Redundant automation system

摘要

The method involves connecting a user computer (100) and the gateway-computers (201,202) to a bus system (20), where the gateway-computers and the programmable logic controls (10,11,12,13,14) are connected to another bus system (30). The programmable logic controls are controllable by the user-computer over one of the gateway-computers. The user-computer contacts a virtual gateway-computer (200) with a virtual qualifier for all gateway-computers of an automation system (1) to construct a communicating connection between one of the user-computers and one or more programmable logic controls. An independent claim is included for an automation system has a bus system that is adapted to provide a communication based on the Transmission control protocolor Internet protocol.