| 摘要 |
A method and an engineering system that reduce the configuration complexity with regard to a possible expansion of the automation device are provided. The automation device includes slave units and a master unit ( 7, 15 ) connected to the slave units via a bus. The slave units include one or more slave units ( 11, 12, 16, 17 ) and one or more reserve slave units ( 13, 18 ). The configuration of a reserve slave unit ( 13, 18 ) enables the master access time interval ( 20 ) and the slave access time intervals ( 21, 22, 23 ) to be expanded for a possible expansion of the automation device. As a result, a configured automation device of this type can be expanded by an additional slave unit without additional configuration or reconfiguration.
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