Patent ID: 7668994
Filing Date: 2010-02-23
Classification: H04J,H04L

Abstract:
1. A method for optimizing an effective data transmission rate in a bus system within an automation system, the bus system having a master device and a plurality of slave devices, the method comprising: providing data transmission via data telegrams based on an Internet protocol, each data telegram having a user-data segment, the user data segment having input-output data sections; changing the data telegram by the master device by shifting input-output data sections, by at least one of reading, deleting, and modifying an input-output data section intended for the master device, and by at least one of generating and modifying an input-output data section intended for one of the slave devices, at the master device, addressing the data telegram to an adjacent slave device; changing the data telegram by one of the slaves devices by shifting input-output data sections, by at least one of reading, deleting and modifying an input-output section intended for the slave device, and by at least one of generating and modifying an input-output data section intended for the master device; at the slave device, addressing the data telegram to an adjacent slave device or to an adjacent master device; ordering the input-output data sections of the data telegram responsive to a physical topology of the bus system and responsive to addressing the data telegram to an adjacent master device or to an adjacent slave device; and wherein one of the slave devices transmits the data telegram at the same time as an adjacent slave device transmits a data telegram and one of the slave devices receives the data telegram at the same time as an adjacent slave device receives a data telegram based on alignment of a clock pulse of the master device and each slave device with the clock pulse of an adjacent master device or an adjacent slave device.