| 摘要 |
PURPOSE:To simply start a transaction by rising a transaction device with the change to a present state of response from an absent state of response of the transaction device against the inquiries of a fixed cycle which are carried out by a CPU for monitor of the transaction device. CONSTITUTION:A CPU 1 serving as a center equipment monitors the transaction devices 2-1-2-n connected to each other via a transmission line 3 as the terminal equipments. Then the CPU 1 designates successively addresses and repeats periodically the necessary communication with the devices 2-1-2-n. In case the device 2-1, for example, that had no response in the present designation of an address, the initial data is sent to the device 2-1 via an initial data setting means 1A, etc., for setting and input of said data. Thus the device 2-1 can easily has an automatic rise. |
