| 摘要 |
The present invention provides a PLC system which can replace a malfunction module without requiring the other components to be replaced when the specific module malfunctions. Accordingly, the input/output module of the PLC system includes an input/output board including an input/output unit which receives an external signal or transmits an internal signal; and an MPU board including an MPU block which processes the signal from the input/output unit to deliver the signal to an internal component or transmits the internal signal to the input/output unit. The input/output board and the MPU board are detachably arranged in the PLC system. |
