| 摘要 |
PURPOSE:To simplify a device, by providing an interface section which can handle other central operation processing devices viewed from each central operation processing device as a part of input and output points, for the purpose of information exchange among the central operation processing devices. CONSTITUTION:Each central operation processing device 2 is connected to a process input and output bus(hereinafter PI/O bus) belonging to the device 2 itself respectively, and each detecting point 3 is connected to the PI/O bus 9 via an input and output board 13. A multiplex transmission device master station 10 connected to the PI/O bus 9 of the device 2 is connected to othe central operation processig devices 2 via a transmission cable 11 and a multiplex transmitter 12. This multiplex transmitting device is connected to the PI/O bus entirely the same as the other boards 13, and the master station, as the output board, and a slave station, as the input board, receive accessing from the device 2. The accessing method is made entirely the same as that to other input and output boards 13. Thus, the trasmission of information among the central operation processing devices can be made simple. |
