Method, bus components and a control system for ethernet-based controlling an automation system

摘要

The method involves receiving an Ethernettelegram by an interface of a bus coupler (500) i.e. network coupler. The received Ethernettelegram is converted into an internal data telegram, where the data telegram has a shorter data length than the Ethernettelegram. The data telegram is outputted to a bus subscriber (610) of a secondary bus system (420) by another interface of the bus coupler. The bus system is formed as a ring shaped bus system, and data transmission between the bus coupler and the bus subscriber takes place by summation frame protocol. Independent claims are also included for the following: (1) a control system for process controlling i.e. real time controlling, of an automation system comprising a bus coupler and a bus subscriber (2) a method for exchanging data between a network and a set of bus subscribers.