| 摘要 |
The invention relates to an electronic control system, particularly for use in automation technology, comprising a processor unit (1) and at least one input/output module (9, 10, 11), which is separate from the processor unit (1) and which serves to record or generate electrical process signals, this processor unit (1) being connected to the input/output module (9, 10, 11) via a digital data bus (13, 14). In order to provide a control system of the aforementioned type, which has a particularly compact design, can be inexpensively manufactured and is easy to operate, the invention provides that the data bus (13, 14) has a clock line (15, 17) for transmitting a clock signal and has a data line (16, 18) for serially transmitting a data signal. The input/output module (9, 10, 11) comprises a shift register (24, 31), which is controlled by the clock signal and whose data output and/or input are/is connected to the data line (16, 18). |
