| 摘要 |
PURPOSE:To improve the efficiency of a processing sequence and the common utility of a system, by adopting a pertinent communicating system to each state of comunication. CONSTITUTION:Microprocessor sections 3 and 4 of a secondary station collect data produced at other systems 5 and 6 connected to the sections 3 and 4, respectively. A bus coupler 7 separates a data-transfer-possible condition to the microprocessor section 2 of a master station and the microprocessor section 3 of the secondary station and the microprocessor section 2 and microprocessor section 4 of the secondary station. A communication port 8 manages the communication between the microprocessor section 2 of the master station and microprocessor section 3 of the secondary station. Another communication port 9 manages the communication between the microprocessor section 2 and microprocessor section 4 of the secondary station. Data processing at each microprocessor section 3 and 4 of the secondary station is performed in such a way that data produced at other systems 5 and 6 which are separately connected to the sections 3 and 4, respectively, are collected and a transfer request of these data is performed to the microprocessor section 2 of the master station.
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