摘要
服务数据对象(SDO)是CANopen协议定义四种通信对象之一,主要作用是用来读/写对象字典。其中SDO分段传输(大于4字节数据传输)可以传送任意长度的数据。本文详细讨论了在下载、上传数据时,SDO分段传输报文命令字的形式和报文格式等内容。
service data objects（SDO） is defined in the CANopen protocol is one of the four communication object, main function is used to read / write the object dictionary. The SDO segment transmission（greater than 4 bytes of data transmission） can transmit arbitrary length of data. This paper discussed in detail in the download, upload data, form and format of message content section of SDO message transmission command word.
出处
《装备制造技术》
2014年第9期257-259,275,共4页
Equipment Manufacturing Technology
