Data handshake method based on EtherCAT protocol

摘要

PROBLEM TO BE SOLVED: To provide a method for data hand-shaking based on EtherCAT protocol, which can be applied for an EtherCAT slave device.;SOLUTION: A method includes the steps of: receiving a data packet from a previous device; obtaining self-related data or inserting feedback data to the data packet for generating a processed packet; transmitting the processed packet to a next device; receiving a returned packet returned from the next device; transmitting the returned packet to the previous device; executing a packet distribution program to at least one of the data packet, the processed packet and the returned packet, and generating and analyzing a backup packet, at least part of the content of the backup packet being identical to the content of the data packet, the processed packet or the returned packet; and filtering the backup packet for obtaining designated application data with respect to other slave devices.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2021,JPO&INPIT