stack and device configuration profile specification used in embedded systems for automation. In terms of the OSI model, CANopen implements the above layers, including the network layer. The CANopen standard consists of an addressing scheme, several small communication protocols, and an application layer defined by device configuration profiles. The communication … Read more
OD (Object Dictionary): This is an ordered, predefined group of objects that can be accessed via the network, with each object addressed by a 16-bit index and an 8-bit sub-index. The range of a node’s object dictionary is from 0X1000 to 0X9FFF. COB-ID (Communication Object Identifier): This is the message frame ID of the CANopen … Read more
In the field of industrial automation, communication protocols are like the nervous system of modern factories, and CANopen is undoubtedly the most reliable and efficient communication solution within this network. It is not just a communication standard; it is a vital link that connects devices and enhances production efficiency. This article will delve into this … Read more
CANopen is a high-level protocol based on CAN, which is widely used in various automation control systems. CANopen networks use twisted pair cables to transmit differential signals, but factors such as poor electromagnetic environment, non-standard wiring, and unreliable grounding in domestic industrial sites can directly affect communication quality and interfere with bus operation. To ensure … Read more
Follow/Star Public Account to not miss important news! This tutorial is authored by strongerHuang and published. Copyright: Commercial Use Prohibited Disclaimer:This document is for personal learning use only. For reprints, please contact the author through the public account for authorization. To facilitate everyone to view this CANOpen Series Tutorial on their phones anytime and anywhere … Read more