COMMUNICATION CONTROLLER
PURPOSE: To improve the reliability by receiving data converted into information in the minimum unit and sending the data as selection information and control information of plural controlled object equipments so as to allow the operator to receive equipment selection and control information without...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE: To improve the reliability by receiving data converted into information in the minimum unit and sending the data as selection information and control information of plural controlled object equipments so as to allow the operator to receive equipment selection and control information without notifying a reply from a slave equipment. CONSTITUTION: A man-machine equipment 2 of a master station equipment 1 generates logic terminal data based on the input of selection information and operation information of a controlled object equipment 21 from the operator. The data are sent to a transmitter-receiver 4 and a selection code of the equipment 21 is sent from the transmitter-receiver 4 to a slave equipment 20. The equipment 20 outputs selected information to the equipment 21 and selection end information representing the end of selection of the equipment 21 is sent to the transmitter- receiver 4. The transmitter-receiver 4 sends the operation to the equipment 21 to the slave equipment 20 and informs the information of the end of equipment selection to the transmitter- receiver 4 after the end of transmission. On the other hand, in the case of level control, selection release is sent to the equipment 20 in a timing when the operation of the controller 12 is finished and when a selection release time-out counter expires because the counter cannot obtain selection end off information, the control processing is locked and n error report as expiration of selection release is outputted to a network 3 via a circuit 15. |
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