| 摘要 |
An automation system has a first automation controller and a redundant second automation controller. The automation system further includes at least one peripheral unit and a bus system interconnecting the two automation controllers and the at least one peripheral unit. The peripheral unit is connected to the bus system through a bus interface unit. The bus interface unit has a first bus controller associated with the first automation controller, a second bus controller associated with the second automation controller, and a switching unit for switching between the two bus controllers. A method for operating the automation system selects one of the two automation controllers for controlling the automation system, depending on the situation. |
