Object Dictionary

Analyzing and Implementing CANopen Protocol (Part 1)

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Analyzing and Implementing CANopen Protocol (Part 1)

CANopen protocol is a high-level protocol based on CAN serial bus system and application layer CAL, and it is also a standardized protocol for various industries. CANopen protocol provides necessary implementation methods for distributed control and embedded system applications, mainly providing: (1) interoperability and interchangeability between different CAN devices. (2) Standardized and unified system communication … Read more

Getting Started with CANopen – Part Three

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Getting Started with CANopen - Part Three

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

Introduction to CANopen Concepts

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Introduction to CANopen Concepts

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