CANopen学习笔记介绍了PDO等功能。-CANopen PDO study notes describes the functions.

PIC18F单片机根据CIA301标准编写的CANOPEN通讯，可以实现NMT、SDO、PDO功能。(PIC18F microcontroller in accordance with the CIA301 standard written in CANOPEN communication, you can achieve NMT, SDO, PDO functions.)