| 摘要 |
PURPOSE:To simplify a communication procedure by allowing a node capable of the reception of all node devices and indicated with a sender address only to send a monitor information signal to return transmittal confirmation information so as to control a node controller. CONSTITUTION:When the monitor communication is designated by an individual communication from a transmission node, the designated reception node equipment replies the transmittal confirmation the same as a conventional individual communication, while the other node equipment not designated applies only the reception. When the multiple address communication is designated from the transmission node equipment, all nodes apply the reception only similar to the conventional multiple address communication and give no response. That is, monitor communication designation information bit is controlled to be disregarded. Thus, the control for transmittal confirmation in the succeeding frame communication is not required. Thus, the transmittal confirmation of the specific node equipment is realized easily similarly as in conventional individual communication and the designation of the reception node equipment to be subjected to transmittal confirmation by the frame transmission node equipment is attained.
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