| 摘要 |
PURPOSE:To confirm the result of execution of an instruction by sending an instruction with reply request from a controller to other station and storing an index data representing the storage position of status information corresponding to the said instruction returned from the said station. CONSTITUTION:When a controller obtaining a token sends a write instruction with reply request to other station, the index data commanding the storage position of the status information corresponding to the said instruction returned from the station receiving the instruction is stored. Thus, the controller, in obtaining the token later, uses the said index data and retrieves and confirms the status information corresponding onto the other station.
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