Patent ID: 8060677
Filing Date: 2011-11-15
Classification: H04L

Abstract:
1. A method for operating a real-time industrial Ethernet EtherCAT system comprising: sending a data fetching frame from a communication master to a plurality of slave nodes; wherein when the data fetching frame passes through one slave node acting as a logic control master, the logic control master inputs control data for the other slave nodes, acting as logic control slaves, into the data fetching frame; and when the data fetching frame passes through the logic control slaves, each logic control slave inputs status data into the data fetching frame; wherein after return of the data fetching frame to the communication master, the communication master sends a data sending frame with output data, said output data being reorganized according to the control relationship between the logic control master and the logic control slaves by the communication master; and wherein when the data sending frame passes through the logic control master, the logic control master gets the status data of the logic control slaves from the data sending frame; and when the data sending frame passes through the logic control slaves, each logic control slave gets command data from data sending frame.