| 摘要 |
A central subassembly for a flexible expandable automation device includes a housing, at least one external expansion module connectable via an input/output bus, a first, a second and a third electronic subassembly, and at least one application program. The first electronic subassembly has a central processing unit in a form of a first microcontroller, a volatile memory configured to store at least one of data of an operating system, data of an application program and variables of the application program, and a flash memory for non-volatile buffering of the data. The second electronic subassembly has a plurality of second inputs and second outputs each configured to connect each of a plurality of process signals. The third electronic subassembly is configured to supply voltage to the central subassembly. The first, second and third electronic subassemblies are disposed in the housing.
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