| 摘要 |
PURPOSE:To simply detect transmission error for each destination by comparing a data received this time and a data received in the preceding time in a system sending a frame including data addressed to plural equipments cyclicly for each destination. CONSTITUTION:A sender equipment 1 applies time division multiplex to data A<B<C addressed to equipments a, b, c of reception side and sends the data cyclicly to a data transmission line 3. A reception control section 4 compares each data with a data received precedingly at each destination equipment and makes a coincident data effective. Then even if a transmission error takes place in the data addressed to an equipment in the same frame, the data addressed to other equipments is made effective. Moreover, the processing is very simple such as the comparison of data this time and in preceding time, the constitution of the receiver side equipment 2 is simplified.
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