Patent ID: 7894336
Filing Date: 2011-02-22
Classification: G05B,H04L,Y02P

Abstract:
1. A method for controlling the movement of a plurality of machine parts using a communication network tolerating a breakdown or decoupling of at least one network node ( 2 ), wherein the network is operated according to a closed multiple ring structure, in which each node ( 2 ) communicates with a transmitter (TX) or the port ( 12 ) of a first adjacent node ( 2 ) by means of a receiver (RX) or a first port ( 11 ) and with the receiver (RX) or the port ( 11 ) of a second adjacent network node ( 2 ) by means of a transmitter (TX) or a second port ( 12 ), and the closed ring structure is preserved in the case of a breakdown or decoupling of at least one of the nodes ( 2 ), at least one of the nodes ( 2 ) is coupled to the network via a data path switching device ( 1 ) which is actuated in the case of a breakdown or decoupling of said node ( 2 ) in such a way that the communicating nodes ( 2 ) which exist in the network and are arranged next to each other in the ring structure interact in communication by means of a relevant port ( 11 , 12 ) or transmitter (TX) and receiver (RX) thereof after the breakdown or decoupling, the method comprising: (a) operating the network on the basis of a double ring structure; (b) communicating to and from each node ( (c) using at least one switching device ( (d) controlling the switching device (