| 摘要 |
PROBLEM TO BE SOLVED: To execute data transmission/reception tolerable to a communication failure without reducing a communication band in a communication network system performing periodic data transmission by using a plurality of transmission lines. SOLUTION: A communication system has a plurality of nodes (10-1, 10-n) and a communication network (100) having a plurality of transmission lines for executing data transmission between the respective nodes. Each node performs periodic data transmission by slots of the plurality of transmission lines. Each node has a transmission data slot assignment part (15-1) for selecting a transmission line and a slot, respectively, for data transmission on the basis of data items of data to be transmitted and the communication cycle number, and a received data storage part (16-1) for determining data items of received data on the basis of the transmission line, the slot, and the communication cycle number by which the data are received. One data item is transmitted and received via a different transmission line and a different slot according to the communication cycle. COPYRIGHT: (C)2011,JPO&INPIT
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